IBM 7012 G Service Manual
7012 G Series
Service Guide
Third Edition (April 1997)
This edition notice applies to the
The following paragraph does not apply to the United Kingdom or any country where such
provisions are inconsistent with local law: THIS PUBLICATION IS PRINTED “AS IS” WITHOUT
WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some
states do not allow disclaimer of express or implied warranties in certain transactions; therefore, this
statement may not apply to you.
This publication could include technical inaccuracies or typographical errors. Changes are periodically made
to the information herein; these changes will be incorporated in new editions of the publication. The
manufacturer may make improvements and/or changes in the product(s) and/or program(s) described in this
publication at any time, without notice.
It is possible that this publication may contain reference to, or information about, products (machines and
programs), programming, or services that are not announced in your country. Such references or information
must not be construed to mean that such products, programming, or services will be offered in your country.
Any reference to a licensed program in this publication is not intended to state or imply that you can use only
the licensed program indicated. You can use any functionally equivalent program instead.
AIX is a registered trademark of International Business Machines Corporation.
Medeco is a trademark of Medeco Company.
Micro Channel is a registered trademark of International Business Machines Corporation.
SystemGuard is a trademark of International Business Machines Corporation.
Velcro is a trademark of Velcro Industries.
Copyright International Business Machines Corporation, 1994, 1997. All rights reserved.
Note to US Government Users – Documentation and programs related to restricted rights – Use, duplication,
or disclosure is subject to the restrictions set forth in the GSA ADP Schedule Contract.
7012 G Series Service Guide.
This edition obsoletes all previous editions.
Table of Contents
Communications Statements vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Notices xi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
About This Book xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1. Reference Information 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Unit System Unit Locations 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear View without Cover 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Side View without Covers 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory Cards 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Serial Port Splitter Cable 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keyboard / Mouse Card (KBD) 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expansion Unit System Unit Locations 1-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description of the Disk Expansion Unit 1-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cluster Power Control 1-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Planar Connector Locations 1-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Flow 1-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Flow 1-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCSI Cable Routing 1-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 1-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cables 1-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Inspection Guide 1-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2. Using System Guard 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SystemGuard Power 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SystemGuard Components 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SystemGuard Bring-Up MicroProcessor Overview 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Operator Panel 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SystemGuard Consoles 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Physical and Electronic Key 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SystemGuard Phases 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stand-By Phase 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Init Phase 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Phase 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Boot Phase 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Run-Time Phase 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SystemGuard Parameters and Flags 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Working with SystemGuard 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SystemGuard Menus 2-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Menu 2-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display Configuration 2-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display BUMP Error Log 2-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enable Service Console 2-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disable Service Console 2-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface iii
Reset 2-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power-Off 2-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Boot 2-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Off-Line Tests 2-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Set Parameters 2-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Set National Language 2-38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Some Common SystemGuard Tasks 2-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Customizing SystemGuard For Your Needs 2-58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reloading the Flash EEPROM 2-60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3. Maintenance Analysis Procedures (MAPs) 3-1520-1. . . . . . . . . . . . . . . . . . . . .
MAP 1520: 7012 G Series System Unit - Power Map 3-1520-1. . . . . . . . . . . . . . . . . . . . . . . . .
MAP 1540:7012 G Series Minimum Configuration 3-1540-1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 4. Removal and Replacement Procedures 4-1. . . . . . . . . . . . . . . . . . . . . . . .
Handling Static-Sensitive Devices 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Cover 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Side Cover 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Cover 4-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Unit Base 4-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operator Panel 4-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Unit Adapters 4-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Fan 4-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Unit Front Fan 4-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Unit CPU/Memory Card Retainers 4-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disk Drive 4-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Unit Diskette Drive 4-29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Media Devices 4-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Unit CPU Card 4-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Unit Memory Card 4-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory Modules 4-38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RS-485 Card 4-40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Unit Battery 4-42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply 4-44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Unit System Planar 4-46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key Lock 4-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expansion Unit ECB Card 4-50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expansion Unit SCSI Cable 4-51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 5. System Installation 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Step 1. Inventory 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Step 2. Observe this Safety Notice during Installation 5-2. . . . . . . . . . . . . . . . . . . . . . . . .
Step 3. Checking Customer Outlets 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Step 4. Setting Up the System Unit 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Step 5. Set Up Each Device Being Attached 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Step 6. Connecting Devices to Standard I/O Ports 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Step 7. Connecting Devices to the Adapters 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Step 8. Arranging the System Unit and Devices 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Checkout 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iv Service Guide
Chapter 6. Expansion Installation 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RS-485 Cable Interconnection 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCSI Cable Connection 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recognizing the New Unit 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disconnecting Expansion Units 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 7. Parts 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acronyms for FRU Parts 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Covers and Chassis 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronics, Drives, and Power (1 of 2) 7-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronics, Drives, and Power (2 of 2) 7-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7012 G Series Expansion Unit Unique Parts 7-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix A. SystemGuard Test Groups A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SystemGuard Test Groups Table A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SystemGuard Test Group Descriptions A-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BUMP Quick I/O Tests Group A-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
JTAG Test Group A-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Direct I/O Test Group A-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CPU Test Group A-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DCB and Memory Test Group A-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interrupt Tests Group A-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CPU MultiProcessor Test Group A-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix B. Modifying SystemGuard Parameters B-1. . . . . . . . . . . . . . . . . . . . . . . . .
Default Parameter Values B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing Flags and Parameters Under AIX Service Aids B-3. . . . . . . . . . . . . . . . . . . . .
Modifying the Remote Authorization Flag B-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modifying the Dial-Out Authorization Flag B-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modifying Dial-In Phone Numbers B-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modifying Dial-Out Phone Numbers B-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modifying the Electronic Mode Switch from Service Line Flag B-6. . . . . . . . . . . . . . . . . .
Reloading the Flash EEPROM B-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix C. SystemGuard Remote Operation Configuration C-1. . . . . . . . . . . . . . .
Terminal Configuration C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flags and Parameters Settings C-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modem Configuration Files C-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Initializing a Modem C-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Testing Dial-Out C-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix D. Off Line Diagnostic Error Codes D-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Error Logging D-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix E. System Power States E-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power States E-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glossary: Special Terms Used in SystemGuard X-1. . . . . . . . . . . . . . . . . . . . . . . . . . .
Index X-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface v
vi Service Guide
Communications Statements
The following statement applies to this product. The statement for other products intended
for use with this product appears in their accompanying manuals.
Federal Communications Commission (FCC) Statement
Note: This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his
own expense.
Properly shielded and grounded cables and connectors must be used in order to meet FCC
emission limits. Neither the provider nor the manufacturer are responsible for any radio or
television interference caused by using other than recommended cables and connectors or
by unauthorized changes or modifications to this equipment. Unauthorized changes or
modifications could void the user’s authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired
operation.
United Kingdom Telecommunications Safety Requirements
This equipment is manufactured to the International Safety Standard EN60950 and as such
is approved in the UK under the General Approval Number NS/G/1234/J/100003 for indirect
connection to the public telecommunication network.
The network adapter interfaces housed within this equipment are approved separately, each
one having its own independent approval number. These interface adapters, supplied by the
manufacturer, do not use or contain excessive voltages. An excessive voltage is one which
exceeds 70.7 V peak ac or 120 V dc. They interface with this equipment using Safe Extra
Low Voltages only. In order to maintain the separate (independent) approval of the
manufacturer’s adapters, it is essential that other optional cards, not supplied by the
manufacturer, do not use main voltages or any other excessive voltages. Seek advice from a
competent engineer before installing other adapters not supplied by the manufacturer.
International Electrotechnical Commission (IEC) Statement
This product has been designed and built to comply with IEC Standard 950.
Preface vii
European Union (EU) Statement
This product is in conformity with the protection requirements of EU Council Directive
89/336/EEC on the approximation of the laws of the Member States relating to
electromagnetic compatibility .
Neither the provider nor the manufacturer can accept responsibility for any failure to satisfy
the protection requirements resulting from a non-recommended modification of the product,
including the fitting of option cards not supplied by the manufacturer.
This product has been tested and found to comply with the limits for Class A Information
Technology Equipment according to CISPR 22 / European Standard EN 55022. The limits
for Class A equipment were derived for commercial and industrial environments to provide
reasonable protection against interference with licensed communication equipment.
Attention: This is a Class A product. In a domestic environment this product may cause
radio interference in which case the user may be required to take adequate measures.
Avis de conformité aux normes du ministère des Communications du
Canada
Cet appareil numérique de la classe A respecte toutes les exigences du Réglement sur le
matériel brouilleur du Canada.
Canadian Department of Communications Compliance Statement
This Class A digital apparatus meets the requirements of the Canadian
Interference-Causing Equipment Regulations.
VCCI Statement
The following is a summary of the VCCI Japanese statement in the box above.
This equipment is in the Class 1 category (information equipment to be used in
commercial and/or industrial areas) and conforms to the standards set by the Voluntary Control Council For Interference by Data Processing Equipment and Electronic Office Machines aimed at preventing radio interference in commercial and/
or industrial areas.
Consequently , when used in a residential area or in an adjacent area thereto, radio
interference may be caused to radios and TV receivers, etc.
Read the instructions for correct handling. VCCI–1.
viii Service Guide
Radio Protection for Germany
Dieses Gerät ist berechtigt in Übereinstimmung mit dem deutschen EMVG vom 9.Nov.92
das EG-Konformitätszeichen zu führen.
Der Aussteller der Konformitätserklärung ist die IBM Germany.
Dieses Gerät erfüllt die Bedingungen der EN 55022 Klasse A. Für diese Klasse von Geräten
gilt folgende Bestimmung nach dem EMVG:
Geräte dürfen an Orten, für die sie nicht ausreichend entstört sind, nur mit besonderer
Genehmigung des Bundesministers für Post und Telekommunikation oder des Bundesamtes
für Post und Telekommunikation betrieben werden. Die Genehmigung wird erteilt, wenn
keine elektromagnetischen Störungen zu erwarten sind.
(Auszug aus dem EMVG vom 9.Nov.92, Para.3, Abs.4)
Hinweis:
Dieses Genehmigungsverfahren ist von der Deutschen Bundespost noch nicht veröffentlicht
worden.
Preface ix
x Service Guide
Safety Notices
Note: For a translation of these notices, see
SA23-2652.
Definitions of Safety Notices
A
danger
or serious personal injury.
A danger notice appears on the following pages:
A
caution
moderate or minor personal injury.
A caution notice appears on the following pages:
An
system, or data.
notice indicates the presence of a hazard that has the potential of causing death
3-1520-1
4-1
4-44
5-2
notice indicates the presence of a hazard that has the potential of causing
xi
3-1520-1
4-1
4-30
4-42
5-2
5-3
attention
notice indicates an action that could cause damage to a program, device,
System Unit Safety Information
, order number
CAUTION:
A lithium battery can cause fire, explosion, or a severe burn. Do not recharge,
disassemble, heat above 100°C (212°F), solder directly to cell, incinerate, or expose
cell contents to water. Keep away from children. Replace only with the part number
specified for your system. Use of another battery may present a risk of fire or
explosion.
The battery connector is polarized; do not attempt to reverse the polarity.
Dispose of the battery according to local regulations.
Preface xi
Laser Safety Information
The optical drive in this system unit is a laser product. The optical drive has a label that
identifies its classification. The label, located on the drive, is shown below.
CLASS 1 LASER PRODUCT
LASER KLASSE 1
LUOKAN 1 LASERLAITE
APPAREIL A LASER DE CLASSE 1
TO IEC 825:1984 CENELEC EN 60 825:1991
The optical drive in this system unit is certified in the U.S. to conform to the requirements of
the Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21
CFR) Subchapter J for Class 1 laser products. Elsewhere, the drive is certified to conform to
the requirements of the International Electrotechnical Commission (IEC) 825 (1st edition
1984) and CENELEC EN 60 825:1991 for Class 1 laser products.
CAUTION:
A class 3 laser is contained in the device. Do not attempt to operate the drive while it
is disassembled. Do not attempt to open the covers of the drive as it is not
serviceable and is to be replaced as a unit.
Class 1 laser products are not considered to be hazardous. The optical drive contains
internally a Class 3B gallium-arsenide laser that is nominally 30 milliwatts at 830
nanometers. The design incorporates a combination of enclosures, electronics, and
redundant interlocks such that there is no exposure to laser radiation above a Class 1 level
during normal operation, user maintenance, or servicing conditions.
xii Service Guide
About This Book
This book provides maintenance information that is specific to the 7012 G Series system
unit, adapters, and attached devices that do not have their own service information. It also
contains Maintenance Analysis Procedures (MAPs) that are not common to other systems.
MAPs that are common to all systems are contained in
Channel Bus Systems
This book is used by the service technician for initial installation and to repair system
failures. This book assumes that the service technician has had training on the
Series
system unit.
ISO 9000
ISO 9000 registered quality systems were used in the development and manufacturing of
this product.
Related Information
The
Diagnostic Information For Micro Channel Bus Systems
contains the maintenance information and procedures that are common to all systems. The
information and procedures in this book apply to any system unit that uses the diagnostic
programs.
Adapters, Devices, and Cable Information
information about adapters, devices, and cabling for the system units. This manual also
contains the removal and replacement procedures for the logic boards on the disk drives.
This manual provides the service representative pin-out lists and cabling information to use
in isolating problems with customer cabling.
System Unit Safety Information
the danger and caution notices.
Diagnostic Information For Micro
.
7012 G
, order number SA23-2765,
, order number SA23-2764 contains reference
, order number SA23-2652, contains translated versions of
7012 G Series Setup Procedure,
The
the hardware setup of the base unit.
The
7012 G Series Expansion Unit Setup Procedure,
information about the hardware setup of the expansion unit.
7012 G Series Operator Guide,
The
the controls and features of the system unit.
Each attached device has a
the information needed for that device.
Setup and Operator Guide
order number SA23-2739, provides information about
order number SA23-2754, provides
order number SA23-2740, provides information about
and a
Service Guide
that provides
Preface xiii
Chapter 1. Reference Information
Use the following views of the system unit to locate the feature positions, connectors, and
system board slot positions.
Base Unit System Unit Locations
Rear
Cover
Left Side
Cover
Front Door
Media Bays
3.5-Inch
Diskette
Drive
Key Mode Switch
Base
Reset
Button
Operator
Panel
Operator
Panel
Display
Power
Button
Front Cover
Reference Information
1-1
Rear View without Cover
Power Cord
Receptacle
Keyboard
Mouse
Power Control Port
(RS-485)
Adapters
9-Pin Serial Port (S3)
25-Pin Serial Port
(S1/S2)
Parallel Port (P1)
Rear
Fan
1-2 Service Guide
Side View without Covers
Power
Supply
Micro
Channel
Adapter
Cards
RS-485
Card
Rear
Fan
1
...........
6
Optional Second
CPU Card Position 0
or
Two Disk Drives
Positions F and G
(G30 only)
Media Drive
Position A
Media Drive
Position B
Key Mode Switch
Diskette Drive
Position C
Operator
Panel
Front Fan
First CPU Card
Position 1
System
Planar
Memory Card
Position A
Disk Drive
Positions
D and E
Reference Information
1-3
Memory Cards
There are four types of memory cards as shown below. Memory cards can house from one
to four memory module kits composed of four memory modules each, which comply with the
JEDEC standard for 68 pin, ECC, 60 ns, 5 volt memory modules. The figure below illustrates
the types of memory cards.
MRE
Memory Card
Two Bank RLX
Memory Card
Four Bank NFX
Memory Card
SF5
Memory Card
See page 4-38 for the location of the memory cards on the system planar.
The figure below shows a standard memory module.
The maximum memory reachable with this kind of memory module is 1024MB, because up
to four memory module kits can be installed on the memory card.
Modules from different size kits cannot be mixed on the same memory card.
According to both the kind and the number of memory module kits installed on the memory
cards, these can be divided into the following configurations:
• MM32, which gives 32MB memory contains four 8MB memory modules.
• MM64, which gives 64MB memory contains four 16MB memory modules.
• MM128, which gives 128MB memory contains four 32MB memory modules.
• MM256, which gives 256MB memory contains four 64MB memory modules.
1-4 Service Guide
• NF256 board, based on 16M bit technology, which gives 256MB memory. It contains two
MM128 memory module kits.
• NF512 board, based on 16M bit technology, which gives 512MB memory. It contains four
MM128 memory module kits.
• NF1024 board, based on 16M bit technology, which gives 1024MB memory. It contains
four MM256 memory module kits.
Serial Port Splitter Cable
The splitter cable is used to generate two 25-pin serial ports (S1 and S2 ports).
It is installed in the 25-pin serial port located in the rear of the base unit.
Keyboard / Mouse Card (KBD)
The KBD card is used to manage the connectors dedicated to the keyboard, mouse and
speaker capability, but not a key click option on the base unit. It must be placed on the
dedicated connector of the system planar (Y10 connector), but interfaces with the system
through the Micro Channel bus, which sees the card as occupying a Micro Channel slot.
Connector used to place
the KBD card on the system
planar
Reference Information
1-5
Expansion Unit System Unit Locations
Description of the Disk Expansion Unit
The disk expansion unit is used to increase the number of media devices and/or disk drives.
All hardware components inside the disk expansion unit are accessible from the left side
after having removed the unit covers.
Power Supply
Media Devices
or Disk Drives
Rear Fan
Disk Drives
From the left side of the disk expansion unit, the following modules are accessible:
• Up to two 5.25-inch half height media devices (optional). Up to two 3.5-inch half height
disk drive can be installed instead.
• The operator panel (mandatory)
• The key mode switch (mandatory)
• The ECB card (mandatory)
• Up to two disk drives (optional) in the bottom tray
Key Mode Switch
Operator Panel
ECB Card
• Up to two disk drives (optional) in the upper tray
• One external cooling fan (mandatory)
• The power supply (mandatory).
1-6 Service Guide
Rear Side
The following figure shows the rear side of the disk expansion unit.
Power Cord Connector
SCSI Connector
To Base Unit
RS-485 In Port
RS-485 Out Port
Rear Fan
Disk Expansion Unit SCSI Bus
The disk expansion unit is equipped with one internal SCSI bus. It is driven by means of a
SCSI-2 single-ended controller via an external connection.
The SCSI bus features the following characteristics:
• SCSI-2 single-ended
• 16-bit wide data bus
• Support for single-ended devices (8/16 bits)
• 8bits and 16bits SCSI devices mixable on the same bus
• Fast data transfer (10MB per second for 8bits, 20MB per second for 16bits)
• Synchronous/Asynchronous data interchange.
Reference Information
1-7
RS-485 Card
The RS-485 card is installed in the rear of both the base and the disk expansion units.
It is provided with a variety of connectors, whose functions are explained in the following
figures.
Power Connector
(Coming From the Power Supply
INTERNAL VIEW
EXTERNAL VIEW (BASE UNIT)
Mouse External FanKeyboardRS-485
EXTERNAL VIEW (DISK EXP ANSION UNIT)
Power/Signal Connector
(Coming From the Operator Panel)
1-8 Service Guide
Not Used External FanRS-485 InRS-485 Out
Cluster Power Control
The cluster power controller (CPC) provides:
• Connectivity between the remote support facility and multiple CPUs through the modem
• Connectivity from any attached CPU to any disk drive drawer
• Central power-on and power-off through the TTY.
The CPC provides ports for connection of multiple 7012 G Series system units, 7013 J
Series system units, and 7015 Model R30, R40, and R50 CPU enclosures for interface
connection of CPUs and disk drive drawers. The CPC also contains ports for connection of a
modem and TTY.
For more information about the CPC, refer to
Guide
, order number SA23-2766.
Disk Drive Connectors
(PCI Connectors)
Disk Drive Connectors
(RS485 Connectors)
CPU A
1
2
CPU B
1
CPU
Connectors
2
CPU C
1
2
CPU D
1
2
Cluster Power Control Operator and Service
CPC
Expansion
Connectors
TTY Connector
Modem Connector
CPC
Left
CPC
Right
1
2
1
2
Reference Information
1-9
System Planar Connector Locations
Serial Ports 1 and 2
(with splitter)
Parallel
Port
Keyboard/Mouse
Card Connector
Serial Port 3
6 5 4 3 2 1
RS-485 Connector
Memory
Card
CPU Card
Position 0
Memory
Card
PQ
Battery
Connector
Operator
Panel
Connector
Micro Channel
Adapter Slots
CPU Card
Position 1
(Optional)
Diskette Drive
Connector
Power Supply
Signal Cable
Connector
Power Supply
Power Cable
Connector
1-10 Service Guide
Data Flow
Power Supply
System EEPROMs
VPD EPROMs
CPU Array
CPU card
L2
Tag
SMC
CCA
60X
DCB
CCD
Operator Panel
Micro Processor
Battery
Reset/Scroll Button
LCD
Keylock
Diskette Drive
L2
CAC
Address bus
Data bus
JTAG bus
COP bus
I2C bus
BUMP
EPROM
RAM
Standard
IO
SS bus
System
IO
S1 BUMP Console
S2 Service Console
S3
Parallel Interface
System Planar
TOD Clock
NVRAM
Flash EPROM
Backup EPROM
SSGA
Memory bus
Memory Array
Memory card and DIMMs
Data bus
Base Unit I/O
Controller
Expansion Unit I/O
Controller
To
MCA bus
MCA bus
MicroChannel
Slots
To Expansion
MicroChannel
Planar
Reference Information
1-11
Power Flow
Power
Supply
Standby
Voltages
+5
+12 –12
EEPROM
TOD
Operator
Panel
System AC Cable
PDU
+5 +3,3/3,6 –12
Rear Fan
Module
Front Fan
Module
Memory
Card
Power
Voltages
+12
3.5-inch
Diskette
System
Planar
1-12 Service Guide
System Guard
Processor
Local Console
Access
Remote
Console Access
CPU Cards
Disk
Media
Position A
Disk
Media
Position B
SCSI Cable Routing
SCSI controller
6-Position SCSI Cable
(4)
Upper dev.
(5)
Lower dev.
F (2)
3rd disk
D (0)
1st disk
SCSI controller
D (0)
1st disk
G (3)
4th disk
E (1)
2nd disk
4-Position SCSI Cable
E (1)
2nd disk
Terminator
(4)
Upper dev.
(5)
Lower dev.
Terminator
Reference Information
1-13
Specifications
Dimensions (Vertical Position)
Height: 450mm (17.5 inches)
Depth: 613mm (28.2 inches)
Width: 173mm (6.9 inches)
Weight (Maximum)
19 kg to 25 kg (43 to 55 pounds)
Operating Environment – Class B
Temperature: 16
Humidity: 8% to 80%
Maximum Wet Bulb: 23
Maximum Altitude: 2133 m (7000 feet)
Power Source Loading
0.34 kVA
Power Supply
275 watts
Operating Voltage
100 V ac to 125 V ac; 50 to 60 Hz
200 V ac to 240 V ac; 50 to 60 Hz
° to 32° C (60° to 90° F)
° C (60° F)
Heat Output
1380 BTU per hour
1-14 Service Guide
Power Cables
To avoid electrical shock, a power cable with a grounded attachment plug is provided. Use
only properly grounded outlets.
Power cables used in the U.S.A. and Canada are listed by Underwriter’s Laboratories (UL)
and certified by the Canadian Standards Association (CSA). These power cords consist of:
• Electrical cables, Type SVT or SJT.
• Attachment plugs complying with National Electrical Manufacturers Association (NEMA)
5-15P. That is:
“For 115 V operation, use a UL-listed cable set consisting of a minimum 18 AWG, Type
SVT or SJT three-conductor cord a maximum of 15 feet in length and a parallel blade,
grounding type attachment plug rated at 15 A, 125 V.”
“For 230 V operation in the U.S.A. use a UL-listed cable set consisting of a minimum 18
AWG, Type SVT or SJT three-conductor cable a maximum of 15 feet in length, and a
tandem blade, grounding type attachment plug rated at 15 A, 250 V.”
• Appliance couplers complying with International Electrotechnical Commission (IEC)
Standard 320, Sheet C13.
Power cables used in other countries consist of the following:
• Electrical cables, type HD21.
• Attachment plugs approved by the appropriate testing organization for the specific
countries where they are used.
“For units set at 230 V (outside U.S.A.): use a cable set consisting of a minimum 18
AWG cable and grounding type attachment plug rated 15 A, 250 V. The cable set should
have the appropriate safety approvals for the country in which the equipment will be
installed and should be marked ‘HAR’.”
Refer to the Parts Information section of this publication to find the power cables that are
available.
Reference Information
1-15
Service Inspection Guide
Perform a service inspection on the system when:
• The system is inspected for a maintenance agreement.
• Service is requested and service has not recently been performed.
• An alterations and attachments review is performed.
• Changes have been made to the equipment that may affect the safe operation of the
equipment.
• External devices that have their own power cable are added.
If the inspection indicates an unacceptable safety condition, the condition must be corrected
before servicing the machine.
Note: The correction of any unsafe condition is the responsibility of the owner of the
system.
Do the following:
1. Check the covers for sharp edges and for damage or alterations that expose the internal
parts of the system unit.
2. Check the covers for proper fit to the system unit. They should be in place and secure
with the screws tight.
Rear cover
Side Cover
Base
3. Power down the system.
4. Set the power switch of the system unit to Off.
5. Unplug the power cord.
Front Door
Media Bay A
(optional)
Media Bay B
(CD-ROM
drive)
Operator Panel
Front Cover
6. Remove the covers.
1-16 Service Guide
7. Check for alterations or attachments. If there are any, check for obvious safety hazards
such as broken wires, sharp edges, or broken insulation.
8. Check the internal cables for damage.
9. Check for dirt, water, and any other contamination within the system unit.
10.Check the voltage label on the back of the system unit to ensure that it matches the
voltage at the outlet.
11. Check the external power cable for damage.
12. With the external power cable connected to the system unit, check for 0.1 ohm or less
resistance between the ground lug on the external power cable plug and a jack screw on
the parallel port connector.
Power Cord
Receptacle
Adapters
Keyboard Port
Mouse Port
Power Control
Port (RS-485)
Rear
Fan
9-Pin Serial Port (S3)
25-Pin Serial Ports (S1/S2)
Parallel Port (P1)
13. If the system unit passes the test in the previous step, install the covers.
14. Check each external device that has its own power cable:
a. For damage to the power cord.
b. For the correct grounded power cable.
c. With the external power cable connected to the device, check for 0.1 ohm or less
resistance between the ground lug on the external power cable plug and the metal
frame of the device.
Reference Information
1-17
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