IBM iSeries 270 Hardware Problem Analysis And Isolation

3. DANGER
Dangerous voltage being measured. (RSFTD005)
Perform the following:
a. Disconnect the mainline ac power cable from the customer’s ac power outlet.
b. Use a multimeter to measure the ac voltage at the customer’s ac power outlet.
Note: Some system models have more than one mainline ac power cable. For these models,
disconnect all the mainline ac power cables and measure the ac voltage at all ac power outlets before
answering the following question.
Is the ac voltage from 200 V ac to 240 V ac ?
v Yes: Continue with the next step.
v No: Perform the following:
a. Inform the customer that the ac voltage at the power outlet is not correct.
b. Reconnect the mainline ac power cables to the power outlet when the ac voltage at the power
outlet is correct.
This ends the procedure.
4.
Are the mainline ac power cables from the ac module or charger unit to the customer’s ac power outlet
connected and seated correctly at both ends?
v Yes: Perform the following:
DANGER
Dangerous voltage being measured. (RSFTD005)
a. Disconnect the mainline ac power cables from the ac module or battery charger unit.
b. Use a multimeter to measure the ac voltage at the ac module or battery charger unit end of the
mainline ac power cables.
Continue
with the next step.
v No: Perform the following:
a. Connect the mainline ac power cables correctly at both ends.
b. Go to step 1 (See page 34).
5.
Is the ac voltage from 200 V ac to 240 V ac?
v Yes: Continue with the next step.
v No: Perform the following:
a. Exchange the mainline ac power cable.
b. Go to step 1 (See page 34).
6. Is the frame with the problem a FC 8079(001), 9074 or 9079?
v Yes: Go to step 8 (See page 36).
v No: Continue with the next step.
7.
Perform the following:
a. Disconnect the mainline ac power cable from the customer’s ac power outlet.
Note: On Model 840 and SB3 disconnect both mainline ac power cables.
b. Exchange one of the following FRUs:
Attention: Disconnecting or removing the 2620 or 2628 cryptographic I/O processor for any reason
causes the loss of the master encryption key. Read Cryptographic I/O processor before
disconnecting or removing the cryptographic I/O processor.
v System unit control panel card (see symbolic FRU “CTLPNL” on page 323)
v SPCN card (see symbolic FRU “TWRCARD” on page 470)
Analyze hardware problems 35

IBM iSeries 270 Specifications

General

Brand	IBM
Model	iSeries 270
Category	Server
Language	English