23. Perform the following:
a. Power off the system.
b. Remove one of the regulator cards that was not previously swapped indicated in this table for the
model selection for the SRC that was in steps 1 (See page 332) to step 22 (See page 334) that
sent you here and install a new one. See the Type, model, and part number list for part numbes.
Number Model Regulator
1201/1401 840/SB R1, R2
1202/1402 840/SB3 R4, R5, R6
1203/1403 840/SB3 R6, R7, R8
1204/1404 840/SB3 R9, R10
1205/1405 840/SB3 R11
1206/1406 840/SB3 R20
1207/1407 840/SB3 R23 (clock card)
c. Power on the system.
Does
the system power on?
v Yes: Continue with the next step.
v No: The regulator you removed in this step is the failing item.
This
ends the procedure.
24.
Have you swapped out all the regulators?
v No: Perform the following:
a. Power off the system.
b. Remove the new regulator where installed previously and install the original regulator.
c. Repeat step 23 (See page 335).
v Yes: This ends the procedure.
DPAC
For use by authorized service providers.
The two port adapter cable (P/N - 21F9345) is the failing item.
DRVSWCH
For use by authorized service providers.
The address switches on an Optical Disk Drive in the Optical Library need to be checked and verified.
Refer to the All 3995 Publications and Documentation
Web site for more information.
DSKDRV
For use by authorized service providers.
The disk drive and logic card in a migrated expansion tower may be failing.
See the DSKDRV symbolic FRU in the Migrated Expansion Tower Problem Analysis, Repair and Parts
manual on the V5R1 Supplemental Manuals web site
for FRU isolation instructions.
DSKTRY
For use by authorized service providers.
A disk unit tray or a disk unit holder in a migrated expansion tower may be failing.
Analyze hardware problems 335
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