Solving Computer Problems - IBM L40 SX Quick Reference
Personal system/2
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Also See for L40 SX:
- Service manual (24 pages) ,
- Quick reference (172 pages) ,
- Hardware maintenance manual (503 pages)
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Solving Computer Problems
Problems with your computer can be caused by software, hardware,
or both. You can test the hardware yourself using computer internal
self-tests and the testing programs on the backup copy of the
Reference Diskette. If a hardware problem occurs during this testing,
an error message appears with the cause of the problem and the
action to take.
By using the Reference Diskette, the Troubleshooting Charts, and
the other information in this section, you should be able to solve the
problem yourself or obtain a considerable amount of information
about the problem.
Always use the backup copy of the Reference Diskette. The backup
copy should contain your computer's current configuration
information and testing programs.
IMPORTANT
Use this section to test IBM products only. Non-IBM products may
give misleading errors or incorrect computer responses. Refer to the
instructions supplied with those products for testing information.
This section contains:
Testing ......................................................................................... 69
Troubleshooting Charts................................................................ 70
Display Problems .................................................................... 70
Messages on the Screen ........................................................ 71
What If Testing Cannot Find the Problem?.................................. 73
Icons on the System Status Display Panel ............................. 73
Power Problems...................................................................... 75
Keyboard, Pointing Device Problems ..................................... 75
Printer Problems ..................................................................... 77
External PS/2 Display Problems............................................. 77
Option Problems ..................................................................... 78
Software Problems.................................................................. 79
Intermittent Problems.............................................................. 80
Reference Diskette Problems ................................................. 80
Getting Service ....................................................................... 81
67
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