Digital Equipment VAX 10000 Setup guide

digital equipment corporation
maynard, massachusetts
VAX 10000
Advanced Troubleshooting
Order Number EK–1001A–TS.001
This manual is intended for Digital customer service engineers and self-
maintenance customers. It covers system troubleshooting information.

First Printing, February 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, if any, described in this document is furnished under a license and
may be used or copied only in accordance with the terms of such license. No re-
sponsibility is assumed for the use or reliability of software or equipment that is
not supplied by Digital Equipment Corporation or its affiliated companies.
Copyright © 1993 by Digital Equipment Corporation.
All Rights Reserved.
Printed in U.S.A.
The following are trademarks of Digital Equipment Corporation:
Alpha AXP DECUS VAXBI
AXP DWMVA VAXELN
DEC OpenVMS VMScluster
DECchip ULTRIX XMI
DEC LANcontroller UNIBUS The AXP logo
DECnet VAX
d
T
OSF/1 is a registered trademark of the Open Software Foundation, Inc.
FCC NOTICE: The equipment described in this manual generates, uses, and may
emit radio frequency energy. The equipment has been type tested and found to
comply with the limits for a Class A computing device pursuant to Subpart J of
Part 15 of FCC Rules, which are designed to provide reasonable protection against
such radio frequency interference when operated in a commercial environment.
Operation of this equipment in a residential area may cause interference, in which
case the user at his own expense may be required to take measures to correct the
interference.

iii
Contents
Preface ..................................................................................................... vii
Chapter 1 Troubleshooting During Power-Up
1.1 Power System Overview ........................................................ 1-2
1.2 Power-Up Troubleshooting Flowchart .................................. 1-4
1.3 AC Input Box.......................................................................... 1-6
1.4 H7263 Power Regulators ....................................................... 1-8
1.5 Cabinet Control Logic Module............................................. 1-10
1.6 Control Panel........................................................................ 1-12
1.7 Blower................................................................................... 1-14
1.8 XMI Plug-In Unit ................................................................. 1-16
1.9 Troubleshooting the XMI Plug-In Unit............................... 1-18
Chapter 2 System Self-Test
2.1 System Self-Test Overview.................................................... 2-2
2.2 Power-Up Sequence ............................................................... 2-4
2.3 System Self-Test Results ..................................................... 2-10
2.4 Checking Self-Test Results: Console Display ..................... 2-12
2.4.1 Processor Fails Self-Test in a Uniprocessor System.... 2-14
2.4.2 Processor Fails ST1 in a Multiprocessor System......... 2-16
2.4.3 Processor Fails ST2 or ST3 in a Multiprocessor
System............................................................................ 2-18
2.4.4 Memory Fails Self-Test ................................................. 2-20
2.4.5 System Fails Power-Up Exerciser ................................ 2-22
2.5 Checking Self-Test Results: Status LEDs ......................... 2-24
2.5.1 Processor LEDs.............................................................. 2-26
2.5.2 Determining Failing Test Number from LEDs............ 2-28
2.5.3 IOP, DWLMA, and Clock Card LEDs .......................... 2-30

iv
Chapter 3 Diagnostics
3.1 Test Command ....................................................................... 3-2
3.2 Running ROM-Based Diagnostics on XMI Devices.............. 3-4
3.3 Running Diagnostics on DUP-Based Devices....................... 3-8
3.3.1 Testing an SI Device........................................................ 3-8
3.3.2 Testing a DSSI Device................................................... 3-12
Appendix A Parse Trees
A.1 Reading Parse Trees ..............................................................A-2
Appendix B Power System Troubleshooting
B.1 Getting Information on Power Regulator Status .................B-2
B.1.1 Brief Data Packet ............................................................B-3
B.1.2 Full Data Packet..............................................................B-5
B.2 Show Power Command ........................................................B-11
B.3 Checking the IOP Module During Power-Up .....................B-11
B.4 Identifying an LSB Module Power Converter Failure.......B-13
Examples
2-1 Self-Test Display .................................................................. 2-12
2-2 Console Display: Processor Fails in Uniprocessor System 2-14
2-3 Console Display: Processor Fails ST1 in Multiprocessor
System .................................................................................. 2-16
2-4 Console Display: Processor Fails ST2 or ST3 in a
Multiprocessor System......................................................... 2-18
2-5 Console Display: Memory Fails Self-Test .......................... 2-20
2-6 Console Display: Sample Unexpected
Exception/Interrupt ............................................................. 2-22
2-7 Console Display: Sample Diagnostic Error Report ............ 2-23
3-1 Test Commands...................................................................... 3-2
3-2 Sample RBD Session, Test Passing ...................................... 3-4
3-3 Sample RBD Session, Test Failing ....................................... 3-6
3-4 Testing an SI Device .............................................................. 3-8
3-5 Testing a DSSI Device ......................................................... 3-12
A-1 Sample Machine Check, MCHK Code 06 .............................A-2
B-1 Sample Output, Show Power Command.............................B-11

v
Figures
1-1 Power System ......................................................................... 1-2
1-2 Power-Up Sequence ............................................................... 1-4
1-3 AC Input Box.......................................................................... 1-6
1-4 AC Input Box Troubleshooting Steps.................................... 1-7
1-5 H7263 Power Regulator LEDs .............................................. 1-8
1-6 H7263 Power Regulator Troubleshooting Steps................... 1-9
1-7 CCL Module LEDs ............................................................... 1-10
1-8 CCL Module Troubleshooting Steps ................................... 1-11
1-9 Control Panel........................................................................ 1-12
1-10 Control Panel Troubleshooting Steps ................................. 1-13
1-11 Blower ................................................................................... 1-14
1-12 Blower Troubleshooting Steps............................................. 1-15
1-13 XMI Plug-In Unit LEDs....................................................... 1-16
1-14 XMI PIU Troubleshooting Steps - 48V LED Off ................ 1-18
1-15 XMI PIU Power Connector .................................................. 1-19
1-16 XMI PIU Troubleshooting Steps - MOD OK LED Off ....... 1-20
2-1 KA7AA Power-Up Sequence, Part 1 of 3 .............................. 2-4
2-2 KA7AA Power-Up Sequence, Part 2 of 3 .............................. 2-6
2-3 KA7AA Power-Up Sequence, Part 3 of 3 .............................. 2-8
2-4 Determining Self-Test Results ............................................ 2-10
2-5 Processor and Memory Status LEDs .................................. 2-24
2-6 Processor LEDs After Self-Test........................................... 2-26
2-7 IOP, DWLMA, and Clock Card LEDs ................................. 2-30
A-1 KA7AA Machine Check Parse Tree ......................................A-4
A-2 KA7AA Hard Error Interrupts............................................A-11
A-3 KA7AA Soft Error Interrupts..............................................A-19
A-4 IOP Interrupts......................................................................A-20
A-5 DWLMA Interrupts..............................................................A-22
B-1 Command Packet Structure ..................................................B-2
B-2 Brief Data Packet Structure..................................................B-4
B-3 Full Data Packet Structure ...................................................B-5
B-4 Full Data Packet: Values for Characters 1–6.......................B-6
B-5 Full Data Packet: Values for Characters 7–34.....................B-7
B-6 Full Data Packet: Values for Characters 35–47...................B-8
B-7 Full Data Packet: Values for Characters 48–54...................B-9
B-8 IOP Module...........................................................................B-12
B-9 IOP Oscillator Switch Settings............................................B-13
Tables
1 VAX 10000 Documentation ................................................... viii

vi
2 Related Documents ................................................................... x
1-1 Power Regulator LED Summary........................................... 1-8
1-2 Control Panel LEDs During Power-Up............................... 1-13
1-3 XMI PIU Power Regulator LEDs ........................................ 1-17
1-4 XMI PIU Power Switches - Regulator B ............................. 1-17
2-1 System Testing....................................................................... 2-2
2-2 Test Numbers Indicated by KA7AA LEDs ......................... 2-28
2-3 DWLMA LEDs ..................................................................... 2-31
3-1 Exercisers ............................................................................... 3-3
B-1 Sample Brief Packet Information..........................................B-3
B-2 Sample Full/History Packet Information ...........................B-10
B-3 LED Status When a Power Converter Fails.......................B-13

vii
Preface
Intended Audience
This manual is written for Digital customer service engineers and self-
maintenance customers.
Document Structure
This manual uses a structured documentation design. Topics are organ-
ized into small sections for efficient on-line and printed reference. Each
topic begins with an abstract. You can quickly gain a comprehensive over-
view by reading only the abstracts. Next is an illustration or example,
which also provides quick reference. Last in the structure are descriptive
text and syntax definitions.
This manual has three chapters and two appendixes, as follows:
•Chapter 1, Troubleshooting During Power-Up, explains what
can go wrong during power-up and how to identify the cause of the
problem.
•Chapter 2, System Self-Test, tells how to interpret the self-test
console display and module LEDs.
•Chapter 3, Diagnostics, describes the various diagnostics used to
test the system.
•Appendix A contains the parse trees, and Appendix B contains
guidelines for troubleshooting the power system.

viii
Conventions Used in This Document
The text shown in command syntax uses these conventions:
•Bold text indicates elements to be typed at the terminal.
•Brackets ([]) indicate that an element is optional.
•Braces ({}) indicate a choice from the enclosed list.
•Angle brackets (<>) indicate that the enclosed text is not a literal de-
piction of the element but instead a reference to the kind of item that
can appear in that position.
Icons such as those shown below are used in illustrations for designating
part placement in the system described. A shaded area in the icon shows
the location of the component or part being discussed.
Document Titles
Table 1 lists the books in the VAX 10000 documentation set. Table 2 lists
other documents that you may find useful.
Table 1 VAX 10000 Documentation
Rear
Front
Title Order Number
Installation Kit EK–1000A–DK
Site Preparation Guide EK–1000A–SP
Installation Guide EK–100EA–IN
Hardware User Information Kit EK–1001A–DK
Operations Manual EK–1000A–OP
Basic Troubleshooting EK–1000A–TS

ix
Table 1 VAX 10000 Documentation (Continued)
Title Order Number
Service Information Kit EK–1002A–DK
Pocket Service Guide EK–1000A–PG
Advanced Troubleshooting EK–1001A–TS
Platform Service Manual EK–1000A–SV
System Service Manual EK–1002A–SV
Reference Manuals
Console Reference Manual EK–70C0B–TM
KA7AA CPU Technical Manual EK–KA7AA–TM
MS7AA Technical Manual EK–MS7AA–TM
I/O System Technical Manual EK–70I0A–TM
Platform Technical Manual EK–7000A–TM
Upgrade Manuals
KA7AA CPU Installation Card EK–KA7AA–IN
MS7AA Memory Installation Card EK–MS7AA–IN
DWLMA XMI PIU Installation Guide EK–DWLMA–IN
H7237 Battery PIU Installation Guide EK–H7237–IN
BA654 Disk PIU Installation Guide EK–BA654–IN
DWMBB VAXBI PIU Installation Guide EK–DWMBB–IN
Removable Media Installation Guide EK–TFRRD–IN

x
Table 2 Related Documents
Title Order Number
General Site Preparation
Site Environmental Preparation Guide EK–CSEPG–MA
System I/O Options
CIXCD Interface User Guide EK–CIXCD–UG
DEC FDDIcontroller 400 Installation/Problem
Solving EK–DEMFA–IP
DEC LANcontroller 400 Installation Guide EK–DEMNA–IN
DEC LANcontroller 400 Technical Manual EK–DEMNA–TM
DSSI VAXcluster Installation and Troubleshoot-
ing Manual EK–410AA–MG
InfoServer 150 Installation and Owner’s Guide EK–INFSV–OM
KFMSA Module Installation and User Manual EK–KFMSA–IM
KFMSA Module Service Guide EK–KFMSA–SV
RF Series Integrated Storage Element User Guide EK–RF72D–UG
TF85 Cartridge Tape Subsystem Owner’s Manual EK–OTF85–OM
Operating System Manuals
VMS Upgrade and Installation Supplement:
VAX 7000–600 and VAX 10000–600 Series AA–PRAHA–TE
VMS Network Control Program Manual AA–LA50A–TE
VAXclusters and Networking
HSC Installation Manual EK–HSCMN–IN
SC008 Star Coupler User’s Guide EK–SC008–UG
VAX Volume Shadowing Manual AA–PBTVA–TE
Peripherals
Installing and Using the VT420 Video Terminal EK–VT420–UG
LA75 Companion Printer Installation and User
Guide EK–LA75X–UG

Troubleshooting During Power-Up 1-1
Chapter 1
Troubleshooting During Power-Up
This chapter gives troubleshooting information on the power system. Sec-
tions include:
•Power System Overview
•Power-Up Troubleshooting Flowchart
•AC Input Box
•H7263 Power Regulators
•Cabinet Control Logic Module
•Control Panel
•Blower
•XMI Plug-In Unit
•Troubleshooting the XMI Plug-In Unit

1-2 Troubleshooting During Power-Up
1.1 Power System Overview
In general, the power system (Figure 1-1) consists of AC input
boxes, DC distribution boxes, power regulators, and battery plug-
in units.
Figure 1-1 Power System
System or 
Expander 
Front
Power Regulators
BXB-0052D-92
Battery PIUs
System 
Cabinet
Front
System or 
Expander 
Rear
DC Distribution Box
AC Input Box
CCL Module
Battery
Cabinet
Front

Troubleshooting During Power-Up 1-3
AC Input Box
Each system and expander cabinet has an AC input box. It provides the
interface to the AC utility power via a three-phase, five-wire connector
with attached power cord. The AC input box also contains the main input
circuit breaker and fuses, and a power line monitoring port.
DC Distribution Box
Each system and expander cabinet has a DC distribution box. It provides
the interconnect for the AC input box and power regulators. It also func-
tions as the:
•Distribution point for 48 VDC system power
•Battery pack interface to the power regulators
•Signal interconnect from the CCL module to the power regulators
Power Regulators
Each system and expander cabinet has three power regulators operating in
parallel, two units required for the load and the third used as a backup
unit. Each power regulator provides the following:
•48 VDC output
•LPS OK <A:C>L signal
•Power system status via serial data lines
•Non-switched 48 VDC power to the CCL module
•Status indicators for fault isolation
•Battery charging and monitoring circuitry
•Battery backup converter
Battery Plug-In Units (PIUs)
Battery PIUs are contained in the bottom of the system cabinet and in the
battery cabinet(s). Battery PIUs provide uninterrupted power in the event
of a power failure. The combination of two battery PIUs in a system or
battery cabinet provides backup for the cabinet’s three regulators, labeled
A, B, and C. Eight batteries support each regulator.
For more information:
Platform Service Manual

1-4 Troubleshooting During Power-Up
1.2 Power-Up Troubleshooting Flowchart
Figure 1-2 shows the power-up sequence.
Figure 1-2 Power-Up Sequence
System Circuit Breaker
in On Position
Circuit Breaker
Indicators
are Red
Yes
No
BXB-0057-92
See
Section 1.3
Yes
H7263 LEDs
Green: Fast Flash
Yellow:Off
Yes
CCL Power
LED is ON
No
No
Turn Keyswitch
to Enable.
Yes
No
Yes
H7263 LEDs
Green: On
Yellow:Off
Yes
Blower Spins Up No
A
A
Control
Panel LEDs
Run: Off, Key On: On
Fault: Slow
Flash 
B
See
Section 1.4
See
Section 1.5
See
Section 1.6
See
Section 1.7
No See
Section 1.4

Troubleshooting During Power-Up 1-5
Figure 1-2 Power-Up Sequence (Continued)
Yes
No
BXB-0058-92
See Section 1.9
Yes
PIU MOD OK
LEDs Go On
LSB Modules'
Self-Test LEDs
Go On
No See Sections
1.8 and 1.9
No
End of Power-Up
Sequence
B
PIU 48V LEDS
Go On
See Section 1.5,
Appendix B, and
Chapter 2
Yes
CCL Module
PIU LEDs
Go On
No See Section 1.5

1-6 Troubleshooting During Power-Up
1.3 AC Input Box
The AC input box with circuit breaker is located in the upper rear
of a system or expander cabinet. The circuit breaker has four in-
dicators (see Figure 1-3). All four indicators should be RED when
the circuit breaker is in the On position.
Figure 1-3 AC Input Box
BXB-0049F-92
System or
Expander
Rear
CB AS
Breaker
Indicator
A - Regulator slot A
B - Regulator slot B
C - Regulator slot C
S - Sensor circuit

Troubleshooting During Power-Up 1-7
The AC input box accepts three-phase power; the three leftmost indicators
on the circuit breaker show the state of each pole (one phase per pole). If
an indicator is green, the pole is in the Off position or tripped due to an
overload. If an indicator is red, the pole is in the On position and is not
tripped. The fourth rightmost indicator reflects the mechanical position of
the circuit breaker. This indicator is red when the circuit breaker is in the
On position and green when the circuit breaker is in the Off position.
Figure 1-4 shows the troubleshooting steps for the AC input box.
Figure 1-4 AC Input Box Troubleshooting Steps
System or 
Expander
Rear
Circuit Breaker
Indicators
are Red
No Check power regulators for an input short.
BXB-0075A-92
Disengage power regulator and set circuit
breaker to the ON position.
If green indicator appears again,
AC inputbox is bad.
Remove & insert power regulator in another slot.
Set circuit breaker to the ON position.
If green indicator lights indicating the new slot is bad,
 replace the power regulator.
CB AS
For more information:
Platform Service Manual

1-8 Troubleshooting During Power-Up
1.4 H7263 Power Regulators
The H7263 power regulators are located in the upper right front of
the cabinet. Each power regulator has a Run LED and a Fault
LED (see Figure 1-5).
Figure 1-5 H7263 Power Regulator LEDs
Table 1-1 Power Regulator LED Summary
Front
Run LED
Fault LED
BXB-0064r-92
Run (Green) Fault (Yellow) Condition
Off Off No AC power present
Off On Fatal fault
Fast flash Off AC power present.
Keyswitch in Disable position.
On Fast flash Nonfatal fault
On Slow flash Battery discharge mode
On Off Normal operation

Troubleshooting During Power-Up 1-9
Figure 1-6 H7263 Power Regulator Troubleshooting Steps
NOTE: Replace the power regulator if the LEDs indicate a fatal fault.
Nonfatal faults include:
•Internal heatsink temperature warning
•Power factor correction stage failed
•Regulator/battery failed battery test (see Appendix B)
•48V to CCL module exceeds specified limits
H7263 LEDs
Green: Fast Flash
Yellow:Off
H7263 LEDs
Green: On
Yellow:Off
No
BXB-0076A-92
No
If LEDs are off on all regulators, check AC 
input voltage. 
LEDs off ?
Green LED: flash fast, yellow LED:off
If LEDs are off on one regulator, set the AC
circuit breaker to off and then on to see if 
regulator responds. 
Replace regulator if both LEDs remain off.
Check the CCL-to-regulator cable.
Check the cable from the control panel to
the CCL module.
Has only one regulator failed? Replace.
Check the regulator connectors at the DC 
distribution box.

1-10 Troubleshooting During Power-Up
1.5 Cabinet Control Logic Module
The cabinet control logic (CCL) module is located in the upper
front of the cabinet, behind the control panel. The CCL module
controls power sequencing and is wired to the control panel, DC
distribution box, LSB backplane, blower, PIUs, optional removable
media, and expander cabinets. The module has a power LED and
four PIU enable LEDs. You can see the CCL LEDs from the rear of
the cabinet when the rear door is open.
Figure 1-7 CCL Module LEDs
During power sequencing, the CCL power LED goes on to indicate that
power is present on the module. A PIU LED goes on to indicate that a PIU
is present in the quadrant and that its power regulators are enabled. Fig-
ure 1-8 shows the troubleshooting steps for the CCL module.
BXB-0044B-92
Power
LED
PIU 1
PIU 2
PIU 3
PIU 4
PIU 4
Quadrant 4
PIU 3
Quadrant 3
PIU 2
Quadrant 2
PIU 1
Quadrant 1
Rear
Front
Rear