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Document:	VAX 6200 Options and Maintenance
Order Number:	EK-620AA-MG
Revision:	001
Pages:	292
Original Filename:

OCR Text

VAX 6200 Options and Maintenance

Order Number EK-620AA-MG-001

This manual is intended for DIGITAL field service
representatives. It covers the installation of modules
and removal and replacement of field-replaceable units
(FRUs).

digital equipment corporation
maynard, massachusetts

First Printing, May 1988
The information in this document is subject to change without notice and should not be

construed as a commitment by Digital Equipment Corporation.
Digital Equipment Corporation assumes no responsibility for any errors that may appear in
this document.
The software, if any, described in this document is furnished under a license and may be used

or copied only in accordance with the terms of such license. No responsibility is assumed for
the use or reliability of software or equipment that is not supplied by Digital Equipment
Corporation or its affiliated companies.
Copyright ©1988 by Digital Equipment Corporation.
All Rights Reserved.
Printed in U.S.A.

The following are trademarks of Digital Equipment Corporation:

DEBNA

ULTRIX

VAXELN

DEC

UNIBUS

VMS

DECnet

VAX

XMl

DECUS

VAXBI

FCC NOTICE: The equipment described in this manual generates, uses, and may emit radio
frequency energy. The equipment has been type tested and found to comply with the limits
for a Class A computing device pursuant to Subpart ] of Part 15 of FCC Rules, which are

designed to provide reasonable protection against such radio frequency interference when
operated in a commercial environment. Operation of this equipment in a residential area
may cause interference, in which case the user at his own expense may be required to take

measures to correct the interference.

Contents
XV

Preface

Chapter 1

1.1
1.2
1.3
1.4
1.5

Introduction

System Physical Description .. ...................
System Functional Description . . . .................
...
...
......
VAX 6200 Front View . .. . ...
VAX 6200 Rear View . ... ... ..... ...
Field-Replaceable Units . . ......................

Chapter 2

1-2
1-6
1-8
1-10
1-12

Diagnostics

DiagnosticOverview. . .. . .......... ...
2.1
Self-Test . ... ..ot
2.2
ROM-Based Diagnostic Monitor Program . . ...........
2.3
RBD Monitor Control Characters . . ... ............
2.3.1
DEPOSIT and EXAMINE Commands . . ... .........
2.3.2
START Command . ... ........ ...t
233
START Command Qualifiers . . ... ..............
234
RBD Test Printout, Passing . . . . .................
2.3.5
RBD Test Printout, Failing . ....................
2.3.6
Sample RBD Session . .......................
23.7
VAX Diagnostic Supervisor Programs . ..............
2.4
Running VDS . .. .. .. ... ... e
241
Sample VDS Session . . . .......... ..o
2.4.2
VDSDiagnostics . ............... .
243

2-2
2-4
2-6
2-8
2-10
2-12
2-13
2-16
2-18
2-20
2-24
2-26
2-28
2-30

Chapter 3

KAG62A Processor

3.1

KA62A Physical Description and Specifications . . . . ...
..

3-2

3.2

KA62A ConfigurationRules . . ... .................

3-4

3.3

KA62A Functional Description . . .. ................

BootProcessor

3.5

Power-UpSequence...........................

3-12

3.6

KA62A Self-Test Results: Console Display . ...........

3-16

3.7

KAG62A Self-Test Results: Module LEDs . . . ...........

3-18

3.8

ROM-Based Diagnostics

. . ......................

3-22

3.9

KA62A Self-TestRBD . ... ......................

3-24

3.10

CPU/Memory Test —RBD'1

.....................

3-26

3.11

Second-Level Cache RBD—RBD 4. .................

3-28

3.12

VDS Diagnostics . .. ..........................

3-30

3.13

Machine Checks

3-32

3.14

ConsoleCommands.

3.15

How to Replace the Only Processor.

. ...............

3-36

3.16

How to Replace the Boot Processor . . . ... ...........

3-38

3.17

How to Add a New Processor or Replace a Secondary
Processor . .. .. ... ... . ... ...

3-40

3.18

PATCH EEPROM Command . ....................

3-42

3.19

PATCH EEPROM Command Error Messages

. .........

3-44

3.20

KA62A Registers . .. ..........
... ..........
..

3-46

Chapter 4

..............
... ...
....
... ...

. .. ... ...... ... ...

.. ........................

3-6
3-10

3-34

MS62A Memory

4.1

MS62A Description

. . ... ............
.......
..

4-2

4.2

MS62A ConfigurationRules . . . . ..................

4-4
4-5

4.3

MS62A Specifications . . . . .....
...
.....
. ... ... ..

MS62A Functional Description . ... ... .............

4-6

MS62AInterleaving . .. ........
......
.. ... .....

4-8

4.6

Interleaving Examples.

.. .......................

4-10

4.7

Console Commands for Interleaving . . ... ...........

4-12

Memory Self-Test

. ...........................

4-14

Memory Self-TestErrors . . ......................

4-16

410

MS62AMemoryRBDs

4-18

4.11

Memory RBD Test Examples

. . .......................
. ....................

4-20

4.12

4.13

MS62A Control and Status Registers . . . . ............
MS62A Memory Installation. . . . . .................

Chapter 5

DWMBA XMi-to-VAXBI Adapter

DWMBA Physical Description . . . .................
... ......
Physical Layout ... ...............
5.1.1
.....
.............
...
.
.
Specifications
DWMBA
5.1.2
DWMBA Functional Description . . . . . ..............
5.2
DWMBA ConfigurationRules . . . . .................
5.3
DWMBA ROM-Based Diagnostics Tests . . ... .........
5.4
...........
.......
DWMBA Registers . . . .. .....
5.5

5.1

Chapter 6

XMI Card Cage Description . . .. ..................
...
...
.......
SystemUse .. ....
6.1.1
...
.............
.
.
Specifications
Cage
Card
XMI
6.1.2
XMI Card Cage Removal . . . . ....................
6.2
Prepare for Removal . . .. ... ..................
6.2.1
...
Removal of XMI Card Cage from Cabinet . . . .. ...
6.2.2

6.6

6-10

Installing Modules in the XMI Card Cage . . .. . ... .....
. ....
XMI Troubleshooting . . . ..................

6-16
6-18

Chapter 7
7.1

7.1.1

7.1.2
7.1.3

7.2
7.2.1

722

6-2
6-2
6-4
6-6
6-6
6-8

Switching XMI Card Cages . ... ..................

Removal of Bus Bars and Daughter Card. . . . ... ... ..
6.3.1
Moving XMI Side Mounting Plates and Installation of Parts
6.3.2
XMI Card Cage Replacement . . . .. ... .............
6.4
6.5

5-2
5-2
5-4
5-6
5-8
5-10
5-12

XMI Card Cage

6.1

6.3

4-22
4-24

6-11
6-12
6-14

VAXBI Card Cage

VAXBI Card Cage Description . .. .................
..
SystemUse...................
..
...........
.
.
.
.
VAXBI Card Cage Specifications
VAXBI Card Cage Subassemblies ... .............
VAXBI Card Cage Removal . . . ...................
Prepare for Removal . . . ... ...................
Removal of VAXBI Card Cages from Cabinet. . . . . . . ..

7-2
7-2
7-4
7-6
7-8
7-8
7-10

7.3

Switching VAXBICages

. .......................

7-12

7.3.1

Removal of VAXBIBusBars . . . ... .............
.

7-13

7.3.2

Removal of Other VAXBI Parts . . . .. ............
.

7-14

Installation of VAXBI Parts . . ... ................

7-16

7.3.3
7.4

VAXBI Card Cage Replacement .. .................

7-18

7.5

VAXBI Expansion and Configuration Rules . . . .. ... ...,

7-20

7.6

VAXBI Troubleshooting

7-22

Chapter 8

. .......................

Control Subsystem Assemblies

8.1

System Control Assembly Specifications

.. .......
...
.

8-2

8.2

8-4

8.3

System Control Assembly Removal and Replacement . . . . .
XTC Power Sequencer Specifications . . . . ............

8.4

XTC Removal and Replacement . ... .............
..

8-8

8.5

Control Panel Assembly Specifications.

. . . ... ........

8-10

8.6

Control Panel Assembly Removal and Replacement . . . . . .

8-12

8.7

TK Tape Drive Specifications . . ... ................

8-14

8.8

TK Tape Drive Removal and Replacement

. .. .....
..
.

8-16

8.9

Filter Board and TOY Clock Battery Specifications . . . . . . .

3-18

8.10

Filter Board and TOY Clock Battery Removal and
Replacement . . . ... ... ... ... ... ... .. ... ...,

8-20

Chapter 9

8-6

Power Subsystem

9.1

Power Subsystem Design

9.2

Power Specifications.

9.3

PowerModules . .. ..... ... .. .. ... . ... ... .. ...

9-6

9.4

H7214 PowerRegulator . . .....................
..

9-8

9.5

H7214 Power Regulator Removal and Replacement

. . . ..
.

9-10

9.6

H7215 Power Regulator . . ... ..................
..

9-12

9.7

H7215 Power Regulator Removal and Replacement

. . . . . .

9-14

9.8

H7206 Power and Logic Unit . ..................
..

9-16

. ......................

9-2

. . . ....
......
... .. ......
..

9-4

9.8.1

Specifications

9.8.2

H7206 Power and Logic Unit Switches and Indicators

. .. ...... ...

... L.
. ..

9-16
9-18

9.9

H7206 Power and Logic Unit Removal and Replacement . . .

9-20

9.10

H7206 Fan Removal and Replacement . . . .. .. ... ... ..
H405 AC Power Controller ... ...................

9-22

9.11

9-24

9.12 H405 AC Power Controller Removal and Replacement . . .
9.13 50 Hz Transformer . . . . . .. ... .. ..t
9.14 50 Hz Transformer Removal and Replacement ... ... ...
9.15 H7231-N Battery Backup Unit . ... ................
9.16 H7231-N Battery Backup Unit Removal and Replacement . .
9.17 H7231-N Battery Backup Unit Installation . ...........
9.17.1 Install the Battery Backup Unit Cables .. ... ........
9.17.2 Install the Mounting Bracket . . . . ... .............
..
9.17.3 Installthe Unit. ... ... ... ... ...

Chapter 10
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8

9-26
9-28
9-30
9-32
9-34
9-36
9-37
9-38
9-39

Cabinet and Airflow Subsystem

Door and Filter Removal and Replacement (Front) . . . . . ..
Door and Filter Removal and Replacement (Rear) . ... ...
Airflow Sensor Removal and Replacement . . . . ........
Temperature Sensor Removal and Replacement. . . . ....
Blower Assembly Specifications . . . ... .............
Blower Assembly, Frontand Rear . . . .. .............
Blower Assembly Removal and Replacement . ... ......
Side Panel Removal . ... ... ... ... . ... .........

Appendix A

Cable List

Appendix B

Troubleshooting the System

10-2
10-4
10-6
10-8
10-10
10-12
10-14
10-16

Glossary

Index

vii

Examples
2-1

Sample Self-Test Results.

2-2

DEPOSIT and EXAMINE Commands

2-3

START Command . ...........................

2-12

2-4

RBD Test Printout, Passing

2-16

2-5

RBD Test Printout, Failing . . .. ...................

2-18

2-6

Sample RBD Session

2-20

2-7

Sample RBD Session, continued . . .. ...............

2-22

2-8

Running Stand-Alone VDS

2-26

2-9

Running Online VDS

. ... ... ...

... ............

2-26

2-10

Sample VDS Session

. . ... .....................

2-28

3-1

ROM and EEPROM Version Numbers . . .. ... ........

3-2

Self-TestResults

3-3

KA62A Self-Test RBD . .. .......................

3-24

3-4

CPU/Memory Test RBD

3-26

3-5

Second-Level Cache TestRBD . . ... ...............

3-28

3-6

Running Stand-Alone Processor Diagnostics

.. .........

3-30

. . ...................

3-36

. ......................

3-38

. . ... ... ...... ... ... ....
. ..............

.. ....................

. .. .......................
. ... ... .. ... . ... .......

. ... .........................

. .. .....................

2-4
2-10

3-8

3-16

3-7

Replacing a Single Processor

3-8

Replacing Boot Processor

3-9

Adding or Replacing Secondary Processor

. ...........

3-40

3-10

PATCH EEPROM Command . . ...................

3-42

4-1

SET MEMORY and INITIALIZE Commands . ..........

4-12

4-2

MS62A Memory Module Results in Self-Test.

. ... .... ..

4-14

4-3

MS62A Memory Module Node Exclusion . . .. .........

4-16

4-4

RBD Test on All Modules with Halt on Error . . . ...
... ..

4-20

4-5

RBD Teston ModuleinSlot A . . ... ...............

4-20

4-6

RBD Test with Module Error

4.7

RBD Test with Confirm Switch . . ... ...

5-1

DWMBA XMI-to-VAXBI Adapter ROM-Based Diagnostics
Tests ... ..

viii

. . . ... ...............

... ... .. .. .,

4-21

5-10

Figures
1-1

1-2
1-3
1-4
2-1

3-1

3-2
3-3

3-4
3-5
3-6

3-7
3-8
4-1
4.2

4-3
4-4
4-5

5-1

5-2

5-3
5-4
6-1
6-2

6-3
6-4

6-5
6-6
6-7

6-8
6-9
7-1
7-2
7-3

7-4

Typical VAX 6200 System . . . . ...................
VAX 6200 System Architecture . . . . ................
VAX 6200 System (Front View) . . . .. ...............
VAX 6200 System (Rear View) . ...................
Diagnostics Design . . . . .. ... ... ...
KA62AModule . . .. ... ... ... e
Typical KA62A Configuration. . . . .................
KA62A Block Diagram . . . ......................
Selection of Boot Processor . . . ...................
KA62A Power-Up Sequence, Part 1of 2 ... .......... L
KA62A Power-Up Sequence, Part2of2 .. ... .........
KAG62A LEDs After Power-Up Self-Test .. ............
The Stack in Response to a Machine Check .. .........
MS62A Module (Side 1) . . ... ... ... ..o
Simplified Block Diagram . .. ....................
2-Way Interleaving . . .. ..... ... ... ... oo
.
4-Way Interleaving . . . .. ... ... . ...
8-Way Interleaving . . . .. ......... ...
DWMBA/AXMIModule . . . .....................
DWMBA/B VAXBIModule ... ...................
DWMBA XMI-to-VAXBI Adapter Block Diagram .. ......
VAX 6200 Slot Numbers . . .. ....................
XMI Card Cage Connections . . . ..................
e
e t
XMICardCage . . ... .. oo itt
...
...........
.
.
.
XMI Backplane Power Connections
XMICard Cage . . . . o oo v it i et
XMI Bus Bar Assembly and Daughter Card . . . ... ......
XMI Cage Side Mounting Plates . . ... ..............
Installation of Foam Air Seals . . . . ... ..............
XMICardCage . . . ... oo i it
Numbering of XMI Slots . . . ... ..................
VAXBI Card Cage Connections . .. ................
VAXBICardCages. . . .......... PSP
VAXBI Card Cage Subassemblies . . ................
VAXBI Backplane Power Connections . . .. ...........

1-2
1-6
1-8
1-10
2-2
3-2
3-4
3-6
3-10
3-12
3-14
3-18
3-32
4-2
4-6
4-10
4-10
4-11
5-2
5-3
5-6
5-8
6-2
6-4
6-6
6-8
6-10
6-12
6-13
6-14
6-16
7-2
7-4
7-6
7-8

7-5

VAXBICardCages.

7-6

VAXBIBus Bar Assembly

7-7

VAXBI Backplane Components.

. .. ................

7-14

7-8

VAXBI Cage Mounting Plates . . . ..................

7-15

. . . ........................

. ...................
...

7-9

Installation of Foam Air Seals.

7-10

VAXBICardCages.

7-10

7-12

. . . ... ..............

7-16

. . ... ......................

7-18

7-11

Numbering of VAXBISlots

. . ....................

7-20

8-1

System Control Assembly . . ... ..................

8-2

System Control Assembly Removal . . . ..............

8-4

8-3

XTC Power Sequencer

8-6

8-4

XTC Power Sequencer Removal

. ..................

8-8

8-5

Control Panel Assembly . . ......................

8-10

. ........................

8-6

Control Panel Assembly Removal . ... ..........
.. ..

8-12

8-7

TK Tape Drive

8-14

. ........
.. ... ....
.. ... ......
.

8-8

TK Tape Drive Removal

. . ......................

8-16

8-9

Filter Board and TOY Clock Battery . . . .. ... .........

8-18

. .......
..

8-20

. ..........
... ......
...

9-2

8-10

Filter Board and TOY Clock Battery Removal

9-1

Power Subsystem Design

9-2

DC Power Regulators in Cabinet (Rear View).

. .. ...
.. ..

9-4

9-3

9-4

Location of Power Modules (Rear View) . . ... ... ... ...
H7214 Power Regulators . . ... ..........
... .. .
..

9-8

9-5

H7214 Power Regulator Removal

9-6

H7215 Power Regulators

. .................

9-10

. . .. ...
...
...
... .. ... . .

9-12

H7215 Power Regulator Removal
9-8

9-6

H7206 Power and Logic Unit

. ...........
.. ... .

9-14

. .................
...

9-16

9-9

H7206 Power and Logic Unit Switches and Indicators . .

9-10

H7206 Power and Logic Unit Removal (Top View)

. . .

9-18

. . ...
..

9-20

9-11

H7206 FanRemoval . . . . . ...

9-12

H405 AC Power Controller

9-13

H405 AC Power Controller Removal . . ............
..

9-26

9-14

50 Hz Transformer (Front View) . . ... ... .........
..

9-28

... ... .. .. ... .. ...,

9-22

. ....................,

9-24

9-15

50 Hz Transformer Removal

. .................
...

9-30

9-16

H7231-N Battery Backup Unit

.. ............
....
..

9-32

9-17

H7231-N Battery Backup Unit Removal . . .. ... ... .. ..

9-34

9-18

Battery Backup Unit Cable Installation . . . ... ... ... ...

9-36

9-19

Mounting Bracket Installation . . . .. .........
... . . ..

9-38

9-20
10-1
10-2
10-3
10-4
10-5
10-6

Battery Backup Unit Installation . .. ................ 9-39
Front Door (Inside View) . . . ... ... .. .. vt 10-2
... 10-4
...
Rear Door (Inside View) . .. ..........
10-6
Airflow Sensor (Front View) . . . . ..................
Temperature Sensor (Front View) .. ................ 10-8
o i 10-10
Blower Assembly . . . ... ... ... ...
. 10-12
..
..
...
...
.
.
FrontBlower.

10-7 Rear Blower ... ... ... . ..., 10-13
10-8 Blower Assembly Removal . ..................... 10-14
. 10-16
... ...
....
10-9 Side Panel Removal . ... .. .......

Tables

1-1
1-2
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
2-9
3-1
3.2
3-3
3-4
3-5

3-6
3-7
3-8
3.9
3-10
3-11
3-12
3-13

VAX 6200 System Characteristics . . .. ..............
Field-Replaceable Units . .. .....................
... ...
Self-Test Components .. ..............
RBD Monitor Commands . . .. ...................
ROM-Based Diagnostics Programs . . . . ... ...........
RBD Monitor Control Characters . .................
DEPOSIT and EXAMINE Command Qualifiers ... ... ...
START Command Qualifiers . ... .................
VAX Diagnostic Program Levels . ... ...............
..o o
.......
VDS Documentation. . .. . ....
VAX Diagnostic Supervisor Programs . ... ...........
KAG62A Specifications . . . . ... ... oo
oo o
KAG62A ErrorLEDs . . ... .. ... ... ...
.........
..........
...
ROM-Based Diagnostics . .
KA62A Power-Up Test—RBD O .. .................
Extended CPU/Memory RBD Test—RBD 1. ...........

Second-Level Cache RBD Test — RBD4 . .............
. o
......
KA62A VDS Diagnostics . . .. ....
Machine Check Parameters . . ... .................
ConsoleCommands. . . .............cun....
PATCH EEPROM Command Error Messages . ... ......
KAG62A Internal Processor Registers . . . . ... ..........
XMI Registers for the KA62A . ... .................
KAG62A Registers in XMI Private Space. . . ............

1-4
1-12
2-5
2-6
2-6
2-8
2-10
2-13
2-24
2-24
2-30
3-3
3-20
3-22
3-24
3-27

3-29
3-30
3-32
3-34
3-44
3-46
3-49
3-50

4-1

Memory Configurations for the XMI Backplane ... ... ...

4-2

.MS62A Specifications . . .. ...,

4-3

Interleaving

4-4

Memory Test —RBD Test3 . .....................

4-18

4-5

RBD Test 3 Parameters . . . ......................

4-19

. ... ..... ...

... ... ... ...

... .. ... ...

. . ... ..

4-4
4-5

4-8

4-6

MS62A Memory Control and Status Registers . . . . ... ...

4-22

4-7

Interlock Flag Registers . . . . .....................

4-23

5-1

DWMBA/A XMI Module Specifications

. . ............

5-4

5-2

DWMBA/B VAXBI Module Specifications . . . . ... ... ...

5-5

5-3

DWMBA Cables

.. ...........................

5-5

5-4

DWMBA Configuration . . . ... ............
. ...
..
.

5-9

5-5

DWMBA XMI-to-VAXBI Adapter RBD Tests

5-6

VAXBIRegisters

. ............................

5-12

5-7

DWMBA XMI Registers . . . . .....................

5-13

. ... .......

5-11

6-1

XMI Card Cage Assembly Specifications

. ............

6-4

6-2

XMICardCage Cables . . . ......................

6-5

6-3

XMI Troubleshooting Checklist.

6-4

XMI Connector Cleaning Supplies

. . .. ... ..........
..
. ................

7-1

VAXBI Card Cage Assembly Specifications.

7-2

VAXBICard Cage Cables

6-18
6-19

. . ... ... ...

7-5

. ..................
.. ..

7-5

7-3

VAXBI Subassemblies and Tools Required . ........
...

7-7

7-4

VAXBI Troubleshooting Checklist . . .. ... .........
..

7-22

7-5

VAXBI Connector Cleaning Supplies . . ... ...........

7-23

8-1

System Control Assembly Specifications

8-2

XTC Power Sequencer Specifications . . .. ............

Control Panel Assembly Specifications.

. ..........
..

8-3
8-7

. . . ... ......
..

8-11

8-5

TK Tape Drive Assembly Specifications . . . .. .....
...
.
Filter Board Specifications . . . .. ......
.. .. ...
..
.. .

8-19

8-4

8-15

8-6

TOY Clock Battery Specifications

. .. ..............
.

8-19

9-1

XMI Side—DC Output Specifications . . . . .. ... ... ... .

9-4

9-2

VAXBI Side—DC Output Specifications . . ..........
..

9-5

9-3

AC Output Specifications

. .. ......
... ... ..
.. ...

9-5

9-4

Powe
. . ...
rM
.......
od
.......
ul
.......
es
....
H7214 Power Regulator Specifications . ............
..

9-9

H7215 Power Regulator Specifications . ... ..........
.

9-13

H7206 Power and Logic Unit Specifications

9-17

9-5
9-6
9-7

xii

.. .........

9-8

9-9

9-10
10-1

10-2
10-3

10-4
10-5
10-6

A-1
B-1

9-25
H405 AC Power Controller Specifications . . ... ........
9-29
.
..........
...
...
.
Specifications
50 Hz Transformer
9-33
H7231-N Battery Backup Unit Specifications . . . ... .....
Front Cabinet Door and Air Filter Specifications .. ...... 10-3
10-5
.
Rear Cabinet Door and Air Filter Specifications . . . . ...
10-6
...
..
.....
......
.
.
.
.
Specifications
Sensor
Airflow
10-9
Temperature Sensor Specifications . ... .............
Blower Assembly Specifications . . ................. 10-11
Side Panel Specifications . . . ... ..... ... .. 0 0oL 10-17
A-1
e e
Cable List. . . . . . ..ot
B-2
...
Troubleshooting Power in the System . . ..........

xiii

Preface

Intended Audience
This manual is written for DIGITAL field service re})resentatives servicing
the VAX 6200 system. This manual covers the installation of modules and
removal and replacement of field-replaceable units (FRUs).

Document Structure
The manuals in the VAX 6200 documentation set are designed using
structured documentation theory. Each topic has a boldface indented
abstract, to help you use the manual as a reference tool. Other typical
components of a topic include an illustration or example, a chart or list, and
descriptive text.

This manual has 10 chapters and two appendixes:

Chapter 1, Introduction gives an overview of the system, including
system specifications, field-replaceable units, system architecture, and
location of major assemblies.

Chapter 2, Diagnostics, describes the levels of diagnostic design, their

Chapter 3, KA62A Processors, Chapter 4, MS62A Memory, and Chapter
5, DWMBA Adapter give module specifications, configuration rules,
main registers, module diagnostics, and self-test information.

Chapter 6, XMI Card Cage, and Chapter 7, VAXBI Card Cage, describe
the system card cage and the 1/O card cage, respectively, and their

implementation, and a patch mechanism for updating the programs.

removal and replacement procedures.

Chapter 8, Control Subsystem Assemblies, presents the four
subassemblies housed in the system control assembly area and gives

the removal and replacement instructions for each subassembly.

Chapter 9, Power Subassemblies, discusses each field-replaceable unit
of the power system, its diagnostics, and the removal and replacement
procedure for the unit.

Chapter 10, Cabinet and Airflow Subsystem, presents
the fieldreplaceable units that are specific to the cabinet and their
removal and
replacement instructions.

Appendix A is the cable list. Appendix B is a troubleshooting
chart. A
Glossary and Index provide additional reference support.

Conventions Used in this Document

FRONT

REAR

CH]

In illustrations, icons are used for designating part placeme
nt within the VAX
6200. The shaded area within the icon shows the location
of the component
or part being discussed. The icons used include:

VAX 6200 Documents
Documents in the VAX 6200 documentation set include:
Title

Order Number

VAX 6200 Installation Guide

EK-620AA-IN

VAX 6200 Owner’s Manual

EK-620AA-OM

VAX 6200 Mini-Reference

EK-620AA-HR

VAX 6200 System Technical User's Guide

EK-620AA-TM

VAX 6200 Options and Maintenance

EK-620AA-MG

Xvi

Associated Documents
Other documents that you may find useful include:
Title

Order Number

CIBCA User Guide

EK-CIBCA-UG

Guide to VAXclusters

AA-Y513A-TE

Guide to VAX/VMS Software Installation

AA-Y514B-TE

HSC50 User's Guide

EK-HSC50-UG

H9657-EU Installation Guide

EK-VBIEU-IN

KDB50 Disk Controller User’'s Guide

EK-KDB50-UG

RA82 Disk Drive User’s Guide

EK-ORA82-UG

SC008 Star Coupler User’s Guide

EK-SC008-UG

TK50 Tape Drive Subsystem User’s Guide

EK-OTK50-UG

TU81/TA81 and TU81 PLUS Subsystem User’s Guide

EK-TUA81-UG

VAX/VMS Networking Manual,
VAX/VMS Volume 6, Networking

AA-Y512C-TE

The VAX Architecture Reference Manual

EY-3459E-DP

VAX Diagnostic Design Guide

EK-1VAXD-TM

VAX Diagnostic Software Handbook

AA-F152A-TE

VAX Diagnostic Supervisor User's Guide

EK-VXDSU-UG

VAX Hardware Handbook

EB-25949-46

VAX Software Handbook Set

EJ-28250-DP

VAX/VMS Networking Manual

AA-Y5120-TE

VAXBI Expander Cabinet Installation Guide

EK-VBIEA-IN

VAXBI Options Handbook

EB-29228-46

Chapter

Introduction
This chapter introduces the VAX 6200 system, its architecture and system

specifications, the location of components in the cabinet, and the fieldreplaceable unit list. Sections include:

System Physical Description

System Functional Description

System Packages

VAX 6200 Front View

VAX 6200 Rear View

Field-Replaceable Units

Introduction

1-1

1.1 System Physical Description
A typical VAX 6200 system has a main cabinet with a TK tape drive,

a console terminal, a disk drive cabinet, an accessories kit, and a
set of documentation. The system may have additional tape or disk

drives and may be a member of a VAXcluster.

Figure 1-1:

Typical VAX 6200 System

R LAY

R AR LTAT
AR

ALTS

'~..,'.',':..,

&Ly

mm
I
u

CONSOLE

TERMINAL

|||

muu

{HARD COPY)

uum

MANUALS

SOFTWARE
MLO-HC-000288

1-2

VAX 6200 Options and Maintenance

Figure 1-1 shows a typical system.

The main cabinet houses a TK tape drive, the XMI card cage (which
contains the processors and memories), two VAXBI card cages, the
control panel switches, status indicators, and restart controls.
The TK tape drive in the main cabinet is used for installing operating
systems, software, and some diagnostics.

The disk drive cabinet has local storage and archiving capability.
The console terminal is used for booting and for system management
operations.

VAX 6200 documentation that ships with the system includes:
—

VAX 6200 Installation Guide

—

VAX 6200 Owner’s Manual

—

VAX 6200 Mini-Reference

See the Preface for a complete list of system documentation and

associated documents.

Introduction

1-3

Table 1-1:

VAX 6200 System Characteristics

Physical

cm (in)
Height

154 (60.5)

Width

78 (30.5)

Depth

76 (30.0)

Weight

318 kg (700 1bs)

Environmental
Heat dissipation (max)

Operating temperature

Operating humidity

Altitude

5440 Btu/hr (5712 K]/hr)
TK not in use

10° to 40°C (50° to 104°F)

TK in use

15° to 32°C (59° to 90°F)

TK not in use

10 to 90% relative humidity

TK in use

20 to 80% relative humidity

Non-operational

0 t0 9.1 km (0 to 30,000 ft)

Operating

0 to 2.4 km (0 to 8000 ft)

Cooling System
Type

PFessurized, with air moving device

Air mover

Dual

backward

curved

ers

Air source

1-4

VAX 6200 Options and Maintenance

Filtered ambient air

blow-

Table 1-1 (Cont.): VAX 6200 System Characteristics
Electrical
1.6 kW

AC power consumption (max)

AC current (max)
Voltage input

60 Hz

8 A (208 V)

50 Hz

4 A(416V), 4.5A (380V)

60 Hz

3-phase 208 VRMS

50 Hz

3-phase 380/416 VRMS

Frequency tolerance

47-63 Hz

Surge current

60 A

Introduction

1-5

1.2 System Functional Description
The VAX 6200 system supports multiprocess
ing with up to four
KA62A processors. The system uses a high-s
peed system bus called
the XMI bus to interconnect its KA62A proces
sors and its MS62A

memory modules.

All I/O devices

connect to the

Optional hardware includes the VAXBI expan

or tape drives.

Figure 1-2:

VAX 6200 System Architecture

UP TO 4 PROCESSORS

UP TO 256 MBYTES

Processors

XMl

Memories

(100 MBYTES/S)

VAXBI

(10 MBYTES/S)

BK50

EBNA

DWMBA/A l

DWMBASB

MB32

—>

DWMBA/A l
DWMBA/B

HB32

B850

l DWMBA ADAPTER (XBI)

IBCA
“

N
N

8 TERMINALS

'_J

’

ETHERNET

1-6

VAXBI bus.

der cabinet and disk

VAX 6200 Options and Maintenance

| RBa_z—,

\
\

VAXcluster

USER

DEVICE

msb-0001-88

The XMT is the VAX 6200 system bus; the VAXBI bus supports the 1/0O

subsystem. The XMI is a 64-bit system bus! that interconnects the central

processors, memory modules, and VAXBI I/O adapters.

The VAXBI and XMI share similar but incompatible connector and module
architecture. Both the VAXBI and XMI buses use the concept of a node. A
node is a single functional unit that consists of one or more modules. A
node may be one or two modules operating as a single functional unit.
The XMI has three types of nodes: processor nodes (KA62A), memory
nodes (MS62A), and the XMI-to-VAXBI I/O adapters (DWMBA).
A processor node, called a KA62A, is a single-board VAX processor.
It contains a central processor unit (CPU) chip with its own cache, a
floating-point processor, a secondary cache, a writable PROM for system
parameters, and a custom gate array for interfacing to the XMI bus.
‘
Processors communicate with main memory over the XMI bus. The system
supports multiprocessing of up to four processors. One processor becomes
the boot processor during power-up, and that boot processor handles all
system communication. The other processors become secondary processors
and receive system information from the primary processor (see Section
3.4).

A memory node is an MS62A. Memory is a global resource equally
accessible by all processors on the XMI. Each MS62A module has 32 Mbytes
of memory, consisting of MOS 1-Mbit dynamic RAMs, ECC logic, and
control logic. The memories are automatically interleaved for maximum
performance, or may be custom set by console command. An optional
battery backup unit protects memory in case of power failure.
An XMlI-to-VAXBI adapter, called a DWMBA, is a 2-board adapter that
maps data between these two buses. The DWMBA/A module is installed
on the XMI bus; it communicates with the DWMBA/B module on the VAXBI
using a 120-pin cable. Every VAXBI on this system must have a DWMBA
adapter. Therefore, systems with two VAXBI channels have two DWMBA/A
modules on the XMI bus, and each VAXBI has a DWMBA/B module in its
card cage. System error messages and self-test results refer to the pair of
DWMBA modules as XBI.
‘
)

The VAXBI, in turn, passes data between the system and the peripheral
devices.

1 The XMI has a 64-nanosecond bus cycle, with a maximum throughput of 100 Mbytes per
second.

“Introduction

1-7

1.3 VAX 6200 Front View
The TK tape drive and control panel are on the front of the system
cabinet, accessible with the doors closed. With the front door open,
field service representatives can access the VAXBI and XMI card
cages, the cooling system, the battery backup unit, if present, and
power regulators.

VAX 6200 System (Front View)

Figure 1-3:

TK TAPE DRIVE

FRONT
CONTROL PANEL

—4H=]

—}—

POWER REGULATORS

—4—

XMiICARDCAGE

VAXBI
CARD CAGES

COOLING
SYSTEM

POWERAND

LOGIC BOX (H7206)

TRANSFORMER

——— BATTERY BACKUP
UNIT (OPTIONAL)

(50 Hz SYSTEMS )
msb-0002-88

1-8

VAX 6200 Options and Maintenance

These components are visible from the inside front of the cabinet (see
Figure 1-3 for their location):
e

TK tape drive

Control panel

Power regulators

Two VAXBI card cages

XMI card cage

Cooling system

Battery backup (if installed)

Transformer (on 50 Hz systems only)

Power and logic box (H7206)

One of the two blowers is visible from the front of the cabinet.

Introduction

1-9

1.4 VAX 6200 Rear View
With the rear door open, field service representatives can access the

power regulators; power sequencer module (XTC); cooling system;

power and logic box; battery backup unit, if present; AC power
controller; terminal, disk, and console connectors; and the 1/O

bulkhead space.

Figure 1-4:

VAX 6200 System (Rear View)

//é

XTC POWER

LIS

REAR

SEQUENCER MODULE

POWER

REGULATORS

VAXBI

XMi

CARD CAGES

CARD CAGE

TERMINAL, DISK
——F—
cooLNG

AND CONSOLE
CONNECTORS

SYSTEM
—J—

POWERAND

LOGIC BOX (H7206)
BATTERY BACKUP

—H

UNIT (OPTIONAL)
—}—

AC POWER

CONTROLLER

(H405)
msb-0003-88

1-10

VAX 6200 Options and Maintenance

These components are visible from the rear of the cabinet (see Figure 1-4):
Five field-replaceable power regulators

Power sequencer module (XTC) located on the back of the TK tape drive
and control panel unit
I/0 bulkhead space

The panel covering the XMI and VAXBI areas is the I/O bulkhead panel
and provides space for additional I/O connections.
Cooling system, with open grid over a blower
VAXBI and XMI adapter bulkhead cables
Terminal, disk, and console connectors

Power and logic box (H7206)

Battery backup unit (optional)
AC power controller (H405)

Introduction

1-11

1.5 Field-Replaceable Units
Table 1-2 lists the major recommended spares and their part
numbers for the VAX 6200. CD indicates whether the part is in

the field service kit.

Table 1-2:

Field-Replaceable Units
Part Number

CD Kit

Description

T1043

VAXBI adapter (DWMBA/B)

T2011

CPU module (KA62A)

T2012

VAXBI adapter (DWMBA/A)

Memory:

T2014-B

32 Mbyte memory (MS62A)

VAXBI Card Cage:

H9400-AA

VAXBI card cage

XMI Card Cage:

70-24373-01

XMI 14-slot card cage

54-18172-01

XMI daughter card

Kernel:

System Control

54-16574-01

Control panel assembly

Assembly:

Power Supply:

Battery Backup:

1-12

54-17243-010r2029176-01

XTC power sequencer

TK50

Tape drive

12-19245-02

TOY clock battery

H7214

5 V regulator

H7215

5 V regulator

H7206

Power and logic box

H405E

60 Hz AC power controller

H405F

50 Hz AC power controller

H7231-N

250 W battery backup option

VAX 6200 Options and Maintenance

Table 1-2 (Cont.):

Miscellaneous:

Field-Replaceable Units
Part Number

CD Kit

Description

12-11255-24

Air filter, front

12-11255-17

Air filter, rear

12-27848-01

Blower assembly

12-24701-06

H7206 fan

17-01844-01

Temperature sensor

12-25024-11

Airflow sensor

16-28393-01

Transformer

Introduction

1-13

Chapter 2

Diagnostics
This chapter discusses the design of the VAX 6200 diagnostics, the self-test,
ROM:-based diagnostic monitor program, VAX diagnostic supervisor tests,
and EEPROM patching. Sections include:
¢

Diagnostic Overview

Self-Test

ROM-Based Diagnostic Monitor Program

RBD Monitor Control Characters

DEPOSIT and EXAMINE Commands
START Command
START Command Qualifiers
RBD Test Printout, Passing
RBD Test Printout, Failing
Sample RBD Session

VAX Diagnostic Supervisor Programs
Running VDS
Sample VDS Session

VDS Diagnostics

Diagnostics

2-1

2.1

Diagnostic Overview

The VAX 6200 system has five levels of diagnostics: three levels are
ROM-based, and two are loadable. These tests include ROM-based
self-tests to test system modules; additional tests that are run at

power-up; ROM-based diagnostics (RBD) invoked from the console
program; and two levels of loadable VAX diagnostic supervisor

(VDS) tests (see Figure 2-1).

Figure 2-1:

Diagnostics Design

Self-test
1

Additional

—

power-up

tests

ROM-based diagnostics (RBDs)

VAX Diagnostic Supervisor, standalone (VDS)
VAX

Diagnostic

Supervisor,

online

(VDS)

msb-0016-88

2-2

VAX 6200 Options and Maintenance

Self-Tests

Modules on the XMI have their own self-test resident in ROM, except for
the DWMBA/A module. At power-up, initialization, booting, or system
reset, each KA62A processor and MS62A memory module runs its own
self-test. The processor self-test completes in 10 seconds, and the memory
test completes within 60 seconds.
Additional Power-Up Tests

Following the modules’ self-tests, two additional programs are run and
reported to self-test results: CPU/Memory tests and DWMBA tests.
The extended CPU/Memory test checks that the processors can access
memory. Memory also has a self-test that tests actual memory locations.
The extended CPU/Memory test is the second test for memory and serves as

a check on the memory’s XMI interface. Results are printed on the ETF line
on self-test (see Chapter 6 of the VAX 6200 Owner’s Manual for an explanation
of self-test results).

The DWMBA modules are tested by the processor, before the boot
processor queries the VAXBI options for the results of their self-tests.
Results from both tests are printed in the XBI lines on the self-test printout
(see Example 2-1).

ROM-Based Diagnostics

From the console prompt, you can enter RBD mode and run any of five
ROM-based diagnostics. These five tests include KA62A self-tests, VAXBI
tests, memory tests, and second-level cache tests. In RBD mode, you have
the capability of running tests with a trace, to indicate which test is failing.
VAX Diagnostic Supervisor (VDS)

From the console prompt, you can boot VDS from the TK tape and
run stand-alone VDS level 3 diagnostics (stand-alone mode). From your
operating system, run VDS and run level 2R diagnostics (online mode).
Level 2 VDS diagnostics may be run either in stand-alone or online mode.
See Table 2-9 for a listing of VDS diagnostics.

Diagnostics

2-3

2.2 Self-Test
The self-test diagnostics reside in ROM on the processors and onboard some other modules. These self-tests check each module
at power-up, when the system is reset, and during booting, or
when the self-tests are invoked from the RBD monitor program.
Self-test results are written to the console terminal, as shown in
Example 2-1.

Example 2-1:

Sample Self-Test Resuits

A
o

3.0

EEPROM

NODE

TYP

BPD

ETF

BPD

XBI D 4+

XBI

STF

ILV

128Mb

2.0/3.0

S5G01234567

>>>

2-4

3
P

ROM

4
P

VAX 6200 Options and Maintenance

The self-tests are invoked and results are written to the console under several
circumstances;

At power-up

At system reset (following power interrupt when the system is in Auto

Start mode, or when the control panel Restart button is hit)
¢

During boot procedure

In console mode, with the INITIALIZE command

The memory parts of the printout can be individually requested, using the

console command SHOW MEMORY. This command prints the ILV line
and the line following it that displays memory interleave configuration, each
memory’s size, and the total working memory of the system.

The tests run during self-test can be individually invoked in RBD mode using
the ROM-based diagnostics monitor program. Here you can examine each
test more closely and determine which test is failing. Table 2-1 describes
the tests run during self-test.

Table 2-1:

Self-Test Components

Test

Description

KA62A

Each processor runs its own self-test resident in its own ROM.

MS62A

Each memory runs its own self-test resident in its sequencer.

DWMBA

The XMI-to-VAXBI adapter is tested by the boot processor.

VAXBI

Each VAXBI on the system is checked, and each node on the VAXBI
runs its own self-test; results are reported.

The self-test printout in Example 2-1 reflects a specific configuration.

A
detailed explanation of self-test results is available by typing HELP SELF at
the console prompt. Self-test is also described in Chapter 6 of the VAX 6200
Owner’s Manual.

Diagnostics

2-5

2.3 ROM-Based Diagnostic Monitor Program
The ROM-Based Diagnostic Monitor program is accessed through
the console program. Type T/R at the console prompt to enter RBD
mode. RBD mode has five commands with qualifiers and a set of
control characters that run the RBD tests.

Table 2-2:

RBD Monitor Commands

Command

Function

D[EPOSIT]

Deposits data at the address specified

E[XAMINE]

Examines data at the address specified

ST[ART] n

Starts diagnostic sequence n, where n is the number of the test listed
in Table 2-3

SU[MMARY]

Prints a summary report of the last test run

QUIIT]

Exits the RBD monitor and returns control to the console program

Table 2-3:

ROM-Based Diagnostics Programs

RBD

Test

Totals

Description

Runs CPU tests

Runs extended CPU/memory tests

Runs DWMBA tests

Program

Default

Sizes and runs extended tests on the entire memory

2-6

Miscellaneous tests of second-level cache

VAX 6200 Options and Maintenance

To enter RBD mode, at the console prompt enter:
>>>

T/R

This is the console command for TEST/RBD.

RBDn>

RBD prompt appears signifying entrance into

]

RBD mode,

where n is the XMI node number of
the processor running the RBD monitor program.

The five RBD commands are explained here and in Section 2.3.2 and
Section 2.3.3. Table 2-2 gives the commands, their abbreviations, and
functions.

Five programs run from the ROM-based diagnostics (RBD) monitor
program. The programs are CPU self-test, CPU/Memory tests, the DWMBA
tests, memory RBD tests, and second-level cache RBD tests. Each of these
programs has several tests, as shown in Table 2-3. The RBDs are designed
for use by DIGITAL field service personnel.

Each RBD has a default number of tests that run when the test is invoked
(see Table 2-3). The CPU and CPU/Memory
tests (RBD 0 and 1) run all

their tests when invoked. The DWMBA tests?iZBD 2) runs 21 of the 26 tests

available; tests 2, 3, 4, 10, and 11 must be specifically invoked by qualifier.
For RBD 3, the Memory tests, 7 of 12 tests run when invoked; tests 2 through
8 are defaults. And for RBD 4, the second-level cache test, all 8 of the tests
must be specifically invoked. For instance, the following command invokes
all the

DWMBA tests available.

START 2/T=1:26

It is useful to use the /TRACE qualifier with the RBD START command.
ITRACE shows each individual test as it is passed. If a test fails, the program
brings back error messages. By default, the RBDs continue testing after an
error is encountered. Adding the /HE qualifier causes the program to Halt
on Error (HE) when the first error is encountered. Testing can be aborted
at any time by using a CTRL/C.

To exit RBD mode, type QUIT at the RBD prompt. Your next prompt is
from console mode.

Diagnostics

2-7

2.3.1

RBD Monitor Control Characters

Several control characters are supported by the RBD monitor
program. These characters manage the program process as shown
in Table 2-4.

Table 2-4:
Character

RBD Monitor Control Characters
Environment

Function

Test running

Stops the execution
cutes cleanup code.

RBD command line

Use for deleting erroneous characters entered on the

RBD

test

command line.

[cTRLO]

Test running

and

exe-

‘

Resumes output to terminal that was suspended with
CTRL/S],

[cTAus]

Test running

Suspends output to the terminal until [CTRUQ]is typed.

At RBD prompt

Disregards previous input.

CTRLYY

Test running

Stops the execution of an RBD test and does not exe-

CTRLZ

At RBD prompt

Exits

cute any cleanup code.

RBD

monitor

sole program;
mand.

2-8

VAX 6200 Options and Maintenance

same

program

and

enters

con-

effect

the

QUIT

com-

As soon as a CTRL/C is entered from the console terminal that began
execution of the RBD test, the diagnostic stops execution, runs cleanup code,
and returns control to the RBD monitor program. If CTRL/C is typed at the
RBD monitor prompt, it has the same effect as CTRL/U.

When you use the DELETE key (or rubout key), characters being deleted are
preceded by a backslash (\ ) and print as they are rubbed out. When the
next valid character is typed, it is preceded by a backslash (| ) to delineate
the deleted characters.

When the RBD monitor program receives a CTRL/U, the program disregards
all previous input typed and issues a carriage return and linefeed
(<CR><LF>) and returns the RBD prompt. If a test is running when
CTRL/U is entered, CTRL/U is ignored.

When a CTRLY/Y is received by the RBD monitor program from the console
terminal that began execution of the RBD test, the diagnostic stops execution
and returns control to the RBD monitor program. No cleanup code is run,
and the unit under test is left in an indeterminate state. A CTRL/Y entered
at the RBD monitor prompt has the same effect as CTRL/U.
When the RBD monitor program receives a CTRL/Z, the program exits and
control is returned to the console program. The next prompt is the console
prompt. CTRL/Z has the same effect as the QUIT command. If CTRL/Z
is entered while an RBD test is running, CTRL/Z has the same effect as
CTRL/C: it halts the test and executes cleanup code.

Diagnostics

2-9

2.3.2 DEPOSIT and EXAMINE Commands

The DEPOSIT command deposits data to the address specified, and
the EXAMINE command displays the data stored at the specified
address. Both commands take the same qualifiers.

Example 2-2:

DEPOSIT and EXAMINE Commands

11
RBD2>

Deposits

the value of

address

27;

node

boot

zero to

processor

RBD2>

E/G

Examines

registers

RO-R11

RBD2>

EXAMINE/B/N:1FF

Examines

the

512

physical

first

bytes

memory

4]
RBD2>

EXAMINE/N:5/W

Examines

word
and

B
RBD2>

DEPOSIT/B/N:1FF

the

Deposits
512

bytes

beginning

Table 2-5:

previously

in the virtual
five

zeros
of

space

words

the

physical

with

referenced

address

first
memory

DEPOSIT and EXAMINE Command Qualifiers

Qualifier

Meaning

Defines data size as a byte.

For the EXAMINE command only; shows a copy of the contents of gen-

eral registers RO through R11 when the diagnostic halted.
/L

Defines data size as a longword.

Defines data size as a word.

2-10

VAX 6200 Options and Maintenance

The command syntax is:
D[EPOSIT]
E[XAMINE]

[/qualifier] <address> <data>
[/qualifier] <address>

The qualifiers must be placed immediately following the command.

The variable <data> is a numeric value to be stored. The value must fit in
the data size to be deposited. In the RBD program, addresses are always
considered to be physical addresses, not register references. You can only
examine the register contents (using E/G in RBD mode); you cannot deposit
to the registers.

The variable <address> is a 1- to 8-digit hexadecimal value or one of the
following;:

4+, the location immediately following the last location you referenced in
an EXAMINE or DEPOSIT command. For physical and virtual memory,
the referenced location is the last location plus the size of the reference
(1 for byte, 2 for word, 4 for longword). For other address spaces, the
address is the last referenced address plus one.

_, the location immediately preceding the last location you referenced in
an EXAMINE or DEPOSIT command. For physical and virtual memory,
the referenced location is the last location minus the size of the reference
(1 for byte, 2 for word, 4 for longword). For other address spaces, the
address is the last referenced address minus one.

*, the last location you referenced in an EXAMINE or DEPOSIT

command.

The DEPOSIT command directs data into the specified address. 1f you do
not specify any address or data size qualifiers, the defaults are based on the
last address or data size specified in a DEPOSIT or EXAMINE command.
After processor initialization, the default address space is physical memory,
the default data size is longword, and the default address is zero.

The address and data must be entered as hexadecimal characters. The data
specified must be able to fit into the current data length: 2 hex digits for
byte length, 4 for word length, and 8 for longword length.

If an EXAMINE command is followed by a carriage return (E<CR>), the
RBD program interprets it as an E+ command.

Diagnostics

2-11

2.3.3 START Command

The

RBD

program.

monitor

START

command

invokes

specific

RBD

It takes an argument indicating the RBD program to be

run, and can take any of 13 qualifiers.

Example 2-3:

START Command

2}
RBDn>

/HE

/IE

/BE

/TR

decimal

node

currently

the

where n

that

RBD3>

Command

RBD monitor prompt,

Runs

T/R

RBDn>

>>>

results

XMI

enter

number

XBI

node

Runs

the
first

the

number
to

1.
the

error

output,

first

error

your

input.
the

DWMBA

Test
console

the

terminal.

halting

encountered,

ringing

the hexa-

processor

testing

CPU/Memory RBD,
error

program;

receiving

self-test,

written

the

RBD monitor

inhibiting

bell

when

the

encountered.

The START command syntax is:
START
n

[<DWMBA/A node

number>]

[/qualifier]

where n is the RBD to be run (see Table 2-3), and for test 2 only
<DWMBA/A node number > is the node number of the DWMBA/A adapter
to be tested.

See Section 2.3.4 for a listing and description of the START command
qualifiers.

2-12

VAX 6200 Options and Maintenance

2.3.4 START Command Qualifiers

The START command is the primary RBD program command. Its
qualifiers act as switches, allowing you to control the output of the
tests—to run portions of a test, to run nondefault tests, and to loop
on tests.

Table 2-6:

START Command Qualifiers

Qualifier

Default

IATE

Disabled

Use only with automatic test equipment

IBE

Disabled

Bell strikes when an error is encountered

Disabled

Destructive test confirmation

/DS

Disabled

Disable status reports

IHE

Disabled

Halt on the test that incurs an error

/1E

Disabled

Inhibit all error output

/1S

Disabled

Inhibit summary reports

ILE

Disabled

Loop on the test that incurs an error

[P=n

Enabled

Make n passes of the test or tests indicated

IQA

Disabled

Function

Runs the diagnostic in quality assurance mode; reserved for diagnostic development

1QV

Disabled

Quick verification test

IT=n[:m]

Enabled

IT=n runs test n; /T=n:m runs a range of tests from n
through m

ITR

Disabled

Print a trace of test numbers, as they run

See Example 2-3 for examples and a description of the START command
syntax.

Use the /ATE qualifier only with automatic test equipment that can monitor
points on the board to determine test failure or pass. /ATE causes all errors
to be ignored so that the code flow is identical whether or not an error
occurs. With this switch enabled, the board appears to pass all tests.

Diagnostics

2-13

With /BE, the RBD monitor program rings a bell on the console terminal
whenever an error is encountered. This is useful when error printout is
inhibited and a loop is being performed on an intermittent error (/LE).

/IC enables execution of destructive tests. See Example 2-5 for information
on the destructive tests.

/DS disables printout of the diagnostics test results. The summary report is
still run, unless it is specifically disabled.
[HE halts on error and stops execution of tests as soon as the first error is
encountered. The test number is printed out, and a summary line indicating
failure of the RBD is printed to the console terminal. Also the RBD monitor
prompt is returned. Continue on error is the default condition, so if you
want a halt on error, you must specifically invoke it in your command line.
/IE inhibits all error output, suppressing printing of RBD results.
This
qualifier is used primarily for module repair, in conjunction with the /LE
qualifier. Errors are counted even when the printing is disabled.

IS suppresses printout of RBD results after the end of the last pass
performed by the RBD.
ILE loops on the test where the first error is detected. Even if the error is
intermittent, looping continues on the test indicated. To terminate /LE, enter

CTRL/C, CTRL/Z, or CTRL/Y. After entering one of these control characters,
a summary report prints out and the RBD monitor prompt returns.

[P =n runs n number of passes of the RBD test invoked, where 1 is a decimal
number. If n is 0, all selected tests run for an infinite number of passes.
If the /P qualifier is not used, the program defaults to one pass of the test
invoked. When used with the /T =n:m qualifier, you run a range of tests. To
terminate /P=n, enter CTRL/C, CTRL/Z, or CTRL/Y. After entering one of
these control characters, a summary reports prints out and the RBD monitor
prompt returns.

2-14

VAX 6200 Options and Maintenance

IQA is the quality assurance qualifier that forces all branch macros in the
diagnostic to fail, in order to verify all of the error paths.
IQV executes the diagnostic in quick verify mode.
affect diagnostics that are already short.

This switch does not

IT =n[:m] selects individual tests (/T =n) or a range of tests (/T =n:m) where
n and m are decimal numbers. For example, to run tests T0005 through
T0008, use /T=>5:8. If no /T qualifier is used, the diagnostic runs all its tests.
ITR prints each test number as it is completed. This qualifier allows you to
trace the progress of the diagnostic as it runs. Without the /TR qualifier, just
the summary line is printed.
A parameter field can be appended to the START command string to
control aspects of the diagnostic that are not covered by the switches.
The parameter must be appended after any switches specified, separated
from the switches by a space. The format of the parameter field is 4 hex
characters. The use of a parameter field is implementation specific.

Diagnostics

2-15

2.3.5 RBD Test Printout, Passing

The RBD printout results are different when the RBD tests are
passed and when they are failed. Example 2-4 shows a passing
printout, and Example 2-5 is a sample failure printout.

Example 2-4:

RBD Test Printout, Passing

S>>

Console program prompt

>>> T/R

Command to

RBD3>

RBD monitor

decimal

/TRACE

RBD3> START

enter

RBD monitor

prompt,

node

number

where

3 is

is currently receiving

Runs

the

XMI

XBI

node

self-test,
number

the

hexa-

the processor

that

program

your

input.

testing the DWMBA

Test

results written to the console terminal:

-e
we

TOO005

TO006

TO0O0O7

TO0008

TO009

TOO12

TOO1l3

TOOl4

TOO1S

TOO01l6

TO0017

TOO18

TO019

TO0020

TO0021

TO0022

TO023

TO0024

TO0025 B

p @

TO001

(rev.code) B

XBI_SLF

8001 B

000000000 00000000 00000000 00000000 00000000 00000000 00000000 B

RBD3>
RBD3>
>>>

2-16

RBD

QUIT

Exit

prompt

returns;

test

RBD program.

Console prompt

VAX 6200 Options and Maintenance

reappears.

ran

successfully.

The callouts in Example 2-4 are explained below.
This entry designates which test is being run. Here it is the XBI_SLF,
the self-test for the DWMBA.
XCPST indicates RBD 0, the CPU tests
CPUMEM indicates RBD 1, the CPU/Memory tests
XBI_SLF indicates RBD 2, the DWMBA tests
XMARBD indicates RBD 3, the Memory tests
SLCRBD indicates RBD 4, the Second-Level Cache tests
This field lists the revision number of the RBD program.

These T000n fields appear only with the /[TRACE qualifier; each entry
corresponds to a test being run and prints out as the test is running. In
a passing RBD, the final T000n number corresponds to the last test run.
Note that T0002 through T0004 and T0010 and T0011 are not executed.
These tests are not part of the default selection and must be individually
invoked by qualifier. For a list of the tests for each RBD, and the
definition of the tests, see each module’s chapterin this book.
This field indicates whether the RBD passed or failed; P for passed, F
for failed.

This fieldis the XMI node number of the boot processor executing the
RBD. It will match the numberin your RBD prompt, which also indicates
the node number of your boot processor.

This fieldis the device type number of the boot processor eXecuting the
RBD; this device number also appears in console mode when you issue
a SHOW CONFIGURATION command.

This field displays the total number of passes executed by the RBD.
The default number of passes is 1. If you use the START qualifier of
IP =5, for example, then this field will show 5, indicating 5 passes were
completed.

This line contains the sumfnary of the RBD failures. In a successful RBD

run, the line will contain all zeros as shown here. See Example 2-5 for
an explanation of failure codes written to this line.

Diagnostics

2-17

2.3.6 RBD Test Printout, Failing

The RBD printout results are different when the RBD is passed and
when it is failed. Example 2-5 is a sample failure printout, and
Example 2-4 shows a passing printout.

Example 2-5:

RBD Test Printout, Failing
Console

program

prompt

>>>

T/R

Command to

enter

RBD monitor program

RBD monitor

decimal

node number

that

currently

prompt,

where

the

hexa-

the processor

receiving

your

input.

Execute RBD 0
and

(CPU RBD)

TO001

TO002

TO003

TO0004

TO005

TO006

TO007

TOO08

TO0009

TOO10

TOO11

TO012

TOO13

TO0014

TO015

TO01l6

TOO17

TOO1l8

TO001l9

TO0020

TO021

TO0022 ©

(rev.code)

T0023

TO0024

TO0025

TO0026

F
2
8001 @
1
HE @ XBE_ERR
00
T022 B
000000418 0004A0418K8 00000000883 218800048

8001

XCPST

trace results.

/TRACE

RBD2> START O

RBD2>

>>>

TO033

T0034

TO0027

TO0028

00000000

00000001

00000000

RBD2>

RBD prompt

RBD2> QUIT

Exit

>>>

Console

2-18

200GF12308

TO0029

TOO30

000000000

returns;

VAX 6200 Options and Maintenance

TO032

00000000

test completed.

RBD program.
prompt

0100

TO031

reappears.

The callouts in Example 2-5 are explained below. (See also Example 2-4
for explanation of other fields of the printout.)

This TOOnn number is the number of the failing test and is followed by
a failure report. In this example, test 22 failed.

F indicates failure of the previous test listed, test 22.

This field is the XMI node number of the boot processor whose EEPROM

is executing the RBD. It will match the number in your RBD prompt,
which also indicates the node number of your boot processor.

This field is the device number of the boot processor whose EEPROM
is executing the RBD.

This field displays the total number of passes executed by the RBD. The
default number of passes is 1.

The class of error is displayed here. HE indicates that the error was a

This field gives an abbreviated name of the test that fails. Here, XBE_
ERR stands for test 22 of RBD 2.

This field lists the number of the test that failed; test 22 failed here.

The expected data is listed here. 00000041 is the data test 22 expected.

This is the address in memory where the referenced error is found.

This field shows any unexpected interrupt vectors.

This is the address of the failing PC at the time of error.

The received data is listed here. 0004A041 is the data test 22 received.

fiv-"—*mfilfl

hard error. SO shows the error was a soft error.

The error number for the test is given here. Test 22 failed at its error

—

number 01.

These T0Onn fields appear only with the /ITRACE qualifier; each entry
corresponds to a test being run. The entry prints out as the test is
running. This final TOOnn number corresponds to the number of tests
run.

This entire line is the summary line, and a repeat of the failure summary

given 5 lines before. It lists the pass/fail code (P or F), the node number
and device number of the boot processor executing the RBD, and the
number of passes of the RBD.

Diagnostics

2-19

2.3.7 Sample RBD Session
Example 2-6 shows a sample RBD session.

Example 2-6:
A>>

Sample RBD Session

T/R

RBD1>

B RBD1> STO/TRACE

T0O001

TO002

TO003

TO0004

TOOO5

TO006

TO007

TO008

T0011

TO0012

TO013

TO0014

TO015

T0016

TO0017

TO018 ~'TOO19

T0020

0.10

T0021

TO022

TO0023

T0024

TO0025

T0026

TO0027

TO0028

TO030

—e

: XCPST

TO031

TO0032

TO0033

TO0034

;

8001

;00000000

00000000

TO009
TO0029

TO010

000000000 00000000 00000000

CPUMEM

0.06

H TO001 TO002

TOO03

T0004 TO0O05

TO006

TO007

TO008

TO009

TO010

;. TO0O11

TOO12

TOO13

TO001l4

TO016

TO0017

TO018

TOO019

TO020

;

8001

;00000000

00000000

TOO15

000000000

00000000

B RrRBD1> STZ 5
; XBI_ SLF

3.3

;

8001

NO_UNIT:

8001

100000000

00000000

8 RBD1>

3.3

T0002

;

TO000

00000000

TO003

TO004

[
TO002

'T0004

TOO03

8001

;00000000

00000000

2-20

000000000 00000000 00000000

ST2/TR/T=2:4/P=3 E

; XBI_SLF
;

1
-

TO00Z T0003

000000000

VAX 6200 Options and Maintenance

00000000

TO004
00000000

Fnter RBD mode from console mode. RBD prompt appears, and
indicates you are operating from the boot processor at node 1.
Run RBD 0 and trace the tests.

The CPU test runs all 34 tests

successfully.

Run RBD 1, trace it and halt on the first error found.

All of the

CPU/memory RBD tests run and pass.

Run RBD 2, testing the DWMBA, attached to the XMI bus by the
DWMBA/A module at node 5. The value NO_UNIT on the third line of
output indicates that the node value of node 5 is not correct; no DWMBA
was found at this node. Although the summary line indicates the test

passed, the test did was not run since the module could not be located.

Run RBD 2, testing the DWMBA attached to the XMI bus by the
DWMBA/A module at node E; trace the tests as they run, and run test
2 through 4 of RBD 2; make 3 passes over these selected tests.

Note that the T00nn line lists each of the three tests three times, since

the /P=3 called for 3 passes of the tests. And the final parameter in
the summary line (line 3 of this output) is a 3, indicating 3 passes were
completed.

Diagnostics

2-21

Example 2-7:

Sample RBD Session, continued

B rRBD1> ST3/TR/T=10
:

XMARBD

TOO10

2.60

RBD1> ST3/TR/T=10

® rBD1> ST3/TR/T=10/C
s XMARBD

;

2.60

TOO10

This

test will

not

out

any status messages.

RBD1>

8 rRBD1> QUIT
>>>

2-22

VAX 6200 Options and Maintenance

Run RBD 3, trace it, and run only test 10 of this RBD. This test is one of
the memory tests that is not part of the default suite of tests. This test
writes data to memory locations and therefore corrupts memory. You
must add a /C qualifier to the START command, to indicate that you do
indeed intend to run this destructive test.
The /C qualifier was not given in this example. The RBD program
attempts to run the RBD. It indicates it is accessing a memory RBD test
(XMARBD) version 2.60, and prints the name of the test being called.
When the RBD program recognizes the absence of the /C qualifier
required for running T0010, it reprints the command line you entered
and pauses at the end of this command.
You cannot add /C to the command line since the machine echoes it.
The prompt appears as soon as you begin input on the keyboard. You
must enter the command again.
Run RBD 3, trace the tests as they run, run only test 10, and /C allows
the test to run. The system responds with the line indicating that no
status messages will be printed. This test runs for approximately 20
minutes.

Exit from RBD mode. Enter console mode.

Diagnostics

2-23

2.4 VAX Diagnostic Supervisor Programs
The VAX diagnostic supervisor (VDS) is a monitor that controls
operation of a diagnostic program. You can use VDS in one of two
modes: stand-alone mode (exclusive use of the system) or online
mode (under VMS).

Table 2-7:

VAX Diagnostic Program Levels

Level

Type of Test

System exercisers

Run-Time Environment
Runs under the operating system without VDS

Function tests of peripheral devices

2
3

Runs under the operating system with

Exercisers and function tests of

Runs under VDS in online mode and

peripheral devices and processors

stand-alone mode

Function tests and logic tests of

Runs under VDS in stand-alone mode

peripheral devices and processors

Table 2-8:

VDS Documentation

Document

Order Number

VAX Diagnostic Supervisor User’s Guide

EK-VXDSU-UG

VAX Diagnostic Software Handbook

AA-F152A-TE

VAX Diagnostic Design Guide

EK-1VAXD-TI

VAX Hardware Handbook

EB-25949-46

2-24

VAX 6200 Options and Maintenance

The VAX diagnostic supervisor (VIS) can be run in interactive mode. You
type commands in response to the VDS program prompt:
DS>

VDS lets you load diagnostic programs into system memory, select devices
to be tested, and run the programs. The VDS command language also lets
you control the execution of diagnostic programs; you can specify which
tests or sections of a program should run, and how many passes it should
run. You can also show the current state of parameters that affect the
operation of diagnostic programs. The programs report their results through
VDS to the terminal.
VDS contains three types of diagnostic programs:
¢

Logic tests

Test a specific section of a device’s logic circuitry. Logic tests provide the
greatest degree of detail in determining the location of faulty hardware.
¢

Function tests

Test the functions of the device. For example, a function test for a disk
drive would test the drive’s reading and writing capabilities. Function
tests can detect the location of faulty hardware, although the results may
be less exact than those of a logic test.
¢

Exercisers
Test entire systems or subsystems and verify that a system can function
properly over a period of time. Exercisers can detect both hardware
faults resulting from the simultaneous use of a system’s numerous

devices and intermittent faults occurring only once or twice over a long
period of time.

Table 2-9 lists the VDS programs available for the VAX 6200 system.
Each program has a HELP file available.
diagnostic, at the VDS prompt, type:
DS>

HELP

[VDS

To access the help files

for any

diagnostic program name]

Diagnostics

2-25

2.4.1 Running VDS
You can use VDS in one of two modes: stand-alone mode (exclusive
use of the system) or online mode (under VMS).

Example 2-8:
>>>

BOOT/R5:10

Running Stand-Alone VDS
CSAl

Enter

BOOT

TK tape

the boot

VDS

(self-test

results

command

drive

flag

designating

input

the

device;

indicating

/R5:10

the

program.

print)

system software.
VAX

DIAGNOSTIC

SOFTWARE

PROPERTY OF
DIGITAL

EQUIPMENT

***CONFIDENTIAL

AND

Use Authorized Only Pursuant to
Copyright,

Digital

DIAGNOSTIC

SUPERVISOR.

RUN

ELSAA

[self-test
DS>

DS>

EXIT

2-26

1988.

System boots

Run VDS
Enter

Console

Rights

23-APR-1989

License

All

VDS

level

CTRL/P

prompt

and

Reserved.

12:01:45

displays

banner.

programs.

exit

VDS

returns.

Running Online VDS

Right-to-Use

ZZ-ELSAA-11.XX-NNN

>>>

Example 2-9:

a Valid

Equipment Corporation,

DS>

CORPORATION

PROPRIETARY***

results

and VDS

the VDS

banner

the operating

system prompt,

program.

print,

VDS

prompt

Run VDS

Enter

Operating

level

EXIT

VAX 6200 Options and Maintenance

example

above]

appears.

2R or

exit

VDS

programs.

system prompt

returns.

run

Table 2-7 describes the levels of VDS programs. Check Table 2-9 for the
programs you wish to run, and determine if you will run VDS in stand-alone
or online mode.
A VAX system that runs ULTRIX can use VDS only in stand-alone mode (not
under
S). To run VDS in stand-alone mode, insert a TK tape containing

the VAX 6200 VDS program into the TK tape drive on the system.! At the
console prompt, boot
>>> BOOT

VDS from the TK tape using the /R5:10 qualifier:

/R5:10 CSAl

where CSAL1 is the device name for the TK tape drive, and /R5:10 is the
boot flag designating the VDS program. (See Example 2-8). To run VDS in
online mode under VMS, you use the RUN command under your operating
system (see Example 2-9).
In both stand-alone and online mode, VDS functions the same way.
Typically a program running in online mode provides less detailed results
than one running in stand-alone mode. For more information on VDS, see
the documents listed in Table 2-8.

1 The VAX 6200 Console TK5() tape (part number AQ-F]77*-ME) ships with every system and

contains VDS and the autosizer. DIGITAL field service representatives and licensed self-

maintenance customers may use the VAX 6200 CMPLT DIAG SET TK50 tape (part number
AQ-FKO0Z+*-DE) that contains VDS, the autosizer, and a complete set of diagnostics. The
nonbootable VAX6200 CMPLT DIAG SET MT tape (part number BB-FK03*-DE) is also
available to field service and self-maintenance customers for use on a TU81 tape drive.

Diagnostics

2-27

2.4.2 Sample VDS Session

When you run the VDS programs, run the system autosizer program

EVSBA first. The program, which takes several minutes to execute,
will save you time as you proceed with other tests.

Example 2-10:

Sample VDS Session

>>>

BOOT

/R5:10/CSAl

[self-test

results

Begin

Command

from

console

the

mode.

load VDS

system TK

(/R5:10)
tape

drive

stand-alone

(CSAl).

print]

system software.
VAX

DIAGNOSTIC

SOFTWARE

PROPERTY
DIGITAL

EQUIPMENT

***CONFIDENTIAL AND

CORPORATION
PROPRIETARY***

Use Authorized Only Pursuant

to a Valid

Digital

Corporation,

DIAGNOSTIC

SUPERVISOR.

Equipment

Right-to-Use License
1988.

ZZ-ELSAA-11.XX-NNN

All

Rights

23-APR-1989

Reserved.

09:38:42

DS>
DS>
..

RUN

EVSBA

Program:

at
.+

EVSBA

Run

AUTOSIZER

the

autosizer

level

Rev

program.
Y6.0,

revision

6.0,

09:39:24.76.

End of

time
DS>

run,

SHOW

errors

23-APR-1989

detected,

pass

09:40:31.16

DEV

_DWMBAO

DWMBA

Number

(HEX)=00000001(X)

_DUA

KDB50

_XBIO

7C010000

_bJdal

RA60

_bua

7C600000

HUB

61880000

XMI

7COO0E000

Node

count

HUB

61F00000

XMI
BI

node
Node

(1,2,3,4,B,C,D,E)

Number

=0000000E (X)

(HEX)=00000008(X)

_KAO

KA62A

_BLAO

KLESI-B _XBIO

_MUAO

TUS81

_BLAO

7C5FF940

CSR=774500(0)

_TXA

DMB32

_XBIO

7C004000

Node

Number

(HEX)=00000002(X)

Node

Number

(HEX)=00000004(X)

Node

Number

(HEX)=0000000
(X)
6

_ETA

DEBNA

_XBIO

7C008000

_ETA0O

LANCE

_ETA

7C500000

_MUA

TBK50

_XBIO

7C00C000

_MUAO

TK50

_ETB

7C580000

DS>

SELECT

RUN

Node
Node

ID=00000001(X)
Number

ELKMP - VAX

Present=Yes

VECTOR=000260(0)

6200

MP Exerciser,

_KAO

revision
o

Example 2-10 Cont’d. on next page

2-28

FPU

(HEX)=00000007(X)

BR=5.

ALL

ELKMP

Program:

Testing:

tests

VAX 6200 Options and Maintenance

0,3,

7 tests,
'

Example 2-10 (Cont.):

Sample VDS Session

Interlock Test

Test

Memory

Test

Interprocessor

Test

Write Error

Test
Test

4:
5:

Cache Invalidate Test
XMI Bus Arbitration Test

Interrupt- Test

Interrupt Test

Test 6: XMI Bus Arbitration Collision Test
Test 7: Multiprocessor Exerciser
Fhxkkkkk ELKMP - VAX 6200 MP Exerciserj— 0.3 *kkkdhk
Pass

test

subtest 0,

error 3,

23-APR-1989

Hard error while testing Unknown device:
*kkkxk**k
Halt

FEnd of
on

error

Hard error number
at

00:00:00.00

WE IVINTR count failure

3 **kixkkkx

00001FGB(X)

DS>

The off-line autosizer program EVSBA identifies hardware on your system
and builds a database for the VAX diagnostic supervisor. The autosizer
eliminates the need for you to type in the name and characteristics of the
hardware you intend to test under VDS with level 3 diagnostic programs.

You can also use the autosizer to print a list of system hardware by running

the program EVSBA under VDS and typing the VDS command SHOW
DEVICE/BRIEF. The command lists system devices, similar to the SHOW
CONFIGURATION command
in console mode.

Diagnostics

2-29

2.4.3 VDS Diagnostics

Table 2-9 lists the VAX diagnostic supervisor tests available for the
VAX 6200 system.

Table 2-9:

VAX Diagnostic Supervisor Programs

Diagnostic

Level

ELSAA!

Diagnostic Title

VAX 6200 Diagnostic Supervisor

ELKAX!

Manual Tests

ELKMP!

Multiprocessor Exerciser

EVSBA

VAX Stand-Alone Autosizer

VAX CPU Cluster Exerciser
EVKAQ

VAX Basic Instructions Exerciser, Part 1

EVKAR

VAX Basic Instructions Exerciser, Part 2

EVKAS

VAX Floating-Point Instruction Exerciser, Part 1

EVKAT

VAX Floating-Point Instruction Exerciser, Part 2

EVKAU

VAX Privileged Architecture Instruction Test, Part 1

EVKAV

VAX Privileged Architecture Instruction Test, Part 2

KDB50 (BDA) Macrodiagnostics
EVRLF

UDAS50/KDB50 Basic Subsystem Diagnostics

EVRLG

UDAS50/KDB50 Disk Drive Exerciser

EVRLB

VAX RAxx Formatter

EVRLK

VAX Bad Block Replace Utility

EVRLL

Disk Drive Internal Error Log Utility

EVRAE

VAX Generic MSCP Disk Exerciser

VDS tests starting with EL indicate tests created specifically for the VAX 6200 system and are not transportable across all VAX systems.

2-30

VAX 6200 Options and Maintenance

Table 2-9 (Cont.):

VAX Diagnostic Supervisor Programs

Diagnostic

Diagnostic Title

Level

DEBNA Macrodiagnostics
EVDYD

DEBNA Online Functional Diagnostics

EVDWC

VAX N1 Exerciser

TBKS50 Macrodiagnostics
EVMDA

TK Data Reliability Exerciser

CIBCA Macrodiagnostics
EVGCA

T1015 Repair Level Diagnostic, Part 1

EVGCB

T1015 Repair Level Diagnostic, Part 2

EVGCC

T1015 Repair Level Diagnostic, Part 3

EVGCD

T1015 Repair Level Diagnostic, Part 4

EVGCE

T1025 Repair Level Diagnostic

EVGAA

CIBCA Functional Diagnostic, Part 1

EVGAB

CIBCA Functional Diagnostic, Part 2

EVGDA

CIBCA EEPROM Program and Update Utility

EVXClI

VAX CI Exerciser

KLESI-B/TU81 Macrodiagnostics
EVMBA

VAX TUS81 Data Reliability

EVMBB

VAX Front-End/Host Functional Diagnostics
DHB32 Macrodiagnostics

EVDAR

DHB32 Diagnostics

EVDAS

DHB32 Macrodiagnostics
DMB32 Macrodiagnostics

EVAAA

VAX Line Printer Diagnostic

EVDA]

DMB32 Online Asynchronous Port Test

Diagnostics

2-31

Table 2-9 (Cont.):

VAX Diagnostic Supervisor Programs

Diagnostic

Diagnostic Title

Level

DMB32 Macrodiagnostics
EVDAK

DMB32 Stand-Alone Functional Verification

EVDAL

DMB32 Online Synchronous Port Test

EVDAN

DMB32 Online Data Communications Link
DRB32 Macrodiagnostics

EVDRH

DRB32-M, -E Functional Diagnostic

EVDRI

DRB32-W Functional Diagnostic

EVDR]

DRB32-C Functional Diagnostic

UNIBUS Diagnostics
EVCBB

VAX DWBUA VAXBI to UNIBUS

EVDRB

VAX DR11W Online Diagnostics

EVDRE

VAX DR11W Repair Level Diagnostics

EVDUP

DUP11 Repair Level, Part 1

EVDUQ

DUP11 Repair Level, Part 2

EVDCA

VAX Synchronous Link Diagnostics

EVAAA

VAX Line Printer Diagnostic (LP11)

2-32

VAX 6200 Options and Maintenance

Chapter

KAG2A Processor
This chapter contains the following sections:

Physical Description and Specifications
KA62A Configuration Rules
Functional Description
Boot Processor

Power-Up Sequence

KAG62A Self-Test Results: Console Display
KAG62A Self-Test Results: Module LEDs
ROM-Based Diagnostics

KA62A Self-Test RBD
CPU/Memory Test RBD

Second-Level Cache RBD
VDS Diagnostics

Machine Checks

Console Commands
How to Replace the Only Processor

How to Replace the Boot Processor

How to Add a New Processor or Replace a Secondary Processor

PATCH EEPROM Command

PATCH EEPROM Command Error Messages

KA62A Registers

KAG2A Processor

3-1

3.1

KA62A Physical Description and
Specifications
The KA62A is a single-module VAX processor based on a single
CPU chip and a floating-point accelerator chip.
The module
designation is T2011. VAX 6200 systems include multiple KA62A

processors, which use the 100 Mbyte/second XMI system bus to

communicate with memory. For 1/0, an adapter connects the XMI
to the VAXBI bus. Features of the module are shown in Figure 3-1.

Figure 3-1:

KAG62A Module

EEPROM a

SECOND-LEVEL
‘CAC HE “A”

CMOS

/-ROMS

‘-GATE ARRAY /—XMI CORNER

e
1]
.
l=—¢
]

I
1
e
1

]

RED
ERROR—\|
LEDS

]

\g
RED BOOT
PROCESSOR—{ "t
YELLOW

1|
L

ziIF

T CONNECTOR

SEGMENTS

SELF-TEST

TOY

CLOCK /|

T—

]

[

—— 00
SECOND-LEVEL
TAG STORE
—

CACHE “B”

AND CHIPS

=)
\-CVAX \—CLOCK \— FLOATING-POINT
CHIP

CHIP

ACCELERATOR

SYSTEM
SUPPORT
CHIP
msb-0049-88

3-2

VAX 6200 Options and Maintenance

Table 3-1:

KAG62A Specifications

Parameter

Description

Module Number:

T2011

Dimensions:

23.3cm (9.2")

Hx 0.6 cm (0.25") W x 28.0 cm (11.0") D

Temperature:

Storage Range

-40°C to 66°C (-40°F to 151°F)

Operating Range

5°C to 50°C (41°F to 122°F)

Relative Humidity:
Storage

10 to 95% noncondensing

Operating

10 to 95% noncondensing

Altitude:
Storage

Up to 4.8 km (16,000 ft)

Operating

Up to 2.4 km (8000 ft)

Current:

8A at +5V
0.20A at +5VBB

Power:

41W

Cables:

None

Diagnostics:

ROM-based diagnostics (0, 1, and 4)
VDS diagnostics, see Section 3.12.

KAG2A Processor

3-3

3.2 KA62A Configuration Rules
There are no explicit rules for placement of KA62A modules; they
will operate in any slot.
Processors usually go on the right,

beginning with slot 1.

Figure 3-2:

Typical KA62A Configuration

XM!I CARD CAGE

%fiz« 20
EDCBAY987

6543

()

PROCESSOR SLOTS

msb-0054-88

3-4

VAX 6200 Options and Maintenance

By convention, processors are placed in the right XMI slots, beginning with
slot 1. Memories are usually placed in the middle slots, and VAXBI adapters
occupy the slots at the left side of the card cage.

A processor module should be replaced if it consistently fails self-test, or if
it causes the operating system to crash. However, you can leave the module
in the system temporarily if you prevent VMS from using that processor, as
follows. Enter console mode. Use the command SET CPU/NOENABLE to
remove the processor from the software configuration. Reboot the operating
system.

KAG62A Processor

3-5

3.3 KA62A Functional Description
The KA62A processor has four functional sections (see Figure 3-3):
the CPU section, the second-level cache, the XMI interface, and the
console and diagnostics sections.

Figure 3-3:

KAG62A Block Diagram

CVAX
WITH
1KB

2ND
LEVEL

CFPA

CACHE

256 KB

CLOCK
LAT/BUF

)

CVAX

CDAL

—

DUP

XMI INTERFACE

TAG

ADRs | A<31:0>

GATE ARRAY

STORE

ssc

xcl

—

L
MUX

To/from
System Console

C Tt ".E

]

, | xcLock

XLATCH x7

.E
X

\
b

3-6

EEPROM

—

VAX 6200 Options and Maintenance

msb-0050-88

The CPU section includes:

The CVAX processor chip, which supports the MicroVAX subset of
the VAX instruction set and data types.
It has full VAX memory
management including demand paging and 4 Gbytes of virtual memory.
The CPU chip includes the first-level cache, for I-stream (instruction)
storage only. First-level cache is 1 Kbyte, organized with 128 tags. Cache
is write-through, two-way associative, and is filled eight bytes at a time.
A floating-point accelerator with the MicroVAX subset of the VAX
floating-point instruction set. Data types supported by the hardware
are D_floating, F_floating, and G_floating.
The clock chip includes a VAX standard time-of-year (TOY) clock with
access to battery backup, an interval timer with 10 ms interrupts, and
two programmable timers.

The second-level cache is for both I-stream and D-stream (data) storage.
Second-level cache is 256 Kbytes, organized with 4096 tags. Cache is writethrough and direct-mapped. If a processor read misses an entry in the
cache, or if the entry is invalid, the XMI gate array reads the data from main
memory. Cache is filled 32 bytes at a time; the first longword read satisfies
the processor’s read request.
The XMI interface includes:

An octaword write buffer that decreases bus and memory controller
bandwidth needs by packing writes into larger, more efficient blocks
prior to sending them to main memory.

Hexword cache fill logic that loads the second-level cache with eight
longwords of data on each cache miss.
XMI write monitoring logic that uses a duplicate tag store to detect
when another XMI node writes a memory location that is cached on
this processor. Then the gate array invalidates the corresponding entry
in the second-level cache.

Full set of error recovery and logging capabilities.

KAG62A Processor

3-7

Example 3-1:

ROM and EEPROM Version Numbers

+
.

+
E

.
.
.

STF

BPD

ETF

BPD

XBI

ROM =

3.0

EEPROM =

2.0/3.1

3-8

VAX 6200 Options and Maintenance

NODE

4
P

= $G01234567

TYP

ILV

128Mb

The console and diagnostics sections include:

A console read-only memory (ROM), which contains the code for
initialization, executing console commands, and bootstrapping the
system. The last line of the self-test display shows the ROM version.
In this example, the callout Bindicates that the console ROM is version

A diagnostic ROM, which contains the power-up self-test and extended
~ diagnostics. The diagnostic ROM has the same version number as the
console ROM &.

An electrically-erasable, programmable ROM (EEPROM), which
contains system parameters and boot code.
You can modify the
parameters with the console SET commands. Patching console and
diagnostic code in the ROMs is accomplished by reading the patches
into a special area of the EEPROM. The console PATCH EEPROM
command is described in Section 3.18.

The last line of the self-test display shows two EEPROM version
numbers.
The first number 8 indicates the format version of the

EEPROM. This version is changed only when the internal structure of
'
the EEPROM is modified.
The second number B is the revision of ROM patches that have been

applied to the EEPROM. The major number in this revision (before the
decimal point) corresponds to the major number of the ROM revision 8.
The minor number indicates the actual patch revision, In this example,
the EEPROM has been patched once for console ROM 3.0.
e

A system support chip (SSC) contains circuits for writing the EEPROM,
controlling the console, and timer support. On the module, the red LED
next to the yellow LED is controlled by the SSC. When the power-up
tests have completed successfully, the SSC on the boot processor turns
off this LED.

KAG2A Processor

3-9

3.4 Boot Processor
The VAX 6200 system is designed so that all KA62A processors
share system resources equally. Because only one processor can

boot the system or use the console at any given time, this processor
is designated the primary or boot processor. The others are called
secondary processors. The boot processor is selected during the

power-up sequence and can change the next time the system powers
on.

Figure 3-4:

Selection of Boot Processor

CPU with
lowest ID

Eligible

Passed both

Cplfw";t'hlge’“

power-up-

tests

Boot processor
msb-0051-88

3-10

VAX 6200 Options and Maintenance

Using boot code stored in its EEPROM, the boot processor reads the boot
block from a specified device. Booting may be triggered by a command
issued to the boot processor from the console, or by a system reset with the
bottom key switch in the Auto Start position.

The boot processor also communicates with the system console, using
the common console lines on the backplane. When you change system
parameters in the EEPROM using SET commands, the boot processor
automatically copies the new values to the EEPROMs on the secondary
processors. If you swap in a new KA62A module, it should be configured as
a secondary processor. Then you can use the UPDATE command to copy
the boot processor’s entire EEPROM to the new secondary. See the VAX
6200 Owner’s Manual for a description of the UPDATE command.

Usually the processor with the lowest XMI node number (which is also the
lowest slot number) is selected as the boot processor. However, if this
processor does not pass all its power-up tests, the next higher-numbered
processor is selected. This is one way the boot processor can change.
The user also has control over boot processor selection with the SET CPU
command. This command may declare a processor ineligible for selection.
SET CPU can also select a boot processor explicitly.

You can see the boot processor selection three ways:

In the self-test display, the boot processor is indicated by a B on the

In console mode, the command SHOW CPU displays the boot processor

second line labeled BPD.
as "Current primary.”

In program mode, the bottom red LED (next to the larger yellow LED)

is off on the boot processor module. It is lit on secondary processors.

KAG2A Processor

3-11

3.5 Power-Up Sequence

Figure 3-5 shows the power-up sequence for KA62A processors. All

processors execute two phases of self-test, and a boot processor is

selected. The boot processor tests the VAXBI adapters and prints
the self-test display.

Figure 3-5: KA62A Power-Up Sequence, Part1 of 2
Power-up
or system reset (cold)

d
‘

GCPU 1

4. CPU2

Self-Test

Sejf—Test

Determine

CPU n

Self-Test

Wait for expected | - boot processor
Wait

. Print Self-Test Results

CPU 1
CPU/Mem Test

CPU2
CPU/Mem Test

Determine

Wait for XMl BAD to deassert

Processor

Wait for expected

Boot

*
8

Wait for XM1 BAD 1o deassert : | or self-test to time out

Pr:ocassor .

Wait

CPUn
CPU/Mem Test

or CPU/MEM test to time out

boot processor
-

Print CPU/Mem Test Results

&
Wait

msb-0047-88

3-12

VAX 6200 Options and Maintenance

All CPUs execute their on-board self-tests at the beginning of the powerup tests. On line STF of the self-test display, a plus sign (+) is shown
for every module whose self-test passes (see Section 3.6).

The boot processor is determined as described in Section 3.4. On the
first BPD line, the letter B corresponds to the processor selected as boot

processor. Because the processors have not yet completed their powerup tests, the designated processor may later be disqualified from being
boot processor. For this reason, line BPD appears twice in the self-test
display.
;_

All CPUs execute an extended self-test using the memories. On line

ETF of the self-test display, a plus sign (+) is shown for every module

that passes extended self-test.

If all CPUs pass the extended self-test, the original boot processor

selection is still valid. Lines STF and ETF would be identical for all

the processors.

The yellow LED is lit on all processor modules that pass both power-up
tests. On the secondary processors, the red LED next to the yellow one
is also lit. On the boot processor, this red LED is off (see Figure 3-7).

If the original boot processor fails the extended test (indicated by a
minus sign (-) on line ETF), a new boot processor is selected. On
the second BPD line, the letter B corresponds to the processor finally
selected as boot processor.

The boot processor prints the self-test display. If none of the processors
is successfully selected as the boot processor, no self-test results are
displayed and the console hangs. You can identify this hung state by
examining the LEDs on the processor modules (see Section 3.7). All
yellow lights will be OFF. The group of six red lights will flash two
alternate patterns, and in one pattern only the bottom light will be ON.

-KAG2A Processor

3-13

Figure 3-6:

KA62A Power-Up Sequence, Part 2 of 2

Execute DWMBA Self-Test

h. 4

Print DWMBA/NVAXBI
Test Results

+
Configure Memory

|
Build CCA and Bitmap

1
Print Memory
Configuration

Find CCA

Prompt, Restart, or

Find CCA

’

Wait in

Continue Boot

Boot Operating
System

Console Mode

Operating System Starts |

Receive CCA

Secondary Processors

Message

CPU 1 Running

CPU 2 Running

CPU n Running

Wait in
Console Mode

Receive CCA
Message

msb-0048-88

3-14

VAX 6200 Options and Maintenance

Secondary processors are not involved in the DWMBA and VAXBI
adapter testing. The boot processor indicates the test results on the

lines labeled XBI on the self-test display. A plus sign (+) at the extreme
right means that the adapter test passed; a minus sign (-) means that

the test failed.

CCA stands for console communications area. The boot processor uses
the CCA to communicate with the secondary processors.

KAG2A Processor

3-15

3.6 KA62A Self-Test Results: Console Display
You can check KA62A self-test results both in the self-test display
and in the lights on the module. Pertinent information in the selftest display is shown in Example 3-2.

Example 3-2:

Self-Test Results

A
o

TYP

STF

ROM

3.0

BPD

ETF

BPD

>>>

3-16

2.0/3.0

VAX 6200 Options and Maintenance

NODE

EEPROM

SG01234567

XBI

1LV
128Mb
6}

The second line in the self-test display indicates the type (TYD) of
module at each XMI node. Processors are type P. In this example,
processors are at nodes 1, 2, 3, and 4.

The third line shows self-test fail status (STF) which are the results of
on-board self-test. Possible values for processors are:
+ (pass)
~ (fail)

All processors passed self-test in this example.

The BPD line indicates boot processor designation. When the system
completes on-board self-test, the processor with the lowest ID number
that passes self-test is selected as boot processor — in this example, the
processor at node 1.

The results on the BPD line indicate:
e

The boot processor (B)

e Processors eligible to become thé boot processor (E)
e

Processors ineligible to become the boot processor (D)

During extended self-test (ETF) all processors run a longer test, which

includes reading and writing memory and using the cache. On line
ETF, results are reported for each processor in the same way as on line
STF—a plus sign indicates that extended self-test passed and a minus
sign that extended self-test failed. In this example, the processor at node
1 (originally selected boot processor) failed the CPU/memory extended
,
self-test.
Another BPD line is displayed, because it is possible for a different
CPU to be designated boot processor before the system actually boots.
This occurs in this example, because the processor at node 1 failed the
“extended test. The lowest-numbered processor that passed both tests is
the processor at node 2. However, a previous SET CPU/NOPRIMARY
command has made this processor ineligible to be boot processor
(indicated by the designation D on the BPD line). Therefore, the
processor at node 3 is designated boot processor.

The bottom line of the self-test display shows the ROM and EEPROM

version numbers and the system serial number.

KAG2A Processor

3-17

3.7 KA62A Self-Test Results: Module LEDs
You can check KA62A self-test results both in the self-test display
and in the lights on the module. As shown in Figure 3-7, if self-test
passes, the large yellow LED at the bottom is on.

KAG62A LEDs After Power-Up Self-Test

Figure 3-7:

Hfl\
SELF-TEST PASSED

SELF-TEST FAILED

RED

ALL OFF

RED

€]

YELLOW

OFF

ON
|

ALL OFF

(GI]

REPRESENTS MOST

SIGNIFICANT BIT

TEST NUMBER

(BINARY)

» ON OR OFF

OFF

BOOT CPU

SECONDARY CPU
msb-0052-88

3-18

VAX 6200 Options and Maintenance

The large yellow LED at the bottom of the LEDs is ON if self-test passes
and OFF if self-test fails. (Here self-test means both the on-board power-up
test and the extended CPU/memory test.)

On the boot processor module, the red LED next to the yellow is OFF.
This LED, which is controlled by the SSC chip, is ON on all the secondary
processors.

The six red LEDs on top are all OFF if self-test passes. If any of the LEDs
is ON, self-test failed and the LEDs contain a binary error code. The error
code corresponds to the number of the test that failed. In the six error
LEDs, the most significant bit is at the top, but the lights have a reverse
interpretation — a bit is ONE if the light is OFF.
For example, assume a processor fails self-test (yellow LED is OFF), has a
minus sign (-) on its STF line, and shows the following pattern in its top six
LEDs:
TOP
on

off
off
off
on

BOTTOM

The failing test number decodes to 001110 (hex 0E, decimal 14). If you then
ran the ROM-based diagnostic 0 with TRACE ON, the last test number you
would see displayed is T0014.

When any of the six red error LEDs is lit, a failure has occurred during the
self-test sequence. But system power-up self-test actually comprises three
sets of tests: KA62A power-up tests, CPU/memory tests, and VAXBI adapter
(DWMBA) tests. Interpretation of the processor board error lights depends
on which set of tests was running, as explained below and in Table 3-2.

KAG62A Processor

3-19

Processor error LEDs can also indicate failures of memories or
VAXBI adapters.

Table 3-2:
Yellow
LED

KAG62A Error LEDs

Error

Diagnostic

LEDs
(hex)

and Test No.
(decimal)

Self-

Device
Failing

OFF

1-22

Power-up self-test (equivalent to RBD 0) |
T0001-T0034

OFF

25-38

CPU/memory test - Memory

Test
Line

KA62A

STF

‘

See Table 3-4.
MS62A

(equivalent to RBD 1)

lowest

XMI

(module with

T0001-T0020

ber)

node

ETF

num-

See Table 3-5.

OFF

CPU/memory test - Memory

MS62A

ETF

MS62A

ETF

MS62A

ETF

MS62A

ETF

Too02

(equivalent to ST 1/T=2)
OFF

Cl'U/memory test - Memory

Too02

(equivalent to ST 1/T=2)
OFF

CPU/memory test - Memory
T0002
(equivalent to ST 1/T=2)

OFF

CPU/memory test - Memory

T0002
(equivalent to ST 1/T=2)

OFF

CPU/memory test - Memory 6

MS62A 6

T0002

ETF

(equivalent to ST 1/T=2)

OFF

CPU/memory test - Memory 7

MS62A 7

T0002

ETF
:

(equivalent to ST 1/T=2)

OFF

CI'U/memory test - Memory

MS62A

LTr

T0002

(equivalent to ST 1/T=12)

1-1A

DWMBA test (equivalent to RBD 2)

(boot

T0001-T0026

processor)

See Table 5-5.

3-20

VAX 6200 Options and Maintenance

DWMBA

XBI

If a processor’s yellow LED is OFF and the six red LLEDs show an error
code in the range 1-22 (hex), the power-up self-test failed and the processor
board is bad. On the self-test console display, the processor shows a minus
sign (-) on the STF line.

After the power-up tests, each processor runs the CPU/memory tests. If a
test fails, the processor shows a minus sign (-) on the ETF line of the self-test
console display. With the first memory, LED error codes are numbered from
25 to 38 (hex), to distinguish them from the power-up tests. For example,
assume that a processor fails self-test (yellow LED is OFF) and shows the
following pattern in the error LEDs:
TOP

off
on

off
off
off
BOTTOM

The failing test number decodes to 100111 (hex 27), which corresponds to
the third CPU/memory test. If you then ran the ROM-based diagnostic 1
with TRACE ON, the last test number you would see displayed is T0003.
Each processor, after testing with the first memory, runs the CPU/memory
test on every other good memory module. (However, only CPU/memory
test T0002 is run.) If a failure occurs, the memory module is probably bad,
although the processor’s yellow light is OFF and the memory module’s
yellow light is ON. If several processors fail on the same memory, the
memory is certainly bad. Try using SET MEMORY to configure the bad
module out of the interleave set. For error codes higher than 38, consult
Table 3-2 to determine the failing memory.

The last series is the DWMBA tests. If one fails, the top six LEDs contain
an error code, although the processor’s yellow self-test LED is ON (because
the CPU itself has passed). The failing error code (converted to decimal)
corresponds to a test number in Table 5-5. Note that only the boot processor
performs the DWMBA tests, so the red LED next to the yellow LED is OFF.

KAG2A Processor

3-21

3.8 ROM-Based Diagnostics
The KA62A ROM contains five diagnostics, which you run using
the boot processor’s RBD monitor program described in Chapter 2.
Diagnostics 0, 1, and 4 test the boot processor. Diagnostic 2 tests

VAXBI adapters, and diagnostic 3 tests memories.

Table 3-3:

ROM-Based Diagnostics

Diagnostic

Test

KAG62A Power-up test

KA62A Extended CPU/memory test

DWMBA tests

Memory test

Second-Level Cache test

3-22

VAX 6200 Options and Maintenance

Diagnostic 0 is the same as the power-up self-test. It is useful for running
several passes when a processor fails self-test intermittently. Section 3.9
shows an example and lists the tests.

Diagnostic 1 is the same as the extended CPU/memory test. It is useful
for running several passes when a processor fails self-test intermittently.
Section 3.10 shows an example and lists the tests.

Diagnostic 2 is the set of tests that the boot processor runs for each DWMBA
VAXBI-to-XMI adapter when the system is powered on. (The DWMBA
has no on-board self-test of its own.) The diagnostic reports whether each
DWMBA passed and whether each I/O device on that adapter’s VAXBI bus
passed its own self-test.

Diagnostic 3 is a set of memory tests that tests sizes and runs extended
tests on all of memory. Section 4.10 and Section 4.11 show an example of
memory RBDs and list the tests.

Diagnostic 4 is a set of exhaustive cache tests. It is not meant to be used
frequently—you must explicitly request each test to run. The complete set
of seven tests takes over one hour.

For a detailed explanation of the diagnostic printout, see Chapter 2.

KAG62A Processor

3-23

3.9 KA62A Self-Test RBD
RBD 0 is equivalent to the KA62A power-up self-tests.

RBD3> START

; XCPST

/TRACE/HE

sw
s

Command

RBD3>

Console program
RBD monitor

decimal

prompt.

enter

RBD monitor

prompt,

node number

T/R

Runs

g®

>>>

KAG62A Self-Test RBD

Trace prints

each

Example 3-3:

Test

written

the

KA62A

results

where

program.
is

the

the boot

self-test

test

3
on

boot

number;
the

hexa-

processor.
processor

halt

console

error

terminal:

0.06

;

TOOO1

TO0002

TOO03

TO004

TOO0S

TOO06

TOO07

TOOO8

TOOOY

TOO10

;

TO011

T0012

TO013

TOO1l4

TOO015

TOO01l6

TOO17

TOO18

TOO19

TO020

TOO21 8§

;

F B

HE XDEV_ERR

;

00000000

In the example above:

8001

1
1

00000001

T00218
00000000

00001420

00040CDO

@ test 21 failed, B8 F indicates failure, and B the

diagnostic ran for one pass.

Table 3-4:

KA62A Power-Up Test—RBD 0

Test

Function

T0001

KA62A ROM test

T0002

SSC Base Address Register test

T0003

SSC RAM test

T0004

SSC Configuration Register test

T0005

SSC Bus Timeout test

T0006

SSC Programmable Address Decode test

TO007

KA62A CSR1 test

T0008

SSC Output Port test

T0009

KA62A EEPROM test

3-24

1FFD074C

VAX 6200 Options and Maintenance

Table 3-4 (Cont.):

KA62A Power-Up Test—RBD 0

Test

Function

T0010

SSC Interval Timer test

TOO11

SSC Programmable Timers tests

T0012

SSC Console test

T0013

SSC TOY Clock test

T0O014

CVAX Critical Path test

T0015

Cache Data RAM March test

T0016

Cache Mask Write test

T0017

Cache Data Parity RAM March test

T0018

CSR1:CPUD test

T0019

CFPA test

T0020

CFPA Critical Path test

T0021

XDEV Register test

T0022

XBER Register test

T0023

XFADR Register test

T0024

XGPR Register test

T0025

KA62A CSR2 Register test

T0026

XM1 High Longword Data test

T0027

Interprocessor IVINTR test

T0028

Write Error IVINTR test

T0029

CNAK Read test

T0030

CNAK Write test

T0031

CNAK IP/WE IVINTR test

T0032

Multiple Interrupt test

T0033

Parity Error CNAK Read test

T0034

Parity Error CNAK Write test

KAG62A Processor

3-25

3.10 CPU/Memory Test — RBD 1
RBD 1 is equivalent to the extended CPU/memory test.

Example 3-4:
>>>Z7

CPU/Memory Test RBD

This

Note

3>> T/R

Command

RBD3>

RBD monitor

decimal

node number

that

currently

]

Runs

the

console

RBD3>

START

; CPUMEM

/TRACE/HE

example

connect
new

uses

console

the

processor

enter

the

where

console

prompt

RBD monitor

prompt,

Test

command

program

program
is

the

hexa-

the processor

receiving

CPU/Memory

error.

RBD with

results

your

input.

trace;

written

halt
the

terminal:

0.03

;

TOO0O1

TO0002Z

TO0003

TO004

TO0005

TO006

TOOO7

TOOO08

TOQO09

TOO11

TOO10

TO0O012

TO0013

TO0014

TOO015

TOO01l6

TOO017

TOO18

TOO019

TO020

;

1000000000

00000000

8001

00000000

RBD3>

In the example above:
P means that the diagnostic ran successfully.

One pass was completed.

3-26

VAX 6200 Options and Maintenance

00000000

Table 3-5:

Extended CPU/Memory RBD Test—RBD 1

Test

Function

T0001

Cache Disable test

T0002

Cache Invalidate test

T0003

Cache Read Fill test

T0004

Interlock Instruction Cache test

T0005

Longword Write WBO0 test

T0006

Octaword Write WBO test

T0007

WB Switch and Purge test

T0008

Octaword Write WB1 test

TO009

Write Buffer Read Tests

T0010

Hit WBO test

T0011

Hit WB1 test

T0012

WB Mask Bit Byte Tests

T0013

WB Mask Bit Word Tests

T0014

Intlk Read/Unlck Write WB test

T0015

1/0 Space Write WB test

T0016

Node Private Space WB test

T0017

WB Address test

T0018

WB Pending Purge test

T0019

Duplicate Tag Invalidate test

T0020

Duplicate Tag Address test

KAG2A Processor

3-27

3.11 Second-Leve.I Cache RBD—RBD
4
RBD 4 tests the second-level cache.

default.

Example 3-5:

Second-Level Cache Test RBD

>5>

>>>

T/R

Console

Command to enter RBD monitor program

ST4/T=1:2/TR

hexadecimal

that

SLCRBD

;

T0001

prompt

node

number

currently

Specifically
be

run with

asks
trace

the

processor

receiving

your

for

tests

input

and

enabled

0.04

Test 1 started

Status message

8001

S
XX

SL_CACHE

TOOO1

7 00000000

00040000

00000000

00000000.

00000000

!
;7

program

! RBD monitor prompt, where 1 is the

RBD1>

Note that no tests are run by

TOO002

Q0000000

address

Test

Status

and

test

OO000000

00000000

showing

current

message

for

ending

address

started

weo

8001

S
XX

SL_CACHE

T0002

;00000000

01000000

00000000

;00000042

00000000

2]
:

00000000

8001

00000000

3-28

QUIT

00000000

address

00000000

message

number

00000000

Exit

VAX 6200 Options and Maintenance

and

message
of

for

00000000

showing

current

address.

00000000

showing

cache

00000000

test

00000000

ending

00000000

;00000000
RBD1>

00000000

message

hits

00000000

the RBD monitor

00000000

the

S denotes status message for individual test.

P means that the entire diagnostic ran successfully.
One pass-was completed.

Table 3-6:

Second-Level Cache RBD Test — RBD4

Test

Function

T0001

Parity Error Test

T0002

Cache Coherency Test

T0003

Cache Invalidate Test

T0004

Self-invalidate Test

T0005

Invalidate/Self-invalidate Test

T0006

Self-invalidate Scope Tests

T0007

Cache Ram Parity Error Test

TO008

Passive Release Test

KAG2A Processor

3-29

3.12 VDS Diagnostics
The KA62A software diagnostics that run under the VAX Diagnostic
Supervisor (VDS) are listed in Table 3-7. An example follows. See
Section 2.4 for instructions on running the supervisor.

Table 3-7:

KAG62A VDS Diagnostics

Program

Description

EVSBA

VAX Stand-Alone Autosizer

EVKAQ

VAX Basic Instructions Exerciser - Part 1

EVKAR

VAX Basic Instructions Exerciser - Part 2

EVKAS

VAX Floating Point Instruction Exerciser - Part 1

EVKAT

VAX Floating Point Instruction Exerciser - Part 2

EVKAU

VAX Privileged Architecture Instruction Test - Part 1

EVKAV

VAX Privileged Architecture Instruction Test - Part 2

ELKAX

Manual Tests

ELKMP

Multiprocessor Exerciser

Example 3-6:

DS>

RUN

EVSBA

DS>

SEL

KAO

DS>

RUN

ELKAX

Running Stand-Alone Processor Diagnostics

[diagnostic messages]
DS>

EXIT

>>>

3-30

VAX 6200 Options and Maintenance

Run the Stand-Alone Autosizer; then you do not need to attach devices
to the supervisor explicitly. However, if you want to know the Attach
command, enter HELP diagnostic_name ATTACH.
The instruction and manual tests run on the boot processor.

If the
boot processor is the CPU with the lowest XMI node number (which
is usually the case), issue the command to select KAO. The Diagnostic
Supervisor numbers the processors consecutively. For example, if the
KA62A module with the second-lowest XMI node number were boot
processor, you would select KA1.

This example runs the manual tests (ELKAX), which include powerfail,
machine check, restart, and EEPROM functions. The diagnostic prints
messages, and you must manually intervene using console switches.

KAG62A Processor

3-31

3.13 Machine Checks
A machine check is an exception that indicates a processor-detected
internal error. Figure 3-8 shows the parameters
that are pushed on
the stack in response to a machine check. Table 3-8 lists these

parameters.

Figure 3-8:

The Stack in Response to a Machine Check

BYTE COUNT (0010 hex)

MACHINE CHECK CODE

MOST RECENT VIRTUAL ADDRESS

INTERNAL STATE INFORMATION #1

INTERNAL STATE INFORMATION #2

PSL

msb-0053-88

Table 3-8:

Machine Check Parameters
Description

Machine check code (hex)
(SP+4)

Floating-point protocol error

3-32

Floating-point reserved instruction
Floating-point unknown error
Floating-point unknown error

Value

Parameter

Process PTE in PO space during TB miss
flows

Process PTE in P1 space during TB miss
flows

VAX 6200 Options and Maintenance

Table 3-8 (Cont.):

Machine Check Parameters

Parameter

Value

Description

Process PTE in P0 space during
M = 0 flows

Process PTE in P1 space during

Undefined INT.ID value

Undefined MOVCx state

Memory read error

SCB, PCB, or SPTE read error

Memory write error

SCB, PCB, or SPTE write error

<31:0>

Current contents of VAP register

<31:24>

Opcode

<23:16>

1110,

<15:8>

CADR<7:0>

<7:0>

MSER<7:0>

<31:24>

Most

<23:16>

11, state flags <5:0>

<15:8>

Restart flag, 111, ALU CC flags <3:0>

Most recent virtual address

M = 0 flows

(SP+8)

Internal state information #1
(SP+C)

Internal state information #2
(SP+10)

<7:0>

<31:0>

PSL

<31:0>

(SP +14)
(SP +18)

priority

highest

software

inter-

rupt <3:0>

recent contents of SC

<7:0>

Offset from saved PC to PC at time of ma-

chine check

PC at the start of the current instruc-

tion

Current contents of PSL
»

Machine checks are taken regardless of the current IPL. If the machine
check exception vector bits (<1:0>) are not both one, the operation of the

processor is undefined. The exception is taken on the interrupt stack and
the IPL is raised to 1F (hex).

KAG2A Processor

3-33

3.14 Console Commands
Table 3-9 summarizes the console commands. Commands specific
to the VAX 6200 include RESTORE EEPROM, SAVE EEPROM, SET
BOOT, SET CPU, and Z. The VAX 6200 Owner’s Manual gives a
full description of each command, its qualifiers, and examples.

Table 3-9:

Console Commands

Command
BOOT

Function
Initializes the system, causing a self-test, and begins the boot program.

CONTINUE

Begins processing at the address where processing was interrupted by a CTRL/P console command.

DEPOSIT

Stores data in a specified address.

EXAMINE

Displays the contents of a specified address.

FIND

Searches main memory for a page-aligned 256-Kbyte block of good
memory or for a restart parameter block.

HALT

Null command; no action is taken since the processor has already halted in order to enter console mode.

HELP

Prints explanation of console commands; operates like the HELP

command in VMS.

INITIALIZE

Performs a system reset, including self-test.

REPEAT

Executes the command passed as its argument.

RESTORE EEPROM

Copies the TK tape’s EEPROM contents to the EEPROM of the
processor executing the command.

SAVE EEPROM

Copies to the TK tape the contents of the EEPROM of the processor executing the command.

SET BOOT

Stores a boot command by a nickname.

SET CPU

Specifies eligibility of processors to become the boot processor.

SET LANGUAGE

Changes the output of the console error messages between numeric code only (international mode) and code plus explana-

tion (English mode).

SET MEMORY

Designates

ules;

the

method

supersedes

the

ing.

3-34

interleaving

console

VAX 6200 Options and Maintenance

program’s

the

memory

default

mod-

interleav-

Table 3-9 (Cont.):

Console Commands

Command

Function

SET TERMINAL

Sets console terminal characteristics.

SHOW ALL

Displays the current value of parameters set.

SHOW BOOT

Displays all boot commands and nicknames that have been saved
using SET CPU.

SHOW

CONFIGURA-

TION

Displays the hardware device
each XMl and VAXBlI node

type and revision level for
and indicates self-test sta-

tus.

SHOW CPru

SHOW ETHERNET

Displays the /ENABLED and /PRIMARY values for each node.

Locates all Ethernet adapters on the system and displays their addresses.

SHOW MEMORY

Displays the memory lines from the system self-test, showing interleave and memory size.

SHOW TERMINAL

Displays the baud rate and terminal characteristics functioning on the console terminal.

START

STOP
TEST

Begins

execution

instruction

the

address

speci-

fied in the command string.
Halts the specified node.

Passes control to the self-test diagnostics;

/RBD qualifier in-

vokes ROM-based diagnostics.

UPDATE

Copies contents of the EEPROM on the processor executing the command to the EEPROM of the processor specified in the command string.

Logically connects
sor on the XMI.

the

console terminal

another

proces-

KAG62A Processor

3-35

Introduces a comment.

3.15 How to Replace the Only Processor
After swapping modules in a single-processor system, you must
RESTORE the EEPROM image previously saved on a TK tape.

Example 3-7:

Replacing a Single Processor

A
o

TYP

STF

BPD

ETF

BPD

ROM =

3.0

XBI

1LV

64Mb

SN =

SG01234567

toptional

- may need latest console/diag patches again

>>>

EEPROM

>>> B

3-36

2.0/3.0

EEPROM =

>>> RESTORE EEPROM 0

PATCH

NODE

VAX 6200 Options and Maintenance

Turn the upper key switch straight up to the Off position (0).

Insert the new processor module.

Remove the defective KA62A module.

Turn the lower key switch to Halt.

Turn the upper key switch to Enable.

Check the self-test display for the processor, indicated by a P on the
TYP line (usually in slot 1). See Example 3-7.
If the processor shows a plus sign (+) on both lines STF and ETF, it
passed self-test.
You will see the following message
?4E System serial

number has not been initialized

Turn the lower key switch to Update.
10. Mount the TK cartridge containing the most recent saved image of the

old processor’s EEPROM.!
11. Issue the console command RESTORE EEPROM.
12. If any patches had been issued since the last save,

mount the TK
cartridge containing the patches. If the EEPROM has already been
patched to the latest revision, go to step 14. For more information
about the PATCH command, see Section 3.18.

13. Issue the console command PATCH EEPROM. The patch operation

takes approximately five minutes.
14. Turn the lower key switch to the Auto Start position.
15. Boot the operating system by issuing the console command B.

1 When the system was originally installed, field service saved the EEPROM on a TK
cartridge. The cartridge was left in the care of the customer. Subsequently, the EEPROM
might have been changed, then saved, several times.

This would normally be the case

following a PATCH operation.

If you do not have a tape, set the system serial number in the new processor as follows:

> > >[esc][DEL] SET SYSTEM SERIAL [RET]

Enter system serial number? aannnnnnnn [RET

UPDATE EEPROM? (Y or N) > > > Y [ReT]

KAG62A Processor

3-37

3.16 How to Replace the Boot Processor
The boot processor is the processor farthest to the right in the XMI
card cage—slot 1 in Example 3-8. If the new KA62A module has the
same version ROM as the secondary processors, you can update the
new processor’s EEPROM from one of the secondaries.

Example 3-8:

Replacing Boot Processor

NODE

TYP

STF

ROM

A
.

toptional

>>>

tthen

>>>

SET

>>>

SHOW

Current

BPD

ETF

BPD

XBI
D +

XBI
E +

ILV

128Mb

the

let

CPU/NOPRIMARY

2.0/3.1

new CPU

ROM

processor

boot

doesn’t

SG01234567

match

CPU

Primary:

/NOENABLED/NOPRIMARY-

>>>

SET

>>>

SHOW

Current

don’t

.
.

EEPROM =

>>>

3.0

CPU

Primary:

/NOENABLED/NOPRIMARY>>>

UPDATE

Turn the upper key switch straight up to the Off position (0).

Remove the defective boot processor module.

Insert the new KA62A module.

3-38

VAX 6200 Options and Maintenance

Turn the lower key switch to Halt.
Turn the upper key switch to Enable.

Check the self-test display for the new processor, indicated by a P on
the TYP line (usually in slot 1). See Example 3-8.
If the processor shows a plus sign (+) on both lines STF and ETF, it
passed self-test.
You will see the following message:
?4F

System serial

number not

initialized on primary processor

If you see the following message, the new module will not be able to
function as the boot processor:
?51

ROM revision mismatch.

Secondary processor has revision x.y.

If you don’t see this message, go to step 11.
10. Make the new module ineligible to be boot processor—use the console

command SET CPU/NOPRIMARY. The new processor will operate as a
secondary processor without problems, but the customer will continue
to see messages like the following when the system is powered on:
?2D

For

?51

ROM revision mismatch.

Secondary

Processor

253

EEPROM revision mismatch.

Secondary processor

has

revision x.y.

Secondary processor has

revision x.y/x.y.

As long as its ROM is out of revision, do not issue the command
UPDATE to the new module. Go to step 15.
11. Make one of the secondary processors the boot processor temporarily,

because the UPDATE command copies the boot processor’s EEPROM.
Then you can update the new processor.
The following command
immediately makes the processor at node 2 the boot processor: SET
Cru 2.
12. Turn the lower key switch to Update.
13. Now update the EEPROM of the new module from the temporary boot
processor, using the UPDATE command.
14. Turn the lower key switch to the Auto Start position.
15. Press the Restart button.

KAG62A Processor

3-39

3.17 How to Add a New Processor or Replace a
Secondary Processor
Add a new processor in a slot to the left of the boot processor, so

that it will be a secondary processor at power-up. Also follow the
procedure here if you need to replace a secondary processor. If the
new KA62A module has the same version ROM, you can update the
new processor’s EEPROM from the boot processor.

NODE

TYP

STF

BPD

ETF

BPD

ROM

3.0

EEPROM =

>>>

toptional

>>>

!tthen

don’t

the

let

>>> SET CPU/NOPRIMARY 3
>>>

SHOW

Current

XBI

ILV

128Mb

2.0/3.1

new CPU

ROM

processor

boot

+
+

Adding or Replacing Secondary Processor

Example 3-9:

doesn’t

SG01234567

match

CPU

Primary:

/NOENABLED-

/NOPRIMARY>>>

UPDATE

Turn the upper key switch straight up to the Off position (0).

Either remove the defective secondary processor module, or find an

empty slot where you can add the new processor.

Insert the new KA62A module.

Turn the lower key switch to Halt.

3-40

VAX 6200 Options and Maintenance

Turn the upper key switch to Enable.

Check the self-test display for the new processor, indicated by a P on
the TYP line (in this example: slot 3). (See Example 3-9.)

If the processor shows a plus sign (+) on both lines STF and ETF, it
passed self-test.

If you see the following message, the new module will not be able to
function as the boot processor:
?2D For Secondary Processor 3

251 ROM revision mismatch.

Secondary processor has revision x.y.

If you don’t see this message, go to step 10.

Make the new module ineligible to be boot processor—use the console

command SET CPU/NOPRIMARY. The new processor will operate as a

secondary processor without problems, but the customer will continue
to see messages like the following when the system is powered on:
?2D For Secondary Processor 3

251 ROM revision mismatch.

Secondary processor has revision x.y.

253 EEPROM revision mismatch.

Secondary processor has revision x.y/x.y.

As long as its ROM is out of revision, do not issue the command

UPDATE to the new module. Go to step 14.
10.

If you see the following message, compare the EEPROM revision
numbers of the secondary processor and boot processor (second
number in the EEPROM = X/Y field on the bottom line of self-test
display).

22D For Secondary Processor 3

253 EEPROM revision mismatch.

Secondary processor has revision x.y/x.y.

If the new secondary processor has a higher revision number than
the boot processor, PATCH the boot processor's EEPROM (see
Section 3.18).

11.

Turn the lower key switch to Update.

12.

Now update the EEPROM of the new module.

13. Turn the lower key switch to the Auto Start position.
14. Press the Restart button.

KAG2A Processor

3-41

3.18 PATCH EEPROM Command
The PATCH EEPROM command is a console command used by
field service to update console and RBD monitor programs when
new revisions are issued.

Example 3-10:

PATCH EEPROM Command
Load

the

drive

system;
>>>

PATCH

EEPROM

Enter

tape

on the

cartridge

upper

queue

the

PATCH

approximately
>>>

UPDATE

ALL

The

UPDATE

patch
>>>

the

tape

the

beginning.

command;

wait

minutes.

command

all

tape

EEPROM

the

copies

secondary

Initialize

the

reset,

and

check

system

the

EEPROM

processors.
to

cause

self-test

system

summary

line.

NODE

)

TYP

STF

BPD

ETF

BPD

ROM

the

into

left corner

XBI

ILV

128Mb

3.0

EEPROM

2.0/3.1

>>>

3-42

VAX 6200 Options and Maintenance

SG01234567

Save the current contents of the EEPROM to tape using the SAVE
EEPROM command (see Chapter 5 of the VAX 6200 Owrer’s Manual).
Halt all processors and enter console mode.

Load the new EEPROM patch tape into the TK tape drive.

Queue the tape to the beginning by pressing the load/unload
pushbutton. (See Appendix A of the VAX 6200 Owner’s Manual for details
on using the TK tape drive.)

Enter the PATCH EEPROM command. Wait approximately five minutes
for the patch to complete. You receive the console prompt back when
the patch is complete.

If the system is a multiprocessor system, run UPDATE ALL to copy
the new patch information to the secondary processors. The time for
UPDATE ALL to execute varies with the number of processors, up to a
maximum of 15 minutes for a four-processor system.

Reset the system, by pushing the Restart button on the control panel or

by entering the INITIALIZE command.

Check the summary line of the self-test. The EEPROM information
indicates first the starting revision number of the EEPROM for this
system, followed by a slash, and the current revision number of the
EEPROM for the processors. (See Example 3-10.)

If the revision numbers on all processors do not match, the system prints
out the most current revision number of the EEPROM data and gives an
error message indicating that the EEPROM code does not match. (See
Section 3.17.)

10.

Instruct the customer to save the updated contents to tape, using the
SAVE EEPROM command.

KABG2A Processor

3-43

3.19 PATCH EEPROM Command Error Messages
Table 3-10 lists the error messages and probable causes.

Table 3-10:

PATCH EEPROM Command Error Messages

Message

Meaning

739 Console patches are not usable.

The console patch area in EEPROM is corrupted or contains a patch revision that is incompatible with the console ROM.

?3F Key switch must be at "Update” to update EEPROM.

A SET command needs to update the
EEPROM, but the key switch is not set to allow updates.

252 EEPROM header is corrupted.

The EEPROM header has been corrupted.

The EEPROM must be reloaded from the TK
tape drive.
753 EEPROM revision mismatch.
Secondary processor has revision x.y/x.y.

A secondary processor has a different revision of EEPROM or has a different set of
EEPROM patches installed.

?54 Failed to locate EEPROM area.

The EEPROM did not contain a set of data required by the console.

be corrupted.
756 EEPROM area checksum error.

The EEPROM may

A portion of the EEPROM is corrupted. It
may be necessary to reload the EEPROM

from the TK tape drive.

?5C No such boot spec found.

The specified saved boot specification was not
found in the EEPROM.

?5E Major revision mismatch between tape

image and EEPROM.

The

tape contains

found in the EEPROM.
not be restored.

260 EEPROM header or area has bad format.

762

EEPROM

The image can-

All or part of the EEPROM contains inconsis-

tent data and is probably corrupted.
the EEPROM from the TK tape.

Unable

locate

im-

age with a major revision different from that

console

tape

Reload

de-

The console could not locate the I/O adapter
that controls the TK tape.

264 Insufficient memory to buffer EEPROM

The SAVE, RESTORE, and PATCH EEPROM
commands require working memory, but not
enough was found.

vice.

image.

3-44

VAX 6200 Options and Maintenance

Table 3-10 (Cont.):

PATCH EEPROM Command Error Messages

Message

Meaning

765 Validation of EEPROM tape image failed.

The image on tape is corrupted or is
not the result of a SAVE EEPROM command. The image cannot be restored.

766 Read of EEPROM image from tape failed.

The EEPROM image
fully read from tape.

267 Validation of local EEPROM failed.

a PATCH EEPROM operation, the
EEPROM must first contain a valid image beFor a RESTORE
fore it can be patched.

was

not

success-

For

EEPROM operation, the image was writ-

ten back to EEPROM but could not be read
back successfully.

768 EEPROM not changed.
769 EEPROM changed successfully.
?6A Error changing EEPROM.

The EEPROM contents were not changed.
The EEPROM contents were successfully

patched or restored.

An error
EEPROM.

occurred in writing to the
The EEPROM contents may be

corrupted.

26D EEPROM Revision = x.x/y.y.

The EEPROM contents are at revision x.x
with revision y.y patches.

?6E EEPROM header version mismatch.

The primary and a secondary processor have
different versions of the EEPROM. The requested operation cannot be performed.

?6F Tépe image Revision = x.x/y.y.

The EEPROM image on the TK tape is at revision x.x with revision y.y patches.

KAG2A Processor

3-45

3.20 KA62A Registers
The KA62A registers consist of the processor status longword,
internal processor registers, KA62A registers in XMl private space,
XMI required registers, and 16 general purpose registers.

Table 3-11:

KAG62A Internal Processor Registers

Mnemonic

Address

Type

Class

Kernel Stack Pointer

KSP

IPRO

RIW

Executive Stack Pointer

ESP

IPR1

RIW

Supervisor Stack Pointer

SSP

IPR2

RIW

User Stack Pointer

usr

IPR3

R/W

Interrupt Stack Pointer

ISP

IPR4

RIW

Reserved

IPR5-1PR7

P0 Base Register

POBR

IPRS8

RIW

PO Length Register

POLR

IPR9

RIW

P1 Base Register

P1BR

IPR10

R/W

P1 Length Register

P1LR

IPR11

RIW

System Base Register

SBR

IPR12

RIW

System Length Register

SLR

IPR13

R/IW

VAX Architecture

Reference

Key to Types:
R-Read

W-Write
R/W-Read/write
Key to Classes:

1-Implemented by the KA62A (as specified
ual).
2-Implemented uniquely by the KA62A.

the

Man-

3-Not implemented. Read as zero; NOP on write.
4-Access not allowed; accesses result in a reserved operand fault.
5-Accessible, but not fully implemented; accesses yield UNPREDICTABLE results.
n I-The register is initialized on KA62A reset (power-up,

set).

3-46

VAX 6200 Options and Maintenance

system reset,

and node re-

Table 3-11 (Cont.):

KAG62A Internal Processor Registers

Mnemonic

Address

Type

IPR14-1IPR15

Reserved

Class

Process Control Block Base

PCBB

IPR16

RIW

System Control Block Base

SCBB

IPR17

RIW

Interrupt Priority Level

IPL

IPR18

RIW

AST Level

ASTLVL

1IPR19

RIW

Software Interrupt Request

SIRR

IPR20

Software Interrupt Summary

SISR

IPR21

R/IW

11
3

IPR22-IPR23

Reserved
Interval Clock Control/Status

ICCS

IPR24

RIW

Next Interval Count

NICR

1IPR25

Interval Count

ICR

IPR26

Time-of-Year Clock

TODR

1PR27

R/IW

Console Storage Receiver Status

CSRS

1PR28

RIW

Console Storage Receiver Data

CSRD

IPR29

Console Storage Transmitter Status

CSTS

IPR30

RIW

Console Storage Transmitter Data

CSTD

IPR31

Console Receiver Control/Status

RXCS

IPR32

RIW

Console Receiver Data Buffer

RXDB

IPR33

Console Transmit Control/Status

TXCS

IPR34

Console Transmit Data Buffer

TXDB

IPR35

Translation Buffer Disable

TBDR

1PR36

RIW

Cache Disable

CADR

IPR37

RIW

Machine Check Error Summary

MCESR

IPR38

R/IW

Memory System Error

MSER

IPR39

R/W

IPR40-IPR41

Reserved
Console Saved PC

SAVPC

IPR42

Console Saved PSL

SAVPSL

IPR43

Reserved

1PR44-1PR47

KAB2A Processor

3-47

Table 3-11 (Cont.):

KA62A Internal Processor Registers

Mnemonic

Address

Type

Class

SBI Fault/Status

SBIFS

IPR48

RIW

SBI Silo

SBIS

IPR49

SBI Silo Comparator

SBISC

IPR50

R/IW

SBI Maintenance

SBIMT

IPR51

RIW

SBI Error

SBIER

IPR52

R/IW

SBI Timeout Address

SBITA

IPR53

SBI Quadword Clear

SBIQC

IPR54

I/O Bus Reset

IORESET

IPR55

Memory Management Enable

MAPEN

IPR56

R/W

Translation Buffer Invalidate
All

TBIA

IPR57

Translation Buffer Invalidate

TBIS

IPR58

Translation Buffer Data

TBDATA

1IPR59

RIW

Microprogam Break

MBRK

IPR60

R/IW

Performance Monitor Enable

PMR

IPR61

R/IW

System Identification

SID

1IPR62

Translation Buffer Check

TBCHK

IPR63

Single

Reserved

IPR64-1PR127

The IPRs are explicitly accessible to software only by the Move To Processor

which require kernel mode privileges. From the console, EXAMINE/I and
DEPOSIT/T commands read and write the IPRs.

3-48

VAX 6200 Options and Maintenance

Table 3-12:

XMI Registers for the KA62A

Mnemonic

Address

XMI Device

XDEV

BB + 00

XMI Bus Error

XBER

BB + 04

XMI Failing Address

XFADR

BB + 08

XMI XCPR

XGPR

BB + 0C

KA62A Control/Status #2

CSR2

BB + 10

Note: "BB” = base address of a node, which is the address of the first

location in nodespace.

KAG2A Processor

3-49

Table 3-13:

KAG62A Registers in XMI Private Space

Mnemonic

Address

KA62A Control/Status #1

CSR1

2000 0000

KA62A ROM

ROM

2004 0000 to 2007 FFFF

KA62A EEPROM

EEPROM

2008 0000 to 2008 7FFF

SSC Base Address

SSCBR

2014 0000

SSC Configuration

SSCCR

2014 0010

CDAL Bus Timeout

CBTCR

2014 0020

Console Select

CONSEL

2014 0030

Timer Control Register 0

TCRO

2014 0100

Timer Interval Register 0

TIRO

2014 0104

Timer Next Interval Register 0

TNIRO

2014 0108

Timer Interrupt Vector Register 0

TIVRO

2014 010C

Timer Control Register 1

TCR1

2014 0110

Timer Interval Register 1

TIR1

2014 0114

Timer Next Interval Register 1

TNIR1

2014 0118

Timer Interrupt Vector Register 1

TIVR1

2014 011C

CSR1 Base Address

CSR1BADR

2014 0130

CSR1 Address Decode Mask

CSRI1IADMR

2014 0134

EEPROM Base Address

EEBADR

2014 0140

EEPROM Address Decode Mask

EEADMR

2014 0144

SSC BBU RAM

BBURAM

2014 0400 to 2014 07FF

IP IVINTR Generation

IPIVINTRGEN

2101 0000 to 2101 FFFF

WE IVINTR Generation

WEIVINTRGEN

2102 0000 to 2102 FFFF

3-50

VAX 6200 Options and Maintenance

Chapter

MS62A Memory
This chapter discusses maintenance of MS62A memory modules. Sections
include:

Description

MS62A Configuration Rules
Specifications

Functional Description
Interleaving

Console Commands for Interleaving
Memory Self-Test
Memory Self-Test Errors
Memory RBDs

Memory RBD Test Examples
MS62A Control and Status Registers
MS62A Memory Installation

MS62A Memory

4-1

4.1

MS62A Description
The MS62A is a metal-oxide semiconductor (MOS), dynamic
random access memory (DRAM), which provides 32 Mbytes of data
storage. The memory module is designed for use with the VAX 6200
system through the primary interconnect known as the XMI.

Figure 4-1:

MS62A Module (Side 1)

DYNAMIC
RAM

CMOS

COLD START

DRIVERS—\ GATE ARRAY-\
[

GREEN

POWERA\|

}E] |

|L1

ID |
|

/—CORNER

E N

LED

[' e

‘PROM

—

‘

|P|

r————__r———

YELLOW

SELF-TEST
LED

lU|

L]
I

L———4

10 |

!___ _ O Ce

i-DRAMS

1| . ziFCONNECTOR

I
I

—

;}
—

|
ar

SEGMENTS

—_————,

I ____.ID b1 ,_.aj

RAM

DRIVERS

DRAMS

msb-0055-88

4-2

VAX 6200 Options and Maintenance

The 32-Mbyte memory module has the following features:

The memory module contains MOS dynamic RAM (DRAM) arrays; a
CMOS gate array that contains error correction code (ECC) logic and
control logic; and an XMI interface known as the XMI Corner.

Storage arrays are multiple banks of 72 DRAMSs with four banks.
ECC logic detects single-bit and double-bit errors and corrects single-bit
errors on 64-bit words.

Memory self-test checks all RAMs, the data path, and control logic on
power-up.

Quadwords,

octawords,

and hexwords

are read

from memory;

quadwords and octawords are written to memory.

Memory is configured by the console program for 1-, 2-, 4-, 8-way or no
interleaving.

MS62A Memory

4-3

4.2 MS62A Configuration Rules
Table 4-1 shows how the XMI card cage should be configured.
Memory modules are placed in adjoining XMI slots beginning at
slot A.

Table 4-1:
XMI
Slot Number

Memory Configurations for the XMI Backplane
Contents

Second memory module

First memory module

Third memory module

Fourth memory module

Sixth memory module

Seventh memory module

Fifth memory module

Eighth memory module

NOTE: Do NOT install memory modules in XMI backplane slots 1 or E.
Standard configurations include 1, 2, 4, or 8 memory modules. Systems will run
with 3, 5, or 7 memory modules; however, system performance may decrease as the
number of memory modules increases.

4-4

VAX 6200 Options and Maintenance

4.3 MS62A Specifications
Table 4-2 gives the MS62A specifications including access and cycle
times.

Table 4-2:

MSG62A Specifications

Parameter

Description

Module Number:

T2014-B

Dimensions:

23.3cm (9.2”) H and 28.0 cm (11.0") D

Addresses:

2-Mbyte boundaries

Starting Address

0 to 510 Mbytes

Ending Address

32 to 512 Mbytes

Technology:
DRAMS

1 Mbit dynamic RAMs

Gate Arrays

CMOS gate array

Interleave:

1-, 2-, 4-, 8-way or none

Error Correction Code:

Detects single- and double-bit errors and corrects singlebit errors

Temperature:

Storage Range

-40°C to 66°C (-40°F to 151°F)

Operating Range

5°C to 50°C (41°F to 122°F)

Relative Humidity:
Storage and Operating

10 to 95% noncondensing

Altitude:
Storage

Up to 4.8 km (16,000 £t)

Operating

Up to 2.4 km (8000 ft)

Current:

7.5A active, 2.8A standby, max. at +5VBB

Power:

37.5W active, 14.5W standby, max. at +5VBB

Refresh Request Frequency:

9.8 usec

Refresh Cycle Duration:

6 cycles

MS62A Memory

4-5

4.4 MS62A Functional Description
The MS62A consists of an XMI Corner, a memory gate array,
address and control drivers, DRAM arrays, and a cold start PROM.

Figure 4-2:

Simplified Block Diagram

XMI BUS

})

Data/Addresses and XMI Clocks
XMI CORNER

Node ID

XCI BUS

COLD

START
PROM
PROM ADDR and CTRL Lines

MEMORY

GATE

ARRAY

64 Data Bits and

ADDR and
,

ADDRESS
AND
CONTROL
DRIVERS

8 PROM Data Bits

<:— 8 Check Bits

DRAM

ARRAY

)

BANK 00

ADDR and|

RSQXY
BANK 10

CTRL Lines

DRAM
ARRAY

SIDEO1

BANK 01 K

DRAM
ARRAY

BANK 11

SIDE 02

msb-0056-88

4-6

VAX 6200 Options and Maintenance

The XMI Corner is located on the MS62A and contains interface logic.

The memory gate array transfers data between the XMI Corner and the
DRAMs. The gate array also controls address multiplexing, command
decoding, arbitration, and CSR logic functions.

Address and control logic modifies address bits received from the XMI
Corner. These modified address bits are used to control the selection of
the DRAMs during reading and writing.

Memory is arranged in four banks of DRAMs. Each bank contains 72
DRAMs for a total of 288 DRAMs on each memory module.
The data in the cold start PROM is used to initialize the gate array. After
a power-up or system reset, the data in the cold start PROM is loaded into
the gate array.

MS62A Memory

4-7

4.5 MS62A Interleaving
Interleaving optimizes memory access time and increases the
effective memory transfer rate by operating memory modules in

parallel.

Table 4-3:

Interleaving
Interleave Address Bits!
Array

<7>

<6>

1-Way

2-Way

O
RS

=T
. T
Ld

-A8

RO
QO
H

—

)

N o

8-Way

4-Way

<5>

Interleave

1Bits <7>, <6>, and <5> in the Starting and Ending Address Register (SEADR) de-

fine which array is interleaved.
ing.

4-8

Bits

<29:8>

and <4:0>

VAX 6200 Options and Maintenance

are not used in interleav-

Memory supports 1-, 2-, 4-, 8-way or no interleaving. Up to eight memory
modules of the same size can be interleaved. Interleaving is done on

hexword boundaries. Interleaving addresses are set in the Starting and
Ending Address Register by the console program.

NOTE: Memory modules that fail self-test due to multiple bit errors are tot included
in the interleave set.

Unless the system requires a specific, dedicated memory use, you should
run the default interleave rather than setting interleaving manually. In
default, the console program chooses the optimal configuration for the
system. Manual interleaving requires more operator attention.

MS62A Memory

4-9

4.6 Interleaving Examples
Figures 4-3 through 4-5 show how memory is set up for each mode
of interleaving.

Figure 4-3:

2-Way Interleaving

ARRAY

ARRAY
n+1

296
XXXXXXX

ADDRESS
5
4 -0
0
XXXXX

ADDRESS
29-6
XXXXXXX

5
1

4
0
XXXXX

msb-0057-88

Figure 4-4:

4-Way Interleaving

29-7
XXXXXX

ARRAY

ni+t

ADDRESS
4 -0
0
XXXXX

65
0

ARRAY
n+2

29
- 7
XXXXXX

ADDRESS
65
4 -0
1 0
XXXXX

ADDRESS

29
-

4 -0
XXXXX

ADDRESS
29-- 7 65
XXXXXX
1 1

4 -0
XXXXX

XXXXXX

65v
0

ARRAY
n+3

msb-0058-88
4-10

VAX 6200 Options and Maintenance

Figure 4-5:

8-Way Interleaving

ARRAY

ARRAY
n+t

ADDRESS

ARRAY
n+2

ADDRESS
65
4 -0
XXXXX
0 1 0

- 8 7
29
XXXXX X

ARRAY
n+4

ADDRESS
65
4 -0
XXXXX
0 0

ARRAY
n+6

29 -8 7
XXXXX 1

6
1

ADDRESS
4 -0
5
0
XXXXX

ADDRESS
29-87 65
XXXXX
0 0 1

4 -0
XXXXX

ARRAY
n+3

ADDRESS

29-8765
XXXXX

-0

65
1 1

4 --0
XXXXX

XXXXX

ARRAY
n+5

ADDRESS

29-87
XXXXX

XXXXX

ARRAY
n+7

ADDRESS
29-87
XXXXX 1

msb-0059-88

MS62A Memory

4-11

4.7 Console Commands for Interleaving
The SET MEMORY and SHOW MEMORY commands are useful
for setting the interleave to a memory configuration other than the
default interleave. This is not usually advisable, but occasional

customer use will warrant overriding the original console setting

of the interleave. The INITIALIZE command causes the VAX 6200
system to execute MS62A self-tests.

Example 4-1:

SET MEMORY and INITIALIZE Commands

8 >>> SET MEMORY

/INTERLEAVE : DEFAULT
For

system

modules,
of

the

32-Mbyte

4-way

XMI

nodes

memory

interleave

Memory modules

and A.

Displays the memory lines from the
system

four

32-Mbyte modules.

located

B >>> SHOW MEMORY

with

creates

self-test.

ILv

128Mb

NODE

/INTERLEAVE : DEFAULT
>>>

SET

MEMORY

/INTERLEAVE:(7+8,

B >>> SHOW MEMORY

Explicitly

interleave

sets

and

specifies

requested

and

the

what
user

created

(two

with modules

2-way

nodes

A).

Displays the memory lines from the
!

9+A)

system

self-test.

ILV

128Mb

/INTERLEAVE: (7+8,

8 >>> INITIALIZE A

4-12

NODE

9+A)

Initializes node A on the XMI;

returns

following

VAX 6200 Optio'ns and Maintenance

self-test

prompt

printout.

The callouts in Example 4-1 are explained below.

Shows the SET MEMORY command that configures interleaving with
the console program. This command invokes the default interleaving
configuration. If you set a memory configuration and want to revert to
the default, use this command.

The SHOW MEMORY command displays the node number (node #),
interleave (ILV), and total usable memory (xxMb) lines from the self-test
results.

Shows the SET MEMORY command that creates a 4-way interleave as
requested by the user. In this example the user explicitly specified how
to interleave the memory modules. Each interleaving set must contain
the node number of the memory module. If there is more than one
memory module in a set, they are joined by a + sign. Each set of
interleaved memory modules must be separated by a comma.

The SHOW MEMORY command displays the configuration set in B.
The specified node is initialized, self-test is run, and the > > >

prompt

KAS62A
returns. To initialize memory, you must know which slotsthethefollowing
modules are located in.

error message is received:

If an empty slot is initialized,

?42 Unable to initialize node.

This means that the INITIALIZE command failed to reset the node.
Section 4.8 describes the memory self-test and shows test results.

NOTE: Refer to Chapter 5 of the VAX 6200 Owner’'s Manual for detailed
information on the SET MEMORY and SHOW MEMORY commands.

When an MS62A module is initialized, it executes a self-test that clears all
memory array locations (loads these locations with zeros).

The SET MEMORY command does not change memory interleaving; it
just modifies the memory configuration in the EEPROM. The memory
configuration specified by the SET MEMORY command takes place when
the system is initialized (by a power-up or INITIALIZE command).

MS62A Memory

4-13

4.8 Memory Self-Test

The MS62A performs an initialization and self-test sequence
on power-up or when the sequence is requested by a console
command. During self-test the array chip is initialized, all memory
locations are tested, and the control and status registers are
initialized.

4-14

3.0

EEPROM

sTF

BPD
ETF

BPD

XBI

ILV

128Mb

2.0/3.0

S5G01234567

VAX 6200 Options and Maintenance

W+

TYP

0N
o+

.
+

NODE

M+

ROM =

W+

O+0+0w

M+

MS62A Memory Module Results in Self-Test
+ B ®

Example 4-2:

The callouts in Example 4-2 are explained below.

The TYP line shows that memory modules are installed in XMI slots 7
through A as indicated by the M in this row.
The STF line shows if memory modules pass self-test, as indicated by

the + in this row. If a module fails self-test, a— is indicated, but the
console still tests all pages within the module. The failing module is
included in the configuration, and the addresses that fail self-test are
not used by the system.
The ILV line indicates that two memory array modules are 2-way
interleaved and the other two modules are interleaved by themselves.
That is, memory modules in slots 7 and 8 are two-way interleaved into
one interleave set (indicated by all modules beginning with the letter A).
Since the memory module in slot A did not pass self-test, it is interleaved
by itself (it begins with the letter C). The memory module in slot 9 is
interleaved by itself (it begins with the letter B) since it is left alone and
cannot be interleaved with Al, A2, or the failing module.

This VAX 6200 system contains a total usable memory of 128 Mbytes
(four 32-Mbyte memory modules).
If all MS62A nodes pass self-test, the CPU/Memory test is performed on

the MS62A by the CPU. The console executes a simple read/write test to a
small portion of memory. Since there are no errors from the self-test, the
memory bitmap is set with all pages as good.

MS62A Memory

4-15

4.9 Memory Self-Test Errors
If an MS62A node fails self-test, an explicit memory test is run on
the failing module and console error messages are displayed. The
failing module is still included in the memory configuration.

Example 4-3:
>>>

SET

>>>

INITIALIZE

>>>

SHOW

MS62A Memory Module Node Exclusion

MEMORY

/INTERLEAVE:(7+8,

MEMORY

ILV

96Mb

/INTERLEAVE: (7+8,

NODE

If an MS62A node fails self-test, then the console executes an explicit
memory test during the building of the bitmap. Failing memory modules are
included in the configuration, although they are interleaved by themselves.
The only way to exclude a memory module from interleaving is to use the
SET MEMORY command without designating the node you want to exclude.
Example 4-3 shows how to exclude the memory module at node A.
During the explicit memory test, any number of the following
console
messages might be displayed to aid the field service engineer in diagnosing

the problem.
?37

Explicit
all

interleave

arrays

list

is bad.

Configuring

uninterleaved.

This means that the explicit set of memory arrays for the explicit interleave
includes no nodes that contain memo
arragr. All memory arrays found
in the system are unconfigured (the
SET
MEMORY command may have
specified nodes that did not contain memory modules).
245

Memory interleave

set

inconsistent:

n n

This means that the listed nodes (1 n) do not form a valid memory interleave
set. One or more of the nodes might not be a memory array or the set
contains an invalid number of memory arrays. Each listed memory array
that is valid will be configured uninterleaved; any memory array that is not
included in the set will not be interleaved.
246

Insufficent working memory for normal

4-16

VAX 6200 Options and Maintenance

operation.

This means that less than 256-Kbytes per processor of working memory

were found. There may be insufficient memory for the console to function
or for the operating system to boot.
247

Uncorrectable memory errors -- long memory test

must be performed.

This means that a memory array contains an unrecoverable error.
console must perform a slow test to locate all the failing locations.
248

The

Memory not interleaved due to uncorrectable errors.

This means that the listed arrays would normally have been interleaved
(by default or an explicit request). Because one or more arrays contained
unrecoverable errors, this interleave set will not be constructed.

NOTE: Refer to Appendix B, Console Error Messages, and Section 6.6 in the VAX
6200 Owner’s Manual for more information on these errors.

When all testing is completed, the yellow LED (located at the center of the
module’s edge farthest from the XMI backplane) lights, indicating that the
module has passed self-test. After self-test, starting and ending addresses
are set by the boot processor.

MS62A Memory

4-17

4.10 MS62A Memory RBDs
RBD test 3 of the ROM-based diagnostics sizes memory, runs
extended memory tests, and shows which test (if any) fail.

Table 4-4:

Memory Test — RBD Test 3

Test

Function

T00014

Memory Self-test

12 sec?

T00023

CSR Addressébility test

3 sec

T0003?

CSR Bit Toggling test

3 sec

T00043

Parity Error Detection test

3 sec

T0005>

Error Detection and Correction Logic test

3 sec

T0006>

Data Path test

3 sec

T00073

Quadword and Octaword Masked Write Logic

3 sec

T0008>

Interlock Lock Logic test

3 sec

T0009*

Interleaving and Address Boundary test

22 sec

T0010*

ECC RAM March test

7 min

T00114

RAM March test

15 min

T00124

RAM Moving Inversions test

4 hrs

test

TRun times are approximate for one 32-Mbyte module.
21f self-test fails, there is a 60 sec timeout.
3Tests T0002 through T0008 are run by default.

4The /C qualifier is required for these tests.

4-18

VAX 6200 Options and Maintenance

Approximate Run Time!

Tests T0002 through T0O008 are run by default. Tests T0010 through T0012
have to be selected by the user.
Tests are performed on all MS62As
unless the user chooses to test a single MS62A. Parameters specified in the
command line (refer to Table 4-5) allow one or all memory modules to be
tested. These parameters also allow RBD tests to be run from main memory
or ROM for RBD tests T0011 and T0012.
The /C (confirm destructive
memory test) switch is required with RBD tests T0001, T0009, T0010, T0011
and T0012.

Table 4-5:

RBD Test 3 Parameters

Hex!

Function

Run
ules

tests

and

Run tests
ule n only

and

Run tests 11 and 12 from ROM and test all memory modules

Run tests 11 and 12 from ROM and test memory module n only

from

main

from

memory

main

and

memory

test

and

all

memory

mod-

test

memory

mod-

'where n is the memory module backplane slot (n must be A, 9, 8, 7, 6, 5, B, or C) that has
to be specified in hex parameters 1n and 3n.

The CPU/memory test also runs tests that exercise memory. See Chapter 3
for information on this CPU/memory test.
See Chapter 2 for more
information on running the RBDs.

MS62A Memory

4-19

4.11

Memory RBD Test Examples
RBD memory tests are run with a number of user-selectable
switches as shown in Example 4-4 through Example 4-7. Refer to
Section 2.3 for more details on how to run RBDs.

Example 4-4: RBD Test on All Modules with Halt on Error
>>>

Console

>>> T/R

Command to

RBD3>

RBD3> START

/TRACE

/HE

program prompt

enter

RBD monitor

RBD monitor prompt,

where 3

decimal

node

that

currently receiving

number

any

;

error

TOO03

TO0O04

TOOO5

TOOO6

found

TO007

8001

;00000000

00000000

Example 4-5:
RBD3> START

your

tests will

halt on

TOOO8

00000000

RBD Test on Module in Siot A
/TRACE

Runs
test

the MS62A RBD test
results

written

slot

to the

only;
console

terminal
; XMARBD

3.00

TO002

TO0003

TO004

TOO05

TO006

TOOO7

8001

;00000000

00000000

4-20

input

(/HE)

on memory module

the hexa-

3.00

TO002

;

the processor

Runs the default MS62A RBD
test; test results written to the
console terminal;

7 XMARBD

program

TOOO8

00000000

VAX 6200 Options and Maintenance

00000000

Example 4-6:
RBD3> START 3

RBD Test with Module Error
/TRACE

Runs the default MS622 RBD test;
test results written to the console
terminal;

a hard error is found
in the memory module in slot 8

3.00

; XMARBD

TOOO7

TO006

TOO08

8001

ERRLOGIC

TO005

00000000 00000000 00000000 00000000 20073E32

TOO05

TO004

TO002

TO003

8001

00000000 00000001 00000000 00000000 00000000 00000000 00000000

Example 4-7:

RBD Test with Confirm Switch

RBD3> START 3 /TRACE

3A/ TEST=5:12/ C
Runs

RBD tests

T0005

through

memory module in slot A.

T0012

destructive memory test switch
is

required on tests T0009

Tests
;s XMARBD

;

and 0012

TO010

TOO1l1l

(/C)

and TO012..

are run out of

ROM.

3.00

TO0O05

TO006

HES
7 XX
;7

0011

Confirm

TO0007

1
RAM

TO008

TO009

8001
XX

1
TO011

!
!

Test status prints out every
60 sec until tests are completed;

/DS

disables

test

status printout.

TOO012

8001

RAM

TO012

8001

;

: 00000000

00000000

RBD3>
>>>

QUIT

00000000 00000000 00000000 00000000 00000000

Exit from RBD monitor program

Console

prompt

returns

MS62A Memory

4-21

4.12 MS62A Control and Status Registers
The memory contains 24 control and status registers (CSRs) to
control the memory and log errors. All CSRs are 32 bits long and
respond only to longword read and write transactions. Only full
writes are performed to the CSRs. If a parity error occurs during
a write operation, the operation is aborted and the contents of the

CSRs are unchanged.

The CSRs start at an address dependent upon the node ID. All CSR
addresses are designated as BB + n, where n is the relative offset of the
register.

Table 4-6:

MS62A Memory Control and Status Registers

CSR Name

Mnemonic

Address

Device Register

XDEV

BB+ 00

Bus Error Register

XBER

BB + 04

Starting and Ending Address Register

SEADR

BB + 10

Memory Control Register 1

MCTL1

BB + 14

Memory ECC Error Register

MECER

BB + 18

Memory ECC Error Address Register

MECEA

BB + 1C

Memory Control Register 2

MCTL2

BB + 30

TCY Register

TCY

BB + 34

Interlock Flag Status Registers?

IFLGn

BB +

1"BB” refers to the base address of an XMI node (2180 0000 + (node ID x 8000)).
ZRefer to Table 4-7 for the relative address of the Interlock Flag Status Registers.

4-22

VAX 6200 Options and Maintenance

Table 4-7:

Interlock Flag Registers

Interlock Flag Register

Mnemonic

Address

Interlock Flag

0 Status Register

IFLG 0

BB + 20

Interlock Flag

1 Status Register

IFLG 1

BB + 24

Interlock Flag

2 Status Register

IFLG 2

BB + 28

Interlock Flag

3 Status Register

IFLG 3

BB + 2C

Interlock Flag

4 Status Register

IFLG 4

BB + 40

Interlock Flag

5 Status Register

IFLG 5

BB + 44

Interlock Flag

6 Status Register

IFLG 6

BB + 48

Interlock Flag

7 Status Register

IFLG 7

BB + 4C

Interlock Flag

8 Status Register

IFLG 8

BB + 80

Interlock Flag

9 Status Register

IFLG 9

BB + 84

Interlock Flag 10 Status Register

IFLG10

BB + 88

Interlock Flag 11 Status Register

IFLG11

BB + 8C

Interlock Flag 12 Status Register

IFLG12

BB + 100

Interlock Flag 13 Status Register

IFLG13

BB + 104

Interlock Flag 14 Status Register

IFLG14

BB + 108

Interlock Flag 15 Status Register

IFLG15

BB + 10C

MS62A Memory

4-23

4.13 MS62A Memory Installation

Use the following procedure when removing or installing a memory
module.

Perform an orderly shutdown of the system.

Open the front cabinet door.

Pull the circuit breaker on the AC power controller to the Off position.

Turn the upper key switch on the front control panel to the Off position.

Put on the ground strap.
Remove the clear plastic door in front of the XMI cage.

CAUTION: You must wear an antistatic wrist strap attached to the cabinet
when you handle any modules.
Lift up the lever and remove the memory module from its slot.

Install the memory module in empty slots A through C (memory

modules should be installed adjacent to each other).

Close the lever after you have inserted a new memory module.
10. Replace the clear door.
11. Take off the ground strap.

12. Turn on system power and check that all nodes pass self-test.
13. Complete the installation by running appropriate self-test diagnostics
(refer to Section 4.8) and RBDs (refer to Section 4.10).

NOTE:

See Chapter 7 of the VAX 6200 Installation

acceptance instructions.

4-24

VAX 6200 Options and Maintenance

Guide for complete

Chapter

DWMBA XMIl-to-VAXBI Adapter
This chapter discusses the DWMBA modules. Sections include:
e

TPhysical Description
Physical Layout
Specifications

Functional Description

Configuration Rules

DWMBA ROM-Based Diagnostics Tests

DWMBA Registers

DWMBA XMi-to-VAXBI Adapter

5-1

5.1

DWMBA Physical Description

5.1.1

Physical Layout
The DWMBAJ/A is an XMI module with the standard XMI Corner,

an XMI self-test OK LED indicator,

transceivers,

timeout logic,

"brains” of the DWMBA/A. Most
DWMBA/A are surface-mounted.

Figure 5-1:

IBUS drivers/receivers and

and a gate array which acts as the

of the

components

DWMBA/A XMI Module

GATE ARRAY

XMI
CORNER

YELLOW

ZIF

L CONNECTOR
SEGMENTS

SELF-TEST

LED

on the

msb-0060-88

5-2

VAX 6200 Options and Maintenance

The DWMBA/B is a standard VAXBI module with a VAXBI Corner,
including a BIIC interface chip, the primary interface between the
VAXBI bus and the DWMBA/B node logic, a clock driver, and a

clock receiver. The DWMBA/B gate array is used mostly for data
path logic. The VAXBI self-test OK LED is on the VAXBI Corner,
and the module self-test OK LED is at the module edge opposite
the connector edge.

Figure 5-2:

DWMBA/B VAXBI Module

MASTER

SEQUENCER—\

YELLOW

VAXBI
CORNER\

SELF-TEST
LED

Ay L/ BIIiC
4

SLAVE
SEQUENCER — \

—

CLOCK

YELLOW

SELF-TEST —

LED

RECEIVER

—
ZIF
* CONNECTOR

GATE

ARRAYTM]

N 1| SEGMENTS

CLOCK

DRIVER

.T v

msb-0061-88

DWMBA XMi-to-VAXBI Adapter

5-3

5.1.2 DWMBA Specifications

The following specifications apply to the DWMBA modules.

Table 5-1:

DWMBA/A XMI Module Specifications

Parameter

Description

Module Number:

T2012

Dimensions:

23.3 ecm (9.2”) H x 28.0 cm (11.0") D x 0.23 cm (0.0937)
thick

Temperature:

Storage Range

-40°C to 66°C (-40°F to 151°F)

Operating Range

5°C to 50°C (41°F to 122°F)

Relative Humidity:

Storage and operating

10 to 95% noncondensing

Altitude:

Storage

Up to 4.8 km (16,000 ft)

Operating

Up to 2.4 km (8000 ft)

Current:

3A at +5V
200mA at +5VBB

Power:

5-4

16W

VAX 6200 Options and Maintenance

Table 5-2:

DWMBA/B VAXBI Module Specifications

Parameter

Description

Module Number:

T1043

Dimensions:

20.3 cm (8")

Hx 23.3 cm (9.2”) D x 0.23 cm (0.093") thick

Temperature:
Storage Range

-40°C to 66°C (-40°F to 151°F)

Operating Range

5°C to 50°C (41°F to 122°F)

Relative Humidity:

Storage and operating

10 to 95% noncondensing

Altitude:
Storage

Up to 4.8 km (16,000 ft)

Operating

Up to 2.4 km (8000 ft)
6A at +5V

Current:

10mA at -12V

Power:

Table 5-3:

DWMBA Cables

Part Number

Description

17-00849-08

18” DWMBA/B to DWMBA/B AC/DC OK cable, from VAXBI cage 2 slot 1
(segment C2) to VAXBI cage 1 slot 1 (segment C1).

17-01897-01

15" DWMBA cables for expander cabinet, from XMI slots C, B, 1, and 2
as needed (segments D and E) to VAXBI cages 3, 4, 5, and 6 slot 1 (segments D and E). Two per DWMBA.

17-01897-02

7" DWMBA cables, from XMI slot E (segments D and E) to VAXBI cage 2
slot 1 (segments D and E). Two per DWMBA.

17-01897-03

25" DWMBA cables, from XMI slot D (segments D and E) to VAXBI cage
1 slot 1 (segments D and E). Two per DWMBA.

DWMBA XMi-to-VAXBI Adapter

5-5

5.2 DWMBA Functional Description
The DWMBA adapter provides an information path between the
XMI bus and 1/O devices on the VAXBI bus.
The DWMBA

consists of two modules: the DWMBA/A and the DWMBA/B. The
DWMBA/A resides on the XMI bus, and the DWMBA/B resides
on the VAXBI bus. Four 30-pin cables, which make up the IBUS,
connect the two modules.
'

Figure 5-3:

DWMBA XMi-to-VAXBI Adapter Block Diagram

AN
DWMBA/A

| PR

IBUS

MODULE Lg—
5

LOGIC

XMI
CORNER

T2012 MODULE

XMI

VAXBI
CORNER
(BIC)

DWMBAB
MODULE
LOGIC

T1043 MODULE

VAXBI
msb-0062-88

5-6

VAX 6200 Options and Maintenance

The DWMBA/A contains the XMI Corner, the register files, XMI required
registers, DWMBA-specific registers, and the control sequencers for the XMI
interface.

The DWMBA/B contains the BIIC interface chip, interconnect drivers,
control sequencers to handle the control of the data transfer, status bits
to/from the DWMBA/A’s register files and the BIIC, DWMBA/B specific
registers, decode logic for direct memory access (DMA) operation, and
VAXBI clock-generation circuitry.

The DWMBA/A and DWMBA/B are connected by four cables of 30 wires
each. These 120 wires make up the IBUS, which transfers data and control
information between the two modules.
The DWMBA uses processor and DMA transactions to exchange
information.
CPU transactions originate from the KA62A(s) and are
presented to the DWMBA from the XMI bus with the processor as the XMI
commander and the DWMBA as the XMI responder.

DMA transactions originate from VAXBI nodes that select the DWMBA as
the VAXBI slave. These are read or write transactions targeted to XMI
memory space or are VAXBI-generated interrupt transactions that target a
KAG62A. For DMA transactions, the DWMBA is the XMI commander, and
the MS62A is the XMI responder.

The VAX 6200 system uses a 30-bit physical address. The DWMBA can
be both a master and a slave on the VAXBI. As a master, it carries out
transactions requested by its XMI devices. As a slave, it responds to VAXBI
transactions that select its node.

DWMBA XMl-to-VAXBI Adapter

5-7

5.3 DWMBA Configuration Rules
This section describes the configuration rules for the DWMBA/A
modules in the XMI card cage and for the DWMBA/B modules in

the system’s two 6-slot VAXBI card cages.

VAX 6200 Slot Numbers

VAXBI

\é;)\)éBEI1

CAGE 2

XMi CARD CAGE

S~
=

Figure 5-4:

HHHHHHE

EDCBA 987654321

| l

msb-0040-88

5-8

VAX 6200 Options and Maintenance

DWMBA/As are placed in the order shown in the table below:

Table 5-4:
XMI Node No.

DWMBA Configuration
VAXBI Cage No.

Configuration rules are as follows:

The DWMBA/B which corresponds to the DWMBA/A in XMI slot D is
placed in VAXBI cage 1, slot 1. The DWMBA/B which corresponds to
the DWMBA/A in XMI slot E is placed in VAXBI cage 2, slot 1.

All additional DWMBA/Bs are placed in slot 1 (rightmost slot) of each
card cage in the VAXBI expander cabinets, as shown in Table 5-4.

DWMBA XMi-to-VAXBI Adapter

5-9

5.4 DWMBA ROM-Based Diagnostics Tests
Test 2 of the ROM-based diagnostics tests checks functions of both
modules. The RBD runs the DWMBA power-up tests and can trace

the subtests, pinpointing errors.

The DWMBA has no on-board self-test. The boot processor ROM code
tests DWMBAs during additional power-up tests. The boot processor first
sizes all DWMBAs and then serially tests each one. VAXBI ROM-based
diagnostics can be invoked from the console program and from the RBD
monitor.
Example 5-1:

DWMBA XMI-to-VAXBI Adapter ROM-Based Diagnostics
Tests

>>>

T/R

Console

program

Command

RBD1>

START

/TRACE

RBD monitor program

RBD monitor

prompt,

hexadecimal

node number

processor

RBD1>

prompt

enter

that

your

input.

Runs

the

XMI

receiving

self-test,

node number

results written to

the

currently

DWMBA RBD

the DWMBA

where

testing

Test

the console

terminal:

TO0005

TO006

TO007

TO008

TOO009

TO012

TOO13

TO01l4

TOO15

3.0

TO001
TOO1l6

TO0017

TO018

TO0019

TO0020

TO0021

T0022

TO023

T0024

TO025

; XBI_SLF

T0026

;

8001

000000000

00000000

RBD1>

00000000

QUIT

>>>

5-10

VAX 6200 Options and Maintenance

00000000

Table 5-5:

DWMBA XMI-to-VAXBI Adapter RBD Tests

Test

Function

Default

T0001

DWMBA/A XMI Module CSR test

Yes

T0002

XMI Low Longword Parity Error test

T0003

XMI High Longword Parity Error test

T0004

XMI Function and ID Parity Error test

T0005

DWMBA/B CSR test

Yes

T0006

BIIC VAXBI Loopback Transaction test

Yes

T0007

BIIC VAXBI Transaction test

Yes

T0008

DMA test

Yes

T0009

DMA Buffer test

Yes

T0010

XMI Parity Error Interrupt test

T0011

Write Sequence Error Interrupt test

T0012

CPU Buffer C/A Fetch Parity Error (Interrupt) test

Yes

T0013

CPU Buffer Data Fetch Parity Error (Interrupt) test

Yes

T0014

DMA Buffer Data Fetch Parity Error (Interrupt) test

Yes

T0015

VAXBI Interlock Read Error (Interrupt) test

Yes

T0016

DMA-A Buffer C/A Load Parity Error (Interrupt) test

Yes

T0017

DMA-A Buffer Data Load Parity Error (IVINTR) test

Yes

T0018

DMA-B Buffer C/A Load Parity Error (Interrupt) test

Yes

T0019

DMA-B Buffer Data Load Parity Error (IVINTR) test

Yes

T0020

CPU Buffer Data Load Parity Error (Interrupt) test

Yes

T0021

BCI Parity Error test

Yes

T0022

Nonexistent Memory (Interrupt) test

Yes

T0023

CRD Error (Interrupt) test

Yes

T0024

VAXBI Interrupt test

Yes

T0025

VAXBI IP Interrupt test

Yes

T0026

No Stall Timeout Test

Yes

DWMBA XMi-to-VAXBI Adapter

5-11

5.5 DWMBA Registers
Two sets of registers are used by the DWMBA adapter: VAXBI
registers (residing in the BIIC) and DWMBA registers (residing on

both modules of the DWMBA). The DWMBA registers include the
XMI required registers and DWMBA-specific registers addressed
in DWMBA private space.

Table 5-6:

VAXBI Registers

Name

Mnemonic

Address!

Device Register

DTYPE

bb+00

VAXBI Control and Status Register

VAXBICSR

bb+04

Bus Error Register

BER

bb
+ 08

Error Interrupt Control Register

EINTRSCR

bb+0C

Interrupt Destination Register

INTRDES

bb+10

IPINTR Mask Register

IPINTRMSK

bb+ 14

Force-Bit IPINTR/STOP Destination Register

FIPSDES

bb+18

IPINTR Source Register

IPINTRSRC

bb+1C

Ending Address Register

EADR

bb
+ 24

BCI Control and Status Register

BCICSR

bb+ 28

Write Status Register

WSTAT

bb+2C

Force-Bit IPINTR/STOP Command Register

FIPSCMD

bb +30

User Interface Interrupt Control Register

UINTRCSR

bb+40

General Purpose Register 0

GPRO

bb+F0

General Purpose Register 1

GPR1

bb +F4

General Purpose Register 2

GPR2

bb +F8

General Purpose Register 3

GPR3

bb+FC

Slave-Only Status Register

SOSR

bb + 100

Receive Console Data Register

RXCD

bb
+ 200

IThe abbreviation “bb” refers to the base address of a VAXBI node (the address of the first lo-

cation of nodespace).

5-12

VAX 6200 Options and Maintenance

Table 5-6 lists the VAXBI registers. The VAXBI registers are described
in Chapter 5 of the VAXBI Options Handbook. Table 5-7 lists the DWMBA
registers.

Table 5-7:

DWMBA XMI Registers

Name

Mnemonic!

Address?

Device Register

XDEV

BB+ 00

Bus Error Register

XBER

BB+ 04

Failing Address Register

XFADR

BB +08

Responder Error Address Register

AREAR

BB +0C

Error Summary Register

AESR

BB +10

Interrupt Mask Register

AIMR

BB+ 14

Implied Vector Destination/Diagnostic Register

AIVINTR

BB+18

Diag 1 Register

ADG1

BB+1C

Control/Status Register

BCSR

BB +40

Error Summary Register

BESR

BB +44

Interrupt Destination Register

BIDR

BB +48

Timeout Address Register

BTIM

BB +4C

Vector Offset Register

BVOR

BB +50

Vector Register

BVR

BB +54

Diagnostic Control Register 1

BDCR1

BB +58

Reserved Register

—

BB +5C

1[f the first letter of the mnemonic is “X” or "A,” it indicates that the register re-

sides on the DWMBA/A; a first letter of “B” indicates that the register resides on the
DWMBA/B.

2The abbreviation “BB” refers to the base address of an XMI node (the address of the first location of nodespace).

DWMBA XMI-to-VAXBI| Adapter

5-13

Chapter

XMI Card Cage
This chapter describes the XMI card cage. Removal and replacement
procedures are detailed, and configuration restrictions are listed. Sections
include:
*

Description
System Use
Specifications

XMI Card Cage Removal

Switching XMI Card Cages

XMI Card Cage Replacement

Installing Modules in the XMI Card Cage

XMI Troubleshooting

XMl Card Cage

6-1

6.1 XMI Card Cage Description
6.1.1

System Use

The XMI card cage provides the high-speed system bus. Figure 6-1
is a simplified block diagram showing physical connections between
the XMI card cage and other components in the cabinet.

Figure 6-1:

XMI Card Cage Connections

H7215

H7214

VAXBI

CHASSIS

L
|
msb-0100-88

6-2

VAX 6200 Options and Maintenance

The XMI card cage is a 14-slot cage with zero insertion force (ZIF)
connectors. The cage is 3 inches deeper than a VAXBI cage, providing
for larger XMI modules. The backplane area extends over three of the five
connector segments, which leaves two segments for I/O pins. Mounted in
the center rear of the XMI backplane is a daughter card that holds the central
arbiter chip. Four slots in the center of the cage have no I/O connectors, so
only processor or memory modules may be placed in these slots.
For each VAXBI bus, there must be an XMI-to-VAXBI adapter. This adapter
(DWMBA) consists of two modules: a DWMBA/A module in the XMI card
cage and a DWMBA/B module in the VAXBI card cage.

XMI Card Cage

6-3

6.1.2 XMI Card Cage Specifications

The XMI card cage (see Figure 6-2) is a 14-slot cage. The XMI card
cage is located in the upper part of the cabinet, on the right side
as you view the system from the front. The field-replaceable unit
(70-24373-01) does not include the power bus bar assembly, the two

side mounting plates, the daughter card, and three foam air seals.
XMI Card Cage

Figure 6-2:

FRONT

J—

& |

XMI CARD CAGE

\
-}

..
o
MLO-HC-000988

Table 6-1:

XMI Card Cage Assembly Specifications

Parameter

Description

Part Number:

70-24373-01, 14-slot cage with no daughter card or bus bars

Location:

Upper right front

Dimensions:

12" Hx101/2" Wx 12 1/4" L

Weight:

29 Ibs

Power:

One H7215 DC regulator and two H7214 DC regulators

Service From:

Front and rear of cabinet

6-4

VAX 6200 Options and Maintenance

Table 6-2:

XMI Card Cage Cables

Item

Part Number

Description

Cables:

17-01525-01

XMI to both H7214s

17-01566-01

XM1 to J3 of H7215

17-01568-02

XMI to J4 of XTC, 20-pin ribbon

17-01662-01

XMI ground strap

17-01812-01
'

XMI to filter board in system control assembly to power the TK unit

17-01833-01

Fail safe enable cable, XMI to H7231 battery backup unit and H405

17-01897-01

15"

DWMBA cables for expander cabinet,

from XMl slots C, B, 1, and 2 as needed (segments D and E) to VAXBI cages 3, 4, 5, and 6
slot 1 (segments D and E). Two per DWMBA.
17-01897-02

7" DWMBA cables,

from XMI slot E (seg-

ments D and E) to VAXBI cage 2 slot 1 (segments D and E). Two per DWMBA.
17-01897-03

25" DWMBA cables, from XMI slot D (segments D and E) to VAXBI cage 1 slot 1 (segments D and E). Two per DWMBA.

A2-M1094-10

Includes a torque screwdriver

Large Phillips and flat screwdrivers

Small Phillips screw-holding screwdriver or
one with magnetic tip

—

11/32” nutdriver

Daughter Card

54-18172-01

Small module that mounts on XMI backplane

Bus Bar Assembly

12-27676-01

+5V/ +5VBB/Ground

12-27938-01
12-27939-01

-5.2V XMI bus bars
-2V XMI bus bars

74-34536-01
74-34536-03

Three pieces of foam used for air seals

Tools Required:

VAXBI Tool Kit

Subassemblies:

Foam Air Seals

74-36670-02

XMI| Card Cage

6-5

6.2 XMI Card Cage Removal
The XMI card cage is removed from the front of the cabinet after
you disconnect connections at the backplane.

6.2.1

Prepare for Removal
Prepare the system for shutdown. Set up a work space nearby where
you can store the modules and work on the XMI card cage. Label
and disconnect the signal and power connections.

Figure 6-3:

XMI Backpliane Power Connections

msb-0101-88

6-6

VAX 6200 Options and Maintenance

SR
S o A

Perform an orderly shutdown of the system.

Turn the upper key switch on the front control panel to the Off position.

Pull the circuit breaker on the AC power controller to the Off position.
Unplug the machine.

Open the rear cabinet door.

Drop the I/O bulkhead tray to expose the card cages.

CAUTION: You must wear an antistatic wrist strap attached to the cabinet
when you handle any modules.

Disconnect all signal cables taking care to note their locations.

Cable to the XTC power sequencer (17-01568-02)

Cables between DWMBA modules (17-01897-02 and -03) from XMI
to VAXBI

Disconnect only these power connections (see Figure 6-3).

Four wires on the bus bars that go to the TK unit (17-01812-01)
1.

+5V

+12V

Two ground connections. Use 11/32 inch nutdriver.

Fail safe enable cable (17-01833-01)
1.

Connection to +5VBB

Connection to Ground

Cable to the H7215 power regulator (17-01566-01)

Harnesses to the two H7214 power regulators
(On each regulator, remove the four screws from the leads.)

Lines to the two H7214 regulators (17-01525-01)
(Remove connector from the regulator.)

Ground strap to the chassis (17-01662-01)
Remove the screw from the bus bar with a large Phillips screwdriver,
and with your free hand catch the nut in back of the bus bar. (See
Figure 6-5 for a detailed view of the bus bar assembly.)

(Remove connector from the regulator.)

XMI Card Cage

6-7

6.2.2 Removal of XMI Card Cage from Cabinet

Before removing the cage from the cabinet, remove all modules and
set them aside.

Figure 6-4:

XMI Card Cage

——

msb-0102-88

6-8

VAX 6200 Options and Maintenance

Open the front cabinet door.

Remove the clear plastic door in front of the XMI cage.

CAUTION: You must wear an antistatic wrist strap attached to the cabinet
when you handle any modules.

Lift up the levers and remove modules from the cage.
protective bags and note which slots they had been in.

Put them in

With a flat screwdriver remove and save the four mounting screws that
fasten the XMI cage assembly to the chassis (see Figure 6-4 for location
of these screws).

Pull the cage out of the system cabinet carefully so that you do not
damage the power harnesses or bus bars. Push from the back to ease
the cage out toward the front of the cabinet.

XMI Card Cage

6-9

6.3 Switching XMI Card Cages
Some parts must be removed from the XMI cage taken from the
system and installed on the new XMI cage.

The entire bus bar assembly

The daughter card (static sensitive)

The two side mounting plates

Three pieces of foam air seal must be installed on the new cage.

Figure 6-5:

XMI Bus Bar Assembly and Daughter Card

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L)
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2
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S, Sl ¢ el

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msb-0103-88

6-10

VAX 6200 Options and Maintenance

6.3.1 Removal of Bus Bars and Daughter Card
Remove the bus bars and daughter card as follows:
1.

First remove the +5V/+5VBB/Ground bus bar assembly.
screws and note where they came from.

Keep all

Then

-2V (see

remove the two

smaller bus bars

for -5.2V and

Figure 6-5).

Disconnect the blue cable at the far left that goes to -12V.

CAUTION: The daughter card is static sensitive. You must wear an antistatic
wrist strap attached to the cabinet when you handle any modules.

Unscrew the three large thumbscrews that hold the daughter card to the
XMI backplane.

Pull the daughter card away from the backplane.

XMI| Card Cage

6-11

6.3.2 Moving XMl Side Mounting Plates and Installation
of Parts

Remove the two side mounting plates from the defective cage and
install on the new cage (see Figure 6-6). Install on the new cage

the bus bars and daughter card that you removed from the old cage.
Install the new foam air seals.

Figure 6-6:

XMI Cage Side Mounting Plates

msb-0104-88

6-12

VAX 6200 Options and Maintenance

Perform the tasks in the following order:
1.

Remove the two side mounting plates by removing the four screws
shown in Figure 6-6. (Don’t install them on the new cage yet.)

On the new cage install the two smaller bus bars and then the
+5V/+5VBB/Ground bus bar assembly. Using the torque screwdriver
from the VAXBI tool kit, torque screws to 9 (+/-1) inch-pounds.

Install the foam air seals in the locations shown in Figure 6-7: at the
bottom front and back and at the top of the backplane.

Install the side mounting plates.

Install the daughter card.

Figure 6-7:

Installation of Foam Air Seals

msb-0105-88

XMI Card Cage

6-13

6.4 XMI Card Cage Replacement
Return the new cage to the system cabinet.
Reattach all the
connections on the backplane, install the screws attaching the cage
to the chassis, and then put the modules back into their slots (see
Figure 6-8).

Figure 6-8:

XMI Card Cage

msb-0106-88

6-14

VAX 6200 Options and Maintenance

The new XMI cage should be installed in the cabinet as follows:
1.
Slide the XMI card cage into the system cabinet taking care not to

damage the power harnesses or bus bars. Push from the front and

pull from the rear.

Install the four mounting screws that secure the XMI cage assembly to
the system cabinet (see Figure 6-8).
Reattach the power connections.

On the H7214 regulators, torque the screws to 27 (+/-5) inch-pounds
Make sure the two remote sense wires going to the two H7214 regulators
go to the correct regulator. If they are switched, the +5V supplies may
not turn on.

Reattach all signal connections.

Put the I/O bulkhead tray back into place at the rear of the cabinet.

CAUTION: You must wear an antistatic wrist strap attached to the cabinet
when you handle any modules.

Insert the modules into their correct slots.
Replace the clear door.

Turn on system power and check that all nodes pass self-test.

NOTE: See Chapter 7 of the VAX 6200 Installation Guide for complete

acceptance instructions.

XMI Card Cage

6-15

6.5 Installing Modules in the XMI Card Cage
The

XMI card cage design and XMI
restrictions on the use of the slots.

architecture place

some

Either a KA62A or DWMBA module must be in slot 1 or E.

No memory modules in slots 1 and E.

No I/O modules in slots 5 through A.

Only XMI modules may be placedin the XMI card cage, installing
any other modules may destroy the modules.

Figure 6-9:

Numbering of XMl Slots

T~ g~

XMI CARD CAGE

msb-0107-88

6-16

VAX 6200 Options and Maintenance

An XMI node takes its node number from the slot in which it resides. This
is unlike the VAXBI bus where the node number assignment derives from
node ID plugs inserted into the backplane for each slot.
Figure 6-9 shows the numbering of the slots in the XMI card cage. Slots are
numbered in hexadecimal to correspond to the self-test display. Because
the daughter card is mounted in the center of the XMI backplane, no IO
cables can be connected to slots 6 through 9. Also, no 1/O modules are to
go in the two adjoining slots, 5 and A. Another configuration restraint is that
either the first or last slot in the cage must house a non-memory module.
If no module is in either slot, the XMI shuts down. Memory modules must
not be placed in the first and last slots.

Any problems with the XMI cage or modules are indicated in the first three
lines of the self-test display (see Section 2.2 for an explanation of these
lines).

CAUTION: Never attempt to insert a VAXBI module into an XMI card cage. The
backplane technology for the XMI and VAXBI is similar but incompatible. Inserting
a VAXBI module into an XMI card cage can destroy the module. Note that VAXBI
modules are shorter than XMI modules.

XMl Card Cage

6-17

6.6 XMI Troubleshooting
When you install modules in the XMI card cage, several items need
to be checked. Table 6-3 gives a checklist of items to troubleshoot.

Table 6-3:

XMI Troubleshooting Checklist

Symptom

Possible Cause

No power to cages

Clear plastic door not in place or not latched.

Intermittent module response

Poor contact at connector

Loose cabling at backplane
Module does not appear on
self-test results

Loose cabling at the backplane

System not configured correctly.

6-18

VAX 6200 Options and Maintenance

The XMI and VAXBI card cages are in back of clear plastic doors.
NOTE: If these doors are opened when power is still on, a power interlock switch
cuts off power from the regulators to either the VAXBI side or to the XMI side,
depending on the door opened.

Before turning power back on, make sure the clear plastic doors are in place
and latched. You can then push the reset switch on the H7206 PAL unit (see
Figure 9-9) to return power to the system.

The XMI bus requires a non-memory module in slots 1 or E. If both of these
slots are empty, the bus will shut down. Also, if a memory module is in
either of these slots, the bus will shut down.

If you receive intermittent module response, or the module does not show
up on self-test as being present at all, make sure that the module is seated
properly, and check the backplane cabling.
Modules may fail self-test because of poor contact at the connector. A
thorough cleaning of the gold pads on the module and of the connector in
the card cage corrects this contact failure. If the connections seem to be
faulty, clean the contact areas of the connector and module. Table 6-4 lists
tools and supplies for connector cleaning.

Table 6-4:

XMI Connector Cleaning Supplies

Item

Part Number

Function

VAXBI tool kit

A2-M1094-10

Maintaining card cages

Paddle wipe handle

47-00116-01

Holding paddle wipes

Paddle wipes

12-26321-01

Cleaning contact area inside ZIF connectors

Gold-wipesTM

49-01603-00

Cleaning module connector contact area

Protective goggles

29-16141-10

Eye protection

Nitrile gloves

29-26403-00

Hand protection

TMGold-wipes is a trademark of TEXWIPE.

XMI Card Cage

6-19

Chapter 7

VAXBI Card Cage
This chapter describes the VAXBI card cage and its use in the VAX
6200 system. Removal and replacement procedures are detailed, and
configuration restrictions are listed. Sections include:
e

VAXBI Card Cage Description
System Use
Specifications
Subassemblies

VAXBI Card Cage Removal

Switching VAXBI Cages

VAXBI Card Cage Replacement

VAXBI Expansion and Configuration Rules

VAXBI Troubleshooting

VAXBI Card Cage

7-1

7.1 VAXBI Card Cage Description
7.1.1 System Use

The VAXBI card cage serves as the I/O subsystem of the VAX 6200

system. Each processor cabinet has two VAXBI card cages, each
providing a separate VAXBI channel. The interface between the

VAXBI bus and the XMI bus is the DWMBA option. The DWMBA/B
module requires one slot for communication with its companion

module, the DWMBA/A, in the XMI card cage. Figure 7-1 is a
simplified block diagram showing physical connections between the
VAXBI card cages and other components in the cabinet.

Figure 7-1:

VAXBI Card Cage Connections

H7215

H7214

VAXBI

CHASSIS

IO DEVICES

CHASSIS

— /O DEVICES

msb-0108-88

7-2

VAX 6200 Options and Maintenance

The VAX 6200 system uses the VAXBI bus for input/output. Each system
has two VAXBI card cages, which provide two VAXBI channels of six slots
each. A VAXBI expander cabinet can also be added, which can hold up to
four VAXBI cages.

The VAXBI card cage has zero insertion force (ZIF) connectors.
The
backplane area extends over two of the five connector segments; the
remaining three segments are used for I/O connections. Installed on the
cage are I/O transition headers.
Each VAXBI bus has its own XMI-to-VAXBI adapter (DWMBA).
DWMBA/B module of this adapter resides in the VAXBI card cage.

The

VAXBI Card Cage

7-3

7.1.2 VAXBI Card Cage Specifications

The VAXBI card cage (see Figure 7-2) is a 6-slot cage. The VAXBI
card cages are located in the upper part of the cabinet, on the
left as you view the system from the front. The field-replaceable
unit [H9400-AA] does not include the power bus bar assembly, the
node ID plugs, and the terminators. Two cages configured as two
separate VAXBI channels are in each system cabinet.

VAXBI Card Cages

UL
]

Figure 7-2:

FRONT

VAXBI

CARD CAGES

MLO-HC-001088

7-4

VAX 6200 Options and Maintenance

Table 7-1:

VAXBI Card Cage Assembly Specifications

Parameter

Description

VAXBI Card Cage

H9400-AA, one 6-slot cage
cludes transition headers

Location:

Upper left front

Dimensions:

12.5"

Weight:

26 lbs (2-cage assembly)

Power:

One

with

terminators

bus bars;

in-

regulator

sup-

Wx 9.5" D x 10" L

H7215

regulator

and

one

H7214

ply power to the 2-cage assembly.

Service From:

Front and rear

Table 7-2:

VAXBI Card Cage Cables

Part Number

Description

17-00849-08

18~

DWMBA/B

cage

(segment

slot

DWMBA/B

C2)

AC/DC

VAXBI

cable,

cage

from

VAXBI

slot

(seg-

slot

seg-

ment C1).

17-01149-01

Boot

enable

jumper

(on

Ethernet

adapter

slot,

ment E1)

17-01458-02

VAXBI ground strap

17-01496-01

Ethernet (from slot 6, segment E2,
net port)

17-01523-01

VAXBI +/-12V to ]3 on H7215

17-01569-01

DWMBA, from slot 1, segment C1, to J11 of H7206

17-01897-01

15" DWMBA cables for expander cabinet, from XMl slots C, B, 1, and 2 as
needed (segments D and E) to VAXBI cages 3, 4, 5, and 6 slot 1 (segments D and E). Two per DWMBA.

17-01897-02

7" DWMBA cables, from XMI slot E (segments D and E) to VAXBI cage
2 slot 1 (segments D and E). Two per DWMBA.

17-01897-03

25" DWMBA cables, from XMl slot D (segments D and E) to VAXBI cage

to H7214 (+13V) and to Ether-

1 slot 1 (segments D and E). Two per DWMBA.
17-01920-01

AC/DC OK cable,
from VAXBI slot 1,
segment C1.
Installed in system to provide for expansion to VAXBI expander cabinet.

VAXBI Card Cage

7-5

7.1.3 VAXBI Card Cage Subassemblies

Table 7-3 lists the part numbers for FRUs of the VAXBI card cage
assembly in the VAX 6200 system.

oo @ununn@@

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[]

VAXBI Card Cage Subassemblies

(o]

Figure 7-3:

msb-0109-88

7-6

VAX 6200 Options and Maintenance

Table 7-3:

VAXBI Subassemblies and Tools Required
Part Number

Description

12-28508-01

+5V/ +5VBB/Ground VAXBI bus bars

12-28342-01

-5.2V VAXBI bus bars

12-28345-01

-2V VAXBI bus bars

20-24486-01

Near end (GIF)

20-24487-01

Far end (GOM)

VAXBI Node IDs

12-23701-17

Set of 16

Transition Header

12-22246-01

Three-segment 1/O header

Foam Air Seals

74-34536-01

Three pieces of foam used for air seals

Item
Subassemblies:
Bus Bar Assembly

Terminators

74-34536-02

74-34536-03

Tools Required:

VAXBI Tool Kit
Screwdrivers

A2-M1094-10

Includes a torque screwdriver

Offset ratchet screwdriver

Large and small Phillips screwdrivers

Small Phillips screw-holding screwdriver or one
with magnetic tip
Flat screwdriver

VAXBI Card Cage

7-7

7.2 VAXBI Card Cage Removal
The two VAXBI card cages are bolted together and must be removed
as a unit. They are removed from the front of the cabinet after you

disconnect connections at the backplane. You must first remove the
system control assembly before you can remove the VAXBI card
cage assembly (see Chapter 8 for instructions).

7.2.1 Prepare for Removal
Prepare the system for shutdown. Set up a work space nearby where
you can store the modules and work on the VAXBI card cages. Label
and disconnect the signal and power connections.

Figure 7-4:

VAXBI Backplane Power Connections

+5VBB

GROUND

ALL +5V
lf5577——5.2V

ALL

GROUND

| +12v-tav

-2V
msb-0110-88

7-8

VAX 6200 Options and Maintenance

The VAXBI card cage assembly, which contains both cages, slides out the
front of the system cabinet. Before attempting to remove the assembly,
detach cables from other system components that go to the backplanes of
both cages.

Perform an orderly shutdown of the system.

Turn the upper key switch on the front control panel to the Off position.

Pull the circuit breaker on the AC power controller to the Off position.

Unplug the machine.

NOTE: You must first remove the system control assembly; see Chapter 8 for
instructions for the removal procedure.

Open the rear cabinet door.

Drop the 1/O panel to expose the card cages.

CAUTION: Put on the antistatic wrist strap that is attached to the cabinet.
7.

Label and disconnect all signal cables.

Remove the connectors from the transition headers. Note that the
CIBCA and KDB50 transition headers must be removed from the card
cage, since the I/O segment is a permanent part of the transition header.
8.

Disconnect all power connections (see Figure 7-4).
a.

Cable to the H7215 power regulator (17-01523-01)

Harness to the H7214 power regulator
(On the regulator, remove the four screws that fasten the harness to

(Remove connector from the regulator.)

the regulator.)

FEthernet line to the H7214 regulator (17-01525-01) from each cage

with a DEBNA adapter

(Remove connector from the regulator.)

Ground strap from each cage to the chassis (17-01458-02)

VAXBI Card Cage

7-9

7.2.2 Removal of VAXBI Card Cages from Cabinet

Before removing the cages from the cabinet, remove all modules
and set them aside.

Figure 7-5:

VAXBI Card Cages

L__J

—

@\g@MQ/fii

ooooJ

~
7-10

VAX 6200 Options and Maintenance

msb-0111-88

Open the front cabinet door and lift it from its hinges to provide more
clearance.

Remove the clear plastic door in front of the VAXBI cage area.

CAUTION: You must wear an antistatic wrist strap attached to the cabinet
when you handle any modules.

Lift up the levers to remove modules. Put them in protective bags and

note which slots they had been in.

Remove and save the four mounting screws that fasten the VAXBI

assembly to the chassis (see Figure 7-5 for location of these screws).

Pull the cages out of the system cabinet carefully so that you do not
damage the power harnesses or bus bars.

VAXBI Card Cage

7-11

7.3 Switching VAXBI Cages
The following is an overview of what you must do to switch a cage:
Remove the bus bar assembly from the defective cage leaving the
bus bars in place for the second cage and attach the bus bars to
the new cage. Remove the node ID plugs and insert them on the
replacement cage at the same slot location. Remove the terminators
from the old cage and install them on the new one. Unbolt the side
and inner mounting plates from the original assembly so that you
can replace the defective VAXBI card cage.

Figure 7-6:

VAXBI Bus Bar Assembly

[4
[
it

[

i) i

[

msb-0112-88

7-12

VAX 6200 Options and Maintenance

7.3.1 Removal of VAXBI Bus Bars
On ONLY the cage that needs to be swapped out of the two-cage assembly,

remove the bus bars in the following order:

First remove the +5V/+5VBB/Ground bus bar assembly (12-28508-01),
14 screws.

Next remove the -5.2V and -2V bus bars (5 screws into the power
cubes).

Disconnect the +/-12V connection (17-01523-01) to the H7215 regulator.

Use a small Phillips screwdriver (#6-32 screws). See Figure 7-6 for a detailed

view of the VAXBI bus bar assembly.

VAXBI Card Cage

7-13

7.3.2 Removal of Other VAXBI Parts

Remove the node ID plugs, the terminators, and the mounting

plates from the old cage (see Figure 7-7 for their locations).

Figure 7-7:

VAXBI Backplane Components

GIF
TERMINATOR

GOM
TERMINATOR

@70e°

@°

ool @)’3
®°

0°

@ m

®°

a(o]

nfl

Sl oooon

J & ®

Qe @

@°

msb-0113-88

7-14

VAX 6200 Options and Maintenance

Remove the node ID plugs.

Remove the terminators by removing the two screws with a flat

Remove the side and inner mounting plate so that you can slide the
defective cage away from the remaining cage. For the inside plate,

screwdriver (see Figure 7-7).

remove the innermost screws with an offset ratchet screwdriver (see
Figure 7-8).

Figure 7-8:

VAXBI Cage Mounting Plates

msb-0114-88

VAXB! Card Cage

7-15

7.3.3 Installation of VAXBI Parts

Install the terminators, node ID plugs, and bus bar assembly taken
from the old cage. Attach the side and inner mounting plates.
Finally, install new foam air seals.

Figure 7-9:

Installation of Foam Air Seals

msb-0115-88

7-16

VAX 6200 Options and Maintenance

On the replacement cage, install the parts that you removed from the
defective VAXBI card cage:
e

Terminators

Node ID plugs

Bus bar assembly, in the reverse order of the removal.

Side and inner mounting plates

Torque

screws to 9 (+/-1) inch-pounds.

Three foam air seals need replacement, as shown in Figure 7-9: the top
front of the backplane and the bottom surfaces of the cages, back and
front.

The new cage, the H9400-AA, is shipped with six transition headers
installed. For the slots that are to hold the CIBCA and KDB50 options,
remove the transition headers.

VAXBI Card Cage

7-17

7.4 VAXBI Card Cage Replacement
Return the two-cage assembly to the system.

Reattach all the

connections on the backplane, install the screws attaching the cage

to the chassis, and then put the modules back into their slots (see
Figure 7-10).

VAXBI Card Cages

0000

Figure 7-10:

cooo0]

SR TR

Efifi

_
msb-0116-88

7-18

VAX 6200 Options and Maintenance

The VAXBI cage assembly should be installed in the cabinet as follows:
1. Slide the VAXBI card cages into the system cabinet taking care not to
damage the power harnesses or bus bars. You will also need to pull the
cages from the back.

2. Install the four mounting screws that secure the VAXBI cage assembly
to the system cabinet.

Reinstall the system control assembly (see Chapter 8 for instructions).

Screw on the transition headers containing the CIBCA and KDB50
cables. Tighten the screws in stages: do not tighten one completely
before tightening the other. Torque both screws to 6 (+/-1) inch.

pounds, using the torque screwdriver.

Attach the other signal connections in the 1/O area.
6.

Reattach the power connections.

At the H7214 regulator, torque screws to 27 (+/-5) inch-pounds.
On the bus bars torque screws to 9 (+/-1) inch-pounds.

DPut the I/O bulkhead tray back into place at the rear of the cabinet.
CAUTION: You must wear an antistatic wrist strap attached to the cabinet

when you handle any modules.

Insert the modules into the VAXBI card cages.
9.

Replace the clear door.

10. Turn on system power and check that all nodes pass self-test.
11. Rehang the front cabinet door.

NOTE: See Chapter 7 of the VAX 6200 Installation Guide for éomplete

acceptance instructions.

VAXBI Card Cage

7-19

7.5 VAXBI Expansion and Configuration Rules
The system cabinet has two VAXBI cages configured to provide
two VAXBI channels for 1/0. One of the six slots holds the XMI-

to VAXBI adapter module, leaving five slots for I/O modules. Four

more cages can be installed in a VAXBI expander cabinet to provide

four additional VAXBI channels. A total of 30 slots are available for
1/0.

Figure 7-11:

Numbering of VAXBI Slots

J
k]

[
o

\
P

il
}

4l
!

1
msb-0117-88

7-20

VAX 6200 Options and Maintenance

The cage and backplane were designed so that any module or node can
reside in any slot (except slot 1). On the VAXBI bus, the module that drives
the clock must reside in the first slot (see Figure 7-11 for the numbering
of VAXBI slots). In the VAX 6200 system the DWMBA/B module of the
XMI-to-VAXBI adapter drives the clock and therefore must reside in slot 1.

VAXBI node numbers derive from node ID plugs that plug into the
backplane. A node, which can be more than one module, is assigned the
node number of the plug that is inserted into the slot of the module with
the VAXBI Corner. Multimodule nodes must be in adjacent slots.
Constraints on adding VAXBI options include:
*

Power requirements for the options

Memory latency time needed to access MS62A memory

See the VAX Systems and Options Catalog for VAXBI option configurations
in VAX 6200 systems. See Appendix B of the VAXBI Options Handbook for
power requirements of various options. The DWMBA/B module requires 6
amps.

VAXBI! Card Cage

7-21

7.6 VAXBI Troubleshooting
When you install modules in the VAXBI card cages, several items
need to be checked.
Table 7-4 gives a checklist of items to
troubleshoot.

Table 7-4:

VAXBI Troubleshooting Checklist

Symptom

Possible Cause

No power to cages

Clear plastic door not in place or not latched.

Intermittent module response

Poor contact at connector
Loose cabling at backplane

Module does not appear on selftest results

Loose cabling at backplane

System not configured correctly

7-22

VAX 6200 Options and Maintenance

The XMI and VAXBI card cages are in back of clear plastic doors.

NOTE: If these doors are opened when power is still on, a power interlock switch
cuts off power from the regulators to either the VAXBI side or to the XMI side,
depending on the door opened.

Before turning power back on, make sure the clear plastic doors are in place
and latched. You can then push the reset switch on the H7206 PAL unit (see
Figure 9-9) to return power to the system.

The XMI bus requires a non-memory module in slots 1 or E. If both of these
slots are empty, the bus will shut down. Also, if a memory module is in
either of these slots, the bus will shut down.

If you receive intermittent module response, or the module does not show
up on self-test as being present at all, make sure that the module is seated
properly, and check the backplane cabling.

Modules may fail self-test because of poor contact at the connector. A
thorough cleaning of the gold pads on the module and of the connector in
the card cage corrects this contact failure. If the connections seem to be

faulty, clean the contact areas of the connector and module. Table 7-5 lists
tools and supplies for connector cleaning.

Table 7-5:

VAXBI Connector Cleaning Supplies

Item

Part Number

Function

VAXBI tool kit

A2-M1094-10

Maintaining card cages

Paddle wipe handle

47-00116-01

Holding paddle wipes

Paddle wipes

12-26321-01

Cleaning contact area inside ZIF connectors

Gold-wipesTM

49-01603-00

Cleaning module connector contact area

Protective goggles

29-16141-10

Eye protection

Nitrile gloves

29-26403-00

Hand protection

TMGold-wipes is a trademark of TEXWIPE.

VAXBI Card Cage

7-23

Chapter

Control Subsystem Assemblies
This chapter describes the specifications and maintenance of the system
control assembly and its subassemblies. Sections include:
System Control Assembly Specifications

System Control Assembly Removal and Replacement
XTC Power Sequencer Specifications
XTC Removal and Replacement

Control Panel Assembly Specifications

Control Panel Assembly Removal and Replacement
TK Tape Drive Specifications

TK Tape Drive Removal and Replacement

Filter Board and TOY Clock Battery Specifications

Filter Board and TOY Clock Battery Removal and Replacement

Control Subsystem Assemblies

8-1

8.1 System Control Assembly Specifications
The system control assembly is located in the upper left front corner
of the cabinet. It houses the separate FRUs of the control panel,

TK tape drive, the XTC, and the battery powering the TOY clock.
The system control assembly’s part number is 70-24903-01.

Figure 8-1:

System Control Assembly

4
|

SYSTEM

CONTROL ASSEMBLY
c—/

FRONT
—

XTC POWER

SEQUENCER

TK50

TAPE DRIVE

—

ASSEMBLY
-

0‘.

N
“

BATTERY

CONTROL PANEL

ASSEMBLY

FILTER

BOARD

msb-0063-88

8-2

VAX 6200 Options and Maintenance

Table 8-1:

System Control Assembly Specifications

Parameter

Description

Part Number:

70-24903-01

Location:

Upper left front

Dimensions:

11.25"

Weight:

18 1bs, with TK and control panel installed

Signal Cables:

Hx 85"

Wx 17.5" D

17-01814-01 from the control assembly shield leading to the TBK50
adapter’s slot at VAXBI backplane segment D

Service From:

Front and rear of cabinet, front door removed

Tools Required:

Large and small Phillips screwdrivers

Subassemblies:

Control panel assembly (54-16574-01)
XTC power sequencer (54-17243-01 or 20-29176-01)
TK tape drive (TK50-AA)
TOY 3-cell battery (12-19245-02)

Diagnostics:

Control panel assembly lights will light when the control assembly is correctly installed.

Control Subsystem Assemblies

8-3

8.2 System Control Assembly Removal and

Replacement
Working mainly from the front of the cabinet, remove or replace
the system control assembly using a large and small Phillips
screwdriver. The assembly has four screws on the front of the
assembly, two screws on the back of the assembly, and one cable.

Figure 8-2:

System Control Assembly Removal

msb-0064-88

REMOVAL

Perform an orderly shutdown of the system.

Turn the control panel upper key switch to the Off position.

Pull the circuit breaker switch and unplug the machine.

Open and remove the front door.

door.

8-4

(See Section 10.1.)

VAX 6200 Options and Maintenance

Open the rear

Remove the four power cords (orange, black, red, and black) from the
back of the console assembly using a large Phillips screwdriver. ( See
Section 6.2.)

Remove the four screws from the corners of the XTC power sequencer
module (see Section 8.4), and lay the XTC down with all of its
connections in place.

Remove signal cable 17-01814-01 from the upper right corner of the
back of the console assembly. This cable is the control from the TK
to VAXBI backplane segment D, at the slot housing the TK’s TBK50
adapter.

Working from the rear of the cabinet, loosen the two #10-32 screws with
a large Phillips screwdriver.

Move to the front of the cabinet. Remove the two #10-32 screws on
the left side of the console assembly using a large Phillips screwdriver.
Remove one of the two screws on the upper right support panel. Loosen
the remaining screw.

10. Supporting the control assembly with one hand,
loosened screw with your hand.

remove the last

11. Using both hands, carefully pull the control assembly forward and out
of the cabinet.

REPLACEMENT

Install the XTC and the control panel assembly (see Section 8.4 and
Section 8.6).

As you guide the control assembly into the front of the cabinet, push
the control assembly all the way to the left. This will align the screws
with their holes in the structure. If you have trouble closing the cabinet
door, check the assembly alignment.

Reverse steps 1 through 8 in the Removal section above.

Control Subsystem Assemblies

8-5

8.3 XTC Power Sequencer Specifications
The XTC power sequencer is mounted on the back of the system
control assembly. It is wired to the XMI backplane, the console

terminal, the TK tape drive, and the H7214 power regulator.

XTC Power Sequencer

MHne

%'I\w

Figure 8-3:

b——r

REAR

XTC POWER

SEQUENCER

msb-0065-88

8-6

VAX 6200 Options and Maintenance

Table 8-2:

XTC Power Sequencer Specifications

Parameter

Description

Part Number:

54-17243-01 or 20-29176-01

Location:

Upper right rear, mounted on the back of the system control assembly

Dimensions:

25" Wx8" Hx .06" D

Weight:

Less than 1 1b

Power:

+5VBB at 0.6 amps
+12V at 1.0 amps
-12V at 0.1 amps

Cables:

Four ribbon cables and one TOY clock battery cable:
12-19245-02 battery cable, J1 connector with red plug end
17-01498-01 XTC to H7206, ]3 14-pin connector
17-01567-01 XTC to console port, J5 10-pin connector
17-01568-02 XM1 to XTC, J4 20-pin connector, 56" long
17-01816-01 XTC to control panel, J2 connector

Service From:

Rear of cabinet, door removed

Tools Required:

Large Phillips screwdriver

Subassemblies:

None

Diagnostics:

Power indicator lights on the control panel will light and the control panel key switches will turn when the XTC power sequencer is correctly installed.

Control Subsystem Assemblies

8-7

8.4 XTC Removal and Replacement
Working from the rear of the machine, you remove or replace the
XTC power sequencer using a large Phillips screwdriver. The XTC
has four #6-32 screws, four ribbon cables, and one TOY clock
battery cable.

Figure 8-4:

XTC Power Sequencer Removal

XTC

msb-0066-88

8-8

VAX 6200 Options and Maintenance

REMOVAL

Execute an orderly shutdown of the system.

Turn the control panel upper key switch to the Off position.

Pull the circuit breaker switch.

Unplug the system.

Open the front and rear doors.

Wearing a ground strap, disconnect the 17-01568-02 ribbon cable at J4

Disconnect the 17-01498-01 ribbon cable at J3 which is a 14-pin
connector cable leading to the H7206 power and logic box.

Disconnect the 17-01567-02 ribbon cable at J5 which is a 10-pin

Disconnect the 17-01816-01 ribbon cable at J2 which leads to the control

which is a 20-pin connector 56 inch leading to the XML

connector cable leading to the console port.

panel on the system control assembly.

10. Disconnect the 12-19245-02 lead with a red plug end at the J1 connector;
the cable leads to the TOY clock battery in the system control assembly.
11. Use a large Phillips screwdriver to remove the four #6-32 screws located
on each corner of the XTC power sequencer.

12. Pull the XTC toward you and remove.

REPLACEMENT

Reverse steps 1 through 12 in the Removal section above.

Control Subsystem Assemblies

8-9

8.5 Control Panel Assembly Specifications
The control panel assembly is in the upper left front of the cabinet,
and is a subassembly within the system control assembly. It is part
number 54-16574-01.

Control Panel Assembly

[ HI

Figure 8-5:

FRONT

3
L~

OLLYPANEL
%/////7,A —/NTRASSEMB
msb-0067-88

8-10

VAX 6200 Options and Maintenance

Table 8-3:

Control Panel Assembly Specifications

Parameter

Description

Part Number:

54-16574-01

Location:

Front upper left corner

Dimensions:

425" Wx2.75" Hx 1.75" D

Weight:

Less than 5 1bs

Cables:

17-01818-01 cable from the J1 20-pin connector to the assembly bulkhead

Service From:

Front of cabinet, door open

Tools Required:

Large Phillips screwdriver

Subassemblies:

None

Diagnostics:

Control panel assembly lights light when power is turned on by the

control panel key switch.

Control Subsystem Assemblies

8-11

8.6 Control Panel Assembly Removal and
Replacement
Working from the front of the cabinet, remove the control panel

assembly using a large Phillips screwdriver.
has one cable, 17-01818-01.

Figure 8-6:

The panel assembly

Control Panel Assembly Removal

msb-0068-88

8-12

VAX 6200 Options and Maintenance

REMOVAL

SRR

Conduct an orderly shutdown of the system.

Turn the control panel upper key switch to the Off position.
Pull the circuit breaker switch.

Unplug the machine. Open the front door.

Using a large Phillips screwdriver, remove the two #6-32 screws on the
right side of the panel.

Swing the unit out and to the left, and pull it toward you.
7.

Disconnect cable 17-01818-01 at the J1 20-pin connector.

REPLACEMENT

Connect the power cord to J1. The connection is not keyed, so look at
the pins and the receptacle and align them carefully as you connect the
cord.

Place the tabs on the left edge of the control panel in the slots on the
control assembly.

With the tabs inserted, swing the module into the opening.

Using a large Phillips screwdriver, insert and tighten two #6-32 screws.
5.

Close the front door.

Control Subsystem Assemblies

8-13

8.7 TK Tape Drive Specifications
The TK tape drive is located in the system control assembly in the

upper left front of the cabinet, part number TK50-AA.

Figure 8-7:

TK Tape Drive

ASSEMBLY

(flfl%&x N

TK50
TAPE DRIVE

‘Q\"(\SN

FRONT

ff//;fi*
7

msb-0069-88

8-14

VAX 6200 Options and Maintenance

Table 8-4:

TK Tape Drive Assembly Specifications

Parameter

Description

Part Number:

TK50-AA

Location:

Upper left front, housed in the system control assembly

Dimensions:

3.75" Wx 6.25" Hx 8.25" D

Weight:

5 1bs

Power:

One power cord 17-01817-01 to the system control assembly, which connects to 17-01814-01 leading to the TBKS50 adapter in
the VAXBI

Cable:

One signal cord 17-01813-01 from connector ]7 to the fil-

ter board

Service From:

Front of cabinet, door removed

Tools Required:

None

Subassemblies:

None

Diagnostics:

Load light on TK50 lights (red)

Control Subsystem Assemblies

8-15

8.8 TK Tape Drive Removal and Replacement
Working from the front of the cabinet, remove or replace the TK
using the spring clip attached to the control assembly unit on the
right. The TK has one power and one signal cable.

Figure 8-8:

TK Tape Drive Removal

msb-0070-88

8-16

VAX 6200 Options and Maintenance

REMOVAL

Turn the control panel upper key switch to the Off position.

Open the front door.

Push the spring clip to the right (see Figure 8-8).

Pull the TK out toward you.

Holding the unit in your hand, disconnect power cord 17-01817-01

Disconnect the signal cable 17-01813-01 at ]J7 on the TK50.

labeled P1.

REPLACEMENT

Reverse steps 1 through 6 above, being careful not to twist the signal
cable.

As you push the unit in, hold the signal cable flush to the left side of the
unit so that the service loop remains untangled and is installed smoothly.
Tuck the end loop in if it protrudes when the TK unit is installed.

Control Subsystem Assemblies

8-17

8.9 Filter Board and TOY Clock Battery

Specifications
The filter board and TOY clock battery are located on the inside
floor of the control assembly in the upper left front of the cabinet.
The battery is a 3-cell TOY clock battery, part number 12-19245-02,
and it powers the time-of-year clock on the XTC power sequencer
module. The filter board part number is 54-18547-01.

Figure 8-9:

Filter Board and TOY Clock Battery

2
|~

FRONT

|
~———

___

TOYCLO

BATTERY
FILTER

BOARD

msb-0071-88

8-18

VAX 6200 Options and Maintenance

Table 8-5:

Filter Board Specifications

Parameter

Description

Part Number:

54-18547-01

Location:

Inside of system control assembly

Dimensions:

31/4" x5 1/4"

Weight:

Less than 1 1b

Cable:

17-01812-01 to XMI backplane
17-01813-01 to the TK50 tape drive

Service From:

Inside of system control assembly

Tools Required:

Large Phillips screwdriver

Diagnostics:

TK lights

Table 8-6:

TOY Clock Battery Specifications

Parameter

Description

Part Number:

12-19245-02

Location:

Inside of system control assembly

Dimensions:

13/4" x11/2"

Weight:

Less than 11b

Power:

3-cell, 3.75V, .18mA

Cable:

Lead to XTC power sequencer

Service From:

Front of cabinet, door removed

Tools Required:

None

Diagnostics:

Time-of-year clock works

Control Subsystem Assemblies

8-19

8.10 Filter Board and TOY Clock Battery Removal
and Replacement
To remove or replace the filter board or the 3-cell time-of-year clock
battery, first remove the system control assembly (see Section 8.2).
Then remove the side panel of the system control assembly.

Figure 8-10:

Filter Board and TOY Clock Battery Removal

TOY CLOCK

|~ BATTERY

msb-0091-88

8-20

VAX 6200 Options and Maintenance

REMOVAL

Remove the system control assembly (see Section 8.2).

Using a large screwdriver, unscrew the side panel of the system control

Remove the screw from each corner of the filter board, using a large

Disconnect cable 17-01813-01 from ]7 at the back of the TK50 tape

assembly (see Figure 8-8).
screwdriver.
drive.

Disconnect cable 17-01812-01 which leads to the XMI backplane.
Working from the inside of the system control assembly, gently pull the
cable through the ferrite bead at the rear of the system control assembly.

Lift the filter board up and out of the system control assembly.

REPLACEMENT

Remove the system control assembly (see Section 8.2).

Reverse steps 2 through 6 above.

To remove the battery, disconnect the 2-pin battery lead at J1 on the XTC
power sequencer. Push the battery up and out of the plastic holder, pulling
the lead through the system control assembly shielding.

To replace the battery, snap it into the holder and connect the lead at J1 on
the XTC power sequencer.

Control Subsystem Assemblies

8-21

Chapter

Power Subsystem
This chapter gives specifications and removal and replacement procedures
for the power modules. Figure 9-1 shows a block diagram of the power
subsystem design.

Sections in this chapter include:
Power Subsystem Design
Power Specifications

Power Modules
H7214 Power Regulator

H7214 Power Regulator Removal and Replacement
H7215 Power Regulator

H7215 Power Regulator Removal and Replacement
H7206 Power and Logic Unit

H7206 Power and Logic Unit Removal and Replacement
H7206 Fan Removal and Replacement

H405 AC Power Controller

H405 AC Power Controller Removal and Replacement
50 Hz Transformer

50 Hz Transformer Removal and Replacement
H7231-N Battery Backup Unit

H7231-N Battery Backup Unit Removal and Replacement
H7231-N Battery Backup Unit Installation

Power Subsystem

9-1

9.1

Power Subsystem Design
Figure 9-1 is a block diagram of the VAX 6200 power subsystem.

Figure 9-1:

Power Subsystem Design

Blower
24V DC

380V AC

or 416V AC input power
is reduced to 208 V AC with an

BLOWER FAULT
—_—

Fan <

optional autotransformer

24V Dc—l

H405

AC
3-Phase

Power

trol-

Con-

ler

—

|—|

|—

p—

Power

Board

P——

—
L=

EE—
—

DEC Power Bus —,

Temperature Sensor
Optional H7231 300V DC BBU

—_
P.

300V DC

-5V

20 A

-2V

T A

+12V

4 A

H7216

-12V 2.5 A

To XMI
Card Cage

5V 120 A

13.6V 0.5 A

SVBB 120 A
13.5V 0.5 A

H7214

300V DC

-6V

20 A

-2V

T A

4 A
-12V 2.5 A

+12V

HT2156

To VAXBI ——

Card Cages

SVBB

} 120 A

13.5V 0.5 A

9-2

VAX 6200 Options and Maintenance

H7214

Control Panel Key Switch

H7206 Power

XTC

and Logic Unit

- BULK/AC Sense —)
~ON CMD L

Logic Board

—

+14V DC

— SYNC

I
—-STANDBY CMD L

-~ +14V SHUTDOWN -}

|
l— DEC Power Bus

—

— SYNC B

—— AIR FAULT —

~——— INHIBIT —

+14
V DC
OVERTEMP

INHIBIT

SYNC A1l ———
CH 2 0K

77T

CH 2 INHIBIT

+14 V DC

3 OK
CH

11 11111

CHIOKJ|

SYNC A 3

SYNC A 2

+14 V DC

CH 3

INHIBIT

CH
4 OK
+14

OVERTEMP 2

CH 4 INHIBIT

SYNC B 4
CH
5 0K

TTIT1

CABINET INTERLOCK 1 INHIBIT

SYNC B §

+14 V DC

CH 5 INHIBIT
CABINET INTERLOCK 2 INHIBIT

msb-0072-88

Power Subsystem

9-3

9.2 Power Specifications
Figure 9-2 shows the physical arrangement of the power regulators
in the cabinet. Table 9-1 and Table 9-2 list the DC output voltages
the power regulators supply to the XMI and VAXBI card cages. AC
output specifications are listed in Table 9-3.

Figure 9-2:

DC Power Regulators in Cabinet (Rear View)
XM!

VAXBI

o o0

o O

D
O

= —

o O

e —

D o0

H7215

H7214

H7215

H7214
msb-0073-88

Table 9-1:

XMI Side—DC Output Specifications

DC Voltage

Current

+12V

4 A

For:

From Regulator(s):

RS-232 and TK tape drive

supply
-12v

25A

RS-232 supply

-5V

20 A

ECL logic

-2V

ECL logic

+5V

120 A

Logic supply

+13.5V

05A

Ethernet transceiver B

+5VBB

120 A

Memory supply

+13.5V

05A

Ethernet transceiver C

9-4

VAX 6200 Options and Maintenance

Table 9-2:

VAXBI Side—DC Output Specifications

DC Voltage !

Current

+12V

4 A

-12v

25A

RS-232 supply

-5V

20 A

ECL logic

-2V

ECL logic

+5V

120 A

Logic supply

+5VBB

120 A

Memory supply

+13.5V

05A

Ethernet transceiver E

For:

From Regulator(s):

RS-232 and TK tape drive

supply

1The H7206 power and logic unit supplies 24VDC at 0-4 amps to the blowers and airflow sensor.

Table 9-3:

AC Output Specifications

Type

For:

Two switched external IEC 320 recepta-

Reserved

One unswitched internal 1IEC 320 recep-

H7231-N battery backup option

cles fused at 10 amps !
tacle fused at 2 amps

1These receptacles are not included on some systems.

Power Subsystem

9-5

9.3 Power Modules
Most of the power modules can be seen from the rear of the
cabinet.

Figure 9-3:

Location of Power Modules (Rear View)

H7214 & H7215 //////
POWER —

REGULATORS

—

;
H7231 BATTERY

BACKUP UNIT

m—

L L

H7206 POWER

AND LOGIC UNIT

H405 AC POWER
CONTROLLER

msb-0074-88

9-6

VAX 6200 Options and Maintenance

Power modules are listed in Table 9-4.

Table 9-4:

Power Modules
60 Hz
System

50 Hz
System

Part
Number

Module

H7214

Power regulator

H7215

Power regulator

H7206

Power and logic unit

H7231-N

Battery backup unit

H405-E

AC power controller

H405-F

AC power controller

16-28393-01

50 Hz transformer

Quantity

Power Subsystem

9-7

9.4 H7214 Power Regulator
The system has three H7214 power regulators; two supply power
and one supplies power to the VAXBI
backplane. Each power regulator can also supply +13.5V to an
Ethernet transceiver. The regulators are located in the upper part
of the cabinet.
to the XMI backplane

Figure 9-4:

H7214 Power Regulators

Y
Y

H7214
POWER —
REGULATORS

msb-0075-88

9-8

VAX 6200 Options and Maintenance

Table 9-5:

H7214 Power Regulator Specifications

Parameter

Description

Part Number:

H7214

Location:

Upper part of cabinet

Dimensions:

6" Hx45" Wx12" D

Weight:

8 Ibs

Cables for XMI:

17-01497-02 control/status cable, 34-pin connector
17-01446-01 bulk power cable
17-01525-01 remote sense cable

+13.5V output cable, 2-pin connector (part of Ethernet cable 17-

01496-01)

+5VDC

and

-5VDC

leads

attached

XMI

bus

bar

assem-

bly

Cables for VAXBI:

17-01666-01 control/status cable, 24-pin connector, to H7206 power
and logic unit

17-01447-01 bulk power cable to H7206 power and logic unit
17-01525-01 remote sense cable to VAXBI bus bar

+13.5V output cable, 2-pin Mate-N-Lok connector (part of 17-01496-

01 Ethernet cable)

+5VDC and -5VDC leads attached to VAXBI bus bar assem-

bly
Service From:

Front and rear of cabinet, doors open

Tools Required:

Flat screwdriver

Diagnostics:

Green LED lights when +5V output is within regulation

The H7214 power regulator develops two regulated DC outputs: +5V used
to power system logic and memory loads, and the +13.5V, available for an
Ethernet transceiver.

Each H7214 has one green LED that is visible from the rear of cabinet. The
LED lights to indicate that the +5V output is properly regulated.

NOTE: The green LED does not indicate the status of the +13.5V Ethernet oufput.

The power regulator consists of a single printed circuit board mounted on
a right-angle bracket. The bracket has guiding edges for use when inserting
the regulator into the cabinet.

Power Subsystem

9-9

9.5 H7214 Power Regulator Removal and
Replacement
Working mainly from the rear of the cabinet, remove or replace the
H7214 power regulator using a flat screwdriver. The assembly has
five screws, one control/status cable, one remote sense cable, and
two power bus bar leads.
WARNING: High voltages are present in the H7214 power regulator. After
power has been removed, wait at least 2 minutes before working on the unit.

H7214 Power Regulator Removal

- Figure 9-5:

msb-0076-88

9-10

VAX 6200 Options and Maintenance

REMOVAL

Perform an orderly shutdown of the system.

Turn the upper key switch on the front control panel to the Off position.

Pull the main circuit breaker on the AC power controller to the Off
position.

Open the front and rear doors.

At the front of the cabinet, disconnect the bulk power cord by releasing
the fastener clip and pulling.
On the XMI side, cable 17-01446-01
is disconnected from J3.
On the VAXBI side, cable 17-01447-01 is
disconnected from J3.

At the front of the cabinet, loosen the one captive screw securing the
regulator.

At the

Disconnect the 17-01525-01 remote sense cable from J4 .

rear of the cabinet, disconnect the control/status cable by
releasing the fastener clip and pulling (see Figure 9-5). On the XMI
side, cable 17-01497-02 is disconnected from J1. On the VAXBI side,
cable 17-01666-01 is disconnected from ]1.

Disconnect the +13.5V cord [part of 17-01496-01] from J2 (if Ethernet

connection is present).
10. Disconnect the bus bar leads by removing the four screws.

11. Work the bus bar leads down into the XMI service area.

12. Using a flat screwdriver, loosen the four slotted screws.
13. Support the bottom of the H7214 as you pull it from the cabinet.

REPLACEMENT

Reverse steps 1 through 13 above.
NOTE: Make sure that the lugs connecting the bus bar leads do not contact the
sheet metal bracket around the mounting points.
The H7214 ground reference wire is connected to the regulator’s circuit board and

return bus bar by a screw and washer. Make sure the wire is intact and properly
connected.

Tuck the wire out of the way when inserting the regulator into the

machine.

Power Subsystem

9-11

9.6 H7215 Power Regulator

The system has two H7215 power regulators, one for the XMI card
cage and one for the VAXBI card cages. They are located in the
upper part of the cabinet, along with the H7214 power regulators.

Figure 9-6:

H7215 Power Regulators

H7215 POWER

—

TIPS

REGULATORS

msb-0077-88

9-12

VAX 6200 Options and Maintenance

Table 9-6:

H7215 Power Regulator Specifications

Parameter

Description

Part Number:

H7215

Location:

Upper part of cabinet

Dimensions:

Weight:

5 1bs

Cables for XMI:

17-01446-01 bulk power cable from H7206, 3-pin connector

Hx3.5" Wx 12" D

17-01497-02 control/status cable from H7206,
10-pin connector for signals and 2-pin Mate-N-Lok connector for interlock switch

17-01566-01

power

distribution

cable

XMI,

32-pin

connec-

tor

Cables for VAXBI:

17-01447-01 bulk power cable for H7206, 3-pin connector

17-01666-01 control/status cable from H7206,
10-pin connector for signals and 2-pin Mate-N-Lok connector for the interlock switch

17-01523-01 power distribution cable to VAXBI,

32-pin connec-

tor

Service From:

Front and rear of cabinet, doors open

Tools Required:

Flat screwdriver

Diagnostics:

Green LED lights when voltages are in regulation

The H7215 develops four regulated DC output voltages: -5V and -2V for
ECL devices and +12V and -12V for communications devices and the TK
tape drive.

The H7215 has a thermal sensor. If the H7215 overheats on the XMI side,
an OVER TEMP signal is sent to the H7206 logic board. The H7206 will then
inhibit all regulator outputs to the XMI. The same is true for the regulators
on the VAXBI side.

Each regulator has a green LED that lights to indicate when all four output
voltages are in regulation. The LEDs are visible from the rear of the cabinet.

The power regulator consists of a single printed circuit board mounted on
a right-angle bracket. The bracket has guiding edges for use when inserting
the regulator into the system.

Power Subsystem

9-13

9.7 H7215 Power Regulator Removal and

Replacement
Working mainly from the rear of the cabinet, remove or replace
the H7215 power regulator using a flat screwdriver. The assembly
has three captive screws, one control/status cable, and two power

cables.
WARNING: High voltages are present in the H7215 power regulator. After
power has been removed, wait at least 2 minutes before working on the unit.

Figure 9-7:

H7215 Power Regulator Removal

msb-0078-88

9-14

VAX 6200 Options and Maintenance

REMOVAL

Perform an orderly shutdown of the system.

Turn the upper key switch on the front control panel to the Off position.
Pull the main circuit breaker on the AC power controller to the Off
position.

Open the front and rear doors.

Working from the rear of the cabinet, disconnect the control/status

cable by pulling out the 10-pin connector at J2 and the 2-pin MateN-Lok connector at INTERLOCK. On the XMI side, cable 17-01497-02
is disconnected. On the VAXBI side, cable 17-01666-01 is disconnected.

Remove the cable retainer and disconnect the power distribution cable
from J3. (Note that this 32-pin connector is keyed.) On the XMI side,
cable 17-01566-01 is disconnected. On the VAXBI side, cable 17-0152301 is disconnected.

At the front of the cabinet, disconnect the bulk power cable from J1.
This cable has a 3-pin Mate-N-Lok connector. On the XMI side, cable
17-01446-01 is disconnected. On the VAXBI side, cable 17-01447-01 is
disconnected.

At the front of the cabinet, loosen the one captive screw securing the

H7215.

At the rear of the cabinet, use a flat screwdriver to loosen the screws at
the top and bottom of the power regulator.

10. Support the bottom of the H7215 as you pull it out of the cabinet.

REPLACEMENT

Reverse steps 1 through 10 above.

Be sure to position the power regulator on the guide rail when you insert
it into the cage.

Note the gray dot on the control/status cable connector. When installing
this cable, make sure the dot is on the top side.

Power Subsystem

9-15

9.8 H7206 Power and Logic Unit
9.8.1 Specifications

The H7206 power and logic unit is located in the lower right rear of
the cabinet, just above the H405 AC power controller.

NOTE:

The early version of the H7206 power and logic unit does not

support battery backup operation.

Figure 9-8:

H7206 Power and Logic Unit

7724 | 17206 POWER
74 |

ANDLOGIC UNIT

msb-0079-88

9-16

VAX 6200 Options and Maintenance

Table 9-7:

H7206 Power and Logic Unit Specifications

Parameter

Description

Part Number:

H7206

Location:

Lower right rear of cabinet, just above the H405 AC power controller

Dimensions:

5"Hx5"Wx205"D

Weight:

13 1bs

Cables:

17-00962-01 to battery backup unit
70-20369-2F to battery backup unit
17-01498-01 to XTC module

17-01549-01

DEC

power

bus

cable

H405

power

con-

troller

17-01569-01 AC/DC OK to DWMBA/B module
17-01666-01 control/status to regulators on VAXBI side
17-01497-02 control/status to regulators on XMI side
17-01447-01 bulk power to regulators on VAXBI side
17-01446-01 bulk power to regulators on XMI side
17-01570-01 power to front and rear blowers
17-01501-01 input from AC power controller
Service From:

Rear of cabinet, door open

Tools Required:

Flat screwdriver

Diagnostics:

AC input and power regulator indicator lights will light

The H7206 power and logic unit contains the fan/power and logic modules.
The fan/power module functions are:

AC to 300VDC conversion

24VDC to blowers

DEC power bus logic

Control panel key switch interface

The logic module functions are:

AC OK and DC OK control for system

Battery backup unit control logic

Door interlock logic

Power Subsystem

9-17

9.8.2 H7206 Power and Logic Unit Switches and

Indicators

The H7206 power and logic unit has three indicators and one reset

switch, visible from the front of the cabinet.

Figure 9-9:

H7206 Power and Logic Unit Switches and Indicators

14V BIAS

O‘J / SHUTDOWN
LED

O‘J'// LED

RESET

|
—— SWITCH

J13

msb-0080-88

9-18

VAX 6200 Options and Maintenance

The power and logic unit consists of an AC to DC rectifier and filter, a
fan/power module, and a logic module. The unit has three indicator LEDs
and one reset switch.
The green +13V bias LED lights to indicate when the bias supply on the

fan/power module is working.
WARNING: When the + 13V bias LED is unlit, do not assume that the 300V bulk

supply is deenergized.

This LED does not indicate the presence or absence of the

300V bulk supply.
The green +14V bias LED lights to indicate that the bias supply is available

to the logic board.

When lit, the red shutdown LED indicates a partial or complete power
shutdown.
Power shutdowns occur when there is an overtemperature
condition, the VAXBI or XMI access door is open, or airflow in the cabinet
is inadequate.
After determining the cause of the power shutdown, restart the system using
the front control panel. The red shutdown LED should go off when the
system is restarted.

Power Subsystem

9-19

9.9 H7206 Power and Logic Unit Removal and
Replacement
Remove or replace the H7206 power and logic unit using a flat
screwdriver. The assembly is held in place by six hex screws. There
are 11 cables. You may want to mark the cables when removing
them to simplify reconnection.
If you cannot disconnect some
cables from the front of the machine, remove the plenum to access
the connectors (see Section 10.7).

WARNING: High voltages are present in the H7206 power and logic unit.
After power has been removed, wait at least 2 minutes before working on
the unit.

Figure 9-10:

H7206 Power and Logic Unit Removal (Top View)

msb-0081-88

9-20

VAX 6200 Options and Maintenance

REMOVAL

Perform an orderly shutdown of the system.

Turn the upper key switch on the front control panel to the Off position.

Pull the main circuit breaker on the AC power controller to the Off
position.

Unplug the machine.

Open the front and rear doors.

Working from the front of the cabinet, disconnect the 17-01501-01 AC

Disconnect the 17-01549-01 DEC power bus cable from J13.

Disconnect the 17-01447-01 bulk power cable from J3 (see Figure 9-10).

Disconnect the 17-01446-01 bulk power cable from J4.

input cable from J1 (see Figure 9-9).

10. If the system has a H7231-N battery backup unit, disconnect the 7020396-2F cable from J6 and the 17-00962-01 cable from J12.
11. Disconnect the 17-01570-01 blower cable from J2.
12. Disconnect the 17-01498-01 XTC cable from ]J16.

13. Disconnect the 17-01569-01 AC/DC OK cable from J11.
14. Disconnect the 17-01666-01 control/status cable from J]9.
15. Disconnect the 17-01497-02 control/status cable from ]14.
16. Working from the rear of the cabinet, use a flat screwdriver to remove
the six hex screws.

17. Slide the unit out of the cabinet.

REPLACEMENT

Reverse steps 1 through 17 above.

When reinstalling the unit, make sure the locating tang on the front end
of the unit engages the locating stud on the front shelf.

Power Subsystem

9-21

9.10 H7206 Fan Removal and Replacement
Remove the H7206 power and logic unit’s top cover to access the
fan (part number 12-24701-06). There are six screws and one cable.

Use a flat screwdriver and a small Phillips screwdriver to remove
the fan.

H7206 Fan Removal

iI
1li
0il

(

NitbI

Figure 9-11:

msb-0082-88

9-22

VAX 6200 Options and Maintenance

REMOVAL

Remove the power and logic unit from the cabinet (see Section 9.9).

Using a flat screwdriver, remove the top cover by removing two screws

(see Figure 9-11).
3.

Disconnect the fan cable from J8 on the power/fan module by pulling
out the 2-pin connector.

Using a small Phillips screwdriver, remove the four screws that attach
the fan to the rear panel of the power and logic unit.

Remove the fan.

REPLACEMENT
Reverse steps 1 through 5 above.

The fan is powered by the same +24VDC used to run the main system
blowers. There is no fault indication if the fan stops.
When the cabinet doors are open, the power and logic unit depends entirely
on its internal fan for cooling. When working on the machine, make visual

checks to see if the fan is operating.

Power Subsystem

9-23

9.11

H405 AC Power Controller
The H405 AC power controller is located in the right lower rear

corner of the cabinet. The assembly comes in two models:
H405-E for 60 Hz systems and the H405-F for 50 Hz systems.

Figure 9-12:

H405 AC Power Controller
2

777777

R
781

— H405 AC
POWER CONTROLLER

msb-0083-88

9-24

VAX 6200 Options and Maintenance

the

Table 9-8:

H405 AC Power Controller Specifications

Parameter

Description

Part Number:

H405-E (60 Hz)

Location:

Lower right rear corner of cabinet

Dimensions:

120in.

Weight:

34 1bs

Cables:

H405-F (50 Hz)

Hx7.5in.

Wx 15in. D

17-01501-01 AC input to power and logic unit

17-01549-01 DEC power bus to H7206 power and logic unit
17-01815-01 to 50 Hz transformer
17-00365-03 to battery backup unit
17-00365-03 to disks
17-01844-01 to temperature sensor

‘Service From:

Rear of cabinet, door open

Tools Required:

Large Phillips and flat screwdrivers

Diagnostics:

Three power phase indicator lights on the H405-E will light to indicate that three-phase power is present at power-up

In 60 Hz systems, the H405-E AC power controller routes 3-phase, 208VAC
power to the output connector J2, used to connect power to the H7206 power
and logic unit. For 50 Hz systems, the same output is first routed to the
transformer (part number 16-28393-01) which lowers the phase voltages to
the required input range of the H7206.

The H405 AC power controller monitors the state of the cabinet thermostat
mounted at the top of the cabinet. The thermostat is a normally closed
thermal switch. The H405 also monitors the sense switch integral to the
main circuit breaker. The sense switch is normally closed when the circuit
breaker is in the On position.

If the thermal switch opens (overtemperature condition) or the sense switch
opens (main circuit breaker is Off), the H405 removes power from the
cabinet by open circuiting its output signal, Fail Safe Enable. The battery
backup unit, if included, is also disabled from delivering its 250VDC source
to the H7206 power and logic unit.

Power Subsystem

9-25

9.12 H405 AC Power Controller Removal and

Replacement

Working mainly from the rear of the cabinet, remove or replace the

H405 AC power controller using a large Phillips screwdriver. The
assembly has six captive screws and seven cables.

H405 AC Power Controller Removal

SQQ%QQQ

CSOQO O

Figure 9-13:

msb-0084-88

9-26

VAX 6200 Options and Maintenance

WARNING:

The H405 AC power controller is heavy.

Exercise-caution in lifting

and moving this unit.

REMOVAL

Perform an orderly shutdown of the system.

Turn the upper key switch on the front control panel to the Off position.

Pull the main circuit breaker on the AC power controller to the Off

position.
4.

Unplug the machine.
Push in the main circuit breaker and then pull it to the Off position to
remove any residual current.

Open the front and rear doors.
Working from the front of the cabinet, disconnect the 17-0150101 AC input cable from J2 by twisting the black connector ring

counterclockwise. If the system has a 50 Hz transformer, disconnect
the 17-01815-01 cable from ]2 (see Figure 9-13).
8.

Disconnect the 17-01549-01 DEC power bus cable from J1.
If the power system includes an H7231-N
disconnect the 17-00365-03 cable from J5.

battery

backup

unit,

10. Disconnect the 17-01844-01 temperature sensor cable from J]9.
11. Disconnect the 17-01833-01 fail safe enable cable from J6 and ]7.

12. At the rear of the cabinet, use a flat screwdriver to remove the two hex
screws at the top of the subassembly.

13. Using a large Phillips screwdriver, remove the six screws that hold the
AC power controller in place.
14. Pull the AC power controller toward you and remove it.

REPLACEMENT

Reverse steps 1 through 14 above.

NOTE: Route the 17-01844-01 and 17-01833-01 cables away from the transformer
(50 Hz systems only).

Power Subsystem

9-27

9.13 50 Hz Transformer
A transformer is required for 50 Hz systems. The transformer is
located on the floor of the cabinet, directly below the power and
logic unit.

Figure 9-14:

50 Hz Transformer (Front View)

TRANSFORMER -—-:%
msb-0085-88

9-28

' VAX 6200 Options and Maintenance

Table 9-9:

50 Hz Transformer Specifications

Parameter

Description

Part Number:

16-28393-01

Location:

Lower left front of cabinet

. Dimensions:

65"

Weight:

40 1bs

Cables:

18-01815-01 to H405-F AC power controller

Service From:

Front of cabinet, door open

‘Tools Required:

Flat screwdriver

Hx 6" Wx10" D

17-01501-01 to H7206 power and logic unit

Power Subsystem

9-29

9.14 50 Hz Transformer Removal and

Replacement
Working from the front of the cabinet, remove the transformer using

a flat screwdriver. The transformer has six screws and two power
cables.

Figure 9-15:

50 Hz Transformer Removal

INPUT

380 V

OUTPUT

Jg.J2

INPUT

OUTPUT

416 V

JJ2

o
J3

vV
380

INPUT

505y
OUTPUT
msb-0035-88

9-30

VAX 6200 Options and Maintenance

WARNING: To avoid high voltage shock, a round, threaded cap is provided to
cover the unused inlet connector. When replacing, rewiring, or reconnecting the
transformer, make sure that the cap is properly installed. The cap fits onto either
the 380V (J2) or the 416V (J1) inlet connector.

REMOVAL

Perform an orderly shutdown of the system.

Turn the upper key switch on the front control panel to the Off position.

Pull the main circuit breaker on the AC power controller to the Off
position.

Unplug the machine.

At the front of the cabinet, use a flat screwdriver to remove the six #1032 screws securing the sheet metal panel. This panel is located below
the power and logic unit.

Disconnect the 17-01815-01 power input cable from J1 (416V) or ]2
(380V). See Figure 9-15.

Disconnect the 17-01501-01 power output cable from ]3.
Remove the six screws that attach the transformer to the cabinet rails.
Remove the transformer.

REPLACEMENT

Reverse steps 1 through 9 above.

Power Subsystem

9-31

9.15 H7231-N Battery Backup Unit
The optional H7231-N battery backup unit supplies 300V power
to the system upon power failure. It is located in the horizontal

mounting space just below the system blower, and to the left of the
power and logic unit as viewed from the rear of the cabinet.

Figure 9-16:

H7231-N Battery Backup Unit

H7231 BATTERY
BACKUP UNIT

9-32

—W 7
/

VAX 6200 Options and Maintenance

Table 9-10:

H7231-N Battery Backup Unit Specifications

Parameter

Description

Part Number:

H7231-N

Location:

Lower third of cabinet, just below the system blower and next to the
H7206 power and logic unit

Dimensions:

3" Hx17" Wx 15" D

Weight:

35 Ibs

Cables:

17-00962-01 control /status cable to power and logic unit

17-01833-01 fail safe enable cable to AC power controller
70-20396-2F power cable to power and logic unit

17-00365-03 AC line to AC power controller
Service From:

Front and rear of cabinet, doors open

Tools Required:

3/8” nutdriver, flat screwdriver, pliers

Power Subsystem

9-33

9.16 H7231-N Battery Backup Unit Removal and
Replacement
Working from the front and rear of the cabinet, remove or replace

the H7231-N battery backup unit using a flat screwdriver.
assembly has two screws and four cables.

Figure 9-17:

H7231-N Battery Backup Unit Removal

/ J22

/ J20/~ J19 (NOT USED)

WL == T

S—
———

The

S &2 °

VOLTAGE SELECT\ \ J9

SWITCH

msb-0087-88

9-34

VAX 6200 Options and Maintenance

WARNING: The H7231-N battery backup unit is heavy. Exercise caution when
lifting or moving this unit.

REMOVAL

Perform an orderly shutdown of the system.

Turn the upper key switch on the front control panel to the Off position.

Pull the main circuit breaker on the AC power controller to the Off
position.

Unplug the machine.

Push in the main circuit breaker and then pull it to the Off position again
to remove any residual current.
Open the front and rear doors.

If necessary, remove the air intake grill and plenum to access the cable
connections (see Section 10.7).

Using a flat screwdriver, remove the two screws that attach the 17-00962-

Disconnect the 70-20396-2F power cable from J9.

01 control/status cable to J18.

Using a 3/8 inch

nutdriver, disconnect the ground strap.

10. Disconnect the 17-00365-03 AC line cable from ]J22.
11. Disconnect the 17-01833-01 fail safe enable cable from J20.

12. At the front of the cabinet, use a 3/8 inch nutdriver to remove the two
nuts that secure the battery backup unit in its mounting bracket.

13. Slide the battery backup unit toward you and lift it out of the mounting
bracket.

REPLACEMENT

Reverse steps 1 through 13 above.

Power Subsystem

9-35

9.17 H7231-N Battery Backup Unit Installation
The H7231-N battery backup unit is a field-installable option. The

unit, mounting bracket, hardware, and cables are included in the

H7231-P Installation Kit. First connect and route the four cables.
Then install the mounting bracket.
Finally, install the battery
backup unit and set the two voltage select switches.

NOTE: Before installing the battery backup unit, verify that the system’s

H7206 power and logic unit supports battery backup operation by checking

the unit’s revision level. The revision level should be E6 or above.

Battery Backup Unit Cable Installation

0000 000Y

“Sm—

OCoelooocoo0oocoo0oo
o

Figure 9-18:

msb-0088-88

9-36

VAX 6200 Options and Maintenance

9.17.1 Install the Battery Backup Unit Cables
1.

Perform an orderly shutdown of the system.

Turn the upper key switch on the front control panel to the Off position.
Pull the main circuit breaker on the AC power controller to the Off
position.

Unplug the machine.

Push in the main circuit breaker and then pull it toward you to remove

any residual current.

Open the front and rear doors.

Connect the 17-00365-03 AC input cable to J5 on the H405 AC power
controller (see Figure 9-13).

Connect the 17-00962-01 cable to J12 on the H7206 power and logic unit.
Connect the 70-20396-2F cable to J6 on the H7206 power and logic unit.
NOTE: Be sure that this cable is never connected to any unit other than the

H7206 or the battery backup unit.
10.

Find the fail safe enable cable. It is shipped with the system and is
located underneath the H405 AC power controller. Connect the 1701833-01 fail safe enable cable to J6 and J7 on the H405 AC power
controller.

11.

Route the cables through the clearance space at the right of the H7206

12.

Install the 8 Tinnerman nuts as shown in Figure 9-18. Four nuts are
installed on the front rails, two nuts on each side rail.

power and logic unit (see Figure 9-18).

Power Subsystem

9-37

9.17.2 Install the Mounting Bracket
1.

At the front
Figure 9-19).

of the

cabinet,

slide

the

mounting bracket

Secure the mounting bracket by installing four Phillips screws

into the

Tinnerman nuts on the front rails. Do not tighten.

(see

Install the two long Phillips screws on the left side rail.
At the rear of the cabinet, install the two spacers and two flathead screws
behind the right side rail. Use pliers to line the spacer up behind
the
rail so that you can install the flathead screw through the spacer,
rail,
and Tinnerman nut. Then tighten all screws.

Figure 9-19:

Mounting Bracket Installation

L
gy g

DDLDODOD0D0%%%%

r:) 8
]
-

-!‘

msb-0089-88

9-38

VAX 6200 Options and Maintenance

9.17.3 Install the Unit
1.

At the front of the cabinet, slide the battery backup unit into the

mounting bracket (see Figure 9-20).

Using a 3/8 inch nutdriver, install the two nuts on the mounting bracket
studs to secure the unit.

Set the voltage select switch. For 60 Hz systems, set the switch to the

right (115V). For 50 Hz systems, set the switch to the left (230V).

At the rear of the cabinet, remove the plenum (see Section 10.7).

Using a flat screwdriver, install the two screws that attach the 17-0096201 cable to J18 (see Figure 9-17).

Connect the 70-20396-2F cable to J9. Using a 3/8 inch nutdriver, connect
the cable’s ground strap.
7.

Connect the 17-00365-03 cable to J22.

Connect the 17-01833-01 cable to j20.

Set the voltage select switch as in step 3.

10. Replace the plenum.
11. Shut the doors.

Figure 9-20:

Battery Backup Unit Installation

msb-0090-88

Power Subsystem

9-39

Chapter

Cabinet and Airflow Subsystem
This chapter describes the field-replaceable units of the cabinet and units
that monitor and control the interior environment of the cabinet. Sections
include:

Door and Filter Removal and Replacement (Front)
Door and Filter Removal and Replacement (Rear)

Airflow Sensor Removal and Replacement

Temperature Sensor Removal and Replacement

Blower Assembly Specifications

Blower Assembly, Front and Rear

Blower Assembly Removal and Replacement

Side Panel Removal

Cabinet and Airflow Subsystem

10-1

10.1

Door and Filter Removal and Replacem

ent

(Front)

Both the front and rear doors have air filters

that need to be replaced

periodically. Figure 10-1 shows the inside
of the front

Figure 10~1:

Front Door (Inside View)

l.fi.‘-‘.‘-'.‘-‘-'-‘_'. ._'-‘::-:-:-::-:.::-'.-‘.-‘_.. - -"-'-'.‘-‘-‘.‘."-'.I
0

FE:

e
FrEeE’

ot ———

[¢]

o |

oI es
it

Lesmrersemem=s

msb-0092-88

10-2

VAX 6200 Options and Maintenance

door.

Table 10-1:

Front Cabinet Door and Air Filter Specifications

Parameter

Description

Front Door:

70-24623-01

Dimensions:

28.25"

Weight:

31 1bs

Air Filters:

12-11255-23 — 17.5" Wx 9" D
12-11255-24 — 18.5” W x 12.5" D (air intake)

Wx 56" D

12-11255-25 — 18.5” W x 10" D

Tools Required:

3/8" and 11/32” nutdrivers

REMOVAL OF DOORS

Remove the ground strap, which is attached to the front door, using a
3/8 inch nutdriver.

Pull up the pin in the top hinge and lock in place.

Pull up and hold the pin in the bottom hinge as you lift the door up to
remove it from the cabinet.
REPLACEMENT OF DOORS

Put the door into position at the hinges and then release the lock holding
the top pin.

Pull up the bottom pin and release it to secure the door.

REMOVAL AND REPLACEMENT OF AIR FILTERS
It is especially important that the filters in the center of the front door and
at the bottom of the rear door be clean. These filters cover the air intake
area.

Three filters are covered with a grill that must be removed to replace the air
filter.
1.

Use an 11/32 inch nutdriver to remove the grill.

Pull off the old filter and stick on the new one.

Reinstall the grills (they protect against electromagnetic interference).

Cabinet and Airflow Subsystem

10-3

10.2 Door and Filter Removal and Replacement

(Rear)

Figure 10-2 shows the inside of the rear door.

Figure 10-2:

Rear Door (Inside View)

msb-0093-88

10-4

VAX 6200 Options and Maintenance

Table 10-2:

Rear Cabinet Door and Air Filter Specifications

Parameter

Description

Rear Door:

70-24124-01

Dimensions:

28" Wx 415" D

Weight:

20 Ibs

Air Filters:

12-11255-17 — 26” W x 15.5” D (air intake)

Tools Required:

3/8” and 11/32" nutdrivers

12-11255-22 — 22"

W x 9.5" D

For the removal and replacement procedures for the rear door and filters,
see Section 10.1.

Cabinet and Airflow Subsystem

10-5

10.3 Airflow Sensor Removal and Replacement
The airflow sensor (see Figure 10-3) is mounted inside the cabinet
above the XMI power regulators, to the left of the temperature
sensor.

The

airflow

sensor

regulates

the

two

blowers

and

shuts down the power regulators if the airflow in the cabinet is
inadequate.

Airflow Sensor (Front View)

;

Figure 10-3:

'
msb-0094-88

Table 10-3:

Airflow Sensor Specifications

Parameter

Description

Part Number:

12-25024-11

Location:

From the front, the sensor is above the outlet grill of the XMI power
regulators and to the left of the temperature sensor.

Signal Cable:

17-01570-01, to both blowers and to the H7206 PAL unit

Power:

+24 V (common to main blowers)

Service From:

Front of the cabinet, doors open

Tools Required:

Large and small Phillips screwdrivers

Wire clipper

10-6

VAX 6200 Options and Maintenance

OPERATION

If the airflow sensor detects inadequate airflow, it signals the H7206 power
and logic (PAL) unit. After 30 seconds the H7206 unit asserts the Interlock
Inhibit signals to the XMI and VAXBI power regulators. The red LED on
the H7206 PAL unit lights. The AC power is not affected.
Turn the system off at the control panel as you investigate the cause of the

problem. To restart the system, use the front control panel. If the red
LED on the H7206 stays on when one side of the system powers up, the
problem may be an Interlock switch or the overtemperature switch in the
H7215 regulator. If, however, both sides stay down, check the bias LEDs.
If they are lit, check the airflow sensor signal. If it is low, indicating normal
operating conditions, the H7206 PAL unit is the problem and needs to be
replaced.

REMOVAL

Unplug at the connector.

Clip and remove the tiewrap around the sensor.

Push down on top of the metal bracket to pop out one side so that you
can remove the sensor. Leave the bracket in the grillwork or mark the
exact location so that the new sensor is placed in the same spot.

REPLACEMENT

Slip the new sensor in under the bracket and push the end of the bracket

back into the grill.

Secure in place with a tiewrap (90-07031-00).
Reattach at the connector.

Cabinet and Airflow Subsystem

10-7

10.4 Temperature Sensor Removal and
Replacement
The temperature sensor (see Figure 10-4) is mounted inside the
cabinet above the XMI power regulators, to the right of the airflow
sensor. When the system overheats, the sensor signals the H405 AC
power controller to shut down the system.

Temperature Sensor (Front View)

Figure 10-4:

10-8

VAX 6200 Options and Maintenance

msb-0095-88

Table 10-4:
Parameter

Part Number:
Location:

Temperature Sensor Specifications
Description

17-01844-01, sensor and cable to ]9 onr the H405 power con-

troller

From the front, the sensor is above the outlet grill of the XMl power reg-

ulators and to the right of the airflow sensor.

Power:

H405 power controller

Service From:

Inside the rear door

Tools Required:

Small Phillips screwdriver

OPERATION

When the temperature sensor reaches its threshold, it signals the H405 AC
power controller to cut off all power. When the sensor cools down, the
power is restored automatically.

REMOVAL AND REPLACEMENT

The temperature sensor is permanently attached to the cable that goes to
the power controller.

To remove a temperature sensor:

Unplug the cable at J9 on the H405 power controller.

Pull the cable up through the system.

With a Phillips screwdriver remove the screw from the bracket that holds
the sensor.

Install the new sensor in the same place.

Cabinet and Airflow Subsystem

10-9

10.5 Blower Assembly Specifications
Two blowers are located in the center of the cabinet,
just below
the XMI and VAXBI card cages. The blowers draw the
air into
the cabinet and direct it up through the card cages and
the power

regulators.

The

mounting plate

with the

four captive

screws

(see Figure 10-5) is part of the blower assembly (12-27848-01).

Blower Assembly

——

———

—_)

Figure 10-5:

—

O msiay o (el
s

——7—

N6 o aom e

JL)

[

i
msb-0096-88

10-10

VAX 6200 Options and Maintenance

Table 10-5:

Blower Assembly Specifications

Parameter

Description

Part Number:

12-27848-01; two used

Location:

Front and rear of the lower cabinet area

Dimensions:

15" x 15"

Weight:

9 1bs

Power:

+24V

Signal Cable:

17-01570-01,

the

H7206

PAL

unit

and

the

airflow

sen-

sor

Service From:

Front and rear of cabinet, doors open

Tools Required:

Large Phillips and 1/4” flat screwdrivers

Each system has two blowers to provide the required airflow within the
cabinet. If the airflow sensor detects inadequate airflow, it signals the H7206
power and logic (PAL) unit. After 30 seconds the H7206 unit asserts the
Interlock Inhibit signals to the XMI and VAXBI power regulators. The red
LED on the H7206 PAL unit lights. The AC power is not affected.

Cabinet and Airflow Subsystem

10-11

10.6 Blower Assembly, Front and Rear
Figure 10-6 and Figure 10-7 show the two blowers, each with
their protective grillwork in place.
Although the mounting
of the two units is somewhat different, once you remove the

protective

grillwork from the rear blower assembly the
removal procedures apply to both blowers.

Front Blower

N% i

Figure 10-6:

same

FRONT

[

| u\\‘it

‘}j

EREER T

|
[

' \![\

}

—

%bw L]

L
1AV
LL:@ELI B

msb-0097-88

10-12

VAX 6200 Options and Maintenance

Te.

le]

I@I

T |

Rear Blower

_le!

Figure 10-7:

msb-0098-88

Cabinet and Airflow Subsystem

10-13

10.7 Blower Assembly Removal and Replacement

To remove the rear blower, you must first remove the protective
grilwork. You do not need to remove the grillwork from in front

of the blower in front, as it can be lifted off with the plenum. You
next remove the plenum; then you can remove the blower.

Blower Assembly Removal

171

oof |@

| [®e]

(3]

@% ?E.H? J

=7 |0]

Figure 10-8:

msb-0099-88

10-14

VAX 6200 Options and Maintenance

AR
T i A

REMOVAL

Perform an orderly shutdown of the system.

Turn the upper key switch on the front control panel to the Off position.

Pull the circuit breaker on the AC power controller to the Off position.
Unplug the machine.

Open the front or rear door to access the blower to be replaced.
Figure 10-7 shows the four captive screws that must be loosened to lift
off the metal grill in front of the rear blower. Figure 10-8 shows the rear
blower with the metal grill removed.
The plenum must now be lifted off away from the blower.

Unplug the power cord and push it through the hole on the left
panel.

Remove the two #10-32 screws inside the top panel and one screw
at the left on the panel at the back of the plenum.

Shift the plenum to the left and lift it off from the four screws.

REPLACEMENT

To replace the blower, reverse the steps above. Note that the blower has
two metal tabs at the bottom that slide into slots in the cabinet.

Cabinet and Airflow Subsystem

10-15

10.8 Side Panel Removal
The left side panel of the system cabinet is detachable, so that the
cabinet can be bolted to an expander cabinet (see Figure 10-9).

Side Panel Removal

\_J\. |

Figure 10-9:

/‘ /\
"

—

AN\

e
F23t

f—

]

msb-0041-88

10-16

VAX 6200 Options and Maintenance

Table 10-6:

Side Panel Specifications

Parameter

Description

Part Number:

70-19485-00

Location:

From the front, the panel on the right side is removable.

Dimensions:

30" Wx 57" Hx3/4" D

Weight:

34.25 1bs

Service From:

Right side of cabinet, as viewed from the front

Tools Required:

7116” socket wrench

For most configurations, expansion will be to the right of the system cabinet.
To prepare for expansion, remove the side panel of the system cabinet as
follows:

Open the front and rear doors of the system cabinet and remove the

Using a 7/16 inch socket wrench, remove the system cabinet’s side panel
by removing the 12 kepnuts (see Figure 10-9). Carefully lift the panel
when removing it so as not to damage the threaded bolts. Do not remove

doors by lifting them off their hinges.

the bolts.

Before attaching another cabinet, make sure the braided RFI shielding
and securing clips are not damaged or missing. Check that any flexible
spring-strip type RFI gaskets are present in all the mounting holes.

The VAX 6200 Installation Guide describes how to attach the system cabinet
to a VAXBI expander cabinet.

Cabinet and Airflow Subsystem

10-17

Appendix A

Cable List
The following table lists the replaceable cables in the system.

Table A-1:

Cable List

Part Number

Qty

Description

17-00365-03

H405 to battery backup unit and disks

17-00849-08

18" DWMBA/B to DWMBA/B AC/DC OK

17-00962-01

H7206 to H7231 battery backup unit (optional)

17-01149-01

Boot enable jumper for DEBNA module

17-01445-01

Power to logic board internal to H7206

17-01446-01

H7206 to three regulators’ jumps (XMI side)

17-01447-01

H7206 to two regulators’ jumps (VAXBI side)

17-01458-02

VAXBI ground strap

17-01496-01

VAXBI to Ethernet port and H7214

17-01497-02

H7206 to XMI H7215 and H7214, 72 in. long

17-01498-01

XTC to H7206 signal, 14-pin

17-01499-01

Interlock cable

17-01501-01

H405 to H7206

17-01523-01

H7215 regulator to VAXBIs £12V

17-01525-01

H7214 regulator to bus bars (+5V remote sense)

17-01549-01

H7206 to H405 DEC power bus

17-01566-01

H7215 regulator to the XMI

17-01567-01

XTC to console port, 10-pin ribbon

17-01568-02

XMI to XTC (XTC power) 20-pin ribbon, 56 in. long

Cable List

A-1

Table A-1 (Cont.):

Cable List

Part Number

Qty

Description

17-01569-01

DWMBA to H7206 power OK signals

17-01570-01

H7206 to both blowers and airflow sensor

17-01661-01

Jumper assembly (on H7214 regulator output)

17-01662-02

XMI ground strap

17-01663-01

Fuse cable (H7214 BTO)

17-01666-01

H7206 to VAXBI regulators’ signal, 60 in. long

17-01812-01

XMI to filter board in system control assembly

17-01813-01

TBKS50 board to system

control

asembly

TK signal

swap-

per

17-01815-01

H405 to transformer cable (240V systems only)

17-01816-01

XMI to system control assembly 20- to 26-pin

17-01817-01

TK to system control assembly 26-pin ribbon

17-01833-01

Fail safe enable cable, H7231 battery backup unit to H405 and

the XMl
17-01844-01

Temperature sensor cable, to H405

17-01897-01

15" DWMBA/A to DWMBA/B connector,
VAXBI expander cabinet

17-01897-02

7" DWMBA/A to DWMBA/B cables, from XMI slot E

17-01897-03

25" DWMBA/A to DWMBA/B cables, from XMI slot D

17-01920-01

AC;IDC OK cable,

system VAXBI to VAXBI expander cabi-

70-20369-2F

A-2

system VAXBI to

H7206 to battery backup unit

VAX 6200 Options and Maintenance

Appendix

Troubleshooting the System
Table B-1 gives a checklist for troubleshooting a system that will not powerup and boot. For additional information on troubleshooting, see the following:

Chapter 2, Diagnostics

Section 3.6, KA62A Self-Test Results: Console Display

Section 3.7, KA62A Self-Test Results: Module LEDs

Section 3.8, ROM-Based Diagnostics

Section 3.9, KA62A Self-Test RBD

Section 3.10, CPU/Memory Test — RBD 1

Section 3.12, VDS Diagnostics

Section 4.2, MS62A Configuration Rules

Section 4.8, Memory Self-Test

Section 4.9, Memory Self-Test Errors

Section 4.10, Memory RBDs

Section 4.13, MS62A Memory Installation

Section 5.4, DWMBA ROM-Based Diagnostics Tests

Section 6.6, XMI Troubleshooting

Section 7.6, VAXBI Troubleshooting

VAX 6200 Owner’s Manual
Chapter 3, Controls and Indicators
Chapter 6, Troubleshooting
Appendix B, Console Error Messages

Troubleshooting the System

B-1

Cold start

Table B-1:

An attempt by the primary processor to boot a new co
system.

Check
Control Panel 1
Check the AC po

Console Communications Area (CCA)

Segment of system main memory reserved by the cons
Console mode

A mode of operation allowing a console terminal opera
with nodes on the XMI bus.
Check the circuit

DEBNA

VAXBI adapter; Ethernet port interface.
Check the H7206

DHB32

VAXBI adapter communication device; supports up to 1
DMB32

Check the green
tors.

VAXBI adapter interface for 8-channel asynchronous c
terminals with one synchronous channel for a line print
DRB32

VAXBI adapter; parallel port.
System Shuts O
30 Seconds Afte
Check the airflon
Check the blower

DWMBA

The XMI-to-VAXBI adapter, a 2-module adapter; al
from VAXBI to the XMI, with total effective throughp
DWMBA/A is the module in the XMI card cage, and

VAXBI module. Every VAXBI on the VAX 6200 system m
adapter.
Interleaving memory

See Memory interleaving.
KDB50

VAXBI adapter for DSA disks; enables connection to di
Memory interleaving

Method to optimize memory access time; VAX 620(
automatically interleaves the memories in the system |
access time, unless the SET MEMORY command is us:
interleave or no interleave (which would result in se:
memory module).
Interleaving causes an even nui
memories to operate in parallel.

B-2

VAX 6200 (

Glossary-2

Appendix

Troubleshooting the System
Table B-1 gives a checklist for troubleshooting a system that will not powerup and boot. For additional information on troubleshooting, see the following:

Chapter 2, Diagnostics

Section 3.6, KA62A Self-Test Results: Console Display

Section 3.7, KA62A Self-Test Results: Module LEDs

Section 3.8, ROM-Based Diagnostics

Section 3.9, KA62A Self-Test RBD

Section 3.10, CPU/Memory Test — RBD 1

Section 3.12, VDS Diagnostics

Section 4.2, MS62A Configuration Rules

Section 4.8, Memory Self-Test

Section 4.9, Memory Self-Test Errors

Section 4.10, Memory RBDs

Section 4.13, MS62A Memory Installation

Section 5.4, DWMBA ROM-Based Diagnostics Tests

Section 6.6, XMI Troubleshooting

Section 7.6, VAXBI Troubleshooting

VAX 6200 Owner’s Manual
Chapter 3, Controls and Indicators
Chapter 6, Troubleshooting
Appendix B, Console Error Messages

Troubleshooting the System

B-1

Table B-1:

Troubleshooting Power in the System

Check

Comment