IBM eserver 630 6C4 Service Manual page 113

v The ac power supply power LEDs are on. If equipped with dc power, the dc power
supply power LEDs are blinking. The power LED, located on the operator panel, is
blinking and OK is displayed on the operator panel.
When the power button on the operator panel is pressed:
– If equipped with dc power, the dc power LEDs on the power supplies come on.
– The power LED (for either ac or dc powered systems), on the operator panel,
comes on and all the fans start to turn. However, the dc power LEDs located on
the power supplies, and the power LED located on the operator panel and the
cooling fans do not stay on.
Go to "Step 1520-7" on page 95.
v An SRN referenced in the RS/6000 Eserver pSeries Diagnostic Information for
Multiple Bus Systems listed MAP 1520 in the "Actions/Descriptions" column. Go to
"Step 1520-11" on page 98.
Step 1520-2
Is the green power light on the power distribution panel on?
NO
YES
Step 1520-3
Do the following:
1. Unplug the main power cable from the wall outlet.
2. If you are servicing a drawer unit that is mounted in a rack, unplug the main power
cable from the power distribution panel.
3. Check that the power cable has continuity.
4. Check that the wall outlet has been wired correctly with the correct voltage.
Did you find a problem?
NO
YES
Step 1520-4
If you are servicing a drawer unit that is mounted in a rack, do the following:
1. Unplug the the system unit power cables from the power distribution panel.
2. Plug in the main power cable into the power distribution panel.
3. Plug in the main power cable from the wall outlet.
Is the green power light on the power distribution panel on?
NO
YES
Go to "Step 1520-3".
Go to "Step 1520-5" on page 94.
Go to "Step 1520-4".
Correct the problem. Go to "MAP 0410: Repair Checkout" in the RS/6000
Eserver pSeries Diagnostic Information for Multiple Bus Systems .
Replace the rack-mounted power distribution panel.
Go to "Step 1520-5" on page 94.
Chapter 3. Maintenance Analysis Procedures (MAPs)
93