b. Use a multimeter to measure the DC voltage at the battery charger unit
outlets, or AC voltage at the AC module or Power Distribution Unit to the
power supplies.
Is the DC voltage from 145 V DC to 259 V DC (200 V AC to 240 V AC for
dual line cord units and Power Distribution Units) for the battery charger
unit?
Yes No
↓ Exchange the following as installed:
v Battery charger unit (see “BATCHGR” on page 505 BATCHGR)
v AC module (see “ACMODUL” on page 495 ACMODUL)
v Power Distribution Unit
This ends the procedure.
55. Perform the following:
DANGER
Dangerous voltage being measured. (RSFTD005)
a. Connect the AC power jumper cables to the battery charger unit, AC
module, or Power Distribution Unit.
b. Disconnect the AC power jumper cable at the power supplies.
c. Use a multimeter to measure the DC voltage of the power jumper cables
input to the power supplies.
Is the DC voltage from 145 V DC to 259 V DC (200 V AC to 240 V AC for
dual line cord units and Power Distribution Units) for each power jumper
cable?
Yes No
↓ Exchange the power jumper cable.
This ends the procedure.
56. Exchange the following parts one at a time.
v Display panel (CTLPNL).
v Power supply (PWRSPLY), with a new unit, replace one of the power
supplies 1, 2, or 3 (if installed) until the failing unit is found.
v SPCN card unit (TWRCARD).
This ends the procedure.
57. Use a multimeter to measure the AC voltage at the internal uninterruptible
power supply outlets to the power supplies. Is the AC voltage from 200 V AC
to 240 V AC?
No Yes
↓ Go to step 60 on page 53 of this procedure.
58. Perform the following:
a. Check the uninterruptible power supply breakers to ensure that they are in
the On position.
b. Check the battery connectors to ensure that they are seated
c. Check the transformer connector to ensure that it is seated correctly.
d. Use a multimeter to measure the AC voltage at the internal uninterruptible
power supply outlets to the power supplies.
Power Problems
52
iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1
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