IBM 7012 300 Series Installation And Service Manual page 36

Step 9
(from Step 5)
1. Set the power switch on the system unit to Off.
2. For Models 340, 34H, 350, 355, 360/36T, 365, 370/37T, and 375, 380, 390, 39H, 397,
and models 320, 32E, and 32H with SCSI-attached disk drives, connect power
connector P3 to the rear disk drive.
For Models 320, 32E, and 32H with bus-attached disk drives, connect power connector
P3 to the system planar.
3. Set the power switch on the system unit to On. Wait 10 seconds before answering the
following question.
Did the power-on light come on and stay on?
NO
YES
Step 10
(from Step 9)
1. Set the power switch on the system unit to Off.
2. For Models 340, 34H, 350, 355, 360/36T, 365, 370/37T, and 375, 380, 390, 39H, 397,
and models 320, 32E, and 32H with SCSI-attached disk drives,connect power
connector P4 to the front disk drive.
For Models 320, 32E, and 32H with bus-attached disk drives, connect power connector
P4 to the system planar.
3. Set the power switch on the system unit to On. Wait 10 seconds before answering the
following question.
Did the power-on light come on and stay on?
NO
YES
2-1520-6
Installation and Service Guide
Exchange the rear disk drive. Go to "Map 0410: Repair Checkout" in the
Diagnostic Information For Micro Channel Bus Systems .
Go to Step 10.
Exchange the front disk drive. Go to "Map 0410: Repair Checkout" in the
Diagnostic Information For Micro Channel Bus Systems .
Go to Step 11.