IBM 7012 G Series, Service Manual

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3-1540-17
Maintenance Analysis Procedures (MAPs)
Step 17
(from Step 16)
1. Set the power button on the system unit to Off.
2. Unplug the system from the electrical outlet.
3. Record the slot numbers of the adapters. Label and record the location of any cables
attached to the adapters.
Remove all the adapters from the MCA box except the SCSI.
4. Remove all devices except the CD-ROM drive (if the CD-ROM drive is not installed,
install it).
5. Plug the system into the electrical outlet.
6. Set the power button on the system unit to On.
7. Be sure that the diagnostic CD-ROM is inserted into the CD-ROM drive.
8. If the Maintenance Menu is displayed, select
System Boot
, then
Boot From List
.
9. If the system stops with a
260
displayed, and the Main Menu is displayed, Select
Exit
Main Menu and Start System (Boot)
and press Enter. When the “Starting
System Boot” menu displays, press Enter. Repeat this procedure each time these
conditions occur.
10.Wait for one of the following conditions to occur:
•
The system stops with a flashing or solid
269
displayed in the operator panel display.
•
The system stops with
c31
displayed in the operator panel display.
Is
c31
displayed in the operator panel display
?
NO One of the FRUs remaining in the CPU Enclosure is defective.
In the following order, exchange the FRUs that have not been exchanged:
1. System planar (SP)
Repeat Step 17 until the defective FRU is identified or all the FRUs have
been exchanged.
If the symptom did not change and all the FRUs have been exchanged call
your service support person for assistance.
If the symptom has changed check for loose cards, cables, and obvious
problems. If you do not find a problem return to Step 1 in this MAP and
follow the instructions for the new symptom.
YES Go to Step 8.