No Yes
↓ Exchange the PCC in the failing frame. See the removal and
installation procedures in this book or in the Migrated Expansion Tower
Problem Analysis, Repair and Parts, depending on the secondary frame
you are working on.
This ends the procedure.
6. Is the Unit Emergency Power Off (UEPO) switch on the secondary frame set
to the On position?
No Yes
↓ Go to step 8 of this procedure.
7. Perform the following:
a. Check with the customer to determine why the UEPO switch is set to the
Off position.
b. Set the UEPO switch to the On position.
c. Go to step 30 on page 49 of this procedure.
8. Is the mainline AC power cable from J12 on the PCC to the customer’sAC
power outlet connected and seated correctly at both ends?
Note: J12 may not be present on machines in some countries.
No Yes
↓ Go to step 13 of this procedure.
9. Perform the following:
a. Power off the system (see “Powering On and Powering Off the System and
Logical Partitions” on page 922).
b. Set circuit breaker CB1 on the PCC to the O (off) position.
10. Connect the mainline AC power cable correctly at both ends.
Note: The connectors shown may not be present on machines in some
countries.
11. Set circuit breaker CB1 to the | (on) position.
12. Power on the system (see Powering Off and Powering On the System or
Expansion Tower). Does the failing frame become powered on?
No Yes
↓ Go to step 23 on page 46 of this procedure.
13. Perform the following:
DANGER
Dangerous voltage being measured. (RSFTD005)
a. Power off the system.
b. Use a multimeter to measure the AC voltage at the customer’s AC power
outlet.
Is the AC voltage from 200 V AC to 240 V AC or from 100 V AC to 127 V AC?
Yes No
↓ Inform the customer that the AC voltage at the power outlet is not
correct.
This ends the procedure.
Power Problems
44
iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1
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