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EK-V48VB-SV-001

November 2000

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Document:	VAXstation 4000 VLC Service Information
Order Number:	EK-V48VB-SV
Revision:	001
Pages:	184
Original Filename:

OCR Text

VAXstation 4000 VLC
Service Information
Order Number: EK-V48VB-SV.001

<set_trademark_table>(no_list)

November 1991
<set_fcc_warning>(a)
© Digital Equipment Corporation 1990.
All Rights Reserved.
The following are trademarks of Digital Equipment Corporation: DEC, Digital, the
DIGITAL logo, Ethernet, ThinWire, VAX, VAXstation, and VMS.

This document was prepared using VAX DOCUMENT, Version 2.0.

Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 VAXstation 4000 VLC System Components
1.1
1.2
1.2.1
1.2.2
1.2.3
1.2.4
1.3
1.3.1
1.3.2
1.3.3
1.4
1.4.1
1.4.2
1.5
1.5.1
1.5.2
1.6
1.6.1
1.7
1.7.1
1.7.2
1.8
1.8.1
1.8.2
1.9
1.9.1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Central Processor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Processor Restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interrupt Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interrupt Sources and Ranking . . . . . . . . . . . . . . . . . . . . . . .
Interrupt Vector Generation . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Memory Requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DMA Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Translation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ROM Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Address ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graphics Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graphics Controller Screen Formats . . . . . . . . . . . . . . . . . . .
Graphics Controller Communication . . . . . . . . . . . . . . . . . . .
Serial Line Controller Feature . . . . . . . . . . . . . . . . . . . . . . . . . . .
Serial Line Controller Registers . . . . . . . . . . . . . . . . . . . . . . .
Time-of-Year Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TOY Clock Chip Register . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Controller Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Packet Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCSI Controller Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCSI Bus Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1
1–6
1–8
1–9
1–10
1–10
1–11
1–12
1–13
1–13
1–14
1–14
1–14
1–15
1–16
1–16
1–17
1–17
1–18
1–18
1–18
1–20
1–20
1–21
1–21
1–22

iii

2 VAXstation 4000 VLC System Configuration
2.1
VAXstation 4000 VLC System Box . . . . . . . . . . . . . . . . . . . . . . . .
2.1.1
Mass Storage Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1.2
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1.2.1
Power Supply Specifications . . . . . . . . . . . . . . . . . . . . . . .
2.1.3
VAXstation 4000 VLC System Controls . . . . . . . . . . . . . . . . .
2.1.4
System Box Internal Cabling . . . . . . . . . . . . . . . . . . . . . . . . .
2.1.5
VAXstation 4000 VLC I/O Panel . . . . . . . . . . . . . . . . . . . . . .
2.1.6
VAXstation 4000 VLC System Box Specifications . . . . . . . . . .

2–1
2–3
2–3
2–4
2–6
2–7
2–7
2–8

3 VAXstation 4000 VLC Firmware
3.1
3.2
3.3
3.4
3.5
3.5.1
3.5.2
3.6
3.6.1
3.6.2
3.7
3.8
3.9
3.9.1
3.9.2

Power-Up Initialization Code . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Console Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Extended Self Test Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Utilities Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System ROM Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System ROM Part Format . . . . . . . . . . . . . . . . . . . . . . . . . . .
System ROM Set Format . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration Table Overview . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Configuration Table . . . . . . . . . . . . . . . . . . . . . . . . . . .
Device Configuration Table . . . . . . . . . . . . . . . . . . . . . . . . . .
Driver Descriptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interfacing to Diagnostic Drivers . . . . . . . . . . . . . . . . . . . . . . . . .
Console Driver Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shared Console Interface Area . . . . . . . . . . . . . . . . . . . . . . . .
Console Port Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–2
3–3
3–4
3–5
3–6
3–6
3–7
3–9
3–10
3–11
3–15
3–17
3–19
3–20
3–22

4 Diagnostic Testing
4.1
Diagnostic Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.1
Power-Up Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.2
Displaying System Configuration . . . . . . . . . . . . . . . . . . . . . .
4.1.3
Displaying System Errors . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2
Running the Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.0.1
TOY/NVR Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.0.2
LCG Self Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.0.3
DZ Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.0.4
Cache Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.0.5
System Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.0.6
Floating Point Unit Self Test . . . . . . . . . . . . . . . . . . . . . .
4.2.0.7
Interval Timer Self Test . . . . . . . . . . . . . . . . . . . . . . . . . .

4–1
4–2
4–4
4–6
4–7
4–8
4–9
4–10
4–11
4–11
4–11
4–12

4.2.0.8
Memory Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.0.9
Network Interconnect Self Test . . . . . . . . . . . . . . . . . . . .
4.2.0.10
SCSI Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.0.11
Audio Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3
Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4
System Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.1
SET and SHOW Commands . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.1.1
SET and SHOW Command Syntax . . . . . . . . . . . . . . . . .
4.4.2
SET and SHOW Parameters . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2.1
BFLG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2.2
BOOT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2.3
CONFIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2.4
DEVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2.5
DIAGENV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2.6
ERROR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2.7
ETHER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2.8
FBOOT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2.9
HALT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2.10
KBD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2.11
MEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2.12
MOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2.13
PSE and PSWD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2.14
SCSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2.15
TRIGGER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2.16
VER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.3
Memory Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.3.1
DEPOSIT Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.3.2
EXAMINE Commands . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.3.3
FIND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.4
Processor Control Commands . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.4.1
BOOT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.4.2
CONTINUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.5
INITIALIZE and UNJAM . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.5.1
START . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.5.2
Miscellaneous Console Commands . . . . . . . . . . . . . . . . . .
4.4.5.3
HELP or ? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.5.4
LOGIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.5.5
REPEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–12
4–13
4–14
4–14
4–15
4–17
4–18
4–19
4–19
4–19
4–20
4–20
4–21
4–22
4–23
4–23
4–24
4–24
4–25
4–25
4–26
4–26
4–27
4–27
4–27
4–28
4–28
4–29
4–31
4–31
4–32
4–33
4–33
4–33
4–34
4–34
4–34
4–34

5 Removing and Replacing FRUs
5.1
Cautions and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2
VAXstation 4000 VLC FRUs . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3
System Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4
Mass Storage Drive Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4.1
Hard Disk Drive Replacement . . . . . . . . . . . . . . . . . . . . . . . .
5.5
Power Supply Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.5.1
Power Supply Replacement . . . . . . . . . . . . . . . . . . . . . . . . . .
5.6
Removing the LCG Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.7
Removing the System Module . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.7.1
System Module (CPU) Replacement . . . . . . . . . . . . . . . . . . . .
5.8
MS40 Memory Module Removal . . . . . . . . . . . . . . . . . . . . . . . . . .
5.8.0.1
MS40 Memory Module Replacement . . . . . . . . . . . . . . . .
5.9
Clearing the System Password . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.10
Testing the VAXstation 4000 VLC System . . . . . . . . . . . . . . . . . .
5.10.1
Restore the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.10.2
Test the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5–1
5–2
5–5
5–7
5–9
5–11
5–12
5–13
5–13
5–14
5–14
5–16
5–17
5–18
5–18
5–19

A Self-Test Error Codes
A.1
Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.1.1
NVR Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . .
A.1.2
DZ Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.1.3
Memory Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . .
A.1.4
Memory Management Unit Self-Test Error Codes . . . . . . . . .
A.1.5
Interval Timer Self-Test Error Codes . . . . . . . . . . . . . . . . . . .
A.1.6
System Device Self-Test Error Codes . . . . . . . . . . . . . . . . . . .
A.1.7
SCSI Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . .
A.1.8
Audio Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . .
A.1.9
Floating Point Unit (FPU) Self-Test Error Codes . . . . . . . . . .
A.1.10
Cache Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . .
A.1.11
LCG Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.1.12
NI Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–1
A–1
A–2
A–5
A–6
A–7
A–7
A–8
A–17
A–19
A–22
A–23
A–29

B Diagnostic LED Error Codes
B.1
B.1.1
B.1.2
B.1.3
B.1.4
B.1.5

Reading Diagnostic LED Codes . . . . . . . . . . . . . . . . . . . . . . . . . .
Powerup/Initialization LED Codes, XXXX zzzz . . . . . . . . . . .
TOY/NVR LED Codes, OOOX zzzz . . . . . . . . . . . . . . . . . . . . .
DZ LED Codes, OOXX zzzz . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory LED Codes, OXOX zzzz . . . . . . . . . . . . . . . . . . . . . .
System Device LED Codes, XOOO zzzz . . . . . . . . . . . . . . . . .

B–1
B–2
B–3
B–3
B–4
B–4

B.1.6
B.1.7
B.1.8
B.1.9
B.1.10

SCSI Device LED Codes, XOXO zzzz . . . . . . . . . . . . . . . . . . .
LCG LED Codes, OOXO zzzz . . . . . . . . . . . . . . . . . . . . . . . . .
NI Device LED Codes, XOOX zzzz . . . . . . . . . . . . . . . . . . . . .
Synchronous Communication Device LED Codes, XXOO
zzzz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cache LED Code, OXOO zzzz . . . . . . . . . . . . . . . . . . . . . . . .

B–4
B–5
B–6
B–6
B–8

C Troubleshooting
C.1

Troubleshooting Symptoms and Corrective Actions . . . . . . . . . . .

C–2

D VAXstation 4000 VLC Part Numbers
D.1

Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D–1

SHOW DEVICE Command . . . . . . . . . . . . . . . . . . . . . . . . . .
Sample Show Config Display . . . . . . . . . . . . . . . . . . . . . . . . .
Sample Showing System Errors . . . . . . . . . . . . . . . . . . . . . . .

4–4
4–5
4–6

System Module Major Components . . . . . . . . . . . . . . . . . . . .
System Module Internal Connectors . . . . . . . . . . . . . . . . . . .
VAXstation 4000 VLC System Module Block Diagram . . . . . .
Command Packet General Format . . . . . . . . . . . . . . . . . . . . .
Ethernet Packet Format . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VAXstation 4000 VLC System Box . . . . . . . . . . . . . . . . . . . . .
Cricket Retaining Clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Right Side of the System Box . . . . . . . . . . . . . . . . . . . . . . . . .
VAXstation 4000 VLC I/O Panel . . . . . . . . . . . . . . . . . . . . . .
System ROM Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Configuration Tables . . . . . . . . . . . . . . . . . . . . . . . . . . .
Device Configuration Table . . . . . . . . . . . . . . . . . . . . . . . . . .
Driver Descriptor Data Structure . . . . . . . . . . . . . . . . . . . . .

1–3
1–5
1–7
1–16
1–20
2–2
2–3
2–6
2–8
3–6
3–9
3–10
3–12
3–16

Index
Examples
4–1
4–2
4–3

Figures
1–1
1–2
1–3
1–4
1–5
2–1
2–2
2–3
2–4
3–1
3–2
3–3
3–4
3–5

vii

3–6
3–7
3–8
3–9
4–1
4–2
4–3
4–4
5–1
5–2
5–3
5–4
5–5
5–6
5–7
5–8
5–9

Diagnostic Drive Console Support . . . . . . . . . . . . . . . . . . . . .
Console Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCIA Data Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Console Port Driver Function Block . . . . . . . . . . . . . . . . . . . .
Successful Power-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unsuccessful Power-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Successful and Unsuccessful Self Test . . . . . . . . . . . . . . . . . .
Utilities List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Location of System Box FRUs . . . . . . . . . . . . . . . . . . . . . . . .
Rear View of the System Box . . . . . . . . . . . . . . . . . . . . . . . . .
Right Side View of the System Box . . . . . . . . . . . . . . . . . . . .
Removing the cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the RZ23L Hard Disk Drive . . . . . . . . . . . . . . . . .
RZ23L SCSI and Power Cables . . . . . . . . . . . . . . . . . . . . . . .
RZ23L Disk Drive SCSI ID Jumper Location . . . . . . . . . . . . .
Power Supply Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Password Clearing Points . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–17
3–19
3–21
3–22
4–2
4–3
4–7
4–16
5–2
5–3
5–4
5–6
5–7
5–8
5–9
5–12
5–17

CPU Restart Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interrupt Signal Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interrupt Vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graphics Controller Screen Formats . . . . . . . . . . . . . . . . . . .
Serial Line Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Serial Line Controller Register Addresses . . . . . . . . . . . . . . .
TOY Chip Register Addresses . . . . . . . . . . . . . . . . . . . . . . . .
Devices and Cable Part Numbers . . . . . . . . . . . . . . . . . . . . . .
VAXstation 4000 VLC System Box Operating Conditions . . .
VAXstation 4000 VLC System Box Electrical
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Directory Type Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Path Size Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flag Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running Self Test Using the Test Command . . . . . . . . . . . . .
Device Number and Self-Test Commands . . . . . . . . . . . . . . .
SET and SHOW Parameters . . . . . . . . . . . . . . . . . . . . . . . . .

1–8
1–10
1–11
1–16
1–17
1–18
1–19
2–7
2–9

Tables
1–1
1–2
1–3
1–4
1–5
1–6
1–7
2–1
2–2
2–3
3–1
3–2
3–3
4–1
4–2
4–3

viii

2–9
3–14
3–14
3–15
4–7
4–8
4–18

4–4
4–5
5–1
A–1
A–2
A–3
A–4
A–5
A–6
A–7
A–8
A–9
A–10
A–11
A–12
A–13
B–1
B–2
B–3
B–4
B–5
B–6
B–7
B–8
B–9
B–10
C–1
C–2
C–3
C–4
C–5
C–6
C–7
D–1
D–2
D–3
D–4

Diagnostic Environments . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SET DIAGENV Command . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hard Disk Drive SCSI Jumper Settings . . . . . . . . . . . . . . . . .
TOY/NVR Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . .
DZ Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DZ Suberror Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . .
Memory Management Unit Self-Test Error Codes . . . . . . . . .
Interval Timer Self-Test Error Codes . . . . . . . . . . . . . . . . . . .
System Device Self-Test Error Codes . . . . . . . . . . . . . . . . . . .
SCSI Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . .
FPU Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cache Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . .
LCG Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . .
NI Self-Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Powerup and Initialization LED Codes . . . . . . . . . . . . . . . . .
TOY and NVR LED Codes . . . . . . . . . . . . . . . . . . . . . . . . . . .
DZ LED Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory LED Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Device LED Codes . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCSI Device LED Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LCG LED Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NI LED Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Synchronous Communication Device LED Codes . . . . . . . . . .
Cache LED Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Monitor Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mouse and Tablet Problems . . . . . . . . . . . . . . . . . . . . . . . . . .
Keyboard Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expansion Box Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FRU Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Miscellaneous FRU Part Numbers . . . . . . . . . . . . . . . . . . . . .
System and Expansion Box Cables and Terminators . . . . . . .
Expansion Box (SZ03) FRU Part Numbers . . . . . . . . . . . . . .

4–22
4–22
5–10
A–1
A–2
A–3
A–5
A–6
A–7
A–7
A–8
A–17
A–19
A–22
A–23
A–29
B–2
B–3
B–3
B–4
B–4
B–5
B–5
B–6
B–7
B–8
C–3
C–6
C–6
C–7
C–7
C–7
C–9
D–2
D–3
D–3
D–4

D–5
D–6
D–7

Expansion Box (SZ16) FRU Part Numbers . . . . . . . . . . . . . .
VAXstation 4000 VLC Monitors . . . . . . . . . . . . . . . . . . . . . . .
Monitor and Graphic Module Cross Reference . . . . . . . . . . . .

D–4
D–5
D–6

Preface
This manual is a support and reference document for Digital Service personnel
who perform maintenance tasks on the VAXstation 4000 VLC workstation. It
is also for qualified Digital customers who have a self-maintenance agreement
with Digital Equipment Corporation.

Organization of this Manual
This manual contains the following chapters:
•

Chapter 1 - Provides an overview of the VAXstation 4000 VLC system
features, main memory, network interface and SCSI controllers.

•

Chapter 2 - Provides configuration information for the VAXstation 4000
VLC system.

•

Chapter 3 Presents an overview of the VAXstation 4000 VLC diagnostic
firmware.

•

Chapter 4 - Provides information on diagnostic testing.

•

Chapter 5 - Provides information on how to remove and replace system
FRUs.

•

Appendix A - Contains the Self Test Error tables.

•

Appendix B - Contains the Diagnostic LED Error tables.

•

Appendix C - Contains the Troubleshooting/Problem Isolation tables.

•

Appendix D - Contains the Field Replaceable Unit (FRU) part number
tables.

Associated Documentation
The following documents provide additional information which is closely
related to the VAXstation 4000 VLC system:
•

VAXstation 4000 VLC Owner’s Manual
Part number EK-VAXVL-OG

•

VAXstation 4000 VLC and Model 60 Operation Installation Guide
Part number EK-PMARI-IG

•

VAXstation 4000 VLC Pocket Service Guide
Part number EK-V466H-PS

Conventions
The conventions are used in this manual.

xii

Convention

Description

WARNING

Contains important information about personal safety.

CAUTION

Contains information to prevent damage to the equipment.

NOTE

Contain general information.

Part number

SHOW ERRORS

Commands are shown in all capital letters to distinguish them
from text.

1
VAXstation 4000 VLC System Components
This chapter describes the modules and features of the VAXstation 4000 VLC
system. Information about the central processor (CPU), main memory, network
interface, SCSI controller, and other components of the system are included.

1.1 Overview
The VAXstation 4000 VLC system module (PN 54-20768-01) forms the basis
of the entire system. The VAXstation 4000 VLC system is a single-user
engineering workstation, which includes the following:
•

LK401 keyboard

•

VSXXX-AA mouse or VSXXX-AB tablet

•

Monochrome or color video monitor

•

Mass storage device

•

SCSI Ethernet controllers

VAXstation 4000 VLC System Components 1–1

VAXstation 4000 VLC System Components
1.1 Overview
Figure 1–1 shows the major components of the system module.
Base system ROMs
TOY clock

SCSI controller

S-chip

SOC chip

Ethernet address ROM

Ethernet controller

VAXstation 4000 VLC ASICs (Application Specific Intregated Circuits)

1–2 VAXstation 4000 VLC System Components

VAXstation 4000 VLC System Components
1.1 Overview
Figure 1–1 System Module Major Components
7

J10
J1
J2

J11
E31

E38

J4
J5
E39

4
E32

E19
E4

J13

E38
E4

E13

3
E14
J8
J9

J12

2
LJ-00963-TI0

VAXstation 4000 VLC System Components 1–3

VAXstation 4000 VLC System Components
1.1 Overview
Figure 1–2 shows the internal connector locations of the system module. Section 2.1.3
and Section 2.1.5 describe the system module external connectors.
Power connector
Mass storage connector

SCSI connector

Memory module connectors

Graphics module connector

NVR reset pads

1–4 VAXstation 4000 VLC System Components

VAXstation 4000 VLC System Components
1.1 Overview
Figure 1–2 System Module Internal Connectors
3

J10
J1
J2

J11
E31

E38

J4
J5
E39

E32

E19
E4

J13

E38
E4

E13

E14
J8
J9

J12

6
LJ-00964-TI0

VAXstation 4000 VLC System Components 1–5

VAXstation 4000 VLC System Components
1.2 Central Processor Unit

1.2 Central Processor Unit
The Central Processor Unit (CPU) chip is a 32-bit virtual memory
microprocessor with integral floating point capability and on-chip cache,
derived from the CVAX CPU, CFPA floating point unit and CVAX clock chips.
The CPU key features are
Feature

Description

Subset of VAX computer
data types

Byte, word, longword, quadword, character string, variablelength bit field, and support for f_floating and g_floating
point data types.

Full base instruction
group

Integer and logical, address, variable-length bit field,
control, procedure call, queue, character string instructions
CMPC3/CMPC5, LOCC, MOVC3/MOVC5, SCANC, SKPC
and SPANC, and operating system support. f_floating,
The CFP chip supports d_floating and g_floating point
instructions.

Full VAX memory
management

Includes a demand paged memory management unit fully
compatible with VAX computer memory management.
System space addresses are virtually mapped through
single-level page tables; process space addresses are
virtually mapped through double-level page tables.
Supports four gigabits of virtual memory and up to one
gigabits of physical memory.

On-chip memory cache

The CPU chip has 8 Kbytes of on-chip cache to improve
execution times by minimizing the use of the memory
subsystem.

Figure 1–3 is a block diagram of the VAXstation 4000 VLC system module.

1–6 VAXstation 4000 VLC System Components

VAXstation 4000 VLC System Components
1.2 Central Processor Unit
Figure 1–3 VAXstation 4000 VLC System Module Block Diagram
MDAL

Memory Modules
(8-24 MB Parity)

Control

System ROM (256 KB)

Video Option Connector

Control

Data
ELC
OSC

Address

SOC

CDAL

EDAL
DC7201
SChip Gate Array

SCSI Port

Control

Cache Invalidate Tag Store

RS-232 Communications Port

Printer Port

Keyboard Mouse/Tablet Connection

Digital Sound Chip

NDAL
EDAL->NDAL

Ethernet

TOY Clock
LJ-01060-TI0

VAXstation 4000 VLC System Components 1–7

VAXstation 4000 VLC System Components
1.2 Central Processor Unit

1.2.1 Processor Restart
When the processor is signaled by the SYSRESET_L or HALT_L pins, or
when it detects a severe corruption of its operating environment, it performs a
restart process which saves some context in internal processor registers SAVPC
and SEVPSL. The processor changes to the un-mapped mode, and begins to
execute from the system ROM at address 2004.0000. The SAVPSL register
contains a restart code that indicates the cause of the restart.
The systems console firmware determines which restarts are delivered to
the operating system and which are displayed on the operator’s console. The
restart codes (in hex) are listed in Table 1–1.
Table 1–1 CPU Restart Codes
Code

Reason

Halt asserted

Power on

Interrupt stack not valid during exception

Machine check normal exception

Halt instruction executed in kernel mode

SCB vector bits <1:0>=11

SCB vector bits <1:0>=10

CHMx executed while on interrupt stack

ACV or TNV during machine check exception

ACV or TNV during kernel stack not valid exception

Machine check during machine check exception

Machine check during kernel stack not valid exception

PSL<26:24>=101 during interrupt or exception

PSL<26:24>=110 during interrupt or exception

PSL>26:24>=111 during interrupt or exception

PSL<26.24>=101 during REI

PSL<26.24>=110 during REI

PSL<26.24>=111 during REI

1–8 VAXstation 4000 VLC System Components

VAXstation 4000 VLC System Components
1.2 Central Processor Unit
The CPU restart process sets the state of the chip as follows:
SAVPC

Saved PC

SAVPSL

Saved PSL <31:16, 7:0> in <31:16, 7:0>
Saved MAPEN <0> in <15>
Valid stack flag in <14>
saved restart code in <13:8>

interrupt stack pointer

PSL

041F 0000 (hex)

2004 0000 (hex)

MAPEN

SISR

0 (power-on only)

ASTLVL

4 (power-on only)

ICCS

0 (power-on only)

MSER

0 (power-on only)

CADR

0 (power-on only)
All else else undefined

1.2.2 Interrupt Controller
The interrupt controller section of the S-chip receives eight interrupt request
signals from the system I/O devices, and synchronizes and latches them. The
eight latched requests are then masked by individual Enable bits and the eight
results are read to form a single interrupt. The interrupt is presented to the
CPU on IRQ1_L, interrupt priority level 15 (HEX).
The controller contains three 8-bit registers:
INT_REQ

Holds the latched interrupt requests received from I/O devices
(read-only).

INT_MSK

Contains a mask which determines which interrupt requests will
generate a processor interrupt (read/write).

INT_CLR

Enables a program to selectively reset interrupt request bits in
the INT_REQ register (write-only).

VAXstation 4000 VLC System Components 1–9

VAXstation 4000 VLC System Components
1.2 Central Processor Unit

1.2.3 Interrupt Sources and Ranking
There are eight interrupt sources, listed in Table 1–2. The interrupt numbers
7:0 indicate their bit positions in the registers and their relative priority when
more than one request is pending; 7 is the highest priority.
Interrupts 0, 1, 4, and 5 are dedicated to devices on the VLC system module.
Interrupts 2 and 3 come from optional devices.
Table 1–2 Interrupt Signal Sources
Number

Name

Source

79C30 controller request for service

Asynchronous line receiver done or silo full

Asynchronous line transmit done

Graphics

Network controller

Storage controller

1.2.4 Interrupt Vector Generation
When the CPU acknowledges an interrupt from the interrupt controller, the
interrupt controller causes a vector number to be placed on the CDAL bus that
corresponds to the highest priority pending interrupt. The interrupt controller
obtains this vector number from a reserved location in the system module on
board ROM. The conventional vector values established by the ROM firmware
for the eight devices are listed in Table 1–3.

1–10 VAXstation 4000 VLC System Components

VAXstation 4000 VLC System Components
1.2 Central Processor Unit
Table 1–3 Interrupt Vectors
Number

Name

Vector

Source

02C4

79C30 request for service

0250

Asynchronous serial line controller
receiver done or silo full

0254

Asynchronous serial line controller
transmit done

0244

Graphics interrupt 1

0248

Graphics interrupt 0

03F8

Network controller

o3FC

Storage controller

1.3 Main Memory
In the VAXstation 4000 VLC, system memory is not mounted on the system
board. Memory requirements are derived from DRAM memory modules that
are pluged into the system board. The system requires a minimum of 8 Mbytes
(two 4-Mbyte memory modules) and can have as many as six memory modules
installed, totaling 24 Mbytes.
When memory is added to a system, it must be added in pairs of memory
modules yielding 8 Mbytes per pair. One memory module accomodates the
low byte and the other stores the high byte. The system adjusts memory
addressing automatically to always present a contiguous address range to the
CPU, starting at physical address 0 and extending upwards to 1FF.FFFF.

VAXstation 4000 VLC System Components 1–11

VAXstation 4000 VLC System Components
1.3 Main Memory
The S-chip arbitrates between, and services requests for, main memory cycles
from several sources: the Ethernet Controller (NI), Mass Storage Controller
(SCSI), CPU, and Graphics Controller (GC) section of the S-chip. To minimize
interaction between the requestors, the S-chip has three buses: the CDAL,
which connects to the CPU; the EDAL, which connects to the Ethernet
controller and the storage controller; and the MDAL, which connects to the
memory system, including Video RAMs.
The S-chip is capable of performing several types of RAM cycles: longword,
quadword, and octaword. Buffering between the requestors and the memory
allows these cycles to maximize the available memory bandwidth.
The Ethernet controller and SCSI controller are DMA devices. The graphics
controller can generate addresses independently. All three of these devices may
attempt to write to memory locations that are currently cached. To maintain
cache coherency, the CPU cache is checked and, if necessary, the entry is
invalidated for writes requested by any of these devices. This could impose
a significant load on the CPU to check the potential invalidates. For this
reason the S-chip controls a separate invalidated filter that maintains a copy
of the CPU cache tags. In this way only those writes that do require a cache
invalidate can disturb the CPU.

1.3.1 Main Memory Requests
Main memory requests have a fixed priority as follows (highest to lowest):
•

GC - shift register load

•

GC - cursor buffer load

•

Refresh

•

NI Controller

•

DC222

•

Bus Adapter Controller

•

SCSI Controller

•

GC Address Generator

1–12 VAXstation 4000 VLC System Components

VAXstation 4000 VLC System Components
1.3 Main Memory

1.3.2 DMA Mapping
The Ethernet and SCSI controllers access memory using a translation table
stored in main memory. A Map Base Address Register (MAP_BASE) within
the S-chip points to this reserved section of memory. The 32,768 longwords
extending upwards from MAP_BASE provide translations for the page address
supplied by either DMA device. Each DMA device has a two-entry cache of
current translations kept in the S-chip. The operating system allocates entries
for each DMA device in the translation table.

1.3.3 Translation
Each DMA controller has a 24-bit address counter for DMA transfers that has
a page field (15-bits) and an address-within-page field (9-bits). When a DMA
controller presents an address to the S-chip to perform a DMA cycle to or from
main memory, the S-chip translates the address supplied using MAP_BASE
and the translation table contained in main memory as follows.
The bits <23:09> of the page field (the DMA controller-supplied address) are
compared to the address value held in either the read or write translation
cache for that DMA device. If the addresses match and if the entry is marked
valid, the associated page address held in a field of the cache entry is connected
with the address-within-page field of the supplied address to form the actual
address to be used and the DMA cycle proceeds.
If the address match failed, indicating that the DMA transfer is to an address
on a different page than the last DMA transfer the device initiated, bits
<23:09> of the DMA address supplied are connected with bits <24:17> of
MAP_BASE to form a new 23-bit longword aligned map register address. This
address is used to retrieve data from the translation table in main memory.
Bits <15:00> of the data that returned from memory are connected with
the original address-within-page bits supplied by the controller to form a
25-bit address that is the actual address to be accessed. Bits <15:00> that
were retrieved from the translation table are stored as a new value in the
appropriate translation cache associated with the DMA device and the valid bit
set for the entry.

VAXstation 4000 VLC System Components 1–13

VAXstation 4000 VLC System Components
1.4 ROM Memory

1.4 ROM Memory
The VAXstation 4000 VLC ROM contains the processor restart, diagnostic,
console code, and bootstrap programs.

1.4.1 System ROM
The system ROM data is stored in two EPROM chips that hold 256 Kbytes of
data. The data is in physical addresses 2004.0000 through 2007.FFFF. The
ROM data path is 32 bits wide. Some physical addresses in the ROM have
fixed use.
2004.0000

Processor restart address. The processor begins execution at this
address in non-mapped mode when a processor restart occurs.

2004.0004

System type register SYS_TYPE. The contents of this longword
supplement the internal processor SID register to identify the
processor and system type.

2004.0020

Interrupt vector numbers. Eleven consecutive longwords starting
at this address are automatically referenced by the hardware to
supply the interrupt vector numbers for the eleven interrupt sources
connected to the interrupt controller plus the three unused hardware
interrupts of the CPU.

1.4.2 Network Address ROM
A 32-byte ROM on the system module contains the network address for the
system. Information from this ROM is read in the low-order bytes of 32
consecutive longwords at physical addresses 2009.0000 through 2009.007C.
The network address occupies the first six bytes (addresses 2009.0000 through
2009.0014). The byte at 2009.0000 is the first byte to be transmitted or
received in an address field of an Ethernet packet: its low-order bit is
transmitted or received first in the serial bit stream.

1–14 VAXstation 4000 VLC System Components

VAXstation 4000 VLC System Components
1.5 Graphics Controller

1.5 Graphics Controller
The graphics controller is a part of the memory control section of the S-chip.
The graphics controller competes with other devices for memory cycles.
Graphics operations, however, have the lowest priority of all devices requesting
memory cycles.
The graphics controller supports both 8-plane and single-plane 2D graphics
and can execute the most commonly used primitives of DECwindows. The
controller draws by way of linear addressing. The types of operations
supported are
•

Lines

•

One, two, and three operand rasterops

•

Text

Rasterops can be
•

Solid colored

•

Tiled

•

Stippled

•

Color expanded

•

Plane compacted

All operations can be performed to the frame buffer and non-displayable main
system memory using virtual addressing with multiple clipping rectangles for
overlapping window hardware support.
The VAXstation 4000 VLC workstation has no video frame buffer; one of
several video option modules can be added to the system module to provide
the frame buffer from which pixels are output to the monitor. The video
option modules carry video RAMS, pixel timing, and output digital-to-analog
conversion/level sifters. The interface to the system module is at the "nibble"
level, one quarter of the pixel rate.

VAXstation 4000 VLC System Components 1–15

VAXstation 4000 VLC System Components
1.5 Graphics Controller

1.5.1 Graphics Controller Screen Formats
The graphics controller supports several formats, which may not be supported
by individual video frame buffer modules. Table 1–4 lists the screen formats
supported by the graphics controller.
Table 1–4 Graphics Controller Screen Formats
Format

Color

Monochrome

Refresh Rate

1280 x 1024

Supported

66 Hz

1024 x 768

Supported

TBS

800 x 600

Supported

Not Supported

60 Hz

1024 x 864

Supported

60 Hz

1.5.2 Graphics Controller Communication
Commands are passed from the CPU to the graphics controller in variable
length packets. The controller accepts the command packet data and, if it is
not busy and if the Clip List feature is not enabled, loads the command directly
into its registers for execution. If the graphics controller is busy, or the Clip
List feature is enabled, the command packet data is written by the controller
into a circular buffer area in main memory - the LCG Command FIFO. The
size and location of the FIFO are two of the setup parameters required by the
graphics controller. Figure 1–4 shows a command packet.
Figure 1–4 Command Packet General Format
3
1

2
4
OPCODE

1
6

2
3
Flags

1
5

0
0
OPCODE Specific

... More Longwords, specified by <23:22> in FLAGS above
LJ-00125-TI0

1–16 VAXstation 4000 VLC System Components

VAXstation 4000 VLC System Components
1.6 Serial Line Controller Feature

1.6 Serial Line Controller Feature
The system module serial line controller handles four asynchronous serial
lines. The controller and a 48-entry silo shared by all four receive lines are
parts of the S-chip. The four serial lines are numbered 0 through 3, and each
has a particular primary use, as listed in Table 1–5.
Table 1–5 Serial Line Usage
Line

Device

Keyboard
Connected to 4-pin modular jack (MJ) mounted on the video module. Data leads only.
Supports the LK401 Keyboard

Pointer
Connected to a miniature DIN connector mounted on the video module. Data leads
only. Supports VSXXX-AA mouse or VSXXX-AB Tablet.

Communications
Connected to a 25-pin D-sub connector mounted on the system module, RS423
compatible. Data leads plus modem control signals.

Printer
Connected to a 6-pin MMJ mounted on the system module. DEC423 data leads only.

Line 3 connects to a printer through a BC16E cable. If a special jumper is
installed in 5 on the system module, a break condition sensed on this line
triggers the CPU halt signal, restarting the system with a code 2.

1.6.1 Serial Line Controller Registers
The serial line controller has eight addressable registers. These registers are
listed in Table 1–6 with the addresses and names.

VAXstation 4000 VLC System Components 1–17

VAXstation 4000 VLC System Components
1.6 Serial Line Controller Feature
Table 1–6 Serial Line Controller Register Addresses
Address

Name

Access

Description

200A.0000

SER_CSR

R/W

Control and status register

200A.0004

SER_RBUF

Receiver buffer - oldest data in silo

200A.0004

SER_LPR

Line parameter register

200A.0008

SER_TCR

R/W

Transmitter control register

200A.000C

SER_MSR

Modem status register

200A.000C

SER_TDR

Transmitter data register

200A.0010

DZ_LPR0

Line parameter register, line 0

200A.0014

DZ_LPR1

Line parameter register, line 1

200A.0018

DZ_LPR2

Line parameter register, line 2

200A.001C

DZ_LPR3

Line parameter register, line 3

1.7 Time-of-Year Clock
The time-of-year (TOY) clock is a watch chip that keeps the date and time of
day. The chip contains 50 bytes of general purpose RAM storage and a 32.768
KHz time base oscillator. An internal battery powers the chip and oscillator
while the system is off.

1.7.1 Battery Backup
A battery in the TOY chip supplies power to the clock while system power is
off. This battery should last 10 years.

1.7.2 TOY Clock Chip Register
The TOY clock chip contains 64 8-bit registers. Ten of the registers contain
date and time data, four are control and status registers, and the remaining
50 provide general purpose RAM storage. The registers occupy 64 consecutive
longwords of address space, shown in Table 1–7.
Each register is accessed using bit <9:2> of the longword; bits <31:10> and
<1:0> are ignored on writing and undefined on reading.

1–18 VAXstation 4000 VLC System Components

VAXstation 4000 VLC System Components
1.7 Time-of-Year Clock
Table 1–7 TOY Chip Register Addresses
Address

Name

Description

200B.0000

WAT_SEC

Time seconds, 0...59

200B.0004

WAT_ALMS

Alarm seconds (not used)

200B.0008

WAT_MIN

Time minutes, 0...59

200B.000C

WAT_ALMM

Alarm minutes (not used)

200B.0010

WAT_HOUR

Time hours, 0...23

200B.0014

WAT_ALMH

Alarm hours (not used)

200B.0018

WAT_DOW

Day of week, 1...7

200B.001C

WAT_DAY

Day of month, 1...31

200B.0020

WAT_MON

Month of year, 1...12

200B.0024

WAT_YEAR

Year of century, 0...99

200B.0028

WAT_CSRA

Time base divisor

200B.002C

WAT_CSRB

Date mode and format

200B.0030

WAT_CSRC

Interrupt flag (not used)

200B.0034

WAT_CSRD

Valid RAM and time flag

2008.0038

First byte of RAM data

.
.
.
200B.00FC

Last byte of RAM data

VAXstation 4000 VLC System Components 1–19

VAXstation 4000 VLC System Components
1.7 Time-of-Year Clock
Note
Because each register spans two bytes on the system bus, only word
or longword instructions can be used to manipulate these registers.
Instructions for modifying bits such as BBSS, BBSC, BBCC and BBCS
cannot be used because they generate byte instructions for readmodify-write cycles which corrupt that portion of the register not being
accessed.

1.8 Network Controller Feature
The VAXtation 4000 VLC workstation can be connected to an Ethernet
network by connecting a transceiver cable to a standard Ethernet connector.
The network controller is part of the system module and consists of a Lance
Ethernet controller chip, a serial interface adapter, an Ethernet transceiver
chip, and a 15-pin D-sub connector for standard Ethernet transceiver cable.

1.8.1 Packet Format
Data is passed over the Ethernet at a serial data rate of 10 million bits per
second in variable length packets. Each packet has the format shown in
Figure 1–5.
Figure 1–5 Ethernet Packet Format
6 Bytes

Destination Address

6 Bytes

Source Address

2 Bytes

Type

46 .. 1500 Bytes

Data

4 Bytes

CRC Check Code
LJ-00091-TI0

The minimum size of a packet is 64 bytes. Packets shorter than this are
called runt packets and are treated as erroneous when received by the network
controller.

1–20 VAXstation 4000 VLC System Components

VAXstation 4000 VLC System Components
1.8 Network Controller Feature

1.8.2 Network Addresses
Ethernet network addresses are 48 bits (6 bytes) long. There are two types of
network addresses.
•

Physical Address: The unique address associated with a particular
workstation on the Ethernet network. Should be different from the
physical address of any other workstation on that Ethernet network.

•

Multicast Address: A multi-destination address associated with one or
more workstations on a given Ethernet network (also called a logical
address). There are two kinds of multicast addresses.
Multicast-Group Address: An address associated by higher-level
convention with a group of logically related workstations.
Broadcast Address: A pre-defined multicast address which denotes the
set of all workstations on the Ethernet network.

Bit 0 (the least significant bit of the first byte) of an address denotes the type
of address.
•

0 = Physical addresses

•

1 = Multicast addresses

For either type of address, the remaining 47 bits form the address value. A
value of 48 ones is always treated as the broadcast address.
The physical address of each VAXstation 4000 VLC workstation is determined
before the system ships from the factory. The physical address is stored in the
Ethernet Address ROM on the system module.

1.9 SCSI Controller Feature
The controller conforms to the ANSI Small Computer System Interface (SCSI)
specification. It has a single port, connecting to devices within the system
enclosure and allowing for external expansion.
The SCSI controller interface is a single-ended, bi-directional, 8-bit wide bus.
In addition to the system module, as many as seven devices can be attatched
to the controller. Devices can be either an initiator or target. An initiator
originates an operation by sending a command to a specific target. A target
performs an operation that was requested by an initiator. The VAXstation 4000
VLC workstation is always the initiator and all other SCSI devices attached to
it are targets.

VAXstation 4000 VLC System Components 1–21

VAXstation 4000 VLC System Components
1.9 SCSI Controller Feature
Each device attached to the SCSI bus is identified by a unique device ID
number in the range 0 to 7. The device IDs of the initiator and targets are
both placed on the data bus by asserting the data bits corresponding to the
device ID number. This number is controlled by programs that drive the SCSI
interface and is not fixed in the VAXstation 4000 VLC workstation hardware.
The interface consists of 18 signal lines; some are driven by initiators and some
by targets. The bus is permanently terminated at the SCSI controller end and
must always be terminated at each end. External termination can take place
either at
•

The expansion connector on the rear of the system enclosure

•

The second expansion connector on the last storage expansion unit in the
SCSI chain.

1.9.1 SCSI Bus Signals
The following is a brief description of SCSI bus signals.
•

DB7..0 and DBP
Comprise an 8-bit parallel data bus with an associated odd parity bit. The
use of the parity bit is optional but strongly encouraged. These lines can be
driven by either an initiator or a terminator, depending upon the direction
of data transfer.

•

RST
Signals all devices on the SCSI bus to reset to their initial power-on states.
Thereafter, it should be asserted only as a last resort during error recovery
since it indirectly affects all devices on the bus. An RST signal generated
by some other device on the bus causes an internal reset of he 53C94 chip
used in this controller and sets the interrupt request bit (INT in register
SCS_STATUS).

•

BSY and SEL
Are used by initiators and targets during the arbitration, selection, and
re-selection bus phases to establish or resume a logical connection between
an initiator and a target. Once the connection is established, the target
asserts BSY and the SEL signal is not driven by anything.

•

C/D, I/O and MSG
Collectively indicate one of six possible information transfer phases,
according to the following table. These signals are always driven by the
target device.

1–22 VAXstation 4000 VLC System Components

VAXstation 4000 VLC System Components
1.9 SCSI Controller Feature
MSG

C/D

I/O

Phase name

Transfer direction

Data out

to target

Data in

to initiator

Command

to target

Status

to initiator

(reserved)

Message out

to target

(reserved)

Message in

to initiator

•

ATN
Is used by an initiator to signal a target that it has a message ready. The
target can receive the message by entering the "message out" phase. ATN
is always driven by an initiator.

•

REQ and ACK
Are used to synchronize information transfers over the data bus during any
of the six information transfer phases. REQ is always driven by the target.
ACK is always driven by the initiator.

VAXstation 4000 VLC System Components 1–23

2
VAXstation 4000 VLC System
Configuration
This chapter describes the system box used with the VAXstation 4000 VLC
workstation.

2.1 VAXstation 4000 VLC System Box
The system box is used for desktop installation of the VAXstation 4000 VLC
system. Figure 2–1 shows the system box and its components. Refer to
Appendix D for a complete list of field replaceable units and part numbers.

VAXstation 4000 VLC System Configuration 2–1

VAXstation 4000 VLC System Configuration
2.1 VAXstation 4000 VLC System Box
System module (PN 54-20768-01)
Power supply (PN 70-22712-01)

RZ23L 121 Mbyte disk drive (PN 70-28115-01)(Optional)

Memory modules (PN 20-36110-05)

Graphics/Audio modules:
Module-1 (PN 54-20772-01)
Module-2 (PN 54-20774-01)
Module-3 (PN 54-20776-01)
Module-4 (PN 54-20776-02)
Figure 2–1 VAXstation 4000 VLC System Box
4

J2
J3
J4
J5
J6

38%

22%

2
1
LJ-00960-TI0

2–2 VAXstation 4000 VLC System Configuration

VAXstation 4000 VLC System Configuration
2.1 VAXstation 4000 VLC System Box

2.1.1 Mass Storage Device
The system box holds one RZ23L 121 Mbyte half-height drive. The drive is
mounted using a cricket retaining clip on one side of the drive. Figure 2–2
shows the system box with the RZ23L drive removed, revealing the cricket
retaining clip.
Figure 2–2 Cricket Retaining Clip

C2
C1

LJ-01386-TI0

2.1.2 Power Supply
The VAXstation 4000 VLC system box uses the Model H7109-00 power supply.
This power supply has two AC power connectors, located at the rear of the
metal container, to connect the system to a wall outlet and to the system
monitor. The power switch and power OK LED are located on the side of the
unit. There is a -9.0 V LED inside the power supply, which is visible from the
outside of the power supply. The power supply also has one 12 V fan for cooling
the system.

VAXstation 4000 VLC System Configuration 2–3

VAXstation 4000 VLC System Configuration
2.1 VAXstation 4000 VLC System Box
The power supply has an automatic voltage select (AVS ) circuit to
automatically select the AC input of either 100 to 120 Vac or 220 to 240
Vac. The supply is a 106 watt (W) unit. It supplies the following voltages:
Volts dc

Ampere

+5.1

10.0

+3.3

1.98

+12.1

3.5

-12.0

0.39

The H7109 supplies power to the following components:
•

System module (Supplies power for option modules installed in the system.)

•

Mass storage devices

•

Cooling fan

•

AC Power for system monitor

•

LCG Controllor module

2.1.2.1 Power Supply Specifications
The following tables list the power supply specifications.
Parameter

Specifications

Line voltage

120 V

240 V

Voltage tolerance

88 V to 132 V

176 V to 264 V

Frequency

60 Hz

50 Hz

Frequency tolerance

47 Hz to 63 Hz

Input current

2.7 A (max.)
4.0 (max)

1.2 A (max) PS only
2.0 A (max) AUX only

Inrush current

45.0 A PS only
(max.) cold

Power consumption
(max.)

163 W

2–4 VAXstation 4000 VLC System Configuration

VAXstation 4000 VLC System Configuration
2.1 VAXstation 4000 VLC System Box
Power Supply Output Characteristics
Parameter

Specifications
Minimum

Typical

Maximum

+5.1 V reg.
Short term

4.90 V

5.05 V

5.20 V

+5.1 V reg.
Long term

+4.85 V

+5.10 V

+5.25 V

+12.1 V reg.
Short term

+11.70 V

+12.10 V

+12.50 V

+12.1 V reg.
Long term

+11.50 V

+12.10 V

+12.70 V

-12.0 V reg.
Long term

-11.40 V

-12.00 V

-12.60 V

+3.3 V Long term

+3.13 V

+3.3 V

+3.46 V

Load range
+3.3 V
+5.1 V
+12.1 V
-12.0 V

o.80 A
1.2 A
0.18 A
0.14 A

Ripple and noise
1Hz to 10Hz
+3.3 V
+5.1 V
+12.1 V
-12.0 V
Ripple and noise
(except +5.1 V and +3.3 V)
10 MHz to 50 MHz
Ripple and noise
10 MHz to 50 MHz
+5.1 V
+3.3 V

1.98 A
10.0 A
3.5 A
0.39 A

20.0 mV
30.0mV
50.0 mV

30.0 mV
50.0 mV
70.0 mV
120.0 mV

1.0%

2.0%

30 mV
20 mV

50 mV
30 mV

VAXstation 4000 VLC System Configuration 2–5

VAXstation 4000 VLC System Configuration
2.1 VAXstation 4000 VLC System Box

2.1.3 VAXstation 4000 VLC System Controls
The AC power switch is located on the left rear of the system box. The switch
controls the AC power to the power supply but does not affect the power outlet
provided for add-on peripherals at the rear of the system box.
The power OK LED is a small, green indicator visible at the left front of the
system box. The LED is lit when AC power is applied and the correct output
voltage levels are present. Some controls and indicators for the VAXstation
4000 VLC system are located on the right rear of the system box. Figure 2–3
shows the right rear side of the system box.
Audio In/Out - This jack is a four pin MJ type connector.
Halt console switch - When actuated, this momentary switch sends a Halt
signal to the CPU module.

Console select switch - Use this switch to select either the graphics
terminal or printer/console port as the system console.

Keyboard connector

Mouse connector

Figure 2–3 Right Side of the System Box

1
2
3
4
5
LJ-00962-TI0

2–6 VAXstation 4000 VLC System Configuration

VAXstation 4000 VLC System Configuration
2.1 VAXstation 4000 VLC System Box

2.1.4 System Box Internal Cabling
Table 2–1 lists the system box cabling and cable part numbers.
Table 2–1 Devices and Cable Part Numbers
System Device

Cable P/N

Monitor power cable

17-00606-01

System power cable

17-00442-01

Internal power cable

17-02876-01

Internal SCSI cable

17-03191-01

2.1.5 VAXstation 4000 VLC I/O Panel
External devices connect to the I/O panel on the back of the system box.
Figure 2–4 shows the rear of the system box and the I/O connectors. The
system configuration determines which external devices connect to the I/O
panel.
Diagnostic LEDs
Video monitor connector

Printer/Console port

RS232

SCSI connector

Thick-wire Ethernet connector

AC power to H7109 power supply

AC power for video monitor

VAXstation 4000 VLC System Configuration 2–7

VAXstation 4000 VLC System Configuration
2.1 VAXstation 4000 VLC System Box
Figure 2–4 VAXstation 4000 VLC I/O Panel

1
2
3
4
5
6

7
8
LJ-00961-TI0

2.1.6 VAXstation 4000 VLC System Box Specifications
Table 2–2 lists the system box operating conditions and Table 2–3 lists the
electrical specifications.

2–8 VAXstation 4000 VLC System Configuration

VAXstation 4000 VLC System Configuration
2.1 VAXstation 4000 VLC System Box
Table 2–2 VAXstation 4000 VLC System Box Operating Conditions
Temperature range

15°C to 32°C (59°F to 90°F) (with tape or floppy)
0°C to 40°C (32°F to 104°F) (without tape of floppy)

Maximum rate of
temperature change

11°C (52°F) per hour

Relative humidity

20% to 80%

Altitude

2400 m at 36°C (8000 ft at 96° F)

Maximum wet bulb
temperature

28°C (82°F)

Minimum dew point

2°C (36°F)

Table 2–3 VAXstation 4000 VLC System Box Electrical Specifications
Input voltage

88 Vac to 132 Vac
176 Vac to 264 Vac

Frequency range

47 to 63 Hz

VAXstation 4000 VLC System Configuration 2–9

3
VAXstation 4000 VLC Firmware
This chapter is an overview of the VAXstation 4000 VLC system firmware. The
firmware is located in two EPROMs that hold a total of 256K bytes of data.
The firmware has the following four areas of operation:
•

Power-Up initialization code

•

Console

•

Extended self test code

•

Utilities

VAXstation 4000 VLC Firmware 3–1

VAXstation 4000 VLC Firmware
3.1 Power-Up Initialization Code

3.1 Power-Up Initialization Code
The power-up initialization code executes when power to the system is turned
on. The power-up initialization code sequence is:
1. The system tests enough memory to allow it to bring up the console for
building console and device structures.
2. The system checks its configuration for optional devices.
3. The system tests the Time-of-Year (TOY) clock and the non-volatile RAM.
If the test fails, the power-up test stops.
4. The system constructs the master configuration table (MCT), the device
configuration Table (DCT), driver descriptor, shared console interface area,
and a blank page frame map.
5. The system tests the serial lines. If the test fails, the console terminal is
not enabled.
Note
If the alternate console switch is set for alternate console, the terminal
connected to line three of the serial port is used as the console.

6. The system invokes the console device initialization routine.
The system type and ROM ID are displayed on the console device followed
by its memory capacity and the Ethernet address.
7. The system test dispatcher tests the functional blocks of the system. The
dispatcher runs the tests in the following order:
a. Memory test
b. Clock test
c.

Memory management unit (MMU) test

d. Floating point unit (FPU) test
e.

Interval timer test

Miscellaneous system board test (checksums, interrupt controller test,
Ethernet ID ROM)

g. Network controller test
h. SCSI Controller test
i.

Sound chip test

3–2 VAXstation 4000 VLC Firmware

VAXstation 4000 VLC Firmware
3.1 Power-Up Initialization Code
If any device fails during testing, the dispatcher continues to test the
remaining devices until all tests are completed.
Note
If halts are enabled the console prompt (>>>) displays. If halts are
disabled, the system autoboots using the default device stored in NVR
or the Ethernet,if no device is specified.

3.2 Console Overview
Console mode allows operation of a console device. The console device can be
•

A workstation video device and LK401 keyboard and mouse

•

A terminal connected to line three of the serial port

•

A remote system connected over the Ethernet

Console mode can be entered if
•

The console HALT parameter is set to halt (3) at power-up.

•

A HALT instruction is executed with the HALT parameter set to halt (3).

•

A severe processor condition occurs (such as an invalid interrupt stack).

•

An external HALT is detected (pressing the halt button at the front panel)

In console mode input and output (I/O) routines are used by the
•

Power-Up self test

•

Extended self test

•

Utilities

•

VMB

VAXstation 4000 VLC Firmware 3–3

VAXstation 4000 VLC Firmware
3.3 Extended Self Test Overview

3.3 Extended Self Test Overview
You start the extended self tests by entering the "TEST" command at the
console prompt, followed by the number or numbers of the test you wish to
run. The test dispatcher runs the self test you request until an error occurs or
until all tests have completed.
The test dispatcher uses the main configuration table (MCT), device
configuration table (DCT), and drive descriptor data structures when running
thje self test. The test dispatcher performs the following steps when running
the self test:
1. Indexes the MCT using the device number
2. Gets a pointer to the DCT using the MCT
3. Locates the pointer to the device directory entries in the DCT
4. Scans the directories for the self test directory type (=1)
5. Reads the flags field of the DCT to determine if the self test needs to be
loaded into RAM. If the diagnostic test needs to be loaded into RAM, the
dispatcher allocates the memory space and copies the test from ROM to
RAM.
6. Reads the flags field in the DCT to determine if the diagnostic test requires
a shared diagnostic driver. If the self test uses a shared diagnostic driver,
the dispatcher determines the directory entry and the pointer of the driver
descriptor from reading the DCT. If the shared driver is not already in
RAM, the dispatcher allocates space and copies the driver from ROM to
RAM.
7. Calls the device self-test interface

3–4 VAXstation 4000 VLC Firmware

VAXstation 4000 VLC Firmware
3.4 Utilities Overview

3.4 Utilities Overview
To start a utility test, enter the following command at the console prompt.
TEST/UTIL dev_nbr util_nbr op1...opn
/UTIL

Tells the test dispatcher to run a utility

dev_nbr

Is the device number on which the utility operates

util_nbr

Is the utility number

op1_opn

Is one to n optional parameters

The console mode passes a list of parameters to the test dispatcher. The
test then uses the main configuration table (MCT), device configuration table
(DCT), and driver descriptor data structures when running the utility. The
dispatcher performs the following when running a utility:
•

Indexes into the MCT useing the device number

•

Gets a pointer to the device DCT from the MCT

•

Finds a pointer to the device directory entries in the DCT

•

Scans all the directories for the utility directory type (=3)

•

Reads the flags field in the DCT to determine if the utility needs to be
loaded into RAM. If the utility needs to be loaded into RAM, the dispatcher
allocates memory for loading the utility and copies it from ROM to RAM.

•

Reads the flags field in the DCT to determine if the utility uses a shared
diagnostic driver. If the utility uses a shared diagnostic driver, the
dispatcher determines the directory entry and pointer to the driver
descriptor from the DCT. If the shared driver is not already in RAM, the
dispatcher allocates RAM space and copies the driver from ROM to RAM.

•

Calls the utility entry point

•

Checks the parameters passed. If they are out of range or if too many are
passed, the dispatcher sends an illegal parameter message.

•

Prompts the user if more parameters are needed

•

Prompts the user if the utility being used will destroy any user data

•

Starts the utility

VAXstation 4000 VLC Firmware 3–5

VAXstation 4000 VLC Firmware
3.5 System ROM Overview

3.5 System ROM Overview
The VAXstation 4000 VLC system firmware contains 256K bytes of ROM split
into two 64K byte by sixteen-bit wide ROMs. This provides the 32-bit wide
memory data path shown in Figure 3–1.
Figure 3–1 System ROM Format
Word 1

Word 0

Byte 3

Byte 2

Byte 1

Byte 0

Base+00h

Byte 7

Byte 6

Byte 5

Byte 4

Base+04h

Byte 11

Byte 10

Byte 9

Byte 8

Base+08h

Byte 15

Byte 14

Byte 13

Byte 12

Base+0ch

LJ-00092-TI0

The firmware ROMs supply some information on a per byte basis for ease of
manufacture and development, and other information (software and tables) is
supplied by the set of ROM parts.

3.5.1 System ROM Part Format
•

Version (word 02h)
Contains the low eight bits of the version number of the console code for
the VAXstation 4000 VLC system firmware.

•

ROM byte number (byte 03h)
Indicates the position of the byte among the set of ROMs used to implement
the firmware. This value is equal to the low two bits of the physical
address of the first byte in the ROM part. The value ranges from 0 to 3.

3–6 VAXstation 4000 VLC Firmware

VAXstation 4000 VLC Firmware
3.5 System ROM Overview
•

Manufacturing check data (bytes 04h - 06h)
Used for a quick check of the ROM. The data are 55h, AAh, and 33h.

•

ROM part length (byte 07h)
Indicates the length of the ROM part divided by the data path width in
bytes.

•

Checksum (last byte)
Each ROM byte contains a simple eight-bit add and rotate checksum. In a
16-bit ROM the last two bytes contain a checksum: one checksum for each
byte address in the device.

3.5.2 System ROM Set Format
The physical addresses in the ROM set are fixed.
•

2004.000 processor restart address
The VAXstation 4000 VLC hardware begins execution at this address
At power-up
At the execution of a kernel mode halt instruction
When a break signal is received from the console device
When the HALT button is depressed
When the CPU detects a severe corruption of the operating
environment

•

2004.0004 SYS_TYPE
This longword is the System Type Register. The VAXstation 4000 VLC
system type value is 0401.0102.

•

2004.0008 reserved for ROM part data
These 24 bytes are reserved for information contained in each ROM byte.

•

2004.0020 interrupt vector numbers
These eleven longwords are used by the VAXstation 4000 VLC hardware as
part of the interrupt process.

VAXstation 4000 VLC Firmware 3–7

VAXstation 4000 VLC Firmware
3.5 System ROM Overview
•

2004.004C console I/O routines
There are eight I/O routines provided in the system ROM. Entry points for
these routines are located at longword intervals in this area.

•

2004.0070 reserved
Reserved so all ROM set data that follows is in the same relative position.

•

2004.0078 system console firmware revision number
This word contains the system console firmware revision number.

•

2004.007A system diagnostic firmware revision number
This word contains the system diagnostic firmware revision number.

•

2004.007C diagnostic descriptor
This longword contains the physical address of the beginning of the system
level diagnostic boot block. A value of zero indicates that there is no
system level diagnostic present in the firmware ROM.

•

2004.0080 pointers to keyboard map
These two longwords point to the tables used in translating the LK401
main array keycodes to character codes. The first longword contains the
physical address of the beginning of the keyboard tables. The second
longword contains the physical address of the beginning of the keyboard
mapping tables.

3–8 VAXstation 4000 VLC Firmware

VAXstation 4000 VLC Firmware
3.6 Configuration Table Overview

3.6 Configuration Table Overview
Information about the VAXstation 4000 VLC workstation devices is saved in
the system configuration tables by the power-up initialization code. The code
sizes the system by reading the ROM-based DCT and builds a memory resident
configuration data structure. Figure 3–2 shows how the data structures link
together.
Figure 3–2 Configuration Tables
Model
VLC
NVR

Scratch
RAM

Master
Config
Table

Device
Configuration
Table

LJ-01075-TI0

The power-up initialization code saves a pointer to the scratch RAM in NVR in
four consecutive bytes. The scratch RAM contains a pointer to the MCT at its
base address. The MCT contains pointers to the DCT.

VAXstation 4000 VLC Firmware 3–9

VAXstation 4000 VLC Firmware
3.6 Configuration Table Overview

3.6.1 Main Configuration Table
The main configuration table (MCT) contains a list of the devices in the system
and a pointer to the device configuration table for each device. The MCT is
built at power-up and resides in the diagnostic area in memory. The MCT
gives the test dispatcher a single interface into the various components of the
system. The MCT is shown in Figure 3–3.
Figure 3–3 Main Configuration Tables
Minor Version ID

Major Version ID

Number of Devices

Edit Version ID

Device ID

Pointer to Device Configuration Table
0

Device ID

Pointer to Device Configuration Table

Device ID

Pointer to Device Configuration Table

Number of Devices *8
(Number of Devices *8)+4
LJ-00104-TI0

The components of the Main Configuration Table are
•

Major version ID
The version number is used to track major changes in the diagnostic
interface.

•

Minor version ID
The version number is used to track minor changes in the diagnostic
interface.

•

Edit version ID
This is reserved for use by diagnostic developers.

•

Number of devices
This is the number of entries in the MCT table.
The next three fields are replicated for each device in the system.

3–10 VAXstation 4000 VLC Firmware

VAXstation 4000 VLC Firmware
3.6 Configuration Table Overview
•

Device ID
This is the device ID number/

•

Must be zero
This is reserved for future use.

•

Pointer-to-Device configuration table
This points to the DCT for this particular device.

3.6.2 Device Configuration Table
There is a device configuration table (DCT) entry for each device in the system.
The DCT contains extended information about the device, such as:
•

Device name

•

Diagnostic code location

•

Header information

The test dispatcher and the system test monitor use this data to fetch the
appropriate diagnostic code to execute from the ROM or to load into RAM. The
DCT is shown in Figure 3–4.
Note
In Figure 3–4 there is reference made to system test in elements 2C, 30
and 34. These elements currently do not exist in the VAXstation 4000
VLC, but may be added in future revisions.

The components of the Device Configuration Table are
•

Major Version ID
The version number is used to track major changes in the device diagnostic
routines.

•

Minor Version ID
The version number is used to track minor changes in the device diagnostic
routines.

VAXstation 4000 VLC Firmware 3–11

VAXstation 4000 VLC Firmware
3.6 Configuration Table Overview
Figure 3–4 Device Configuration Table
Minor Version ID

Major Version ID

Number of Devices

Edit Version ID

Device
Name

Pointer to Driver Descriptors

Device Status

Pointer to Extended Status

Size of Extended Status

Pointer to Extended Config

Pointer to Permanent Memory

Size of Permanent Memory

System Test Status

Pointer to Extended System Test Status

30
34

Size of Extended System Test Status
Flags

DPSIZE

DIRTYP

Physical Address of Module

Code Length

Entry Point Offset

Flags

DPSIZE

DIRTYP

((NBR_OF_DIRS-1)*10)+2C

Physical Address of Module
Code Length
Entry Point Offset
LJ-00105-TI0

•

Device ID
The device ID number.

3–12 VAXstation 4000 VLC Firmware

VAXstation 4000 VLC Firmware
3.6 Configuration Table Overview
•

Number of directories
This is the number of directory entries for the device. A directory entry
tells the user where to find a particular component of code for the device.

•

Device Name
The device name is ASCII. This is used by the show configuration utility
and the system test to display information about the device.

•

Pointer-to-Driver descriptors
The pointerss to the drive descriptor area associated with the device.

•

Device status
This is saved from the last time that the self test was run on the device.
The show configuration utility uses this field to display information about
the device. The device status is split into two words: the lower word is the
error field and the upper word is the FRU thought to be faulty.

•

Size of extended device status
This is the length of the extended device status in bytes. The extended
device status can be up to 16 longwords of information. The extended
status displays when the user enters the SHOW ERRORS command at the
console prompt.

•

Pointer-to-Extended-Device status
This points to any extended information that is saved by the device self
test.

•

Pointer-to-Extended-Configuration data
This points to extended configuration information about the device. For
example, the SCSI self test code uses this field to save a pointer to
information about the devices connected to the SCSI bus. The information
displays when the user enters the SHOW CONFIG command at the console
prompt.

•

Pointer to permanent memory allocated
This points to the permanent memory that has been allocated. The field is
filled in by the diagnostic the first time that it allocates memory.

VAXstation 4000 VLC Firmware 3–13

VAXstation 4000 VLC Firmware
3.6 Configuration Table Overview
•

Size of permanent memory allocated
This is the amount of permanent memory (in pages) that has been
allocated. This field is filled in by the diagnostic the first time that it
allocates memory.

•

System test status
Note that the VAXstation 4000 VLC system does not perform a system test.

•

Pointer-to-Extended-System-Test status
Note that the VAXstation 4000 VLC does not perform a system test.

•

Size of Extended System Test Status
Note that the VAXstation 4000 VLC does not perform a system test.

•

Directory type
Contains the type of directory entry that the previous elements refer to.
Table 3–1 lists the directory type.

Table 3–1 Directory Type Definitions
Definition

Meaning

Self test directory entry

2
3

Utility directory entry

Console routine directory entry

Unjam routine directory entry

Diagnostic driver directory entry

•

Data path size
This contains the data path size of the ROM in which the piece of code
resides. The path size is listed in Table 3–2.

Table 3–2 Data Path Size Definitions
Definition

Meaning

ROM width is one byte wide

ROM width is two bytes wide

ROM width is four bytes wide

•

Flags

3–14 VAXstation 4000 VLC Firmware

VAXstation 4000 VLC Firmware
3.6 Configuration Table Overview
This contains flag data associated with the particular device routine.
Table 3–3 lists the flag definitions.
Table 3–3 Flag Definitions
Definition

Meaning

Bit 15=1

Code must be loaded into RAM at power-up and memory marked as
unavailable to the operating system.

Bit 14=1

Code must be loaded into RAM to execute. The memory is released
after execution is complete.

Bit 13=1

Code has been loaded into RAM at power-up and memory marked as
unavailable to the operating system.

Bit 0=1

Code uses shared diagnostic driver.

•

Length of code
This contains the length of code in bytes.

•

Physical address of the module
This contains the physical address for this particular component of the
code.

•

Entry point offset
This contains the offset from the beginning of the code to where the entry
point is.

3.7 Driver Descriptor
Any device that provides a shared port driver or shared class driver must
provide a descriptor that tells the base system firmware, system test monitor,
and any other piece of software specific information about the drive. A driver
descriptor has the format shown in Figure 3–5.

VAXstation 4000 VLC Firmware 3–15

VAXstation 4000 VLC Firmware
3.7 Driver Descriptor
Figure 3–5 Driver Descriptor Data Structure

Device ID

Address of Driver

Length of Driver

Entry Point of Driver

Size of Driver Data Area

Address of Driver Data Area

Address of IO Segment Table

18
LJ-00106-TI0

The fields of the driver descriptor are
•

Device ID
Use this to ensure that the driver descriptor ID matches the function
block ID. This allows a function the ability to determine if it is being used
correctly.

•

Address of the driver
This contains the address of the device driver. This address may be a ROM
or RAM memory address.

•

Length of the driver
This contains the length of the device driver in bytes. This field is used by
both the base system ROM and the system test monitor to determine the
amount of code that needs to be loaded into RAM.

•

Entry point offset of the driver
This contains the number of bytes from the beginning of the device driver
to the INIT_DRIVER function.

•

Size of driver data area
This contains the length in bytes of the amount of memory that a driver
needs for its parameters and local data.

•

Address of the driver data area
This contains the address of the device driver data area that the driver
uses to store local data.

•

Address of the I/O segment table

3–16 VAXstation 4000 VLC Firmware

VAXstation 4000 VLC Firmware
3.7 Driver Descriptor
This contains the address of the I/O segment table.

3.8 Interfacing to Diagnostic Drivers
The Network device contains
•

Routines to UNJAM the device

•

Self-test routines

•

System test routines

•

Console routines

•

A shared diagnostic driver routine

Figure 3–6 shows how these pieces of code relate to each other.
Figure 3–6 Diagnostic Drive Console Support
Model
VLC
Console
Class
(Driver Description)

NI
Self-Test
(Driver Descriptor)

NI
System Test
(Driver Descriptor)

NI
Utilities
(Driver Descriptor)

NI
Diagnostic
Driver

LJ-01074-TI0

A user application performs console input/output to the network by calling the
console code which calls the network diagnostic driver. The console, self test,
system test, and UNJAM routines interface to the diagnostic driver in similar
ways. All diagnostic routines, utilities, and console routines
•

Allocate memory for the driver data area

•

Allocate memory for the diagnostic function block or console function block

•

Call the INIT_DRIVER routine with the following parameters:
Pointer to the I/O Segment Table
VAXstation 4000 VLC Firmware 3–17

VAXstation 4000 VLC Firmware
3.8 Interfacing to Diagnostic Drivers
Pointer to the Driver Data Area
Pointer to the Driver Function Block or Console Function Block
Pointer to the Shared Console Interface Area; or add zero if this is not
a console driver
As many as two additional device specific parameters

3–18 VAXstation 4000 VLC Firmware

VAXstation 4000 VLC Firmware
3.9 Console Driver Interface

3.9 Console Driver Interface
The VAXstation 4000 VLC system console code is split into a class/port
driver scheme. The class driver contains the main console functions, such
as PUT_CHARACTER and GET_CHARACTER. The port drivers contain the
device-specific code required to support this functionality. Figure 3–7 shows
the devision of the console functionality.
Figure 3–7 Console Structure

Console Class Driver

DZ Console
Port Driver

LCG Console
Port Driver

NI Console
Port Driver

Input
I

Serial Line
Controller

LCG
Controller

Lance
Device

LJ-00108-TI0

VAXstation 4000 VLC Firmware 3–19

VAXstation 4000 VLC Firmware
3.9 Console Driver Interface
The console device can require either one or two channels to perform I/O with
the console device. If the console device is a graphics terminal with an LK401
keyboard, the console program interfaces with the serial line device driver
for ASCII input and with the graphics device driver for output. If the console
device is a terminal connected to a serial line, the console responds to the serial
line driver for both input and output.
The console class driver contains the generic routines that interface to
the console and use applications to perform terminal input and output
transactions. The console class driver interfaces with the port driver depending
on the current console device.
If the console port driver does not support PUT_CHARACTER or GET_
CHARACTER functionality, it must interface with the appropriate port driver
to perform the needed function.

3.9.1 Shared Console Interface Area
The shared console interface area (SCIA) consists of a console class driver
descriptor and three port driver descriptors. The port driver descriptors can
be associated with a DZ port driver, a graphics output driver, and a network
driver.
The SCIA provides an interface to the console terminal that isolates the
implementation specifics of accessing the console terminal. It is designed to
allow the console drivers to run in both virtual and physical mode.
The SCIA is set up by the power-up initialization code. After it is set up, the
software can use this area to interface with the console class driver routine.
The shared console performs the following:
•

Raw character I/O to the console terminal

•

Higher level of I/O functions that handle XON/XOFF flow, ASCII bell
character, and LK401 keyboard translation are handled by the DZ driver.

•

Data structures that allow the system software to map all console code and
I/O space references into virtual memory as needed

The SCIA data structure is shown in Figure 3–8.

3–20 VAXstation 4000 VLC Firmware

VAXstation 4000 VLC Firmware
3.9 Console Driver Interface
Figure 3–8 SCIA Data Structure
Console Type
LK401 Keyboard Type
Address of US Font Table
Address of MCS Font Table
Address of Keyboard Translation Table
Address of Keyboard Map Table
Console Class Device ID
Console Class Driver Driver Descriptor
DZ Device ID
DZ Port Driver Driver Descriptor
Graphics Device ID
Graphics Port Driver Driver Descriptor
NI Device ID
NI Port Driver Driver Descriptor
VMS Debug Device ID
VMS Debug Port Device Driver

XXX Device ID
XXX Port Device Driver

LJ-00109-TI0

VAXstation 4000 VLC Firmware 3–21

VAXstation 4000 VLC Firmware
3.9 Console Driver Interface

3.9.2 Console Port Driver
The console port driver descriptor fields are the same as the console class
driver descriptors except the port driver contains pointers to the console port
level routines. The port driver supports all functions whether the device
supports console output only, or console I/O. Figure 3–9 shows the functional
block of the port driver.
Figure 3–9 Console Port Driver Function Block

Device Id
INIT_DRIVER Pointer
GETCHAR Pointer
PUTCHAR Pointer
RESET_INPUT Pointer
INIT _INPUT Pointer
RESET_OUTPUT Pointer
INIT_OUTPUT Pointer
LJ-00110-TI0

3–22 VAXstation 4000 VLC Firmware

4
Diagnostic Testing
This chapter describes the diagnostic testa, test commands, and error codes
provided with the VAXstation 4000 VLC system.

4.1 Diagnostic Testing
System troubleshooting involves several types of tests:
•

Power-Up Self Test
This test includes initialization and power-up testing of all devices.

•

Extended Self Test
This test executes when a user runs a self-test diagnostic by entering a
TEST command at the console prompt.

•

Utilities Test
This test provides tools to test and align a video monitor and initialize disk
drives.

Diagnostic Testing 4–1

Diagnostic Testing
4.1 Diagnostic Testing

4.1.1 Power-Up Test
Figure 4–1 depicts the console screen after a successful power-up test is
completed.
Figure 4–1 Successful Power-Up

KA48-A V1.0
32MB
08-00-2b-04-03-12
OK
>>>

LJ-001384-TI0

Figure 4–2 depicts the console screen after an unsuccessful power-up test is
completed.

4–2 Diagnostic Testing

Diagnostic Testing
4.1 Diagnostic Testing
Figure 4–2 Unsuccessful Power-Up

KA44-A V1.0
32MB
08-00-2b-04-03-12

001 6 SCSI 0034
>>>

LJ-01385-TI0

Error information is given in the following format:
Fru Dev_nbr Dev_nam Err_nbr

Message

Meaning

Fru

The name of the failed FRU

Dev_nbr

Device number of the failed device

Dev_nam

Device name of the failed device

Err_nbr

A decimal number that corresponds with a specific device failure.
The number refers to specific error tables for problem isolation and
repair procedures.

Diagnostic Testing 4–3

Diagnostic Testing
4.1 Diagnostic Testing

4.1.2 Displaying System Configuration
The VAXstation 4000 VLC system firmware provides two commands that
determine what type of mass storage devices are included in the system and
what the overall system configuration is.
To determine the presence of storage devices such as a hard disks, diskette
drives, or other drives, at the console prompt enter the SHOW DEVICE
command.
The SHOW DEVICE command results in the information shown in
Example 4–1.
Example 4–1 SHOW DEVICE Command
>>> SHOW DEVICE
VMS/VMB
------ESA0
DKA100
DKA300
MKA500
..HostID..
DKA700

ADDR
DEVTYPE
---------08-00-2B-17-EA-FD
A/1/0
DISK
A/3/0
RODISK
A/5/0
TAPE
INITR
A/7/0
DISK

NUMBYTES
--------

RM/FX WP DEVNAM
----- -- ------

REV
---

121 MB
594 MB

FX
RM
RM

RZ23L
WP RRD42
TZK10

1F25
1.1A
00AD

332 MB

RZ55

0900

!Column Meanings:
VMS/VMB
ADDR

- The VMS device name, and console boot name for the device.
- Ethernet hardware address or SCSI device ID.
The SCSI device ID has the format:
A/DEVICE_ID/LOGICAL_ID
The LOGICAL ID is always 0.

DEVTYPE - Device type, RODISK is a read-only disk (CDROM).
NUMBYTES - Drive capacity. Capacity is not be displayed for empty
removable media drives
RM/FX
- Indicates whether the drive has removable or fixed media.
WP
- Indicates whether the drive is write protected.
DEVNAM
- Device name for the drive.
REV
- Firmware revision level for the drive.

4–4 Diagnostic Testing

Diagnostic Testing
4.1 Diagnostic Testing
To determine the presence of devices other than internal storage devices and
to determine the quantity of memory in the system, enter the SHOW CONFIG
command at the console prompt.
The system presents a configuration table similar to Example 4–2.
Example 4–2 Sample Show Config Display

Diagnostic Testing 4–5

Diagnostic Testing
4.1 Diagnostic Testing

4.1.3 Displaying System Errors
To obtain detailed error information about any failing device in the system
use the SHOW ERROR utility. To determine if an error has occurred on a
particular device, enter the SHOW ERROR command followed by the device
number. To show all of the system errors, enter the command without a device
number. If errors are present, a message similar to Example 4–3 is presented.

Example 4–3 Sample Showing System Errors

Error information is given in the following format:
Fru Dev_nbr Dev_nam Err_nbr

Message

Meaning

Fru

The name of the failed FRU

Dev_nbr

Device number of the failed device

Dev_nam

Device name of the failed device

Err_nbr

A decimal number that corresponds with a specific device failure.
The number refers to specific error tables for problem isolation and
repair procedures.

4–6 Diagnostic Testing

Diagnostic Testing
4.2 Running the Self Test

4.2 Running the Self Test
Table 4–1 shows the format conventions for running the self test using the
TEST command.
Table 4–1 Running Self Test Using the Test Command
Command

Action

T d1

Run the self test on device number d1

T d1:d2

Run the self test on devices numberered d1 through d2

T d1,d2

Run the self test on devices d1 and d2

Example
T 10:8,6,5:3 tests devices 10 through 8, then device 6, and then devices 5
through 3)
Figure 4–3 is a sample of the console display when a successful and
unsuccessful self test has been run.
Figure 4–3 Successful and Unsuccessful Self Test

Successful

Unsuccessful

>>> T 10:8
+--------------+

>>>

001 09 FB 0022
>>>

LJ-01382-TI0

The error message format is the same as the power-up self-test error message
shown in Figure 4–2.

Diagnostic Testing 4–7

Diagnostic Testing
4.2 Running the Self Test
Table 4–2 lists the VAXstation 4000 VLC system configuration modules and
the associated self-test commands.
Table 4–2 Device Number and Self-Test Commands
Number

Mnemonic

Name

Self-Test Command

NVR

Non-volatile RAM

T1 or T NVR

LCG

Low cost graphics

T2 or T LCG

Serial line controller

T3 or T DZ

cache

Cache memory

T4 or T CACHE

mem

Memory

T5 or T MEM

FPU

Floating point unit

T6 or T FPU

Interval timer

T7 or T IT

SYS

Miscellaneous system board
hardware

T8 or T SYS

Network interface

T9 or T NI

SCSI

Network SCSI controller

T10 or T SCSI

AUD

Sound chip

T11 or T AUD

The different self tests are described in the following tables.
4.2.0.1 TOY/NVR Self Test

Self Test

Function

NVR

Checks the non-volital RAM for valid data. If the NVR is not
initialized, a register test is performed on all NVR locations and the
NVR is initialized. If the NVR is initialized, ONLY the temporary
locations in the NVR are tested.

TOY

Determines if the time has been set in the TOY clock. If not, all
the TOY registers are tested. This test writes and reads all possible
values that a TOY register can hold.

Table 4–1 and Table 4–2 provide information on how to run the TOY and NVR
self tests. Refer to Section A.1.1 for a list of the TOY and NVR error codes and
Section B.1.2 for a list of the TOY and NVR diagnostic LED codes.

4–8 Diagnostic Testing

Diagnostic Testing
4.2 Running the Self Test
4.2.0.2 LCG Self Tests

Self Test

Function

Video Test

Tests the communication between the S-chip and VRAM. It
initializes the brooktree, sets up the video screen, and sets up
the video registers in the S-chip.

Uses the longword format to read/write test all LCG S-chip registers.

FIFO Test

Creates a FIFO and clip list in the contiguous physical memory and
tests set up packets, int/status bits, put/get pointers, FIFO, and clip
control flags, FIFO status bits, and ensures that the FIFO can be
reset.

AG Test

Calls all of the LCG address generator-specific self-test routines.
These routines test the drawing functions, logic unit functions, and
glyph functions.

Virtual
Addressing
Mode Test

Calls all of the LCG virtual drawing-specific self-test routines.

Note
The LCG self test does not run in user mode (diagenv 1) as it clears
the console. Refer to Section 4.4.2.5 for information on Diagenv
parameters.

Refer to Table 4–1 and Table 4–2 for information on how to run the LCG self
test. Refer to Section A.1.11 for a list of the LCG self-test error codes and
Section B.1.7 for a list of the LCG diagnostic LED codes.
Note
The low resolution frame buffer clock jumpers must be correctly
installed before power-up.
The panel Alternate Console switch must be down for graphics console
and up for the DZ port.

Diagnostic Testing 4–9

Diagnostic Testing
4.2 Running the Self Test
4.2.0.3 DZ Self Test

Self Test

Function

Reset Test

Resets the DZ chip and sets up the lines to default values. An error
occurs if the device does not reset or the line parameters are not set
up correctly.

Polled Test

Test each line in the internal loopback mode by using the chip in the
polled mode. Characters are transmitted out a line and are expected
to be looped back.

Interrupt Test

Tests each line by running interrupt driven. If the diagnostic
environment is Digital Services or Manufacturing, the lines are
tested using an external loopback device on the communication port.
Interrupts are disabled and characters are sent out the lines not in
use by the console device. The characters are expected to be looped
back.

LK401 Test

Checks for the presence of a LK401 keyboard when the console
device is a video device.

Mouse Test

Checks for the presence of a mouse when the console device is a
video device.

Refer to Table 4–1 and Table 4–2 for information on running the DZ self test.
Refer to Section A.1.2 for a list of the DZ self-test error codes and Section B.1.3
for a list of the DZ diagnostic LED codes.
Note
The DZ interrupt test fails in the Customer Service or Manufacturing
environments if external loopbacks are not present on the communication port.
The mouse test fails if the mouse is not plugged in and the console is a
video device.

4–10 Diagnostic Testing

Diagnostic Testing
4.2 Running the Self Test
4.2.0.4 Cache Self Test

Self Test

Function

DATA Store
Test

Tests the data store in the SOC primary cache. A two-pass memory
test is performed on the data store. Performs a read/compare
/complement/write in forward and reverse directions. The data store
is accessed through the I/O address space. Only the cache banks
enabled in the BEHR are tested.

TAG Store Test

Tests the tag store in the SOC primary cache. A two-pass memory
test is performed on the tag store. Performs a read/compare
/complement/write in forward and reverse directions. The tag store
is accessed through the I/O address space. Only the cache banks
enabled in the BEHR are tested.

Refer to Table 4–1 and Table 4–2 for information on running the cache self
test. Refer to Section A.1.10 for a list of the cache self-test error codes and
Section B.1.10 for a list of cache self-test diagnostic LED codes.
4.2.0.5 System Self Test

Self Test

Function

System ROM

Checks the system ROMs one byte at a time to ensure that they
contain the correct manufacturing check data and correct checksum.

Filter RAM

Makes two passes on the invalidate filter RAMs. The test detects all
stuck addressing and data faults.

Refer to Table 4–1 and Table 4–2 for information on how to run the SYS
self test. Refer to Section A.1.6 for a list of system self-test error codes and
Section B.1.5 for a list of system self-test diagnostic LED codes.
4.2.0.6 Floating Point Unit Self Test

Self Test

Function

Instruction
Tests

Performed on the floating point unit (FPU). A failure occurs if the
instruction produces unexpected results during execution of the
instruction.

Refer to Table 4–1 and Table 4–2 for information on how to run the FPU self
test. Refer to Section A.1.9 for a list of FPU self-test error codes.

Diagnostic Testing 4–11

Diagnostic Testing
4.2 Running the Self Test
4.2.0.7 Interval Timer Self Test

Self Test

Function

Interrupt Test

Enables the interval timer interrupts. It lowers the IPL for 30 ms
and counts the number of interrupts. If there are too few or too
many interrupts, an error occurs.

Refer to Table 4–1 and Table 4–2 for information on how to run the IT self test.
Refer to Section A.1.5 for a list of IT self-test error codes.
4.2.0.8 Memory Self Test

Self Test

Function

Byte Mask Test

Checks the byte mask signals generated by the CPU. This test is
performed on each page boundary. Once the test is complete, all free
memory is filled with AAh.

Memory Test
(forward)

A read/compare/complement/write is performed on the memory in
the forward direction. If a page is found to be bad, the appropriate
bit in the memory bitmap is cleared.

Memory Test
(reverse)

Starts at the last address to be tested and performs a read/compare
/complement/write on memory. If a page is found to be bad, the
appropriate bit in the memory bitmap is cleared.

Final Parity

Fills all of memory with a pattern of 01h (an odd bit pattern) to
verify that the parity bit can be changed. A parity error occurs if the
parity bit is not changed. The pattern 01010101h is the known state
of unused memory after power-up.

Refer to Table 4–1 and Table 4–2 for information on how to run the Memory
self test. Refer to Section A.1.3 for a list of memory self-test error codes and
Section B.1.4 for a list of memory self-test diagnostic LED codes.
Note
If memory modules are not configured correctly, the memory self test
fails and those modules are not configured.

4–12 Diagnostic Testing

Diagnostic Testing
4.2 Running the Self Test
4.2.0.9 Network Interconnect Self Test

Self Test

Function

Network
Address ROM
Test

Verifies the 32 byte network address ROM that contains the unique
6-byte network address and the 2-byte checksum and test data byte.
It checks for a null or multicast address, calculates/compares the
checksum, and verifies the test data bytes.

LANCE
Register Test

Tests the address and data paths to the LANCE register address
port (RAP) and the register data port (RDP) for each of the four
control status registers (CSRs).

LANCE
Initialization
Test

Sets up the LANCE data structures and initializes the LANCE
chip, causing the LANCE to perform a single word DMA read to the
system memory.

LANCE
Internal
Loopback

Verifies the correct operation of the LANCE transmitter and receiver
during an internal loopback, and verifies the burst-mode DMA read
and write on non-word-aligned data buffers for packets of different
lengths and data patterns.

LANCE
Interrupt Test

Enables, forces, and services the LANCE interrupts for initialization, transmission, and reception using internal loopback.

LANCE CRC
Test

Tests the LANCE CRC generation on transmission. It checks for
detection of a bad CRC on reception using internal loopback.

LANCE Receive
MISS/BUFF
Test

Checks LANCE operation for missed packets and buffer error during
reception with internal loopback.

LANCE
Collision Test

Verifies collision detection and retry during transmission with
internal loopback.

LANCE Address
Filtering Test

Tests the LANCE receiver address filtering for broadcast,
promiscuous, and null destinations during internal loopback.

Refer to Table 4–1 and Table 4–2 for information on how to run the NI self
test. Refer to Section A.1.12 for a complete list of NI self tests and their error
codes and Section B.1.8 for a list of NI self-test diagnostic LED codes.
Note
You must install an external loopback connector or a network
connection (cable) at the selected network port before running the
self test.

Diagnostic Testing 4–13

Diagnostic Testing
4.2 Running the Self Test
4.2.0.10 SCSI Self Test

Self Test

Function

Verifies that the 53C94B controller chip registers are fully
functional. All read/write bits that can be written are written
to. It also verify the bits.

Interrupt Test

Verifies the SCSI bits in the interrupt mask register, interrupt
request register, and the interrupt clear register. A SCSI interrupt
forced, with the SCSI bit in the interrupt mask first set and then
cleared. This is repeated for both a high interrupt priority level and
a low priority level.

Data Transfer
Test

Verifies SCSI bus communication between the controller and the
available peripherals and also verifies the data path of the controller
to the S-chip and to memory. A series of four inquiry commands are
issued to each device. The commands are issued in the programmed
I/O mode, asynchronous mode with DMA, asynchronous mode with
the DMA starting on a non-word-aligned boundary and crossing a
page boundary, and synchronous mode with DMA.

Refer to Table 4–1 and Table 4–2 for information on how to run the SCSI
self test. Refer to Section A.1.7 for a list of SCSI self-test error codes and to
Section B.1.6 for a list of SCSI self-test diagnostic LED codes.
Note
CDROM devices will fail in extended mode if media is not installed in
removable media drive.
If some or all devices do not show up in the configuration display after
running the self test, make sure all devices have a unique ID number
and that power is supplied to all devices and the system module. Be
sure the SCSI cable is connected to the system module and devices, and
that the bus is terminated.

4.2.0.11 Audio Self Test

Self Test

Function

Performs a write/read to registers in the 79C30 DSC chip.

4–14 Diagnostic Testing

Diagnostic Testing
4.2 Running the Self Test
Self Test

Function

Interrupt Test

Enables interrupts, and sends and receives an 8-byte packet by way
of internal loopback.

Audio Test

Generates and outputs a sequence of 8 audible tones.

Refer to Table 4–1 and Table 4–2 for information on how to run the Audio self
test. Refer to Section A.1.8 for a list of Audio self-test error codes.

4.3 Utilities
These test commands run or display the available utilities. Utilities can be
run with all parameters input at the command line or the utility prompts for
additional input when necessary. The format of a utility run completely from
the command line is
>>> T [EST]/UT[ility] dev_nbr util_nbr opt_p1,...,opt_pn
dev_nbr

The number of the device on which you want to run the
utility

util_nbr

The number of the utility that you want to run. The
devices can have more than one utility.

opt_p1,...,opt_pn

Optional parameters possibly needed by a utility. For
example, a SCSI utility could need to know the target ID
of the device to run the utility on.

If you are unfamiliar with the utilities on a particular device, enter the
TEST/UTILITY command followed by the device number or name. The utility
prompts for additional information if needed. For example, if you want to run
an LCG utility, first type enter T/UT 2. The LCG main utility routine displays
a list of available utilities (see Figure 4–4). Then the prompt LCG_util>>>
displays. Enter the number of the utility that you want to run. In this
example, utility 8 is selected.

Diagnostic Testing 4–15

Diagnostic Testing
4.3 Utilities
Figure 4–4 Utilities List

>>> T/UT 2
0 - LCG-WH-SCRN
1 - LCG-RD-SCRN
2 - LCG-BL-SCRN
3 - LCG-GN-SCRN
4 - LCG-4C-CBAR
5 - LCG-8C-CBAR
6 - LCG-8G-GSCL
7 - LCG-EE-SCRN
8 - LCG-CI-XHCT

LCG_util>>> 8

LJ-01383-TI0

Control returns to the console if you enter an illegal utility number.
If you run a utility that will destroy the contents of a mass storage device, the
following displays:
dev_nam OK ?
dev_nam

Device whose contents will be lost.

Enter OK followed by Return to start the utility. If any other combination of
keys are entered control is returned to the console.

4–16 Diagnostic Testing

Diagnostic Testing
4.4 System Console

4.4 System Console
This section describes the standard console commands for the VAXstation 4000
VLC system. The console commands are divided into three functional groups.
•

SET/SHOW Commands
Use these commands to set or examine system parameters and
configuration.

•

Memory Commands
These include the DEPOSIT, EXAMINE, FIND, MOVE, and SEARCH
commands.

•

Processor Control Commands
These commands are BOOT, CONTINUE, HALT, INIT, START, and
UNJAM.

•

Miscellaneous Commands
HELP or ?, LOGIN, and REPEAT.

Diagnostic Testing 4–17

Diagnostic Testing
4.4 System Console

4.4.1 SET and SHOW Commands
Use the SET and SHOW commands to set and examine system parameters.
Table 4–3 lists the SET and SHOW parameters and their meanings.
Table 4–3 SET and SHOW Parameters
Parameter

Meaning

BFLG

Default bootflag

BOOT

Default boot device

CONFIG

System configuration

DEVICE

Ethernet and SCSI devices information

DIAGENV

Diagnostic environment (mode)

ETHER

Ethernet hardware address

ERROR

Errors from the last system or self test

ESTAT

Status from the last system test

FBOOT

Powerup memory test flag

HALT

Halt recovery action

KBD

Keyboard language

MEM

Memory address range

MOP

MOP listener

PSE

Password enable

PSWD

Password

SCSI

System SCSI ID

TRIGGER

Enable network console

VER

System ROM version

4–18 Diagnostic Testing

Diagnostic Testing
4.4 System Console
4.4.1.1 SET and SHOW Command Syntax
The SET and SHOW command syntax is
>>> SHOW parameter
>>> SET parameter value
Example:
>>> SHOW BOOT
>>> SET BOOT DKA200:

4.4.2 SET and SHOW Parameters
This section describes each of the SET and SHOW parameters.
4.4.2.1 BFLG
The BFLG parameter is the default bootflag. It is equivalent to R5:xxxxxxxx in
the boot command. BFLG is normally set to 0.
Example:
>>> SET BFLG 00000001

! Set BLFG to
conversational boot

BFLG = 00000001
>>> SHOW BFLG
BLFG = 00000001

Diagnostic Testing 4–19

Diagnostic Testing
4.4 System Console
4.4.2.2 BOOT
The BOOT parameter is the default boot device. The boot device can be set to a
bootable SCSI drive or the network device. To see the valid device boot names,
enter the SHOW DEVICE command. The first column lists the boot names.
Example:
>>> SET BOOT DKA200
BOOT = DKA200
>>> SHOW BOOT
BOOT = DKA200
4.4.2.3 CONFIG
The CONFIG parameter displays the system configuration and device status.
The SET command does not apply to this parameter. Use the SHOW DEVICE
command for more information on SCSI devices.
Example:
>>> SHOW CONFIG
KA48-A BL3-186-B3.1
08-00-2B-F3-31-03
16 MB
DEVNBR DEVNAM INFO
------ ------ ---1
NVR
OK
2
LCG
HR - 8 PLN FB - 2.7
3
DZ
OK
4
CACHE OK
5
MEM
OK
16MB = SY=8MB, S0/S1=8MB, S2/S3=0MB, S4/S5=0MB
6
7
8
9
10

FPU
IT
SYS
NI
SCSI

AUD

4–20 Diagnostic Testing

OK
OK
OK
OK
OK
1-RZ23L 6-INITR
OK

Diagnostic Testing
4.4 System Console
4.4.2.4 DEVICE
The DEVICE parameter displays SCSI and Ethernet device information. The
SET command does not apply to this parameter.
Example:
>>> SHOW DEVICE
VMS/VMB
------ESA0
DKA100
DKA300
MKA500
..HostID..
DKA700

ADDR
DEVTYPE
---------08-00-2B-17-EA-FD
A/1/0
DISK
A/3/0
RODISK
A/5/0
TAPE
INITR
A/7/0
DISK

NUMBYTES
--------

RM/FX WP DEVNAM
----- -- ------

REV
---

121 MB
594 MB

FX
RM
RM

RZ23L
WP RRD42
TZK10

1F25
1.1A
00AD

332 MB

RZ55

0900

!Column Meanings:
VMS/VMB
ADDR

- The VMS device name, and console boot name for the device.
- Ethernet hardware address or SCSI device ID.
The SCSI device ID has the format:
A/DEVICE_ID/LOGICAL_ID
The LOGICAL ID is always 0.

Diagnostic Testing 4–21

Diagnostic Testing
4.4 System Console
4.4.2.5 DIAGENV
The DIAGENV parameter determines the diagnostic environment that the
diagnostics run under. Table 4–4 lists the diagnostic environments and their
usage.
Table 4–4 Diagnostic Environments
Mode

Usage

Customer

No setup is required.
Default mode on powerup.

Customer Service

Provides a more thorough test than in customer mode.
Some tests require loopback connectors for successful completion.

Manufacturing

Some tests require loopback connectors for successful completion.

Loop on error;
Customer Service

The system loops on a test when an error occurs.

Loop on error;
Manufacturing

The system loops on a test when an error occurs.

To set the diagnostic environment, enter a console command listed in
Table 4–5.

Table 4–5 SET DIAGENV Command
Command

Result

SET DIAGENV 1

Resets environment to Customer mode.

SET DIAGENV 2

Sets environment to Customer Service mode.

SET DIAGENV 3

Sets environment to Manufacturing mode.

SET DIAGENV 80000001

Sets environment to loop on error in Customer
Service mode.

SET DIAGENV 80000002

Sets environment to loop on error in Manufacturing
mode.

4–22 Diagnostic Testing

Diagnostic Testing
4.4 System Console
Example:
>>> SET DIAGENV 2
DIAGENV = 2
>>> SHOW DIAGENV
DIAGENV = 2
4.4.2.6 ERROR
The ERROR parameter displays extended error information about any errors
that occur during the last execution of:
•

Powerup self test

•

Extended self test

•

System test.

The SET command does not apply.
Example:
>>> SHOW ERROR
?? 150 10 SCSI 0032
150 000E 00000005 001D001D 03200000 00000024
(cont.) 00000002 00000000 00000004
4.4.2.7 ETHER
The ETHER parameter displays the Ethernet hardware address. The SET
command does not apply.
Example:
>>> SHOW ETHER
ETHERNET = 08-00-2B-1B-48-E3

Diagnostic Testing 4–23

Diagnostic Testing
4.4 System Console
4.4.2.8 FBOOT
The FBOOT (fast boot) parameter determines whether the memory is tested
on powerup. The powerup test time is reduced when main memory and FB
memory are not tested.
•

When FBOOT = 0 the memory is tested on powerup.

•

When FBOOT = 1 the memory test is not done on powerup.

•

The setting only affects the powerup test.

•

FBOOT should only be set to 1 when troubleshooting requires a number of
power cycles and memory is not the suspected fault.

Example:
>>> SET FBOOT 1

! Enables fast powerup test.

FBOOT = 1
>>> SHOW FBOOT
FBOOT = 1
4.4.2.9 HALT
The HALT parameter determines the recovery action that the system takes
after powerup, system crash, or halt. The following table lists the HALT
parameter values and their meanings:
Value

Meaning

Systems tries to restart operating system. If restart fails, then the
system tries to reboot.

System tries to reboot.

System halts and enters console mode.

Example:
>>> SET HALT 2
HALT = 2
>>> SHOW HALT
HALT = 2

4–24 Diagnostic Testing

Diagnostic Testing
4.4 System Console
4.4.2.10 KBD
The KBD parameter determines the keyboard language.
•

The SHOW KBD command displays the numeric keyboard code only.

•

The SET KBD command displays the language choices and the numeric
code.

Example:
>>> SET KBD
0) Dansk
8) Francais (Suisse Romande)
1) Deutsch
9) Italiano
2) Deutsch (Schweiz)
10) Nederlands
3) English
11) Norsk
4) English (British/Irish) 12) Portugues
5) Espanol
13) Suomi
6) Francais
14) Svenska
7) Francais (Canadian)
15) Vlaams
3 >>> 4

! Enter numeric code

>>> SHOW KBD
KBD = 4
4.4.2.11 MEM
The MEM parameter displays the memory address range and the unavailable
memory address range. The unavailable range is memory the console uses,
and memory that is marked unavailable by the diagnostics. The SET command
does not apply.
Example:
>>> SHOW MEM
MEM_TOP = 01000000
MEM_BOT = 00000000
MEM_NOT_AVAIL
----------------00FC0800:00FFFFFF

Diagnostic Testing 4–25

Diagnostic Testing
4.4 System Console
4.4.2.12 MOP
The MOP bit enables the NI (Ethernet) listener while the system is in console
mode. The listener can send and receive messages on the network. The default
mode is listener enabled (MOP = 1).
Example:
>>> SET MOP 1
MOP = 1
>>> SHOW MOP
MOP = 1
4.4.2.13 PSE and PSWD
The PSE parameter is the enable console password bit. This enables the
console password to restrict access to the console. You use the PSWD
parameter to set the console password.
Remember these key points.
•

The password must be exactly 16 characters.

•

Valid password characters are numbers 0 through 9 and letters A through
F only.

•

The password feature is enabled when PSE = 1.

•

The password feature is disabled when PSE = 0.

•

SHOW PSWD does not apply.

Example:
>>> SET PSWD
PSDW0>>> xxxxxxxxxxxxxxxx
PSWD1>>> 1234567890ABCDEF
PSWD2>>> 1234567890ABCDEF
>>> SET PSE 1
PSE = 1

4–26 Diagnostic Testing

! Old password (only if a
password has been
previously set)
! New password
! Verify new password

Diagnostic Testing
4.4 System Console
4.4.2.14 SCSI
This parameter is the SCSI ID for the system; it should be set to 6. The system
SCSI ID should never be changed.
Example:
>>> SHOW SCSI
SCSI = 6
4.4.2.15 TRIGGER
The TRIGGER bit enables the Entity-Based Module (EMB). With EMB and the
NI listener enabled (TRIGGER = 1, MOP = 1) you can access the console or
boot the system from a remote system.
Example:
>>> SHOW TRIGGER
TRIGGER = 0
>>> SET TRIGGER 1
TRIGGER = 1
4.4.2.16 VER
The VER parameter displays the system ROM version. The SET command
does not apply.
Example:
>>> SHOW VER
VER = V1.0

Diagnostic Testing 4–27

Diagnostic Testing
4.4 System Console

4.4.3 Memory Commands
There are three memory commands you use to manipulate memory and
registers. They are essentially the same as other VAX workstaion commands.
Command

Function

DEPOSIT

Enter a value(s) into memory location(s) or register(s).

EXAMINE

Display the contents of memory location(s) or register(s).

FIND

Finds a good section of memory or restart parameter block.

4.4.3.1 DEPOSIT Commands
Use the DEPOSIT command to write to memory locations from the console.
Syntax:
DEPOSIT /QUALIFIERS ADDRESS DATA
The qualifiers can specify the following:
•

Data size:
/B - byte (8 bits)
/W - word (16 bits)
/L - longword (32 bits)
/Q - quadword (64 bits)

•

Address type:
/V - virtual address
/P - physical address
/I - internal processor register
/G - general purpose register
/M - machine register

4–28 Diagnostic Testing

Diagnostic Testing
4.4 System Console
•

Range of addresses:
/N:X specifies that the X+1 locations be written with the value specified by
DATA.

•

Protection:
/U unprotects a protected memory location. An example of a protected area
is the area of memory that the console uses.

The ADDRESS specifies the address (or first address) to be written.
DATA values must be given in HEX.
Example:
!This example writes the value 01234567 into 6 longword
!locations starting at address 00100000.
>>> DEPOSIT/P/N:5 00100000 01234567
P 00100000 01234567
P 00100004 01234567
P 00100008 01234567
P 0010000C 01234567
P 00100010 01234567
P 00100014 01234567
4.4.3.2 EXAMINE Commands
Use the EXAMINE command to display specific memory locations from the
console.
Syntax:
EXAMINE /QUALIFIERS ADDRESS
The qualifiers can specify the following:
•

Data size:
/B - byte (8 bits)
/W - word (16 bits)
/L - longword (32 bits)
/Q - quadword (64 bits)

•

Address type:
/V - virtual address
/P - physical address

Diagnostic Testing 4–29

Diagnostic Testing
4.4 System Console
/I - internal processor register
/G - general purpose register
/M - machine register
•

Range of addresses:
/N:X specifies that the X+1 locations be written.

•

Protection:
/U unprotects a protected memory location. An example of a protected area
is the area of memory that the console uses.

The ADDRESS specifies the address (or first address) to be read.
Example:
!This example reads the Ethernet hardware address.
>>> EXAMINE/P/N:5 20090000
P 20090000 0000FF08
P 20090004 0000FF00
P 20090008 0000FF2B
P 2009000C 0000FF1B
P 20090010 0000FF48
P 20090014 0000FFE3

4–30 Diagnostic Testing

Diagnostic Testing
4.4 System Console
4.4.3.3 FIND
Use the FIND command to search memory for either:
•

A page-aligned 128KB segment of good memory

•

A restart parameter block (RPB)

If the segment is found, the starting address plus 512 is left in the stack
pointer (SP)
If the segment is not found an error message displays.
Syntax:
>>> FIND /qualifier
Qualifier

Meaning

/MEMORY
/RPB

128 kb section of memory
restart parameter block

4.4.4 Processor Control Commands
The following are the processor control commands. The commands are
essentially the same as other VAX workstations commands.
Command

Function

BOOT

Bootstraps the operating system

CONTINUE

Starts the CPU running at the current program counter (PC)

HALT

Stops the CPU

INITIALIZE

Initializes processor registers

START

Starts the CPU at a given address

UNJAM

Sets devices to an initial state

Diagnostic Testing 4–31

Diagnostic Testing
4.4 System Console
4.4.4.1 BOOT
The boot command starts the bootloader that loads the operating system and
starts it. The boot command causes the system to exit console mode and enter
program mode.
Syntax:
>>> boot /qualifier

device,

second_device

The following table describes the command syntax.
Term

Meaning

/qualifier

Sets the value for R5 for the bootloader. Used to select a boot
on the disk, or a conversational boot. The qualifier can be
specified in either of the following formats:
•

/R5:XXXXXXXX

•

/XXXXXXXX

device

The primary boot device. If no device is specified, the system
attempts to boot the default device. Set the default boot device
with the SET BOOT command.

second_device

The device the bootloader tries to boot if the primary boot
device fails.

Example:
>>> BOOT /R5:00000001 DKA200, DKA400
In the example, the system tries to perform a conversational boot from
DKA200. If the system cannot boot from DKA200, it tries a conversational
boot from DKA400.

4–32 Diagnostic Testing

Diagnostic Testing
4.4 System Console
4.4.4.2 CONTINUE
The CONTINUE command switches the system from console mode to program
mode. The CPU starts running at the current program counter.
Example:
>>> CONTINUE

4.4.5 INITIALIZE and UNJAM
UNJAM resets the system devices. The INITIALIZE command resets the
processor registers. Together these commands reset the system. UNJAM must
be entered first.
Example:
>>>UNJAM
>>>INITIALIZE
4.4.5.1 START
Use the Start command to set the program counter and start the CPU. The
command causes the system to exit console mode and enter program mode.
Syntax:
>>> START ADDRESS
! ADDRESS is the value loaded into the PC.
Example:
!This example starts the bootloader.
>>> START 200

Diagnostic Testing 4–33

Diagnostic Testing
4.4 System Console
4.4.5.2 Miscellaneous Console Commands
The following are miscellaneous console commands.
Command

Function

HELP or ?

Lists console commands and syntax.

Enables restricted console commands when PSE and PSWD are set.

REPEAT

Continuously repeats a console command.

4.4.5.3 HELP or ?
The HELP command or the question mark (?) list the console commands and
the syntax allowed with each command.
4.4.5.4 LOGIN
The LOGIN command enables restricted console commands when the PSE bit
is set. Enter the console password on the line following the LOGIN command.
4.4.5.5 REPEAT
The REPEAT command repeats a console command entered on the same line
as and following REPEAT.
•

BOOT, INIT, and UNJAM cannot be repeated.

•

The command is terminated by CRTL C.

Example:
>>> REPEAT TEST MEM ! Repeats the memory test.
.
.
.
CTRL C
! Terminates test.
>>>

4–34 Diagnostic Testing

5
Removing and Replacing FRUs
This chapter describes how to remove and replace the field replaceable units
(FRUs) in the VAXstation 4000 VLC system box. Table D–1 lists the VLC
FRUs and their part numbers.
Each section describes the removal procedure for the FRU. Unless otherwise
specified, you install a FRU by reversing the steps in the removal procedure.

5.1 Cautions and Warnings
Removing and replacing FRUs must be done by only Digital Services personnel
or maintenance personnel trained specifically by Digital.
Note
It is the customer’s responsibility to back up all software before the
Digital Services Representative arrives. This ensures that data is
not lost during the service process. The customer should also shut
down the workstation software. Before performing any maintenance
work, Digital Services personnel must confirm that the customer has
completed both of these tasks.

caution
Electrostatic discharge (ESD) can damage integrated circuits. Always
use a grounded wrist strap (part number 29-11762-00) and worksurface-to-earth ground when removing and replacing any FRU.

warning
Turn power to the mointor off, then disconnect the power cord from the
power source before performing any of these procedures.

Removing and Replacing FRUs 5–1

Removing and Replacing FRUs
5.1 Cautions and Warnings

5.2 VAXstation 4000 VLC FRUs
Figure 5–1 shows the location of the VAXstation 4000 VLC system FRUs.
CPU module (PN 54-20768-01)
Power supply (PN H7109-00)

RZ23L 121Mbyte disk drive (PN RZ23-E)

Memory modules (PN 20-36110-05)

LCG Graphics/Audio module (PN 54-20772-01)
Figure 5–1 Location of System Box FRUs
4

J2
J3
J4
J5
J6

38%

22%

2
1
LJ-00960-TI0

5–2 Removing and Replacing FRUs

Removing and Replacing FRUs
5.2 VAXstation 4000 VLC FRUs
The I/O panel located at the rear of the system box provides for connection of external
devices to the system. Figure 5–2 shows the rear of the system box and its I/O
connectors.
Diagnostic LEDs
Video monitor connector

Printer/Console port

RS232 Communications port

SCSI connector

Thickwire Ethernet connector

AC power to H7109 power supply

AC power for video monitor

Figure 5–2 Rear View of the System Box

1
2
3
4
5
6

7
8
LJ-00961-TI0

Removing and Replacing FRUs 5–3

Removing and Replacing FRUs
5.2 VAXstation 4000 VLC FRUs
Figure 5–3 shows the connectors and controls located on the right side of the VAXstation
4000 VLC system box.
Audio in/out
This is a four-pin, MJ-type connector.
Halt console switch

When actuated, this momentary switch sends a Halt signal to the CPU
module.
Console select switch

This switch selects either the graphics terminal or printer/console port as
the system console.
Keyboard connector

Mouse connector

Figure 5–3 Right Side View of the System Box

1
2
3
4
5
LJ-00962-TI0

5–4 Removing and Replacing FRUs

Removing and Replacing FRUs
5.3 System Preparation

5.3 System Preparation
Perform the following to prepare the system for removing or replacing FRUs.
1. Turn power to the operating system off.
2. Enter console mode by pressing the halt button (Figure 5–3) located on the
right rear of the system box.
3. After adding a new device or module to the system, halt the system after
the power-up test so diagnostics can be run to determine if the new device
or module is connected correctly. At the console prompt, type:
>>> SET HALT 3
>>>

Return

4. Before adding a new device or module, review the current system
configuration. After adding the new device or module, compare the
old configuration with the current one to help verify that all devices are
present and functioning correctly. Record the current system configuration
information for reference.
•

To determine the presence of devices, test status, and to determine the
quantity of memory inside the system, enter:
>>>SHOW CONFIG

Return

A configuration appears similar to the following:
KA48-A BL3-186-B3.1
80-00-2B-F3-31-03
16 MB
DEVNBR DEVNAM INFO
------ ------ ---1
NVR
OK
2
LCG
HR - 8 PLN FB - 2.7
3
DZ
OK
4
CACHE OK
5
MEM
OK
16MB = S0/S1=8MB, S2/S3=0MB, S4/S5=0MB
6
7
8
9
10

FPU
IT
SYS
NI
SCSI

AUD

OK
OK
OK
OK
OK
1-RZ23L 6-INITR
OK

To determine the quantity of memory in the system, refer to line 5 of
the configuration display.

Removing and Replacing FRUs 5–5

Removing and Replacing FRUs
5.3 System Preparation
5. Turn the system off (0).
Warning
Turn power to the monitor off for at least three minutes before
removing the power cord. Remove the power cord from the monitor
before moving the monitor. The monitor is heavy and may require two
people to lift it.

6. Disconnect the system power cord from the wall outlet and then from the
system.
7. Disconnect the monitor power cord from the back of the system.
8. Remove the monitor from the top of the system and set it aside.
9. Remove the system cover by gently pushing in on the tabs located on left
side of the cover. Lift the cover up and away. (Figure 5–4). Releasing the
cover could be easier if the system box is turned on the side to access the
release tabs easier.
Figure 5–4 Removing the cover
Latches

C2
C1

MLO-007012

5–6 Removing and Replacing FRUs

Removing and Replacing FRUs
5.4 Mass Storage Drive Removal

5.4 Mass Storage Drive Removal
Note
Refer to Section 5.3 before removing or replacing a device or module.

This section describes how to remove the mass storage device from the
VAXstation 4000 VLC workstation. Figure 5–5 shows the RZ23L drive with its
cricket retaining clip in the foreground and skid plate with mounting bolt holes
underneath the drive.
Figure 5–5 Removing the RZ23L Hard Disk Drive

C2
C1

LJ-01386-TI0

Removing and Replacing FRUs 5–7

Removing and Replacing FRUs
5.4 Mass Storage Drive Removal
To remove the hard disk drive, perform the following steps:
1. Depress the cricket clip on the side of the drive and slide the drive back
until the metal pegs (on the bottom of the drive) are aligned with the
mounting holes on the skid plate.
2. Disconnect both the SCSI and dc power cables from the drive (Figure 5–6).
Figure 5–6 RZ23L SCSI and Power Cables

Power
Connector

SCSI Connector

LJ-01387-TI0

3. Lift the drive and bracket from the system box.
4. Remove the drive bracket from the drive.

5–8 Removing and Replacing FRUs

Removing and Replacing FRUs
5.4 Mass Storage Drive Removal

5.4.1 Hard Disk Drive Replacement
Before installing the new hard disk drive, verify the SCSI ID setting on the
drive.
The SCSI jumpers allow you to select a distinct unit number for each SCSI
device. It is essential that each device have a unique number (0-7, octal).
Figure 5–7 shows the location of the hard disk drive SCSI ID jumpers (ID
number 4 selected).
Figure 5–7 RZ23L Disk Drive SCSI ID Jumper Location

E1
E2
E3
E
1
2
E 3
E

MLO-005907

Removing and Replacing FRUs 5–9

Removing and Replacing FRUs
5.4 Mass Storage Drive Removal
Set the SCSI ID jumpers of the top disk drive as specified in Table 5–1. The
jumpers are used in the following manner:
•

Install the jumper for ON.

•

Remove the jumper for OFF.
Note
Disk drives are normally assigned address numbers 0-3. Other devices,
such as tape drives, are assigned higher numbers (5 and higher). The
unique SCSI ID number must be set for each SCSI device installed in
the system.

Table 5–1 Hard Disk Drive SCSI Jumper Settings
SCSI ID

Out

Comment

Usually reserved for SCSI controller

To install a new drive, reverse the steps in Section 5.4.1. However, when
replacing the drive it is easer when the cables are attached to the drive before
mounting the drive in the system box.
Note
When installing the hard disk drive into the bracket, you must apply
pressure on the drive to seat it properly.

5–10 Removing and Replacing FRUs

Removing and Replacing FRUs
5.5 Power Supply Removal

5.5 Power Supply Removal
CAUTION
Wear an antistatic wrist strap and place an antistatic mat under the
system when removing and replacing any modules.

This section describes how to remove the power supply from the VAXstation
4000 VLC system box. Figure 5–1 shows the location of the power supply. To
remove the power supply perform the following steps:
1. Disconnect the monitor and power supply power cords from the ac
connectors at the rear of the unit.
2. Remove the top cover (Section 5.3, Figure 5–4).
3. Disconnect the power supply power cable from the J13 connector of the
system module (Figure 5–8).
4. Loosen the two torque screws holding the power supply against the left
side of the system box. Figure 5–8 shows the location of the torque screws
as seen from the rear of the system box.
5. Tilt the power supply up until the bottom clears the system box, then lift
the power supply up and out.

Removing and Replacing FRUs 5–11

Removing and Replacing FRUs
5.5 Power Supply Removal
Figure 5–8 Power Supply Removal

J2
J3
J4
J5
J6

38%

22%

P o w er
C o n nector

P ower S uppl y
T orque S c rews
LJ-01076-TI0

5.5.1 Power Supply Replacement
Note
Refer to Section 5.3 before removing or replacing a device or module.

When replacing the power supply, ensure that the power supply you are
installing is identical to the one you remove from the system. When installing
a power supply into a VAXstation 4000 VLC workstaion, install the H7109
power supply.
Note
Use care when handling the power supply. Do not attempt to open the
power supply.

To install a new power supply, reverse the steps in Section 5.5.

5–12 Removing and Replacing FRUs

Removing and Replacing FRUs
5.6 Removing the LCG Module

5.6 Removing the LCG Module
CAUTION
Wear an antistatic wrist strap and place an antistatic mat under the
system when removing and replacing any modules.

To remove the LCG module perform the following steps:
1. Disconnect the power cords (monitor and power supply) from the two ac
connectors at the rear of the unit.
2. Locate and remove the two mounting screws of the LCG module.
3. Lift the LCG module up and to the rear until the video jack has cleared the
plastic system box enclosure.
To install a new LCG module, reverse the steps in Section 5.6.

5.7 Removing the System Module
CAUTION
Wear an antistatic wrist strap and place an antistatic mat under the
system when removing and replacing any modules.

To remove the system module (CPU), perform the following steps:
1. Remove the LCG graphics/audio module.
2. Disconnect the cables attached to the CPU module at the rear of the
system.
3. Remove the MS40 memory modules.
4. Remove the five rivets and three screws from the front of the CPU module.
5. Remove the system module (CPU) by lifting it enough so that it clears the
two guides at the right front and left of the module.
6. Using the large center connector, pull the module toward the front of the
system box and lift it out.
Note
The Ethernet ROM must be removed and installed on the new system
module or the NVR settings will be lost.

Removing and Replacing FRUs 5–13

Removing and Replacing FRUs
5.7 Removing the System Module

5.7.1 System Module (CPU) Replacement
Be sure to protect the system module from damage due to static charge when
replacing or removing the system module.
To install a new system module (CPU), reverse the steps in Section 5.7.

5.8 MS40 Memory Module Removal
Note
There must always be at least two memory modules in a VAXstation
4000 VLC workstation.

CAUTION 1
Memory module components are easily damaged by static electricity.
An antistatic wriststrap should always be worn when installing or
removing memory components.

CAUTION 2
The memory modules are keyed and should be installed in only one
direction. Excessive force applied to a module when it is not properly
aligned with the connector can cause permanent damage to either the
memory module or the connector.

CAUTION 3
Wear an antistatic wrist strap and place an antistatic mat under the
system when removing and replacing any modules.

Note
Memory modules must always be removed starting from the front
of the system. For example, if you are going to replace the module
towards the rear of the system board, you must remove any modules
starting at the front and working toward the back. Memory modules

5–14 Removing and Replacing FRUs

Removing and Replacing FRUs
5.8 MS40 Memory Module Removal
are numbered on the right edge of the memory connectors located on
the system board.

Removing and Replacing FRUs 5–15

Removing and Replacing FRUs
5.8 MS40 Memory Module Removal
This section describes how to remove the MS40 memory module from the
system. The memory modules are shown in Figure 5–1. To remove the MS40
memory modules perform the following steps:
1. Release the two metal retainers at each end of the memory module
connector.
2. Rotate the module backward approximately 55 degress to the rear of the
unit and lift it out of the slot.
Note
Failure to release the two module retainers will permanently damage
the module connector located on the system board.

5.8.0.1 MS40 Memory Module Replacement
Note
There is only one type of memory module available for the VAXstation
4000 VLC workstation, the 4 Mbyte (MS40-AA). Be sure that you have
the correct module before installation. To identify the module locate
the etch on the left side of the memory module.

To install a new MS40 memory module perform the following steps:
1. Place the module in the connector with it tilted at approximately 55
degrees backwards. Be sure the double notched lower corner of the module
is away from the power supply.
2. Pivot the module upwards until the metal tabs connect with the module
and latch it into place.

5–16 Removing and Replacing FRUs

Removing and Replacing FRUs
5.9 Clearing the System Password

5.9 Clearing the System Password
To clear the system password
1. Turn power to the system off.
2. Ground the two triangles onto the system module using a screwdriver.
Figure 5–9 shows the grounding points on the CPU module.
Figure 5–9 Password Clearing Points
J10
J1
J2

J11
E31

E38

J4
J5
E39

E32

E19
E4

J13

E38
E4

E13

E14
J8
J9

J12

P a s s w o rd
C l e arin g
P o i nts
LJ-01077-TI0

Removing and Replacing FRUs 5–17

Removing and Replacing FRUs
5.10 Testing the VAXstation 4000 VLC System

5.10 Testing the VAXstation 4000 VLC System
This section describes how to test the system after removing or replacing any
FRUs.

5.10.1 Restore the System
Before you can test the system, you must restore the system to its previous
operating state. To restore the system, perform the following steps:
1. Replace the system cover. Align the teeth of the cover with the teeth on the
side of the system enclosure and lower the cover until it clicks into place.
2. Reconnect any cables that you disconnected from the rear of the system.
3. Reconnect the monitor.
4. Plug the system power cord into the wall outlet.
5. Turn power to the system on.

5–18 Removing and Replacing FRUs

Removing and Replacing FRUs
5.10 Testing the VAXstation 4000 VLC System

5.10.2 Test the System
Test the system to confirm that all devices and modules are connected correctly.
Do the following to test the system:
1. Note any power-up error or status messages on the monitor screen.
2. Display the system device configuration by using the SHOW CONFIG
command. (See Section 5.3.) Compare the latest configuration display with
the configuration display you viewed during site preparation. You should
see the new device and the other devices present in the system. Verify that
no error messages appears on the monitor screen.
3. Verify that all devices are interacting properly by using the TEST 1:11
command to run the expanded self test.
4. Verify that drives are set to the correct SCSI IDs using the SHOW DEVICE
command.
5. If problems occur, check the following to ensure that
a. All cables inside and outside the system are connected.
b. All modules are fully seated in the connectors.
c.

SCSI IDs are set correctly. Each drive should have a differenct SCSI
Id.

Removing and Replacing FRUs 5–19

A
Self-Test Error Codes
A.1 Self-Test Error Codes
The system reports two kinds of self-test errors: those that display on the
console immediatly after running the self test, and extended self test errors.
The first type consists of one or two question marks to indicate a nonfatal or
fatal error, the failing FRU, the failed device, and a general error code. The
second type of error (extended), displays more detailed information. To view an
extended error, you must type SHOW ERROR at the console prompt, after the
self test has reported an error.

A.1.1 NVR Self-Test Error Codes
Table A–1 lists the TOY/NVR self-test error codes.
Table A–1 TOY/NVR Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

Self test was successful

Battery was found to be bad

NVR register test has failed

Battery down and NVR register test has failed

TOY register test has failed

Valid RAM and time bit has failed to set

VRT bit failure and battery was found to be bad

Battery down, VRT failure, and NVR test has failed

TOY register test and VRT has failed

Battery check test has failed
(continued on next page)

Self-Test Error Codes A–1

Self-Test Error Codes
A.1 Self-Test Error Codes
Table A–1 (Cont.) TOY/NVR Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

Battery check test has failed and NVR register test
has failed

VRT bit failure and battery check test has failed

104

Battery check, VRT, and NVR test has failed

128

Update in progress has failed to clear; hard error

129

Update in progress has failed to clear; soft error

160

Update in progress has failed and VRT bit has failed

A.1.2 DZ Self-Test Error Codes
Table A–2 lists the DZ error codes.
Table A–2 DZ Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

DZ reset test has failed

DZ read LPR test has failed

DZ Modem test has failed

DZ polled test has failed

DZ interrupt driver transfer test has failed

DZ LK401 test has failed

112

DZ mouse test has failed

128

DZ INIT DRIVER has failed

144

No memory to use for data area

The DZ self test does not display extended error information when an
error occurs. Use the SHOW ERROR command to view the extended error
information.
Extended Error Format 0010 :

A–2 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes
001 0010 ssssssss cccccccc llllllll rrrrrrrr eeeeeeee

Message

Meaning

ssssssss

Suberror code

cccccccc

Value of the DZ CSR

llllllll

Line number

rrrrrrrr

Data read back

eeeeeeee

Expected data

This format is used by the DZ read LPR test.
Table A–3 lists the DZ suberror codes.
Table A–3 DZ Suberror Codes
Suberror-HEX

Meaning
Read LPR

READ LPR Baud rate is incorrectly set

READ LPR Character width is incorrectly set

READ LPR Parity bit is incorrectly set

READ LPR Receiver on bit is incorrectly set
DZ Modem Test

Failed RTS <-> CTS loopback

Failed DSRS <-> DSR & CD loopback

Failed LLBK <-> SPDMI loopback

Failed DTR <-> RI loopback
(continued on next page)

Self-Test Error Codes A–3

Self-Test Error Codes
A.1 Self-Test Error Codes
Table A–3 (Cont.) DZ Suberror Codes
Suberror-HEX

Meaning
DZ Polled Test

Transfer has timed out

Data is invalid

Parity error

Framing error

Overrun error

Character received != Character transmitted
DZ Interrupt Test

Transfer has timed out

Data is invalid

Parity Error

Framing Error

Overrun Error

Character received != Character transmitted
DZ LK401 Test

Transfer has timed out

LK401 has failed self test
DZ Mouse test

Transfer has timed out

Mouse has failed self test

A–4 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes

A.1.3 Memory Self-Test Error Codes
Table A–4 lists the memory self-test error codes.
Table A–4 Memory Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

40h

16 MB memory modules are mismatched

42h

Gap found between memory module pairs

44h

16 MB memory module found on a PVAX2

46h

4 MB module found after 16 MB module

48h

Memory modules not plugged in pairs

256

100h

Failure has occured in the byte mask test

260

104h

Parity error occured during the byte mask test

514

202h

Data compare error occured during the forward pass

516

204h

Parity error occured during the forward pass

770

302h

Data compare error occured during the reverse pass

772

304h

Parity error occured during the reverse pass

1028

404h

Parity error occured during parity test #1

1288

504h

Parity error occured during parity test #2

The memory self test does not display extended error information when an
error occurrs. Use the SHOW ERROR command to view the extended error
information. The extended error code can be as shown.

Self-Test Error Codes A–5

Self-Test Error Codes
A.1 Self-Test Error Codes
Extended Error Format:
xxx 4 MEM yyyy
xxx 00a bbbbbbbb cccccccc dddddddd eeeeeeee

Message

Meaning

xxx

The failed FRU

yyyy

The error code in HEX

00a

Extended error information format type

bbbbbbbb

The contents of the memory system error register (MSER)

cccccccc

The failing address

dddddddd

The expected data

eeeeeeee

The data that was read

A.1.4 Memory Management Unit Self-Test Error Codes
Table A–5 lists the memory management unit (MMU) self-test error codes.
Table A–5 Memory Management Unit Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

Could not find 64 Kbyte of memory for the test

Failure in the MMU

Illegal vector during MMU test

A–6 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes

A.1.5 Interval Timer Self-Test Error Codes
Table A–6 lists the interval timer self-test error codes.
Table A–6 Interval Timer Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

Interval timer is not interrupting at the correct rate

A.1.6 System Device Self-Test Error Codes
Table A–7 lists the system device self-test error codes.
Table A–7 System Device Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

System ROM test has failed

128

Invalidate filter RAM error

The SYS self test does not display extended error information when an
error occurs. Use the SHOW ERROR command to view the extended error
information. The extended error code format is shown next.
Extended Error Format 0010 :
This format displays when there is an invalidate filter ram error.
001 0010 aaaaaaaa rrrrrrrr eeeeeeee

Message

Meaning

001

The FRU number (system board)

0010

The format number

aaaaaaaa

The failing invalidate filter address

rrrrrrrr

The data read

eeeeeeee

The data expected

Self-Test Error Codes A–7

Self-Test Error Codes
A.1 Self-Test Error Codes

A.1.7 SCSI Self-Test Error Codes
Table A–8 lists the SCSI self-test error codes.
Table A–8 SCSI Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

SCSI Reset Register Test has failed

SCSI Configuration Registers Test has failed

SCSI Fifo Register Test has failed

SCSI Transfer Count Registers Test has failed

SCSI Interrupt, Status Registers Test has failed

SCSI Interrupt Test No Cause has failed

SCSI Interrupt Test High Ipl, Mask Disabled has
failed

SCSI Interrupt Test High Ipl, Mask Enabled has
failed

SCSI Interrupt Test Low Ipl, Mask Disabled has
failed

SCSI Interrupt Test Low Ipl, Mask Enabled has
failed

SCSI Data Transfer Test, Prom Function has failed

SCSI Data Transfer Test, DMA Mapping has failed

SCSI Data Transfer Test, Non-DMA Inquiry has
failed

SCSI Data Transfer Test, Not Enough Data
Returned

SCSI Data Transfer Test, DMA Inquiry has failed

SCSI Data Transfer Test, Non-DMA/DMA
Miscompare

SCSI Data Transfer Test, DMA Inquiry Nonaligned
has failed

SCSI Data Transfer Test, Non-DMA/DMA
Nonaligned Miscompare

SCSI Data Transfer Test, Synchronous Inquiry has
failed
(continued on next page)

A–8 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes
Table A–8 (Cont.) SCSI Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

SCSI Data Transfer Test, Non-DMA/Synchronous
Miscompare

SCSI Minimal Device Test has failed

SCSI Map Error Test, DMA Mapping has failed

SCSI Map Error Test, DMA Inquiry has failed

SCSI Map Error Test, Map Error Will Not Clear

SCSI Map Error Test, Map Error Will Not Set

SCSI Map Error Test, Parity Error Will Not Clear

SCSI Map Error Test, Prom Function has Failed

SCSI Prom Function has failed

SCSI Init Driver has failed

The SCSI self test does not display extended error information when an
error occurs. Use the SHOW ERROR command to view the extended error
information. The extended error code can be as shown.
Extended Error Format 0001 :
This format is used by the register test.
001 0001 aaaaaaaa bbbbbbbb cccccccc dddddddd

Message

Meaning

aaaaaaaa

The error code

bbbbbbbb

The address of the register or location being accessed

cccccccc

The expected data or data written

dddddddd

The actual data or data read

Self-Test Error Codes A–9

Self-Test Error Codes
A.1 Self-Test Error Codes
Extended Error Format 000B :
This format is used by the register test.
001 000B aaaaaaaa bbbbbbbb cccccccc

Message

Meaning

aaaaaaaa

The error code

bbbbbbbb

The address of the register or location being accessed

cccccccc

Information about the error

Extended Error Format 000C :
This format is used by the interrupt test.
001 000C aaaaaaaa bbbbbbbb cccccccc dddddddd eeeeeeee ffffffff

Message

Meaning

aaaaaaaa

The error code

bbbbbbbb

Information about the error

cccccccc

Contents of interrupt mask register

dddddddd

Contents of interrupt request register

eeeeeeee

Contents of controller status register

ffffffff

Contents of the controller interrupt register

A–10 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes
Extended Error Format 000D :
This format is used when not enough data is returned to the self test after a
SCSI command is executed.
aaa 000D bbbbcccc ddddeeee ffffgggg hhhhhhhh

Message

Meaning

aaa

The FRU

bbbb

The logical unit number

cccc

The device ID

dddd

The actual command opcode

eeee

The current command opcode

ffff

The error code

gggg

The mode of operation

hhhhhhhh

the number of data bytes received

Extended Error Format 000E :
This format is used when execution of a SCSI command fails.
aaa 000E bbbbcccc ddddeeee ffffgggg hhhhiiii jjjjjjjj kkkkllll mmmmmmmm

Message

Meaning

aaa

The FRU

bbbb

The logical unit number

cccc

The device ID

dddd

The actual command opcode

eeee

The current command opcode

ffff

The error code

gggg

The mode of operation

hhhh

Byte 14 of the request sense packet (device FRU)

iiii

Information about the error

jjjjjjjj

SCSI bus phase at the time of the error

kkkk

The contents of the controller status register at the time of the error

Self-Test Error Codes A–11

Self-Test Error Codes
A.1 Self-Test Error Codes
Message

Meaning

llll

The contents of the controller interrupt register at the time of the
error

mmmmmmmm

The request sense key

Extended Error Format 000F :
This format is used when the status phase returns a bad status, or when a bad
sense key is seen after a request sense.
aaa 000F bbbbcccc ddddeeee ffffgggg hhhhiiii jjjjjjjj kkkkkkkk

Message

Meaning

aaa

The FRU

bbbb

Logical unit number

cccc

Device ID

dddd

Actual command opcode

eeee

Current command opcode

ffff

Error code

gggg

Mode of operation

hhhh

Byte 14 of the request sense packet (device FRU)

iiii

Information about the error

jjjjjjjj

Status byte returned in the status phase

kkkkkkkk

Request sense key

A–12 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes
Extended Error Format 0010 :
This format is used when a request sense command is executed, but not enough
sense bytes are received.
aaa 0010 bbbbcccc ddddeeee ffffgggg hhhhiiii jjjjjjjj kkkkkkkk

Message

Meaning

aaa

The FRU

bbbb

Logical unit number

cccc

Device ID

dddd

Actual command opcode

eeee

Current command opcode

ffff

Error code

gggg

Mode of operation

hhhh

Byte 14 of the request sense packet (device FRU)

iiii

Information about the error

jjjjjjjj

Number of bytes of sense data returned from the request sense

kkkkkkkk

Request sense key

Extended Error Format 0011 :
This format is used when the data out phase sends less bytes than expected.
aaa 0011 bbbbcccc ddddeeee ffffgggg hhhhiiii jjjjkkkk llllllll mmmmmmmm

Message

Meaning

aaa

The FRU

bbbb

Logical unit number

cccc

Device ID

dddd

Actual command opcode

eeee

Current command opcode

ffff

Error code

gggg

Mode of operation

hhhh

Byte 14 of the request sense packet (device FRU)

iiii

Information about the error

Self-Test Error Codes A–13

Self-Test Error Codes
A.1 Self-Test Error Codes
Message

Meaning

jjjj

Contents of the controller status register at the time of the error

kkkk

Contents of the controller interrupt register at the time of the error

llllllll

Number of bytes actually sent in the data in/out phase

mmmmmmmm

Number of bytes that should have been sent in the data in/out phase

Extended Error Format 0012 :
This format is used when an unsupported message is seen.
aaa 0012 bbbbcccc ddddeeee ffffgggg hhhhiiii jjjjjjjj kkkkllll mmmmmmmm

Message

Meaning

aaa

The FRU

bbbb

Logical unit number

cccc

Device ID

dddd

Actual command opcode

eeee

Current command opcode

ffff

Error code

gggg

Mode of operation

hhhh

Byte 14 of the request sense packet (device FRU)

iiii

Information about the error

jjjjjjjj

First message byte of the message in the phase that the error
occurred

kkkk

Contents of the controller interrupt register at the time of the error

llll

Contents of the controller status register at the time of the error

mmmmmmmm

Request sense key

Extended Error Format 0013 :
This format is used by the map error test.
aaa 0013 bbbbcccc dddddddd eeeeeeee ffffffff gggggggg hhhhhhhh iiiiiiii

Message

Meaning

aaa

The FRU

A–14 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes
Message

Meaning

bbbb

Logical unit number

cccc

Device ID

dddddddd

DMA address where the SCSI command is located

eeeeeeee

DMA address where the SCSI data is located

ffffffff

Contents of the parity control register

gggggggg

Map register address

hhhhhhhh

Contents of the map register

iiiiiiii

Error code

Self-Test Error Codes A–15

Self-Test Error Codes
A.1 Self-Test Error Codes
Extended Error Format 14 :
This format is used by the data transfer test when the number of bytes
received from two transfers are different.
aaa 0014 bbbbbbbb cccccccc dddddddd

Message

Meaning

aaa

The FRU

bbbbbbbb

First number of the bytes

cccccccc

Second number of the bytes

dddddddd

Error code

Extended Error Format 0015 :
This format is used by the data transfer test when the data bytes received from
two transfers are compared and found to be different.
aaa 0015 bbbbbbbb cccccccc

Message

Meaning

aaa

The FRU

bbbbbbbb

Number of the byte that failed

cccccccc

Error code

A–16 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes

A.1.8 Audio Self-Test Error Codes
Table A–9 lists the audio self-test error codes.
Table A–9 Audio Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

AUD$LIU_LSR_SAE Register Test has failed

AUD$LIU_LPR_SAE Register Test has failed

AUD$LIU_LPR_NZE Register Test has failed

AUD$LIU_LMR1_SAE Register Test has failed

AUD$LIU_LMR2_SAE Register Test has failed

AUD$MUX_MCR1_SAE Register Test has failed

AUD$MUX_MCR2_SAE Register Test has failed

AUD$MUX_MCR3_SAE Register Test has failed

AUD$MAP_MMR1_SAE Register Test has failed

AUD$MAP_MMR2_SAE Register Test has failed

AUD$MAP_DIGITAL_LOOPBACK1 Test has failed

AUD$MAP_DIGITAL_LOOPBACK2 Test has failed

AUD$MAP_DIGITAL_LOOPBACK3 Test has failed

AUD$INTR_RECEIVE_BYTE_AVAILABLE Test has
failed

AUD$INTR_BAD_DLC_LOOPBACK_DATA Test
has failed

AUD$INTR_TIME_OUT Test has failed

AUD$INTR_INVALID_IR_VALUE Test has failed

AUD$INTR_NO_INT_GENERATED Test has failed

AUD$INTR_NOT_ALL_INTS_RCVD Test has failed

AUD$INTR_INT_NOT_DISABLED Test has failed

The AUD self test does not display extended error information in decimal
when an error occurs. Use the SHOW ERROR command to view the extended
error information in HEX. The extended error codes can be of several types as
shown.
Extended Error Format 0010 :

Self-Test Error Codes A–17

Self-Test Error Codes
A.1 Self-Test Error Codes
This format is used by all of the audio register test.
aaa 0010 bbbbbbbb cccccccc dddddddd

Message

Meaning

aaa

The FRU

bbbbbbbb

Error number

cccccccc

Contents of data register (DR)

dddddddd

TBS

A–18 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes
Extended Error Format 0011 :
This format is used by all of the audio register test.
aaa 0011 bbbbbbbb cccccccc dddddddd

Message

Meaning

aaa

The FRU

bbbbbbbb

Error number

cccccccc

Contents of D channel status register 2 (DSR2)

dddddddd

TBS

Extended Error Format 0012 :
This format is used by all of the audio register test.
aaa 0012 bbbbbbbb cccccccc dddddddd

Message

Meaning

aaa

The FRU

bbbbbbbb

Error number

cccccccc

dddddddd

TBS

A.1.9 Floating Point Unit (FPU) Self-Test Error Codes
Table A–10 lists the FPU self-test error codes.
Table A–10 FPU Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

258

102

MOVF instruction test has failed

260

104

Unexpected Exception has occured during MOVF
test

514

202

MNEGF instruction test has failed

516

204

Unexpected Exception has occured during MNEGF
test
(continued on next page)

Self-Test Error Codes A–19

Self-Test Error Codes
A.1 Self-Test Error Codes
Table A–10 (Cont.) FPU Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

770

302

ACBF instruction test has failed

772

304

Unexpected Exception has occured during ACBF
test

1026

402

ADDF2/ADDF3 instruction test has failed

1028

404

Unexpected Exception has occured during ADDFx
test

1282

502

CMPF instruction test has failed

1284

504

Unexpected Exception has occured during CMPF
test

1538

602

CVTFD/CVTFG instruction test has failed

1540

604

Unexpected Exception has occured during CVTFD
/CVTFG test

1794

702

CVTFx instruction test has failed

1796

704

Unexpected Exception has occured during CVTFx
test

2050

802

CVTxF instruction test has failed

2052

804

Unexpected Exception has occured during CVTxF
test

2306

902

DIVF2/DIVF3 instruction test has failed

2308

904

Unexpected Exception has occured during DIVFx
test

2562

A02

EMODF instruction test has failed

2564

A04

Unexpected Exception has occured during EMODF
test

2818

B02

MULF2/MULF3 instruction test has failed

2820

B04

Unexpected Exception has occured during MULFx
test

3074

C02

POLYF instruction test has failed

3076

C04

Unexpected Exception has occured during POLYF
test

3330

D02

SUBF2/SUBF3 instruction test has failed
(continued on next page)

A–20 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes
Table A–10 (Cont.) FPU Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

3332

D04

Unexpected Exception has occured during SUBFx
test

3586

E02

TSTF instruction test has failed

3588

E04

Unexpected Exception has occured during TSTF test

The FPU self test displays extended error information when an error occurs.
Use the SHOW ERROR command to view the extended error information. The
extended error code can be as shown.
Extended Error Format:
This format is used by the FPU sef test when it receives an exception while
running one of the floating point tests.
001 000 VVVVVVVV EEEEEEEE EEEEEEEE EEEEEEEE EEEEEEEE EEEEEEEE EEEEEEEE

Message

Meaning

VVVVVVVV

Vector of the unexpected interrupt

EEEEEEEE

Other exception data; ONLY prints out on machine checks and
arithmetic traps

Self-Test Error Codes A–21

Self-Test Error Codes
A.1 Self-Test Error Codes

A.1.10 Cache Self-Test Error Codes
Table A–11 lists the Cache self-test error codes.
Table A–11 Cache Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

512

200

Error in write/read to the DATA store

768

300

Error in write/read to the TAG store

1024

400

Valid bit is not set when it should be

1280

500

TAG does not contain TAG for Diagnostic space

1536

600

Unexpected TAG parity error

1792

700

Cache did not provide expected data during a cache
hit

2048

800

Cache Data parity error

2304

900

Tag not valid during cache hit testing

2560

a00

Data not valid during cache hit testing

2816

B00

cache data write through test has failed because of
invalid data in the cache data store

3072

C00

cache data write throught test has failed because of
invalid data in memory

The Cache self test displays extended error information when an error occurs.
Use the SHOW ERROR command to view the extended error information. The
extended error can be as shown.

A–22 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes
Extended Error Format 000a :
This format is use by Cache test.
001 000a aaaaaaaa eeeeeeee rrrrrrrr

Message

Meaning

aaaaaaaa

Address within the DATA or TAG store that failed

eeeeeeee

Expected value of the data pattern

rrrrrrrr

Data that was read from the failing address

A.1.11 LCG Self-Test Error Codes
Table A–12 lists the LCG self-test error codes.
Table A–12 LCG Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

LCG register test has failed
LCG Fifo Test Failures

Fifo status bits error

Fifo setup packet error

Fifo interrupt status bit error

Fifo control status bit error

Fifo memory pointers error

Fifo data flow error

Fifo clip list pointers error
(continued on next page)

Self-Test Error Codes A–23

Self-Test Error Codes
A.1 Self-Test Error Codes
Table A–12 (Cont.) LCG Self-Test Error Codes
Error-DEC

Error-HEX

Meaning
LCG Interrupt Test Failures

Write protect not set

Write protect not cleared

Bad opcode interrupt not set

Bad opcode interrupt not cleared

Clip list wrap interrupt not set

Clip list wrap interrupt not cleared

Packet breakpoint interrupt not set

Packet breakpoint interrupt not cleared

Packet breakpoint single step

Address breakpoint not set

Address breakpoint not cleared

Address breakpoint not cancelled

Access breakpoint not set

Access breakpoint not cleared

Access breakpoint single step

Nop interrupt not set

Nop interrupt not cleared

Halt interrupt not set

Halt interrupt not cleared

LCG interrupt line

LCG memory error interrupt
(continued on next page)

A–24 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes
Table A–12 (Cont.) LCG Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

Video Option Board VRAM Test Failures
80

Pass 1 failed

Pass 2 failed

Pass 3 failed

Address pass test failed
Video Option Board Brooktree Test Failures

BT read mask register

BT blink mask register

BT command register

BT test register

BT pallette red entry

BT pallette green entry

100

BT pallette blue entry

102

BT overlay red entry

104

BT overlay green entry

106

BT overlay blue entry

108

Video option board of unknown type

110

Video option board video readback test failed
LCG Video Timing Test Failures

112

Verticle retrace never detected

114

LCG video counters not counting

116

Active video never detected

118

LCG plane mask error
(continued on next page)

Self-Test Error Codes A–25

Self-Test Error Codes
A.1 Self-Test Error Codes
Table A–12 (Cont.) LCG Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

LCG Virtual Drawing Test Failures
128

Virtual status bits error

130

Virtual translation error

132

Virtual rasterop error

134

Virtual falut error

136

Virtual invalidate error
LCG Physical Drawing Test Failures

144

Physical resterop error

146

Logical function error

148

Action code error

The LCG self test displays extended error information when an error occurs.
Use the SHOW ERROR command to view the extended error information. The
extended error codes can be of several types as shown.
Extended Error Format 0001 :
This format is used by the LCG register test, LCG fifo test, LCG video test,
and the LCG virtual test.
xxx 0001 aaaaaaaa bbbbbbbb cccccccc dddddddd

Message

Meaning

xxx

The FRU

aaaaaaaa

Error code

bbbbbbbb

Address of the register or location being accessed

cccccccc

Expected data or data written

dddddddd

Actual data or data read

A–26 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes
Extended Error Format 000B :
This format is used by the LCG fifo test.
010 000B aaaaaaaa bbbbbbbb cccccccc dddddddd eeeeeeee

Message

Meaning

aaaaaaaa

The error code

bbbbbbbb

Fifo control flag being tested

cccccccc

Address of the register

dddddddd

Expected register content

eeeeeeee

Extended Error Format 000C :
This format is used by the LCG fifo test.
010 000C aaaaaaaa bbbbbbbb cccccccc dddddddd eeeeeeee

Message

Meaning

aaaaaaaa

Error code

bbbbbbbb

LCG command packet being tested

cccccccc

Address of the register

dddddddd

The expected register content

eeeeeeee

Extended Error Format 000D :
This format is used by the LCG fifo test, LCG interrupt test, LCG video test
and the LCG virtual drawing test.
xxx 000D aaaaaaaa bbbbbbbb cccccccc dddddddd

Message

Meaning

xxx

The FRU

aaaaaaaa

Error code

bbbbbbbb

LCG status bit of interest

cccccccc

Address of the register LCG status register

Self-Test Error Codes A–27

Self-Test Error Codes
A.1 Self-Test Error Codes
Message

Meaning

dddddddd

LCG status register content

Extended Error Format 000E :
This format is used by the LCG fifo test and the LCG virtual drawing test.
010 000E aaaaaaaa bbbbbbbb cccccccc dddddddd eeeeeeee ffffffff

Message

Meaning

aaaaaaaa

Error code

bbbbbbbb

LCG fifo control flag

cccccccc

LCG status bit

dddddddd

LCG status register address

eeeeeeee

LCG status register contents

ffffffff

Expected state of status bits

Extended Error Format 000F :
This format is used by the video option board readback test.
xxx 000F aaaaaaaa bbbbbbbb cccccccc dddddddd

Message

Meaning

xxx

The FRU

aaaaaaaa

Error code

bbbbbbbb

Color the Brooktree is programmed

cccccccc

Value of the video option board readback register

dddddddd

Expected value of the video board readback register

A–28 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes
Extended Error Format 0010 :
This format is used by the LCG virtual drawing test and the LCG physical
drawing test.
001 0010 aaaaaaaa bbbbbbbb cccccccc dddddddd eeeeeeee ffffffff gggggggg

Message

Meaning

aaaaaaaa

Error code

bbbbbbbb

LCG-drawing opcode and opcode flags

cccccccc

Physical address for operation

dddddddd

Expected pixel value

eeeeeeee

Pixel value read

ffffffff

LCG-LU function

gggggggg

LCG-action code

A.1.12 NI Self-Test Error Codes
Table A–13 lists the NI self-test error codes for the system.
Table A–13 NI Self-Test Error Codes
Error-DEC

Error-HEX

Meaning

Network Address ROM Test Failure
16

read access failed

null address

bad group address

bad checksum

bad group 2

bad group 3

bad test patterns
(continued on next page)

Self-Test Error Codes A–29

Self-Test Error Codes
A.1 Self-Test Error Codes
Table A–13 (Cont.) NI Self-Test Error Codes
Error-DEC

Error-HEX

Meaning
Lance CSR Test Failures

LANCE Register Address Port R/W error

Lance CSR0 r/w error

Lance CSR1 r/w error

Lance CSR2 r/w error

Lance CSR3 r/w error
Lance Initialization Test Failures

Initialization failed

Receiver disabled

Transmitter disabled

Receiver enabled

Transmitter enabled
Lance Internal Loopback/DMA Test Failures

Initialization failed

Transmit failed

Receive failed

Packet comparsion failed

Initialization DMA error

Transmit DMA error

Receive DMA error

Unknown tx of rx error
(continued on next page)

A–30 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes
Table A–13 (Cont.) NI Self-Test Error Codes
Error-DEC

Error-HEX

Meaning
Lance Interrupt Test Failures

Initialization failed

Transmit failed

Receive failed

Packet comparison failed

NI bit in INT_REQ register not set

NI bit in INT_REQ register not clear

NI ISR not entered

NI ISR entered multiple times
Lance CRC Test Failures

Initialization failed

Transmit failed

100

Receive failed

102

Packet comparison failed

104

Lance generated bad CRC

106

Lance rejected good CRC

108

Lance accepted bad CRC

110

Other error
Lance rx MISS/BUFF Test Failures

112

Initialization failed

114

Transmit failed

116

Unknown receive error

118

MISS error not flagged

120

BUFF error not flagged
(continued on next page)

Self-Test Error Codes A–31

Self-Test Error Codes
A.1 Self-Test Error Codes
Table A–13 (Cont.) NI Self-Test Error Codes
Error-DEC

Error-HEX

Meaning
Lance Collision Test Failures

128

Initialization failed

130

Unknown transmit error

132

RETRY not flagged

134

Transmitter disabled
Lance Address Filtering Test Failures

144

Initialization failed

146

Transmit failed

148

Receive failed

150

Packet comparison failed

152

Broadcast filtering failed

154

Promiscuous mode failed

156

Null destination accepted

158

Good logical address rejected
Lance External Loopback Test Failures

160

Initialization failed

162

Transmit failed

164

Receive failed

166

Packet comparison failed

168

Unknown transmit error

170

Unknown receive error

172

Check NI port lpbk connector
(continued on next page)

A–32 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes
Table A–13 (Cont.) NI Self-Test Error Codes
Error-DEC

Error-HEX

Meaning
Lance tx BUFF Test Failures

176

Initialization failed

178

BUFF error mot flagged

180

Transmitter enabled

182

Unknown transmit error
DMA Registers Test Failures

208

MAP_BASE register error

210

I/O write access to map registers failed

212

I/O read access to map registers failed

214

Parity error not flagged
Lance DMA Test Failures

224

Non-existant DMA not flagged

226

Invalid DMA not flagged

228

Valid DMA failed

230

DMA failed during initialization

232

DMA failed during transmit

234

DMA failed during receive

The NI self test displays extended error information when an error occurs.
Use the SHOW ERROR command to view the extended error information. The
extended error code can be as shown.

Self-Test Error Codes A–33

Self-Test Error Codes
A.1 Self-Test Error Codes
Extended Error Format 0001 :
This format is used by the register test.
0001 0001 aaaaaaaa bbbbbbbb cccccccc

Message

Meaning

aaaaaaaa

bbbbbbbb

Expected data or data written

cccccccc

Actual data or data read

Extended Error Format 0002 :
This format is used when there is a DMA error.
0001 0002 0000aaaa bbbbbbbb cccccccc dddddddd eeeeeeee

Message

Meaning

aaaa

Actual value of the Lance CSR0

bbbbbbbb

Contents of the parity control register

cccccccc

Device DMA address (24 bits)

dddddddd

Map register physical address

eeeeeeee

Map register contents

A–34 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes
Extended Error Format 000B :
This format is used when there is a network address ROM address group error.
0001 000B aaaaaaaa bbbbbbbb cccccccc 0000dddd

Message

Meaning

aaaaaaaa

Base address of the network address ROM

bbbbbbbb

First four bytes of the network address

cccccccc

Next two bytes of the network address and the two byte checksum

dddd

Calculated checksum

Extended Error Format 000C :
This format is used when there is a network address ROM test pattern error.
0001 000C aaaaaaaa bbbbbbbb cccccccc

Message

Meaning

aaaaaaaa

Base address of the network address ROM test pattern

bbbbbbbb

First four bytes of the test patterns

cccccccc

Last four bytes of the test paktterns

Self-Test Error Codes A–35

Self-Test Error Codes
A.1 Self-Test Error Codes
Extended Error Format 000D :
This format is used when there is an initialization error.
0001 000D 0000aaaa bbbbbbbb 0000cccc dddddddd eeeeeeee

Message

Meaning

aaaa

Actual value of the Lance CSR0

bbbbbbbb

Physical address of the initialization block

cccc

Initialization block mode

dddddddd

Upper longword of the logical address filter

eeeeeeee

Lower longword of the logical address filter

Extended Error Format 000E :
This format is used when there is a transmit error.
0001 000E 0000aaaa bbbbbbbb cccccccc dddddddd

Message

Meaning

aaaa

The actual value of Lance CSR0

bbbbbbbb

Physical address of the current transmit descriptor

cccccccc

First longword of the transmit descriptor

dddddddd

Second longword of the transmit descriptor

A–36 Self-Test Error Codes

Self-Test Error Codes
A.1 Self-Test Error Codes
Extended Error Format 000F :
This format is used when there is a receive error.
0001 000F 0000aaaa bbbbbbbb cccccccc dddddddd

Message

Meaning

aaaa

Actual value of Lance CSR0

bbbbbbbb

Physical address of the current receive descriptor

cccccccc

First longword of the receive descriptor

dddddddd

second longword of the receive descriptor

Extended Error Format 0010 :
This format is used when there is a packet error.
0001 0010 0000aaaa bbbbbbbb cccccccc dddddddd

Message

Meaning

aaaa

Actual value of Lance CSR0

bbbbbbbb

Packet length

cccccccc

Packet pattern or packet index

dddddddd

Packet CRC

Extended Error Format 0011 :
This format is used when there is an interrupt error.
0001 0011 0000aaaa bbbbbbbb cccccccc

Message

Meaning

aaaa

Actual value of Lance CSR0

bbbbbbbb

Contents of the interrupt mask register

cccccccc

Contents of the interrupt request register

Self-Test Error Codes A–37

B
Diagnostic LED Error Codes
B.1 Reading Diagnostic LED Codes
The system uses the eight LEDs on the control panel to indicate the current
executing test. At power-up, all the LEDs turn on (LED code is FF(h)), and
then display different codes as the devices are tested.
The LED codes are broken into two fields. The left most four LEDs represent
the function pointer to the LED error table that should be referenced when
interepreting the second (right most) field of LEDs, which represents a
particular test category. LED codes E0h - FFh are reserved for the console.
Each LED error table is preceeded by a section header that includes the LED
code pointing to that table. Each table header includes the column titled LED
Depiction. In the description, field X indicates that the LED is on, the letter O
indicates the LED is off, and Z is either.

Diagnostic LED Error Codes B–1

Diagnostic LED Error Codes
B.1 Reading Diagnostic LED Codes

B.1.1 Powerup/Initialization LED Codes, XXXX zzzz
Table B–1 lists the system powerup and initialization LED codes.
Table B–1 Powerup and Initialization LED Codes
LED Depiction1

LED
Code

xxxx xxxx

Description

FRU

FFh

Power has been applied but no
instruction has been run

CPU

xxxx xxxo

FEh

ROM has been entered and initialization and testing have started

CPU

xxxx xxox

FDh

Waiting for memory to initialize

CPU,
memory
modules

xxxx xxoo

FCh

Sizing memory in the system

CPU,
memory
modules

xxxx xoxx

FBh

Running a byte mask test on the
memory needed by the console

CPU,
memory
modules

xxxx xoxo

FAh

A full memory data path test is being
performed on the memory needed by
the console

CPU,
memory
modules

xxxx xoox

F9h

Initializing the console data structures

CPU

xxxx xooo

F8h

Performing auto configuration on the
machine

CPU

xxxx oxxx

F7h

Testing the NVR device

CPU

xxxx oxxo

F6h

Testing the DZ device

System,
mouse,
keyboard

xxxx oxox

F5h

Testing the graphic output device

System,
graphics

xxxx oxoo

F4h

Initializing the console device

System,
graphics

xxxx ooxx

F3h

Entering the console program

System

In this column, x indicates the LED is on; o indicates the LED is off and z indicates either.

B–2 Diagnostic LED Error Codes

Diagnostic LED Error Codes
B.1 Reading Diagnostic LED Codes

B.1.2 TOY/NVR LED Codes, OOOX zzzz
Table B–2 lists the TOY and NVR LED codes.
Table B–2 TOY and NVR LED Codes
LED Depiction

LED Code

Description

FRU

ooox oooo

10h

TOY and NVR clock test has
failed

System

ooox ooox

11h

TOY and NVR test has failed

System

B.1.3 DZ LED Codes, OOXX zzzz
Table B–3 lists the DZ LED codes.
Table B–3 DZ LED Codes
LED Depiction

LED Code

Description

FRU

ooxx oooo

30h

DZ test has been entered

System

ooxx ooox

31h

DZ reset test has failed

System

ooxx ooxo

32h

DZ modem test has failed

System

ooxx ooxx

33h

DZ polled test has failed

System

ooxx ooxo

34h

DZ interrupt test has failed

System

ooxx oxox

35h

LK401 test has failed

Keyboard,
system

ooxx oxxo

36h

Mouse test has failed

Keyboard,
system

Diagnostic LED Error Codes B–3

Diagnostic LED Error Codes
B.1 Reading Diagnostic LED Codes

B.1.4 Memory LED Codes, OXOX zzzz
Table B–4 lists the memory LED codes.
Table B–4 Memory LED Codes
LED Depiction

LED Code

Description

FRU

oxox oooo

50h

Memory byte mask
test has failed

System or memory
modules

oxox ooox

51h

Memory error occurred
in the forward pass

System or memory
modules

oxox ooxo

52h

Memory error occurred
in the reverse pass

System or memory
modules

oxox ooxx

53h

Memory error in parity
test 1

System or memory
modules

oxox oxoo

54h

Memory error in parity
test 2

System or memory
modules

B.1.5 System Device LED Codes, XOOO zzzz
Table B–5 lists the system device LED codes.
Table B–5 System Device LED Codes
LED Depiction

LED Code

Description

FRU

xooo oooo

80h

ROM verify test has failed

System

xooo ooox

81h

Interrupt controller test has
failed

System

xooo ooxo

82h

Invalidate filter test has failed

System

B.1.6 SCSI Device LED Codes, XOXO zzzz
Table B–6 lists the SCSI device LED codes.

B–4 Diagnostic LED Error Codes

Diagnostic LED Error Codes
B.1 Reading Diagnostic LED Codes
Table B–6 SCSI Device LED Codes
LED Depiction

LED Code

Description

FRU

xoxo oooo

A0h

SCSI test has been entered

System

xoxo ooox

A1h

SCSI register test has failed

System

xoxo ooxo

A2h

SCSI interrupt test has failed

System

xoxo ooxx

A3h

SCSI data transfer test has
failed

System

xoxo oxoo

A4h

SCSI map error test has failed

System

xoxo oxox

A5h

SCSI minimal device test has
failed

Device,
system

B.1.7 LCG LED Codes, OOXO zzzz
Table B–7 lists the LCG LED codes.
Table B–7 LCG LED Codes
LED Depiction

LED Code

Description

FRU

ooxo oooo

20h

LCG self test has been entered

System,
graphics

ooxo ooox

21h

LCG video RAM test has failed

System,
graphics

ooxo ooxo

22h

LCG register test has failed

System,
graphics

ooxo ooxx

23h

LCG FIFO test has failed

System,
graphics

ooxo oxoo

24h

LCG interrupt test has failed

System,
graphics

ooxo oxox

25h

LCG address generator test has
failed

System,
graphics

ooxo oxxo

26h

LCG virtual test has failed

System,
graphics

Diagnostic LED Error Codes B–5

Diagnostic LED Error Codes
B.1 Reading Diagnostic LED Codes

B.1.8 NI Device LED Codes, XOOX zzzz
Table B–8 lists the NI LED codes.
Table B–8 NI LED Codes
LED Depiction

LED Code

Description

FRU

xoox oooo

90h

NI self test has been
entered

System

xoox ooox

91h

Network address test
has failed

System

xoox ooxo

92h

NI register test has
failed

System

xoox ooxx

93h

NI initialization test
has failed

System

xoox oxoo

94h

NI internal loopback
/DMA test has failed

System

xoox oxox

95h

NI interrupt test has
failed

System

xoox oxxo

96h

NI CRC test has failed

System

xoox oxxx

97h

NI receive MIS?BUFFER System
test has failed

xoox xooo

98h

NI collision test has
failed

System

xoox xoox

99h

NI external loopback
test has failed

Network, loopback,
system

xoox xoxo

9Ah

NI address filtering
test has failed

System

xoox xoxx

9Bh

NI transmit buffer test
has failed

System

B.1.9 Synchronous Communication Device LED Codes, XXOO zzzz
Table B–9 lists the synchronous communication device LED codes.

B–6 Diagnostic LED Error Codes

Diagnostic LED Error Codes
B.1 Reading Diagnostic LED Codes
Table B–9 Synchronous Communication Device LED Codes
LED Depiction

LED Code

Description

FRU

xxoo oooo

C0h

Comm option code
entered

Sync. comm., system

xxoo ooox

C1h

Comm option ROM
test has failed

Sync. comm., system

xxoo ooxo

C2h

Comm option RAM
test has failed

Sync. comm., system

xxoo ooxx

C3h

Comm option self test
has failed

Sync. comm., system

xxoo oxoo

C4h

Comm option dual
RAM access test has
failed

Sync. comm., system

xxoo oxox

C5h

Comm option dual
ROM_RAM access test
has failed

Sync. comm., system

xxoo oxxo

C6h

Comm option interrupt
test has failed

Sync. comm., system

xxoo oxxx

C7h

Comm option
integrated loopback
test has failed

Sync. comm., system

xxoo xooo

C8h

Comm option reset test
has failed

Sync. comm., system

Diagnostic LED Error Codes B–7

Diagnostic LED Error Codes
B.1 Reading Diagnostic LED Codes

B.1.10 Cache LED Code, OXOO zzzz
Table B–10 lists the cache LED codes.
Table B–10 Cache LED Codes
LED Depiction

LED Code

Description

FRU

oxoo ooox

41h

Error in the data store read
/write

System

oxoo ooxo

42h

Error in the read/write to the tag
area

System

oxoo ooxx

43h

The cache did not contain the
proper state of the valid bit

System

oxoo oxoo

44h

Error during the cache tag
validation

System

oxoo oxox

45h

Unexpected TAG parity error

System

oxoo oxxo

46h

Cache did not provide the
expected data during cache
hit testing

System

oxoo oxxx

47h

Parity not what was expected

System

oxoo xooo

48h

Tag not valid during cache hit
test

System

oxoo xoox

49h

Data not expected during cache
hit test

System

oxoo xoxo

4Ah

Cache write through test failed.
The information in the data
store did not agree with the
information it was to receive.

System

oxoo xoxx

4Bh

Cache write through test
failed. The information in the
memory did not agree with the
information it was to receive.

System

oxoo xoxx

4Ch

Write miss failed

System

B–8 Diagnostic LED Error Codes

C
Troubleshooting
The troubleshooting techniques described in Appendix C do not identify all
possible problems that may occur nor do the actions suggested remedy all
problems. If the powerup tests complete, the error message displayed on the
console can be used to identify a failed FRU, or you can run the self test,
system test, or utility tests in Customer Service mode to help isolate failing
FRUs. Information on interpreting self test error messages is in Appendix A.
Use the diagnostic LEDs on the front of the system to help diagnose problems
where the system is unable to setup the console. Information on interpreting
diagnostic LED codes is in Appendix B.

Troubleshooting C–1

Troubleshooting
C.1 Troubleshooting Symptoms and Corrective Actions

C.1 Troubleshooting Symptoms and Corrective Actions
This section provides problem isolation and repair recommendations. The
VAXstation 4000 VLC system is broken down into the following operating
areas and troubleshooting tables for each area are provided.
•

System problems

•

Monitor problems

•

Mouse/Tablet problems

•

Keyboard problems

•

Drive problems

•

Network problems

•

Audio Problems

•

Expansion box problems

C–2 Troubleshooting

Troubleshooting
C.1 Troubleshooting Symptoms and Corrective Actions
Use the following tables to help isolate a failing FRU in the VAXstation
4000 VLC system. Examin the possiable symptoms in each table and review
the possiable causes. When you have found a match to the symptoms
demonstrated by the problem system, implement the recomended corrective
action.
Table C–1 System Problems
Symptom

Possible Cause

Corrective Action

System fan is off

Power cord is not
connected.

Ensure that the power cord is connected
correctly.

Faulty power cord.

Replace the power cord.

Power supply fan has
failed.

Replace the power supply.

Power cord is not
connected.

Ensure that the power cord is connected
correctly.

Wall socket may not be
operative.

Try a different wall socket, or try an
electrical device that you know works in
the wall socket.

Power light is off.

Turn power to the system off for 10
seconds and then back on. Turn the
system off. Unplug the video cable,
communication cable, and printer. Then
plug all cables back in and turn power to
the system on again.
Power-up display
does not show after 2
minutes.

Defective power supply

Replace the power supply.

Power to the monitor is
not on.

Turn power to the monitor on.

Brightness and contrast
settings need adjusting.

Adjust the monitor brightness and
contrast controls. Verify that the monitor
power switch is on (1).

Monitor cable or video
cable is not connected.

Ensure that the monitor cable and video
cable are connected correctly.

Alternate console switch
is in wrong position.

Turn the power off. Change alternate
console switch to down (off) position. Use
a small pointed object. Do NOT use a
pencil to set the switch. Turn the power
back on.
(continued on next page)

Troubleshooting C–3

Troubleshooting
C.1 Troubleshooting Symptoms and Corrective Actions
Table C–1 (Cont.) System Problems
Symptom

Possible Cause

Corrective Action

Monitor fuse is blown.

See the monitor guide for fuse replacement instructions.

Wall outlet may not be
operative.

Try a different wall outlet or try an
electrical device that you know works
in the same wall outlet.
Check the diagnostic LED code. Compare
the code to the LED error code tables in
Appendix B. Replace monitor failed FRU.
Reference the monitor service manual for
instructions on how to replace the FRU.

Power-up display
contains an error
message.

VRC 16 is powered up
before system.

Power down both VRC 16 and the system,
then re-apply power, turning power to the
system on first.

Possible system error.

Enter the SHOW ERROR command.
Refer to Section 4.1.3 for information on
interpreting the error code.
Interpret the diagnostic LEDs at the front
of the system. Refer to Appendix B for the
diagnostic LED error code meanings.

System does not boot on
power-up.

Software is not installed.

Install the system software. Refer to the
software documentation for installation
instructions.

Default recovery action
is set to halt

Change the default recovery action to boot
the system from the system disk.

Incorrect boot device
was specified.

Change the default recovery action to boot
the system from the system disk.

Power to the expansion
boxes was not supplied
first.

Turn power to the system box off, ensuring
that power to the expansion boxes is on,
and then turn power to the system box on
again..

Boot device is not
properly configured

Enter the SHOW DEVICE command and
ensure that all devices are configured
properly. If not, check the SCSI IDs and
SCSI cables.

Faulty boot device

Run the system exerciser and replace the
drive if defective.
(continued on next page)

C–4 Troubleshooting

Troubleshooting
C.1 Troubleshooting Symptoms and Corrective Actions
Table C–1 (Cont.) System Problems
Symptom

Possible Cause

Corrective Action

Unable to boot off the
network (ESA0).

See Table C–6

Troubleshooting C–5

Troubleshooting
C.1 Troubleshooting Symptoms and Corrective Actions
Table C–2 Monitor Problems
Symptom

Possible Cause

Corrective Action

No display appears on the
monitor screen.

Monitor is not turned on.

Check the monitor on/off
switch. Ensure that the
monitor power cord is
connected correctly at
both ends.

Contrast and brightness controls
are not adjusted correctly.

Adjust the contrast and
brightness controls. Refer
to the monitor guide for
more information.

Alternate console switch is not
set correctly.

Turn the power off. Using
a small, pointed object,
change the alternate
console switch to the off
(down) position. Do not
use pencil. Turn power to
the system on again.

System board or graphics board
failure.

Use the diagnostics
LEDs on the front to
interpret the error code
and identify the failed
FRU.

VRC 16 is powered up before
system.

Turn power to VRC 16
and the system off, then
re-apply power, powering
up the system first.

Table C–3 Mouse and Tablet Problems
Symptom

Possible Cause

Corrective Action

System boots but mouse or
optional tablet pointer does not
appear on the screen, or monitor
does not respond to pointing
device commands.

Pointing device cable is installed
incorrectly or is loose.

Turn off the system.
Unplug and then replug
the cable to rest the
device. Turn power to the
system on again.

The system is halted; no pointer
appears on the screen.

Reboot the system.

Pointing device is faulty.

Replace the pointing
device.

C–6 Troubleshooting

Troubleshooting
C.1 Troubleshooting Symptoms and Corrective Actions
Table C–4 Keyboard Problems
Symptom

Possible Cause

Corrective Action

Keys do not work.

The hold screen key function is
active and the hold screen light
is on.

Press the hold screen key
to release the function.

Keyboard cable is loose or not
connected.

Ensure that the keyboard
cable is connected
correctly.

Keyboard has failed.

Replace the keyboard.

Symptom

Possible Cause

Corrective Action

Internal drive does not work.

Two SCSI identifiers are set to
the same ID number.

Reset the SCSI IDs to a
unique number.

Loose cables.

Ensure that all cables are
connected correctly.

Defective drive.

Run thje diagnostics to
isolate the fault. Replace
the FRU.

Symptom

Possible Cause

Corrective Action

NI error message displays when
verifing Ethernet.

No ThinWire or ThickWire
terminator or cable was
installed.

Attach a ThinWire or
Standard Ethernet
terminator.

Network switch is not set
properly.

If Ethernet is not being
used, move the network
switch to the left, toward
standard Ethernet.

Terminator is missing from
network.

If a ThinWire cable was
removed, replace the
cable with a terminator.

Table C–5 Drive Problems

Table C–6 Network Problems

(continued on next page)

Troubleshooting C–7

Troubleshooting
C.1 Troubleshooting Symptoms and Corrective Actions
Table C–6 (Cont.) Network Problems
Symptom

Possible Cause

Corrective Action

Cable connection is loose.

Check that all connections on the Ethernet
segment are secure.

Power supply failure.

Replace the power supply.

LEDs 7,4,3, and 0 on the back of
the system are on.

T-connector is disconnected.

Make sure that the Tconnector is disconnected
to an operating ThinWire
Ethernet segment.

Can not boot from the network.

Local network problem.

Problem is most likely
caused by the customer
server system or the
network

Defective NI interface

Run diagnostics (TEST
NI command) with
terminators attached.
Replace faulty FRU if test
fails.

C–8 Troubleshooting

Troubleshooting
C.1 Troubleshooting Symptoms and Corrective Actions
Table C–7 Expansion Box Problems
Symptom

Possible Cause

Corrective Action

Expansion box fan is off

Power cord is not connected.

Ensure that the power
cord is connected
correctly.

Faulty power cord.

Replace power cord.

Power supply fan has failed.

Replace the power supply.

Power cord is not connected.

Ensure that the power
cord is connected
correctly.

Wall socket may not be
operative.

Try a different wall
socket, or try an electrical
device that you know
works in the wall socket.

Power light is off.

Turn power to the system
off for about 10 seconds
and then back on. Turn
the system off again.
Drive does not work.

Software does not work from the
diskette drive, or a diskette read
or write error message displays.

Defective power supply

Replace the power supply.

Loose cables.

Ensure that all cables are
connected.

Two SCSI identifiers are set to
the same ID number.

Reset the SCSI IDs to
an unique number. (See
BA46 Storage Expansion
Box Owner’s Guide for
SCSI settings.)

Defective drive.

Run the diagnostics to
isolate the fault. Replace
the FRU.

No diskette is in the diskette
drive.

Insert a diskette with
software following
the instructions in the
software documentation.

Diskette was inserted incorrectly.

Ensure that the writeprotect notch on the
dsikette is to your left
when you insert the
diskette and that the
label faces up.
(continued on next page)

Troubleshooting C–9

Troubleshooting
C.1 Troubleshooting Symptoms and Corrective Actions
Table C–7 (Cont.) Expansion Box Problems
Symptom

C–10 Troubleshooting

Possible Cause

Corrective Action

Diskette is damaged or does not
contain software.

Try another diskette that
contains software.

Two SCSI identifiers are set to
the same ID number.

Reset the SCSI IDs to an
unique number.

Loose cables.

Check to make sure all
cables are connected.

Defective drive.

Run diagnostics to isolate
fault. Replace FRU.

D
VAXstation 4000 VLC Part Numbers
D.1 Part Numbers
Table D–1 contains the part numbers for the VAXstation 4000 VLC workstation
field replaceable units. These FRUs can be ordered through Digital Services.

VAXstation 4000 VLC Part Numbers D–1

VAXstation 4000 VLC Part Numbers
D.1 Part Numbers
Table D–1 FRU Part Numbers
FRU

Part Number

Power supply

H7109-00

Internal power cable

17-02876-01

VS4000 VLC System module

54-20768-01

Graphics module 1 1024 x 768 @ 60 Hz

54-20772-01

Graphics module 1 1024 x 864 @ 72 Hz

54-20772-01

Graphics module 2 1024 X 786 @ 60 Hz

54-20774-01

Graphics module 2 640 x 480 @ 60 Hz

54-20774-01

Graphics module 3 1280 x 1024 @ 72 Hz

54-20776-01

Graphics module 4 1280 x 1024 @ 66 Hz

54-20776-02

Graphics Module 5 10245 x 788 @ 66 Hz

54-20776-03

Internal SCSI data cable

17-03191-01

RZ23L 121MB drive

RZ23L-E

Memory module 4MEG (20-36110-05)

MS40-AA

D–2 VAXstation 4000 VLC Part Numbers

VAXstation 4000 VLC Part Numbers
D.1 Part Numbers
Table D–2 and Table D–3 contain miscellaneous VAXstation 4000 VLC workstation
FRUs. These FRUs can be ordered through manufacturing.
Table D–2 Miscellaneous FRU Part Numbers
FRU

Part Number

LK401-AA Keyboard

LK401-AA

LKXXX-AA Tablet

LKXXX-AB

VSXXX-AA Mouse

VSXXX-AA

Hanging device

BA10X-AA

Metal enclosure

70-29792-01

Cricket clip

74-43478-01

Plastic rivet

12-36064-01

Table D–3 System and Expansion Box Cables and Terminators
FRU

Part Number

Ethernet terminator (Thickwire)

12-22196-01/02

Ethernet terminator (ThinWire)

12-25869-01

Thick/Thin Wire Ethernet Kit

70-26209-01

Printer port

H3103

External SCSI port

H8574A

Cable, high resolution 10’

17-02720-01

Cable, high resolution 3’

17-02720-02

VAXstation 4000 VLC Part Numbers D–3

VAXstation 4000 VLC Part Numbers
D.1 Part Numbers
Table D–4 Expansion Box (SZ03) FRU Part Numbers
FRU

Part Number

SCSI-FDI Controller W/RX26 Support

54-20764-03

RX26 Diskette drive

RX26-AA

RZ225

RZ225-E

RZ03 Chassie and power supply

30-36532-01

RZ26 Ribbon cable

17-00285-00

Table D–5 Expansion Box (SZ16) FRU Part Numbers
Expansion box wire harness power cable

17-02876-02

Expansion box internal SCSI data cable

70-28109-01

Expansion box SCSI ID select cable

17-02445-01

Expansion box SCSI ID select switch module

54-19325-02

Expansion box load module

54-20422-01

H7819-AA Power supply

30-34690-01

TZK10 QIC Tape drive

TZK10-AA

RX33-A Floppy drive

RX33-A

RX26 Floppy drive @ 5% D.C.

70-28100-01

SCSI-FDI Control module

54-20764-01

TL204 Tape drive

TL204-AA

RZ55 Whole drive

RZ55-E

RZ56 PCB

29-27889-01

RZ56 HDA

29-27890-01

RZ57 PCB

29-28159-01

RZ57 HDA

70-28158-01

Vertical stand

BA46X-AA

Multiple box stand

H9855-AA

SCSI bracket assembly

70-28097-01

Front bezel blank

70-28099-01

Front bezel opening for 5 1/4" drive

70-28099-02
(continued on next page)

D–4 VAXstation 4000 VLC Part Numbers

VAXstation 4000 VLC Part Numbers
D.1 Part Numbers
Table D–5 (Cont.) Expansion Box (SZ16) FRU Part Numbers
Front bezel opening for 3 1/2" drive

70-28099-03

Base plastic assemblyy

70-28096-01

Top plastic cover

70-28107-01

Internal SCSI data cable assembly

70-28109-01

Half-hight 3 1/2" drive mounting bracket

74-40429-01

5 1/4" Drive mounting bracket

74-40430-01

Various drive mounting bracket

74-40431-01

Rear opening filler

74-41472-01

Rear opening RFI shield filler

74-41473-01

Table D–6 list the available VAXstation 4000 VLC workstation monitors and
part numbers.
Table D–6 VAXstation 4000 VLC Monitors
FRU

Part Number

14" Monochrome

PC4XV-A2

19" Monochrome

VR262

19" Color

VR299

13" Color

VRT13-DA,D3,D4

16" Color

VRT16-DA,D4,HA,H4

19" Monochrome

VR319-DA,D4

19" Color

VR320-CA,C4

19" Color

VRT19-DA,D3,D4,HA,H4

17" Color

VRM17-AA,A3,A4

Table D–7 is a cross reference of each monitor and graphic module available
with the VAXstation 4000 VLC workstation.

VAXstation 4000 VLC Part Numbers D–5

VAXstation 4000 VLC Part Numbers
D.1 Part Numbers
Table D–7 Monitor and Graphic Module Cross Reference
Monitor

Graphic Module

Monochrome 8-plane greyscale graphic systems
17" Monitor (VRM17)
19" Monitor (VR319)

PV200-BA/BB/BC
PV211-B3/BD/BE

Color 8-plane graphic systems
13" Trinitron monitor (VRT13)
16" Trinitron monitor (VRT16)

PV211-DN/DP/DR
PV200-CF/CH/CJ

Monochrome 8-plane greyscale graphic systems
17" Monitor (VRM17)
19" Monitor (VR319)

PV21A-AE/AF/AH
PV21A-AB/AC/AD

Color 8-plane graphic systems
13" Trinitron Monitor (VRT13)
16" Trinitron Monitor (VRT16)
19" Trinitron Monitor (VRT19)

PV21A-AJ/AK/AL
PV21A-AM/AN/AP
PV21A-AR/AS/AT

D–6 VAXstation 4000 VLC Part Numbers

Index
A
Audio Self Test, 4–14
AUD Self Test
see audio self test, 4–14
AVS
see voltage select, 2–4

B
Battery Backup, 1–18
Broadcast Address, 1–21

C
Cache Self Test, 4–11
Configuration Table, 3–9
device, 3–11
main, 3–10
Console Driver Interface, 3–19
Console Mode, 3–3
Console Overview, 3–3
Console Port Driver, 3–22
CPU, 1–6
Cricket Clip, 2–3

D
Diagnostic LED Codes, B–1
cache, B–8
DZ, B–3
LCG, B–5
memory, B–4
NI, B–6
SCSI device, B–4

Diagnostic LED Codes (cont’d)
sysnc comm device, B–6
system device, B–4
TOY and NVR, B–3
Diagnostic LEDs Codes
powerup/initialization, B–2
Diagnostic Test, 4–1
DMA Mapping, 1–13
Driver Descriptor, 3–15
Drive Removal, 5–7
DZ Self Test, 4–10

E
Error Codes, A–1
audio, A–17
audio extended codes, A–17
cache, A–22
cache extended codes, A–22
DZ, A–2
DZ suberror, A–3
floating point unit (FPU), A–19
FPU extended code, A–21
interval timer, A–7
LCG, A–23
LCG extended codes, A–26
memory, A–5
memory extended code, A–5
memory management unit (MMU), A–6
NI, A–29
NI extended code, A–33
SCSI, A–8
SCSI extended code, A–9
SYS self-test extended code, A–7
system device, A–7

Index–1

Error Codes (cont’d)
TOY/NVR, A–1
Extended Self Test, 3–4, 4–1

F
Field Replaceable Units, 5–1
firmware, 3–1
Floating Point Unit Self Test, 4–11
FPU Self Test
see floating point unit self test, 4–11
FRUs
see field replaceable units, 5–1

Memory Self Test, 4–12
Module Removal
MS44 memory module, 5–14
Multicast Address, 1–21
Multicast-group Address, 1–21

N
Network Addresses, 1–21
Network Controller, 1–20
Network Interconnect Self Test, 4–13
NI Self Test
see network interconnect self test, 4–13
NVR Self Test, 4–8

G
Graphics Controller, 1–15

H
Halt, 3–3
Hard Disk Drive Replacement, 5–9

I
I/O Panel, 2–7, 2–8
Interfacing Diagnostic Drivers, 3–17
Internal Cabling, 2–7
Interrupt Sources, 1–10
Interrupt Vector, 1–10
Interval Timer Self Test, 4–12
IT Self Test
see interval timer self test, 4–12

L
LCG Removal, 5–13
LCG Self Test, 4–9

M
Main Memory, 1–11
Main Memory Requests, 1–12
Mass Storage, 2–3
Memorr Module Identification, 5–16

Index–2

P
Packet Format, 1–20
Physical Address, 1–21
Power Supply, 2–3, 5–11
removal, 5–11
Power Supply Specifications, 2–4
Power-Up Initialization Code
power-up sequence, 3–2
Power-Up Initialization Code Overview, 3–2
Power-UP Self Test, 4–1

R
Removing and Replacing, 5–1

S
Screen Formats
graphics controller, 1–16
SCSI Bus Signals, 1–22
SCSI Self Test, 4–14
Serial Line Controller, 1–17
Shared Console Interface Area, 3–20
SYS Self Test
see system self test, 4–11
System Box, 2–1, 2–2
System Box right side, 2–6
System Console Commands
Memory, 4–28
DEPOSIT, 4–28

System Console Commands
Memory (cont’d)
EXAMINE, 4–29
FIND, 4–30
MOVE, 4–31
Miscellaneous Commands, 4–33
HELP or ?, 4–34
LOGIN, 4–34
REPEAT, 4–34
Processor Control, 4–31
BOOT, 4–31
CONTINUE, 4–32
START, 4–33
SET/SHOW, 4–17, 4–19, 4–23
BFLG, 4–19
BOOT, 4–19
CONFIG, 4–20
DEVICE, 4–20
DIAGENV, 4–21
ERROR, 4–23
ETHER, 4–23
FBOOT, 4–24
HALT, 4–24
KBD, 4–25
MEM, 4–25
MOP, 4–26
PSE and PWSD, 4–26
SCSI, 4–27

TRIGGER, 4–27
VER, 4–27
System Controls, 2–6
System Cover
removal, 5–6
System Devices, 2–7
System Module Removal, 5–13
System ROM
overview, 3–6
part Format, 3–6
set format, 3–7
System Self Test, 4–11

T
Time-of-Year Clock, 1–18
TOY Self Test, 4–8
Troubleshooting
table, C–2

U
Utilities Test, 4–1
Utility Test, 3–5

V
Voltage Select, 2–4

Index–3