IBM pSeries 670 Service Manual page 176

Step 1525-5
Note: Be sure you are working on the side of the BPA (A or B) referenced by the error code that sent you
to this MAP. FRUs on the operating side of the BPA (with BPC GOOD LED on) must not be
disturbed during this procedure.
1. Turn all the BPR on/off switches on this BPA to the off position (to the right).
2. Unplug the BPD to be checked and carefully pull it approximately 25 mm (1 inch) away from the
backplane without unplugging any cables.
If there is more than one BPD left to be checked, start with the uppermost unchecked BPD and make
a note of which BPD you unplugged.
3. Set all the BPR on/off switches on this BPA to the on position (to the left).
Does the BPC GOOD LED on the BPC come on and stay on?
NO Replug the BPD and continue with "Step 1525-3" on page 155.
YES Replace the BPD that is currently unplugged. Follow all steps in the removal and replacement
procedures for "Bulk Power Distributor (BPD)" on page 785. Go to "Step 1525-6".
Step 1525-6
Is the error code that sent you to this MAP still reported?
The problem has been corrected. Go to "MAP 0410: Repair Checkout" in the RS/6000 and
NO
Eserver pSeries Diagnostic Information for Multiple Bus Systems.
YES If the error code that directed you to this map was 1011 8710 or 1011 8711, then return to the
"SPCN Error Codes" on page 352 table and take the next action defined in the table for these
error codes.
If the error code that directed you to this map was neither 1011 8710 nor 1011 8711, then call
support.
Step 1525-7
Inform the customer that the line voltage into the BPA is missing or is too low and must be checked.
Can the line voltage be checked now?
NO Defer this repair until the customer's utility can check the line voltage.
YES Go to "Step 1525-8".
Step 1525-8
Does the customer utility voltage checkout OK?
NO The customer must restore utility voltage.
YES Exchange the power cord and go to "Step 1525-9".
Step 1525-9
Press the service complete button.
Is the error code that sent you to this MAP reported?
The problem has been corrected. Go to "MAP 0410: Repair Checkout" in the RS/6000 and
NO
Eserver pSeries Diagnostic Information for Multiple Bus Systems.
YES Call for support.
156 Eserver pSeries 670 Service Guide