IBM iSeries Series Hardware Problem Analysis And Isolation page 64

v Yes: Continue with the next step.
v No: Connect the ac power jumper cables correctly at both ends.
This ends the procedure.
38. Are you working on a frame with an internal uninterruptible power supply? (FC 5033, 5034, or 5035
type)
v No: Continue with the next step.
v Yes: Go to step 41 (See page 52).
39. Perform the following:
DANGER
Dangerous voltage being measured. (RSFTD005)
a. Disconnect the ac power jumper cables from the battery charger unit AC module or Power
Distribution Unit.
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?
v Yes: Continue with the next step.
v No: Exchange the following (as installed):
– Battery charger unit (see symbolic FRU "BATCHGR" on page 285)
– AC module (see Locations and addresses)
– Power Distribution Unit
This ends the procedure.
40. 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?
v No: Exchange the power jumper cable.
This ends the procedure.
v Yes: Exchange the following parts one at a time:
– SPCN card unit (see symbolic FRU "TWRCARD" on page 470).
– Control Panel (see symbolic FRU "CTLPNL" on page 323).
– Power supply. If more than one power supply is present, install the new power supply in each
position until the failing unit is found. See Locations and addresses for the model you are
working on.
This ends the procedure.
41. 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?
v No: Continue with the next step.
v Yes: Go to step 44 (See page 53).
52
iSeries: iSeries Server 270, 800, 810, 820, 825, 830, 840, 870, 890, SB2, and SB3 Hardware Problem Analysis and Isolation