8.
Make sure that the frame that will not power off has been switched to the
system unit that is connected by the SPCN frame-to-frame cable. Does the
frame power off?
No
Yes
↓
This ends the procedure.
9.
Perform the following:
a.
Verify that the battery power unit is not powering the system unit or frame.
b.
Remove the battery power unit (see “Chapter 4. Removal and Installation
Procedures” on page 617 for the model or FC that you are working on).
c.
Be sure there are no jobs running on the system. Disconnect the mainline
AC power cable or on systems with dual line cords disconnect both of the
mainline AC power cables.
d.
Exchange the following FRUs in the system unit or frame, one at a time (see
“Chapter 4. Removal and Installation Procedures” on page 617.):
If the system unit is failing:
v
Control panel
v
SPCN card (TWRCARD)
v
Control panel cable
If the expansion unit is failing:
v
The SPCN card (TWRCARD) or the battery charger unit (BATCHGR) in
the frame that will not power off.
v
The SPCN card (TWRCARD) in the frame preceding the frame that will
not power off.
v
The SPCN frame-to-frame cable.
This ends the procedure.
Power Problems
58
iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1
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