IBM 6151 Maintenance And Service Manual page 374

Step 4
1. Set the power switch on the system unit to Off.
2. Unplug the external power cable to the system unit.
3.
Connect the large power connector to the system board.
4.
Plug in the external power cable to the system unit.
5.
Be sure the power has been off
30
seconds; then set the power
switch on the system unit to On.
6. Wait 15 seconds; then answer the following question.
bJD
AJZB159
IS THE POWER-ON INDICATOR ON?
NO Go to "Step
9"
on page
3-8800-9.
YES
Continue on the next page.
3-8800-4
Service Manual