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August 1993

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Document:	VAX 4000 Model 100A Troubleshooting & Diagnostics Information
Order Number:	EK-505AA-TS
Revision:	A01
Pages:	48
Original Filename:

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VAX 4000 Model 100A
Troubleshooting and Diagnostics
Information
Order Number: EK–505AA–TS. A01

August 1993
This manual describes the troubleshooting and diagnostic procedures that
you can use to solve basic problems with the VAX 4000 Model 100A system.

Digital Equipment Corporation
Maynard, Massachusetts

August 1993
The information in this document is subject to change without notice and should not be
construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation
assumes no responsibility for any errors that may appear in this document.
The software described in this document is furnished under a license and may be used or copied
only in accordance with the terms of such license.
No responsibility is assumed for the use or reliability of software on equipment that is not
supplied by Digital Equipment Corporation or its affiliated companies.
Restricted Rights: Use, duplication, or disclosure by the U.S. Government is subject to
restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer
Software clause at DFARS 252.227-7013.
© Digital Equipment Corporation 1993.
All Rights Reserved.
The postpaid Reader’s Comments forms at the end of this document request your critical
evaluation to assist in preparing future documentation.
The following are trademarks of Digital Equipment Corporation: Digital, RX, ThinWire, VAX,
VAX DOCUMENT, VMS, and the DIGITAL logo.
All other trademarks and registered trademarks are the property of their respective holders.
S2280

This document was prepared using VAX DOCUMENT, Version 2.1.

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

1 Troubleshooting and Diagnosing Problems
1.1
1.1.1
1.2
1.2.1
1.2.2
1.3

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Troubleshooting Table . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Tests and Commands . . . . . . . . . . . . . . . . . . . . . . . . .
Power-Up Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Self-Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contacting Digital Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1
1–2
1–8
1–8
1–10
1–14

2 Running the Diagnostic Monitor
MDM Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparing to Run MDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparing to Run MDM on a Diskless or Tapeless System . .
Preparing to Run MDM on an RF-Series Integrated Storage
Element (ISE) or Hard Disk . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2.3
Preparing to Run MDM on a DSSI VAXcluster . . . . . . . . . . .
2.2.3.1
MDM on a DSSI VAXcluster with One TKxx Tape
Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2.3.2
MDM on a DSSI VAXcluster with Two TKxx Tape
Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3
Starting MDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.1
Tape Drive Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.1.1
Booting MDM Manually . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.1.2
Booting MDM Automatically . . . . . . . . . . . . . . . . . . . . . .
2.3.2
RRD-Series Compact Disc Instructions . . . . . . . . . . . . . . . . .
2.4
MDM Introductory Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5
Main Menu Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.1
Test the System Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.2
Display System Configuration and Devices Option . . . . . . . .

2.1
2.2
2.2.1
2.2.2

2–2
2–2
2–3
2–3
2–3
2–4
2–5
2–6
2–6
2–7
2–7
2–8
2–9
2–10
2–10
2–12

iii

2.5.3
Display the System Utilities Menu Option . . . . . . . . . . . . . . .
2.5.3.1
IOADDRES Function . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.3.2
Update Drive Unit Number for RRD-Series Function . . .
2.5.4
Display the Service Menu Option . . . . . . . . . . . . . . . . . . . . . .
2.5.5
Display the Connect/Ignore Menu Option . . . . . . . . . . . . . . .
2.5.6
Select Single Device Tests Option . . . . . . . . . . . . . . . . . . . . .
2.6
Exiting MDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–14
2–15
2–15
2–15
2–16
2–16
2–18

Index
Examples
1–1
1–2
2–1

Show Configuration Command . . . . . . . . . . . . . . . . . . . . . . . .
Listing Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Typical Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–10
1–11
2–12

Status LED Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–15

Basic Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status LED Display and Break Enable Meanings . . . . . . . . .

1–3
1–16

Figures
1–1

Tables
1–1
1–2

Preface
This manual describes the troubleshooting and diagnostic procedures that you
can use to solve basic problems with the VAX 4000 Model 100A system.
This manual is intended for people who have had some experience using
computers.
This manual has two chapters and an index.
See the VAX 4000 Model 100A Operator Information manual for the list of
associated and related documents.

Conventions
The following conventions are used in this manual:
Convention

Description

MONOSPACE

Text displayed on the screen is shown in monospace type.

italic type

Italic type emphasizes important information and indicates the
complete titles of manuals.

boldface type

Boldface type in examples indicates user input. Boldface type in text
indicates the first instance of terms defined either in the text, in the
glossary, or both.

Note

A note contains information that is of special importance to the user.

1
Troubleshooting and Diagnosing Problems
This chapter describes the troubleshooting procedures and diagnostic
commands that you can use to solve basic problems with the VAX 4000 Model
100A system. It contains information on the following subjects:
•

Troubleshooting

•

Diagnostic tests and commands

•

Contacting Digital™ Services

It also lists the information that you must give to your Digital Services
representative and tells you where to find this information.

1.1 Troubleshooting
If a problem occurs, you must first make sure that all the cables, loopback
connectors, and terminators are correctly connected and that the connectors
are not damaged, for example, the pins may be broken or short-circuited.
Follow these steps:
1. Shut down the operating system following the procedures described in the
operating system documentation.
2. Turn off the console terminal and all the peripheral devices such as
printers and modems.
3. Turn off all the expansion boxes.
4. Turn off the system unit.
5. Check that the following cables, if installed, are correctly connected at both
ends and that the connectors are not damaged:
•

Console terminal cable (linking the console terminal to the system unit)

•

Console terminal power cord

•

System unit power cord

•

Expansion box SCSI cables
Troubleshooting and Diagnosing Problems 1–1

•

Expansion box Q–bus cables

•

Expansion box DSSI cable(s)

•

Expansion box power cords

•

ThinWire™ Ethernet cable or standard Ethernet cable

6. Check that the following terminators, if installed, are correctly connected
and are not damaged:
•

DSSI terminator(s)

•

SCSI terminator

•

ThinWire Ethernet terminator (T-connector and two terminators)

If you have correctly followed steps 1 to 5, the on/off switches on all
the components are set to the off (O) position, and you have solved any
problems caused by incorrectly connected cables or terminators.
7. Set the on/off switches on the following equipment to the on ( | ) position in
the following order:
a. Expansion boxes
b. Peripherals
c.

Console terminal

d. System unit
The system responds with the power-up test display. If it does not, see
Section 1.1.1.

1.1.1 Using the Troubleshooting Table
Table 1–1 suggests the corrective actions for certain system problems. If you
have a problem with the system, follow these steps:
1. Write down the symptoms of the problem.
2. Check the Symptom column in Table 1–1 for a match.
3. Check the causes of the symptom in the Possible Cause column. If the
column lists more than one possible cause, check the possible causes and
their suggested solutions in the order listed.
4. Follow the advice in the Suggested Solution column.
5. See Section 1.3 if the problem persists.

1–2 Troubleshooting and Diagnosing Problems

Table 1–1 Basic Troubleshooting
Symptom

Possible Cause

Suggested Solution

The power cord is not
connected. The power cord
may be faulty. The power
socket may not be working.

Make sure that all the power cords
are connected correctly at both
ends. Try a power cord that works
or test the power socket with an
appliance that works.

The overload protection
circuitry of the power
supply may have shut down
because of an abnormal
condition on the power line.

Turn the system off and then turn
it back on.

The power supply unit
(PSU) is faulty.

Contact your Digital Services
representative.

The console terminal is
plugged into port 0.

The console only functions via port
3. Move connection to port 3.

The power cord is not
connected. The power cord
may be faulty. The power
socket may not be working.

Make sure that all the power cords
are connected correctly at both
ends. Try a power cord that works
or test the power socket with an
appliance that works.

The terminal fuse may have
blown.

Replace the blown terminal fuse.
See the terminal documentation.

The terminal settings may
be incorrect.

See the VAX 4000 Model 100A
Operator Information manual for
the list of correct terminal settings.
See the terminal documentation
for information on setting up the
terminal.

The port to which the
terminal connects may be
faulty.

Try connecting the terminal to
another system. If this solution
works, the port to which the
terminal was connected is faulty.
If the terminal still does not
operate, it is faulty. In either
case, contact your Digital Services
representative.

System Problems
The system unit fan is off
or the power light is off.

The power-up display does
not show after 20 seconds.

(continued on next page)

Troubleshooting and Diagnosing Problems 1–3

Table 1–1 (Cont.) Basic Troubleshooting
Symptom

Possible Cause

Suggested Solution

The terminal cable may be
faulty.

Connect the terminal cable and
the terminal to another system. If
the connected terminal works, the
console circuitry or MMJ connector
is faulty. Otherwise, the cable
is faulty. Contact your Digital
Services representative.

The break/enable switch is
in the wrong position.

Turn off the system unit. Set the
break/enable switch to the down
position, then turn on the system
unit.

The power-up test display
contains unexpected
characters.

The terminal settings are
incorrect or the console
circuitry is faulty.

Make sure the terminal settings
are correct, then run the powerup test again. If the terminal is
set correctly, contact your Digital
Services representative.

The system fails to boot the
operating system.

The system defaults are
incorrectly set.

Set the system defaults as
described in the VMS Factory
Installed Software User Guide,
then try booting the system again.
If the system still fails to boot,
contact your Digital Services
representative.

System Problems

EF/RF-Series Integrated Storage Element (ISE) Problems1
A write error is message
displayed; the Write-Protect
button glows orange. For
EF/RF ISEs, Mounted
wrtlck displays when DCL
command SHOW
DEVICE DI is issued.

The ISE is write-protected.

Press and release the Write-Protect
button. For EF/RF, remove WriteProtect.

The fault indicator is lit or
blinking.

The bus node ID plug is not
installed.

Install the appropriate plug.

1 Only RF3X drives are internal; all other RF-series drives are external.

(continued on next page)

1–4 Troubleshooting and Diagnosing Problems

Table 1–1 (Cont.) Basic Troubleshooting
Symptom

Possible Cause

Suggested Solution

The operate lever does not
slide.

The tape cartridge is in use.

Wait for the green LED to turn
on and try again. If the problem
persists, do not use the drive.
Contact your Digital Services
representative.

The operate lever does not
lock.

The tape cartridge is not
inserted correctly.

Reinsert the tape cartridge. If
the problem persists, contact your
Digital Services representative.

TZ30 Tape Drive Problems

The tape does not load.

Press and release the unload
button. Wait for the green LED
to turn on before sliding the lever
and removing the tape. If the
LED flashes, contact your Digital
Services representative.

The system cannot write to
the tape.

The write-protect switch
is in the write-protect
position.

If the write-protect LED is on,
remove the tape, reset the switch
and try writing to the tape again. If
the problem persists, contact your
Digital Services representative.

The data read from the tape
cartridge is corrupted.

The tape drive head may be
dirty.

See the VAX 4000 Model 100A
Operator Information manual for
information on cleaning the drive
head.

The tape does not eject.

The tape is not rewound.
The operate lever is in the
lock position.

Follow the procedure for removing
a tape from the TZ30 described in
the VAX 4000 Model 100A Operator
Information manual.

TLZ06 Cassette Tape Drive Problems
The system cannot write to
the cassette tape.

The write-protect switch
is in the write-protect
position.

If the write-protect LED is on,
remove the tape, reset the switch
and try writing to the tape again. If
the problem persists, contact your
Digital Services representative.

The cassette tape is not
loaded.

Load the cassette tape.
(continued on next page)

1–6 Troubleshooting and Diagnosing Problems

Table 1–1 (Cont.) Basic Troubleshooting
Symptom

Possible Cause

Suggested Solution

TLZ06 Cassette Tape Drive Problems
The write-protect LED
flashes.

The tape drive heads are
dirty or the tape is worn.

Clean the drive heads (see the
VAX 4000 Model 100A Operator
Information manual). If that
doesn’t work, use a new tape.

The data read from the
cassette tape is corrupted.

The tape drive heads may
be dirty.

See the VAX 4000 Model 100A
Operator Information manual for
information on cleaning the drive
head.

TZK10 Quarter Inch Cartridge (QIC) Tape Drive Problems
The data read from the QIC
tape is corrupted.

The drive head is dirty.

Clean the drive head. See the
VAX 4000 Model 100A Operator
Information manual.

The system cannot write to
the QIC tape.

The write-protect switch
is in the write-protect
position.

Remove the QIC tape, reset the
switch and try writing to the QIC
tape again. If the problem persists,
contact your Digital Services
representative.

The system cannot read
from or write to the QIC
tape.

The QIC tape may be faulty.

Remove the QIC tape. If the amber
LED turns off when you remove
the QIC tape, the tape is probably
faulty. Try a different QIC tape.
If the amber LED stays on or if
the problem persists, contact your
Digital Services representative.

Troubleshooting and Diagnosing Problems 1–7

1.2 Diagnostic Tests and Commands
There are a number of diagnostic tests and commands that can help you to
isolate a problem with the system unit. These tests and commands are as
follows:
•

Power-up tests

•

Self-tests1

•

Configuration display1

•

Error display1

The following sections describe these tests and commands.

1.2.1 Power-Up Tests
The system runs the power-up tests each time you turn on the system. If the
system passes the tests, it responds with a display similar to the following
example:
KA52-A Vn.n, VMB 2.14
Performing normal system tests.
74..73..72..71..70..69..68..67..66..65..64..63..62..61..60..59..
58..57..56..55..54..53..52..51..50..49..48..47..46..45..44..43..
42..41..40..39..38..37..36..35..34..33..32..31..30..29..28..27..
26..25..24..23..22..21..20..19..18..17..16..15..14..13..12..11..
10..09..08..07..06..05..04..03..
Tests completed.

>>>

Central Processing Unit (CPU) Name, Firmware Version Number, and
Virtual Memory Boot (VMB) Version Number
Read-Only Memory (ROM) based diagnostics countdown

Status Message

Console Prompt

You can use these tests and commands in privileged console mode only if the console
security feature is enabled and the password is set. See the VAX 4000 Model 100A
Customer Technical Information manual for information on the console security
feature.

1–8 Troubleshooting and Diagnosing Problems

If SIMM_OD is not present or not plugged in correctly, the system responds
with a display similar to the following example:
KA52-A Vn.n, VMB 2.14
Performing normal system tests.
74..73..72..71..70..69..68..67..66..65..64..63..62..
? Test_Subtest_DC_88 Loop_Subtest=05 Err_Type=FF DE_NO_Memory_present.lis
Vec=0000 Prev_Errs=0000 P1=E04EE04E P2=00000000 P3=00000000 P4=00001006
P5=00000000 P6=7F337F7F P7=00000000 P8=00000000 P9=FFFF0000 P10=2006270C
r0=00000008 r1=21018000 r2=E04EE04E r3=80000000 r4=01000000 r5=04000000
r6=00000002 r7=00000000 r8=00000000 r9=20140758 r10=FFFFFFFE r11=FFFFFFFF
dser=0000 cesr=00000000 icsr=01 pcsts=F800 pcctl=FC00 cctl=00000006
bcetsts=03E0 bcedsts=0400 cefsts=00007E80 nests=00 mmcdsr=01FFFE40
mesr=00000000
Error: SIMM Set 0 (0A,0B,0C,0D), SSR = E04E
SIMM_0A = 16MB
SIMM_0B = 16MB
SIMM_0C = 16MB

SIMM_0D = 00MB ??

Total of 0MB, 0 good pages, 0 bad pages, 0 reserved pages
Normal operation not possible.

>>>
Error Message
Error Summary

Status Message

Troubleshooting and Diagnosing Problems 1–9

1.2.2 Self-Tests
Self-tests perform the same tests as the power-up tests except for one
difference; the power-up tests test all the devices in the system, whereas
the self-tests allow you to test a single device.
Execution of the SHOW CONFIG command produces the display showing the
failure of the device DZ, as shown in Example 1–1.
Example 1–1 Show Configuration Command
>>>SHOW CONF
KA52-A Vn.n, VMB 2.14
08-00-2B-2B-16-91
80MB
TstNbr DevNam
------ -------0
CPU_BD
A8
MEMORY
E4
DZ
E0
SCSI
5F
5C
0
E8

NI
DSSI
QBUS
COMM

ASYNC

Info
-------------------------OK
OK
?? 001 0048
OK
3-RZ24L 6-Adapter 7-RRD42
OK
OK
OK
OK
DSW41/42 2 CHANNEL V3.11-47
OK
DHW41/2 V1.6

>>>
Listing showing failure of DZ
If you encounter an error in the power-up test display or the show configuration
display, specific steps should be followed.
1. Make sure that all the required cables and terminators are securely
connected to the proper ports by following the procedure described in
Section 1.1.
2. Run the self-test on each device that failed.

1–10 Troubleshooting and Diagnosing Problems

In the example in this section, the show configuration display shows the
the DZ device has failed. The self-test number for this device is E4. See
Example 1–2. Test E4 should be run by entering T E4 at the console
prompt. If the error remains, show the test results to your Digital Services
representative.
To obtain a listing of the specific tests for the desired device, enter the
command shown in the display.
Example 1–2 Listing Diagnostics
>>>T 9E
Test
# Address Name
Parameters
___________________________________________________________________________
20053800 SCB
20054590 De_executive
30 200637BC Memory_Init_Bitmap *** mark_Hard_SBEs ******
31 20064094 Memory_Setup_CSRs **********
32 20064464 NMC_registers
**********
33 20064600 NMC_powerup
**
34 2005D0A4 SSC_ROM
***
35 20067394 B_Cache_diag_mode bypass_test_mask *********
37 200681C4 Cache_w_Memory
bypass_test_mask *********
40 2006242C Memory_count_pages SIMM_set0 SIMM_set1 Soft_errs_allowed *****
41 200579C0 Board_Reset
*
42 2005B56C Chk_for_Interrupts **********
46 200670D4 P_Cache_diag_mode bypass_test_mask *********
47 20063D7C Memory_Refresh
start_a end incr cont_on_err time_seconds ***
48 20061558 Memory_Addr_shorts start_add end_add * cont_on_err pat2 pat3 ***
4A 200634E0 Memory_ECC_SBEs
start_add end_add add_incr cont_on_err ******
4B 20061D78 Memory_Byte_Errors start_add end_add add_incr cont_on_err ******
4C 20062E90 Memory_ECC_Logic start_add end_add add_incr cont_on_err ******
4D 200613BC Memory_Address
start_add end_add add_incr cont_on_err ******
4E 20061AF8 Memory_Byte
start_add end_add add_incr cont_on_err ******
4F 20062628 Memory_Data
start_add end_add add_incr cont_on_err ******
51 2005BA5C FPA
**********
52 2005BED8 SSC_Prog_timers
which_timer wait_time_us ***
53 2005C1A8 SSC_TOY_Clock
repeat_test_250ms_ea Tolerance ***
54 2005B670 Virtual_Mode
********
55 2005C360 Interval_Timer
*****
58 200602F0 SHAC_RESET
port_number time_secs not_pres
59 2005F584 SGEC_LPBCK_ASSIST time_secs **
5C 2005FAEC SHAC
bypass_test_mask *******
5F 2005E870 SGEC
loopback_type no_ram_tests ******
(continued on next page)

Troubleshooting and Diagnosing Problems 1–11

Example 1–2 (Cont.) Listing Diagnostics
63 2005CF48 QDSS_any
input_csr selftest_r0 selftest_r1 ******
80 200649FC CQBIC_memory
bypass_test_mask *********
81 2005CBA8 Qbus_MSCP
IP_csr ******
82 2005CD70 Qbus_DELQA
device_num_addr ****
83 20058C70 QZA_Intlpbck1
controller_number ********
84 2005A328 QZA_Intlpbck2
controller_number *********
85 20057EE4 QZA_memory
incr test_pattern controller_number *******
86 200583A0 QZA_DMA
Controller_number main_mem_buf ********
90 2005BE54 CQBIC_registers
*
91 2005BDE8 CQBIC_powerup
**
99 200647D0 Flush_Ena_Caches dis_flush_VIC dis_flush_BC dis_flush_PC
9A 2005D1DC INTERACTION
pass_count disable_device ****
9B 20064680 Init_memory
***
9C 2005D1A8 List_CPU_registers *
9D 2005DEC4 Utility
Modify_CPU_type *********
9E 2005C518 List_diagnostics script_number *
9F 20060888 Create_A0_Script **********
C1 20057B90 SSC_RAM_Data
*
C2 20057D68 SSC_RAM_Data_Addr *
C5 2005E770 SSC_registers
*
C6 20057AD4 SSC_powerup
*********
D0 20066C98 V_Cache_diag_mode bypass_test_mask *********
D2 20065220 O_Bit_diag_mode
bypass_test_mask *********
DA 20067FE8 PB_Flush_Cache
**********
DB 20065A18 Speed
print_speed *********
DC 200642BC NO_Memory_present *
DD 200661FC B_Cache_Data_debug start_add end_add add_incr *******
DE 20065DB4 B_Cache_Tag_Debug start_add end_add add_incr *******
DF 20065614 O_BIT_DEBUG
start_add end_add add_incr seg_incr ******
E0 20068498 SCSI
environment reset_bus time_s *******
E1 20068578 SCSI_Utility
environment util_nbr target_ID lun ******
E2 20068630 SCSI_MAP
bypass_test addr_incr_data_tst ********
E4 200689D4 DZ
environment *********
E8 20068B4C SYNC
environment *********
E9 20068BF4 SYNC_Utility
environment *********
EC 20068CAC ASYNC
environment *********
Scripts
# Description
(continued on next page)

1–12 Troubleshooting and Diagnosing Problems

Example 1–2 (Cont.) Listing Diagnostics
A0 User defined scripts
A1 Powerup tests, Functional Verify, continue on error, numeric countdown
A3 Functional Verify, stop on error, test # announcements
A4 Loop on A3 Functional Verify
A6 Memory tests, mark only multiple bit errors
A7 Memory tests
A8 Memory acceptance tests, mark single and multi-bit errors, call A7
A9 Memory tests, stop on error
B2 Extended tests plus BF
B5 Extended tests, then loop
BF DZ, SYNC, ASYNC with loopbacks
>>>

Command to list the self-tests
Specific test for the DZ device

Troubleshooting and Diagnosing Problems 1–13

1.3 Contacting Digital Services
WARNING
Only authorized service personnel should service this
equipment.
If you have followed the procedures in this chapter but the problem remains
unsolved, your Digital Services representative can help you. Before you place
your call, follow these steps:
1. Write down a description of the problem, including the error messages and
the number of the self-tests that failed.
2. Look at the status LED display on the back of the system unit and write
down the numbers of the LEDs that are on (see Figure 1–1 and Table 1–2).
3. List the steps you have taken to correct the problem and the results you
got.
4. Write down the serial and model numbers of the system unit and any
connected peripheral devices. These numbers are usually printed on a
label on the back of the device.

1–14 Troubleshooting and Diagnosing Problems

Figure 1–1 Status LED Display

3
2

MLO-010213

Status LED Display
Break Enable LED

Troubleshooting and Diagnosing Problems 1–15

Table 1–2 Status LED Display and Break Enable Meanings
LED Number

Color

Meaning

LED 0, 1, 2, 3

Green

Binary readout indicating certain system
tests and functions.

LED 4

Green

Reset indicator; when extinguished,
indicates that the reset is active.

LED 5, 6

—

Not used

LED 7

Amber

Clock protection indicator

Break Enable
LED

Green

When the break/enable switch is in the up
position, the LED is on and you can halt
the system by pressing the break key on
the console terminal keyboard. When the
break/enable switch is in the down position
the LED is off and the system cannot be
halted from the console terminal keyboard.

1–16 Troubleshooting and Diagnosing Problems

2
Running the Diagnostic Monitor
The MicroVAX Diagnostic Monitor (MDM) is an optional software package
containing diagnostic tests that isolate and identify faults in your system.
MDM also lets you display your system configuration and test how devices
work together.
MDM is on tape, in a cartridge labeled MV DIAG CUST TK50. MDM
operating instructions begin in Section 2.2.
CAUTION
If your system is connected to a cluster, notify your cluster manager
before halting the system to load MDM.

You generally run MDM in four situations:
•

Before you install software on a new system

•

After you add a device to your system

•

After you receive an error message or experience a system problem

•

When you want to test your system periodically to ensure that all
components are operating correctly

Running the Diagnostic Monitor 2–1

2.1 MDM Limitations
MDM tests internal devices in your system, but it performs limited diagnostics.
•

MDM reads from each drive and checks each controller, but it does not
write to the drives because that could destroy data.
Note
MDM tests a tape or diskette drive only after the medium (tape or
diskette) is inserted into the drive.

•

MDM checks devices on the system as well as the system and
interconnects.

•

MDM checks terminal interfaces (but not terminals) by means of feedback
connectors.

If your devices pass the tests but you still experience problems, call your
Digital service representative for further testing.
If you require more complete diagnostic testing, purchase the MicroVAX
Maintenance Kit. That kit includes a system maintenance guide and the
service diagnostic tests. The MDM version you receive with your system is a
subset of the service version.
CAUTION
Only qualified service personnel should use the service diagnostic tests.

2.2 Preparing to Run MDM
Running MDM on some systems requires additional or special procedures:
Read Section 2.2.1 if you plan to run MDM on a diskless or tapeless
system.
Read Section 2.2.2 if you plan to install MDM on a hard disk or RF-series
Integrated Storage Element.
Read Section 2.2.3 if you plan to run MDM on a DSSI VAXcluster.
You can run MDM on an RRD-series disc drive by using the MDM CD–ROM
Kit.

2–2 Running the Diagnostic Monitor

2.2.1 Preparing to Run MDM on a Diskless or Tapeless System
To run MDM on a diskless or tapeless system that is part of a local area
network, you must:
•

Obtain a MicroVAX Ethernet Server Customer Diagnostics Kit.

•

Run MDM using the diagnostics in that kit, labeled MV DIAG ENET
CUST.

Refer to the MicroVAX Diagnostic Monitor Ethernet Server User’s Guide at this
time. After you install and downline load MDM, refer again to that manual for
instructions on running MDM.
Note
If you have a diskless or tapeless system that is not part of a local area
network, you cannot run MDM. To diagnose problems, call your Digital
service representative.

2.2.2 Preparing to Run MDM on an RF-Series Integrated Storage
Element (ISE) or Hard Disk
You can install MDM on an RF-series ISE or hard-disk drive by using the
MDM Hard Disk Kit. Installation of that kit requires your completion of
the Diagnostic Software Installation Acknowledgment. See the MicroVAX
Diagnostic Monitor Hard Disk User’s Guide for licensing requirements and
installation instructions.

2.2.3 Preparing to Run MDM on a DSSI VAXcluster
Note
The MDM Hard Disk Kit is required for a two-system DSSI VAXcluster
where one host is a tapeless system, and the other uses the TKxx tape
drive.
TF-series tape drives are DSSI devices and can be shared between
systems in a DSSI VAXcluster. Both systems in a two-system DSSI
VAXcluster can boot MDM from the same drive, However you must run
MDM separately from each host.

Running the Diagnostic Monitor 2–3

Before running MDM:
•

Your system must be properly configured.

•

The Digital Storage Systems Interconnect (DSSI) cable connecting the
multiple hosts must be installed.

You must run MDM separately for each host. For TKxx based systems, the
procedure to use depends on whether one host is a tapeless system (no tape
drive) or each host has its own tape drive.
Use the procedure in Section 2.2.3.1 to prepare to run MDM in a DSSI
VAXcluster with one TKxx tape drive.
Use the procedure in Section 2.2.3.2 to prepare to run MDM in a DSSI
VAXcluster with a TKxx tape drive in each host.
2.2.3.1 MDM on a DSSI VAXcluster with One TKxx Tape Drive
To run MDM on a DSSI VAXcluster with one TKxx tape drive (one or more
tapeless hosts):
•

Use the MDM Hard Disk Kit.

•

Complete the Diagnostic Software Installation Acknowledgment.

•

Install the kit on a hard disk or an RF-series ISE as described in the
MicroVAX Diagnostic Monitor Hard Disk User’s Guide.

After the installation is complete, use the following procedure to run MDM.
1. If software is installed on your system:
a. Warn all users to log off.
b. Perform system shutdown as described in your software manuals.
2. Set the Break Enable/Disable switch on the host to be tested to enable (up).
3. Insert a blank tape cartridge into the tape drive and lock it in place.
4. Restart the host to be tested.
5. Enter one of these commands, where u is the unit number of the disk
containing the Hard Disk Kit and c is the controller port letter.
BOOT/100 DIAu (CPU-based DSSI)
BOOT/100 DUcu (KFQSA adapter or KDA50 controller)
The system prompts for the boot file name by displaying Bootfile:
6. Enter one of these file names.
[SYS0.SYSEXE]MDMSHA.SYS (CPU-based DSSI)

2–4 Running the Diagnostic Monitor

[SYS0.SYSEXE]MDM.SYS (KFQSA adapter or KDA50 controller)
Then press Return to continue booting.
7. Run MDM as described in Section 2.3.
8. After you complete the tests on the first host:
a. Make sure the Break Enable/Disable switch is set to enable (up) and
press the Restart button on that host.
b. After the countdown completes and the >>> prompt displays, boot
MDM from the second system using the procedure described in steps 2
through 6.
c.

Run MDM as you did for the first system.

2.2.3.2 MDM on a DSSI VAXcluster with Two TKxx Tape Drives
To run MDM on a DSSI VAXcluster with two tape drives in each system:
Note
You can also use the MDM Hard Disk Kit as described in the previous
section.

1. If software is installed on your system:
a. Warn all users to log off.
b. Perform system shutdown as described in your software manuals.
2. Set the Break Enable/Disable switch on the host to be tested to enable (up).
3. Make sure the Write Protect switch on the tape cartridge containing the
MDM diagnostic software is in the Write Protect Position.
4. Insert the tape cartridge containing MDM into the tape drive and lock it in
place.
5. Restart (turn on) both hosts.
6. After the self-test countdown completes and the >>> prompt displays, enter
the command BOOT MUcu, where c is the controller designator and u is
the drive unit number, to boot the tape.
7. Run MDM as described in Section 2.3.
8. After you complete the tests on the first host:
a. Remove the tape cartridge, by following the procedure described in your
Operation manual, and press the Restart button on that host.
Running the Diagnostic Monitor 2–5

b. After the self-test countdown completes and the >>> prompt displays,
insert the tape cartridge into the tape drive in the second system and
lock it in place.
c.

Enter the command BOOT MUcu, where c is the controller designator
and u is the drive unit number, to boot the tape.

d. Run MDM as you did for the first system.

2.3 Starting MDM
You must start MDM differently for different media:
If you are booting MDM from a tape drive, read Section 2.3.1.
If you are booting MDM from an RRD-series disc drive, read Section 2.3.2.
If you are booting MDM from a hard disk or an RF-series ISE, refer to the
MicroVAX Diagnostic Monitor Hard Disk User’s Guide.
CAUTION
Unless instructed to do so, do not change any settings or manipulate
devices while the tests are running. MDM interprets any change of
state as an error.

2.3.1 Tape Drive Instructions
Before you run MDM, be sure you understand the instructions in your
Operator Information manual for using the tape drive.
MDM runs the same way whether or not system software is loaded.
•

You can boot MDM manually from a TF-series, TK50 or TK70 tape drive
(Section 2.3.1.1).

•

You can use the autoboot feature to boot MDM only from a TK50 or TK70
tape drive (Section 2.3.1.2).
Note
If your system is part of a local area network (LAN), you can reduce
the time required to load MDM by obtaining the MicroVAX Ethernet
Server Customer Diagnostics Kit. That kit lets you install MDM on a
host system and downline load MDM to other systems that are part of
the LAN, using the DECnet/Ethernet network facilities.

2–6 Running the Diagnostic Monitor

2.3.1.1 Booting MDM Manually
Use this procedure to boot MDM from a TF-series, TK50 or TK70 tape drive.
1. If software is installed on your system:
a. Warn all users to log off.
b. Perform system shutdown as described in your software manuals.
2. Make sure the write protect switch on the tape cartridge is in the writeprotect position.
3. If your system contains software, write-protect all disk drives and RF-series
ISEs.
4. Move the Break Enable/Disable switch to enable (up).
5. Restart the system.
6. After the green light on the tape drive glows steadily (orange and yellow
lights go out), insert the tape cartridge containing MDM into the tape drive
and lock it in place.
7. Tell your system to load MDM from the tape cartridge:
For a TK50 or TK70 tape drive, enter the command BOOT MUcu,
where c is the controller designator and u is the drive unit number.
For a TF-series tape drive, enter the command BOOT MImc, where m
is the DSSI bus adapter and c is the drive unit number.
Loading MDM takes several minutes. A green light on a TK50 drive or
a yellow light on a TK70 or TF-series drive blinks while loading occurs.
Section 2.4 describes the display you see after loading completes.
8. After loading completes, make sure all RF-series ISEs are on line.
2.3.1.2 Booting MDM Automatically
Use this procedure to boot MDM from a TK50 or TK70 tape drive. Do not use
this procedure for a TF-series tape drive.
1. If software is installed on your system:
a. Warn all users to log off.
b. Perform system shutdown as described in your software manuals.
2. Enter the command SET BOOT MUcu, where c is the controller designator
and u is the drive unit number.
3. Make sure the write protect switch on the tape cartridge is in the writeprotect position.

Running the Diagnostic Monitor 2–7

4. Remove any removable disks, and place all fixed-disk drives and RF-series
ISEs off line.
5. Write-protect all disk drives and RF-series ISEs.
6. Turn off your system.
7. Set the Break Enable/Disable switch to disable (down).
8. Turn on your system.
9. After the green light on the tape drive glows steadily, insert the tape
cartridge containing MDM into the drive and lock it in place.
Loading MDM takes several minutes. A green light on a TK50 drive or
a yellow light on a TK70 drive blinks while loading occurs. Section 2.4
describes the display you see after loading completes.
10. After loading completes, make sure all RF-series ISEs are on line.

2.3.2 RRD-Series Compact Disc Instructions
If you are using an RRD-series disc drive connected to the internal SCSI
controller, use the following procedure to boot MDM.
1. If software is installed on your system:
a. Warn all users to log off.
b. Perform system shutdown as described in your software manuals.
2. Turn off your system.
3. Set the Break Enable/Disable switch to enable (up).
4. Turn on your system and await the completion of the power-up sequence.
5. Press the Halt button to put the system in console mode.
6. Insert the disc caddy into the RRD series disk drive:
a. Remove the disc from its package.
b. Insert the disc into the caddy (See MDM CD–ROM booklet.).
c.

Insert the caddy into the drive slot:
For an RRD40 drive, push the caddy in until it stops. Then
withdraw the caddy. The disc remains in the drive.
For another RRD-series drive, the caddy stays in the drive. Do not
remove it.

2–8 Running the Diagnostic Monitor

7. Tell your system to load MDM from the disc:
For an internal adapter, enter the command BOOT DKxnnn, where x
is the adapter designator and nnn is the drive unit number.
For a KRQ50 controller, enter the command BOOT/100 DUcu, where c
is the controller designator and u is the drive unit number. Then, when
your system displays Bootfile:, enter [SYS0.SYSEXE]MDMCD.SYS
(the boot file name).
Loading MDM takes several minutes. Section 2.4 describes the display you
see after loading completes.
8. After loading completes, place all hard disks and RF-series ISEs on line.

2.4 MDM Introductory Display
After MDM is loaded, the introductory display appears. Make sure the date
and time in that display are correct.
•

If the date and time are correct, press Return to continue.

•

If the date and time are not correct, type the correct date and time using
the format shown in the display. For example, enter 10–SEP–1992 02:30
and press Return to continue.

The Main Menu appears. Section 2.5 describes the options on that menu.

Running the Diagnostic Monitor 2–9

2.5 Main Menu Options
The Main Menu provides six options as shown below.
MAIN MENU

Release nnn

Version xx.xx

1 - Test the System
2 - Display System Configuration and Devices
3 - Display the System Utilities Menu
4 - Display the Service Menu
5 - Display the Connect/Ignore Menu
6 - Select Single Device Tests
Type the number; then press the RETURN key.
Note
The MDM release and version numbers are represented by nnn and
xx.xx respectively in the displays provided throughout this chapter.

Select an option by typing its number and Return .
The next six sections describe the options on the Main Menu.

2.5.1 Test the System Option
The Test the System option tests the devices it sees in your system and how
they work together. You can select this option at any time without jeopardizing
data.
After you select this option, the diagnostics are prepared for testing. If this
is the first option you selected, the diagnostics are loaded and configured.
Loading and configuring takes several minutes. After configuring is complete,
you are prompted to press Return .
After you press Return , an explanation of the testing procedures appears.
When you are ready to begin the test, press Return . Your system displays Begin
Device Tests.
As each device passes the test, it is listed on your terminal screen.

2–10 Running the Diagnostic Monitor

Note
Because of the similarity of some communication options, MDM sees
them as the same device. A CXA16 and CXB16 appear the same to
MDM. A generic device name, DH–CX0, is listed for such options,
and the last letter in each name shows the difference. For example,
DH–CX0A indicates one option, DH–CX0B a second, and so forth.

If a device fails the test, you receive a failure message which identifies:
•

The device tested

•

When the failure occurred

•

The field-replaceable unit (FRU)

Copy the failure message and report it to your Digital service representative.
This shows an example of an unsuccessful test.
BEGIN FUNCTIONAL TEST
Device

Result

SGCA ................. FAILURE DETECTED
A failure was detected while testing the
OPTION: SGCA Ethernet controller
The Field Replaceable Unit (FRU) identified is the:
Ethernet controller
If your system has serious problems, the following message appears.
All devices disabled, no tests run.
Report that message to your Digital service representative.
After a failure message appears, the testing stops.
After all devices pass the first part of the test, the exerciser tests begin. Those
tests take about 4 minutes and test how the devices work together. If the
devices pass, you receive a success message.
At the end of the tests, press Return to return to the Main Menu.
From the Main Menu you can exit MDM as described in Section 2.6 or you can
select one of the other options.

Running the Diagnostic Monitor 2–11

2.5.2 Display System Configuration and Devices Option
The Display System Configuration and Devices option identifies devices
recognized by MDM.
After you select this option, the diagnostics are prepared for testing. If this
is the first option you selected, the diagnostics are loaded and configured.
Loading and configuring takes several minutes. After configuring is complete,
you are prompted to press Return .
After you press Return , the configuration is displayed. See Example 2–1
Example 2–1 Typical Configuration
MAIN MENU

Release nnn

Version xx.xx

SYSTEM CONFIGURATION AND DEVICES
CPUA ... VAX 4000 CPU
KA52 MC=01 FW=3.9
MEMA ... VAX 4000 memory system
64 Megabytes. 131072 Pages.
MS44-DC ... 64MB memory module
MS44-DC ... 64MB memory module
PDIA ... SHAC DSSI Subsystem
SHAC Ver. 3.6
RF73 ... Unit #0, Dssi Disk, Online
TF85 ... Unit #1, Dssi Tape, Online
RF73 ... Unit #11, Dssi Disk, Online
SGCA ... Second Generation Ethernet Controller
SGEC V4 08-00-2B-19-60-66
PDIB ... SHAC DSSI Subsystem
SHAC Ver. 3.6
Press the Return key to return to the previous menu.
Up to two lines of information are provided for each device:
•

One line lists the name of the device and gives a brief description.

•

A second line may indicate the revision level of the device.

The revision level can refer to hardware or microcode. For example, the KA5n
(n can = 2 or 3) CPU described above is at revision 3.9 for microcode (MC=01).

2–12 Running the Diagnostic Monitor

Besides the general information listed for each device, more information for
specific devices may be given. Some examples:
•

CPUA — Type of CPU and the presence of a floating-point unit

•

MEMA — Total amount of memory in megabytes and pages, and number
and type of memory modules

•

KFQSA — Type of DSSI device and its unit number for each ISE

•

KDA50 — Unit number, drive type, and controller revision number

•

PDIA — DSSI adapter, for Bus 0 embedded in KA5n CPU

•

DESQA — Ethernet station address

•

SGCA — On-board Ethernet controller embedded in KA5n CPU

•

PDIB — DSSI adapter for Bus 1, embedded in KA5n CPU

•

Communication devices — Type of device and whether it has modem
control

In addition to showing information about testable device options, MDM
displays messages indicating the presence of nontestable system devices. If
a device is in your system but is not listed in the System Configuration and
Devices display, one of the following two messages can indicate the reason.

No Dg xxx ... Diagnostic not loaded
MDM displays a No Dg (no diagnostic) message for each nontestable Digital
device in your system, where xxx indicates the device. For example, if MDM
cannot find the TK70 tape drive diagnostic, the message No Dg TKA is displayed.
TKA indicates that the device is a TK tape drive. Such a message can appear
when:
•

The medium is not installed properly.

•

The diagnostic is not on the medium.

Unknown ... Diagnostic not loaded
The Unknown (unknown device) message indicates that a device not recognized
by MDM is attached to your system. That message appears when:
•

A device is configured to a nonstandard CSR address.

•

A Digital device that has no diagnostic is attached to your system. That
can occur if a device not supported on your system is attached.

Running the Diagnostic Monitor 2–13

•

A non-Digital device is attached to your system.

After all devices are listed, you can return to the Main Menu by pressing
Return .
From the Main Menu you can exit MDM as described in Section 2.6 or you can
select one of the other options.

2.5.3 Display the System Utilities Menu Option
The Display the System Utilities Menu option displays the System Utilities
Menu. If system utilities in addition to the IOADDRES function are available
on your system, they are listed on that menu.
After you select this option, the diagnostics are prepared for testing. If this is
th first option you selected, the diagnostics are loaded and configured. Loading
and configuring takes several minutes. After configuring is complete, you are
prompted to press Return .
After you press Return , the System Utilities Menu appears:
MAIN MENU
SYSTEM UTILITIES
Utility selections are:
1 - IOADDRES
2 - RRAA - Update drive unit number for RRD40 controller A.
3 - RRAB - Update drive unit number for RRD40 controller B.
Note
If your system does not have an RRD-series drive connected to a
KRQ50 controller, only one function, IOADDRES, is available.

Select a function by typing its number and pressing Return .

2–14 Running the Diagnostic Monitor

2.5.3.1 IOADDRES Function
Note
The IOADDRES function is for users of Industrial VAX systems. It is
described in the Industrial VAX troubleshooting manual.

The IOADDRES function gives you a list of standard CSR addresses and
interrupt vectors that MDM uses in testing devices. It also gives you the first
available CSR and interrupt vector for configuring devices with a nonstandard
address. IOADDRES does not look at devices on the bus; it lists devices
supported by Digital Customer Services.
The devices in your system were configured at the factory. Any new devices
added to your system should be configured by a Digital service representative.
2.5.3.2 Update Drive Unit Number for RRD-Series Function
The Update Drive Unit Number function lets you update the unit number
for an RRD-series disc drive connected to a KRQ50 controller. Refer to the
appropriate RRD-series disc drive owner’s manual for instructions.

2.5.4 Display the Service Menu Option
The Display the Service Menu option is available only if you purchased the
MicroVAX Maintenance Kit. That kit contains service diagnostics and the
system maintenance guide.
CAUTION
Only qualified service personnel should use the MicroVAX Maintenance
Kit.

Running the Diagnostic Monitor 2–15

2.5.5 Display the Connect/Ignore Menu Option
Note
The Connect/Ignore Menu is for users of Industrial VAX systems. Its
options are described in the Industrial VAX troubleshooting manual.

The Display the Connect/Ignore Menu option lets you customize MDM
diagnostics. You can load your own diagnostics as well as MDM diagnostics on
a device with a nonstandard CSR address and interrupt vector.
See the Industrial VAX Troubleshooting manual for more information. Use this
option with caution.

2.5.6 Select Single Device Tests Option
The Select Single Device Tests option lets you run tests for a single device.
•

A functional test is performed on the device circuits.

•

An exerciser test ensures that the device works properly.

After you select this option, the diagnostics are prepared for testing.If this
is the first option you selected, the diagnostics are loaded and configured.
Loading and configuring takes several minutes. After configuring is complete,
you are prompted to press Return .
After you press Return , a list of the devices in your system is displayed:

MAIN MENU
SELECT SINGLE DEVICE TEST

Release nnn

Version xx.xx

Select the device number to be tested. The functional tests
will be run followed by the exercisers for 4 minutes.
1 - CPUA - VAX 4000 CPU
2 - MEMA - VAX 4000 memory system
3 - PDIA - SHAC DSSI Subsystem
4 - SGCA - Second Generation Ethernet Controller
5 - PDIB Shac DSSI subsystem.
Type the number; then press the RETURN key,
or type 0 and press the RETURN key to return to the Main Menu. >

2–16 Running the Diagnostic Monitor

Select a device for testing by typing its number and Return .
After you press Return , your system configures the device diagnostics and
testing begins. If the device passes the functional test, a message to that
effect appears and the exerciser test begins. The exerciser test runs for
approximately 4 minutes.
This shows an example of a successful test.
BEGIN FUNCTIONAL TEST
Device

Result

CPUA ...................

PASSED

BEGIN EXERCISER TEST
Results are reported at the end of the testing.
SINGLE DEVICE TEST PASSED
If a device fails the test, you receive a failure message which identifies:
•

The device tested

•

When the failure occurred

•

The field-replaceable unit (FRU)

Copy the failure message and report it to your Digital service representative.
This shows an example of an unsuccessful test.
BEGIN FUNCTIONAL TEST
Device

Result

SGCA .................

FAILURE DETECTED

A failure was detected while testing the
OPTION: SGCA Ethernet controller
The Field Replaceable Unit (FRU) identified is the:
Ethernet controller

Running the Diagnostic Monitor 2–17

After a failure message appears, the testing stops.
Press Return to return to the Select Single Device Test menu for more testing.
To exit MDM, press Break or the Restart button. For more information, see
Section 2.6.

2.6 Exiting MDM
Exit MDM in one of the following ways:
•

Press Break .

•

Press and then release the Halt button.

Remove the tape cartridge as described in your Operator Information manual.
If you ran MDM on a new system, you are ready to install your software. Set
the write protect button to write-enable and then follow the instructions in
your software manuals.
If you ran MDM on a system containing software, you must reboot that
software.
You can reboot your system software in one of two ways:
•

At the console mode prompt (>>>), use the command BOOT Dxxx, where
Dxxx is the device name of the fixed disk or RF-series ISE containing your
system software.
Use DUxx for an RA-series disk drive, or an RF-series ISE with a
KFQSA adapter.
Use DIxx for an RF-series ISE with a CPU-based DSSI.
After your system software is loaded, set the Break Enable/Disable switch
to disable (down) to avoid halting the system by pressing Break .

•

Set the Break Enable/Disable switch to disable (down) and press the
Restart button. That begins the self-test sequence and loads system
software.

2–18 Running the Diagnostic Monitor

Index
B
Booting MicroVAX Diagnostic Monitor
See MicroVAX Diagnostic Monitor,
starting

C
Cables
checking connections, 1–10
checking the console terminal cable, 1–1
checking the Ethernet cables, 1–2
checking the expansion box power cords,
1–2
checking the expansion box SCSI cables,
1–1
checking the system unit power cord, 1–1
checking the terminal power cord, 1–1
troubleshooting, 1–1
Caddy, disc
See RRD-series disc
CD–ROM
See RRD-series disc
CD–ROM Kit, MicroVAX Diagnostic Monitor,
2–2
Compact disc
See RRD-series disc
Connect/Ignore option, MicroVAX Diagnostic
Monitor Main Menu, 2–16
Connections
checking SCSI terminator, 1–2
checking standard Ethernet loopback
connector, 1–2

Connections (cont’d)
checking ThinWire Ethernet terminator,
1–2
Console security feature, 1–8
Console terminal
checking cable, 1–1
checking power cord, 1–1
turning off, 1–1
turning on, 1–2

D
Diagnostic commands, 1–8
Diagnostic monitor
See MicroVAX Diagnostic Monitor
Diagnostic tests, 1–8
Digital Services
contacting, 1–14
Disc caddy
See RRD-series disc
Disc, compact
See RRD-series disc
Diskless or tapeless system
See System, diskless or tapeless
Display System Configuration and Devices
option, MicroVAX Diagnostic Monitor
Main Menu, 2–12
Display the Connect/Ignore Menu option,
MicroVAX Diagnostic Monitor Main
Menu, 2–16
Display the Service Menu option, MicroVAX
Diagnostic Monitor Main Menu, 2–15

Index–1

Display the System Utilities Menu option,
MicroVAX Diagnostic Monitor Main
Menu, 2–14
DSSI terminator, 1–2
DSSI VAXcluster system, preparing to run
MicroVAX Diagnostic Monitor, 2–3
DSSI VAXcluster, preparing to run MicroVAX
Diagnostic Monitor
one TKxx tape drive, 2–4
two tape drives, 2–5

E
EF/RF-Series
controller error, 1–5
duplicate node id, 1–5
fault indicator, 1–4
integrated storage element, 1–4
read error, 1–5
troubleshooting, 1–4
write error, 1–4
Error messages
All devices disabled, 2–11
No Dg, 2–13
Unknown, 2–13
Ethernet
checking cable, 1–2
Exiting MicroVAX Diagnostic Monitor, 2–18
Expansion boxes
checking power cord, 1–2
checking SCSI cables, 1–1
turning off, 1–1
turning on, 1–2

F
Fan
troubleshooting, 1–3
Field Services
See Digital Services

Index–2

H
Hard Disk Kit, MicroVAX Diagnostic
Monitor, 2–3
Hard disk, preparing to run MicroVAX
Diagnostic Monitor, 2–3

I
Introductory display, MicroVAX Diagnostic
Monitor, 2–9
IOADDRES function, MicroVAX Diagnostic
Monitor System Utilities Menu, 2–15

K
KA52-A, 1–8
KZQSA adapter, booting MicroVAX
Diagnostic Monitor, 2–8

L
Leaving MicroVAX Diagnostic Monitor, 2–18
Limitations, MicroVAX Diagnostic Monitor,
2–2
Loopbacks
checking, 1–1
standard Ethernet, 1–1

M
Main Menu options, MicroVAX Diagnostic
Monitor, 2–10
MDM
See MicroVAX Diagnostic Monitor
Messages
See Error messages
MicroVAX Diagnostic Monitor
booting
disc drive, 2–8
KZQSA adapter, 2–8
RRD-series disc drive, 2–8
CD–ROM Kit, 2–2
disc caddy, preparing, 2–8

MicroVAX Diagnostic Monitor (cont’d)
Display System Configuration and Devices
option, Main Menu, 2–12
Display the Connect/Ignore Menu option,
Main Menu, 2–16
Display the Service Menu option, Main
Menu, 2–15
Display the System Utilities Menu option,
Main Menu, 2–14
exiting, 2–18
Hard Disk Kit, 2–3
introductory display, 2–9
IOADDRES function, System Utilities
Menu, 2–15
leaving, 2–18
limitations, 2–2
Main Menu options, 2–10
medium, 2–1
preparing RRD-series disc caddy, 2–8
preparing to run, 2–2
preparing to run, diskless or tapeless
system, 2–3
preparing to run, DSSI VAXcluster, 2–3
preparing to run, DSSI VAXcluster, one
TKxx tape drive, 2–4
preparing to run, DSSI VAXcluster, two
tape drives, 2–5
preparing to run, hard disk, 2–3
preparing to run, RF-series integrated
storage element or hard disk, 2–3
preparing to run, RRD-series disc, 2–2
preparing to run, tapeless system, 2–3
RRD-series disc caddy, preparing, 2–8
running, 2–1
Select Single Device Tests option, Main
Menu, 2–16
starting, 2–6
starting, booting TK50/TK70 tape, 2–6
starting, booting TK70 tape automatically,
2–7
starting, booting TK70 tape manually,
2–7
starting, RRD-series disc, 2–8
Test the System option, Main Menu, 2–10

MicroVAX Diagnostic Monitor (cont’d)
Update Drive Unit Number for RRD40
function, System Utilities Menu,
2–15
when to run, 2–1
MicroVAX Ethernet Server Customer
Diagnostics Kit, 2–3
Monitor
See MicroVAX Diagnostic Monitor

O
Operating system software
troubleshooting, 1–3

P
Peripherals
turning off, 1–1
turning on, 1–2
Power cord
troubleshooting, 1–3
Power-up display
troubleshooting, 1–3
Power-up tests
successful display, 1–8
unsuccessful display, 1–9
use of, 1–8
Preparing disc caddy, RRD-series disc, 2–8
Preparing to run MicroVAX Diagnostic
Monitor
See MicroVAX Diagnostic Monitor,
preparing to run
Privileged console mode, 1–8

Q
Question marks
two (??), 1–10

Index–3

R
Rebooting system after running MicroVAX
Diagnostic Monitor, 2–18
RF-series integrated storage element
preparing to run MicroVAX Diagnostic
Monitor, 2–3
ROM
See RRD-series disc
RRD-series disc
booting MicroVAX Diagnostic Monitor
from KZQSA adapter, 2–8
preparing disc caddy, 2–8
preparing to run MicroVAX Diagnostic
Monitor, 2–2
starting MicroVAX Diagnostic Monitor,
2–8
RRD42
caddy fault, 1–5
compact disc drive, 1–5
eject button fault, 1–5
troubleshooting, 1–5
RRD42 compact disc drive
troubleshooting, 1–5
Running MicroVAX Diagnostic Monitor, 2–1

S
SCSI terminator, 1–2
Security password, 1–8
Select Single Device Tests option, MicroVAX
Diagnostic Monitor Main Menu, 2–16
Self-tests, 1–10
running, 1–11
Standard Ethernet, 1–2
Starting MicroVAX Diagnostic Monitor
See MicroVAX Diagnostic Monitor,
starting
Status LED display, 1–15
location, 1–15
System
diskless or tapeless, preparing to run
MicroVAX Diagnostic Monitor, 2–3

Index–4

System (cont’d)
DSSI VAXcluster, preparing to run
MicroVAX Diagnostic Monitor, 2–3
DSSI VAXcluster, preparing to run
MicroVAX Diagnostic Monitor, one
TKxx tape drive, 2–4
DSSI VAXcluster, preparing to run
MicroVAX Diagnostic Monitor, two
tape drives, 2–5
tapeless, preparing to run MicroVAX
Diagnostic Monitor, 2–3
System unit
checking power cord, 1–1
troubleshooting, 1–3
turning off, 1–1
turning on, 1–2

T
Tapeless system
See System, tapeless
Terminal
troubleshooting, 1–3
Terminators
checking, 1–1
checking connections, 1–2, 1–10
SCSI, 1–2
ThinWire Ethernet, 1–1
Test the System option, MicroVAX Diagnostic
Monitor Main Menu, 2–10
ThinWire Ethernet, 1–2
TK50/TK70 tape, starting MicroVAX
Diagnostic Monitor, 2–6
TLZ06
QIC tape drive, 1–6
troubleshooting, 1–6
Troubleshooting, 1–1 to 1–7
EF/RF-Series, 1–4
MicroVAX Diagnostic Monitor, 2–1
RRD42, 1–5
system unit, 1–3
table, 1–2
terminal, 1–3
TLZ06, 1–6
TZ30, 1–5

Troubleshooting (cont’d)
TZK10, 1–7
TZ30
green LED, 1–5
head cleaning, 1–6
operate lever faults, 1–6
tape drive, 1–5
troubleshooting, 1–5
unload button, 1–6
write-protect error, 1–6
TZK10
amber LED, 1–7
head cleaning, 1–7
QIC tape drive, 1–7
troubleshooting, 1–7
write-protect error, 1–7

U
Update Drive Unit Number for RRD40
function, MicroVAX Diagnostic Monitor
System Utilities Menu, 2–15
Utilities menu
See MicroVAX Diagnostic Monitor, Display
the System Utilities Menu option

W
Write-protect switch
TZ30, 1–6
TZK10, 1–7

Index–5

Reader’s Comments

VAX 4000 Model 100A
Troubleshooting and Diagnostics Information
EK–505AA–TS. A01

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