MAP 1529: There Is A Bulk Power Assembly (BPA) Communication
Failure
Step 1529-1
Check the position of the on/off switch on the BPRs.
Is the switch in the ON position (to the left)?
NO
Set the switch to the ON position (to the left), and go to
″
MAP 0410: Repair Checkout
″
in the
RS/6000 and
Eserver
pSeries Diagnostic Information for Multiple Bus Systems
.
YES
Go to “Step 1529-2”.
Step 1529-2
Note:
Read the Danger and Caution notices under “Safety Notices” on page xi before continuing with this
procedure.
1.
Prepare a multimeter to measure up to 600 V ac.
2. Use the multimeter to measure the ac voltage at the following test points on the face plate of the BPA
that is not referenced by the error code that sent you to this MAP:
v
Phase A and phase B
v
Phase B and phase C
v
Phase C and phase A
Are all the readings greater than 180 V ac?
NO
Go to “Step 1529-3” on page 164.
YES
Exchange the following FRUs one at a time:
1. BPR 1, that is connected to the IBF not referenced in the error code that brought you to this
MAP. Follow all steps in the removal and replacement procedures for “Bulk Power Regulator
(BPR)” on page 783.
2. BPR 2, that is connected to the IBF not referenced in the error code that brought you to this
MAP. Follow all steps in the removal and replacement procedures for “Bulk Power Regulator
(BPR)” on page 783.
3. BPR 3, that is connected to the IBF not referenced in the error code that brought you to this
MAP. Follow all steps in the removal and replacement procedures for “Bulk Power Regulator
(BPR)” on page 783.
4. BPC on the other side not referenced by the error code that sent you to this MAP. Follow all
steps in the removal and replacement procedures for “Bulk Power Controller (BPC)” on
page 784.
5. BPE on the other side not referenced by the error code that sent you to this MAP. Follow all
steps in the removal and replacement procedures for “Bulk Power Enclosure (BPE)” on
page 787.
After each FRU is exchanged, is the error code that sent you to this MAP still reported?
NO
The problem has been corrected. Go to
″
MAP 0410: Repair Checkout
″
in the
RS/6000 and
Eserver
pSeries Diagnostic Information for Multiple Bus Systems
YES
Replace the next FRU on the list. If all FRUs on the list have been replaced, call for
support.
Chapter 3. Maintenance Analysis Procedures
163
Summary of Contents for pSeries 670
Page 1: ...pSeries 670 Service Guide SA38 0615 03 ERserver...
Page 2: ......
Page 3: ...pSeries 670 Service Guide SA38 0615 03 ERserver...
Page 12: ...x Eserver pSeries 670 Service Guide...
Page 16: ...xiv Eserver pSeries 670 Service Guide...
Page 18: ...xvi Eserver pSeries 670 Service Guide...
Page 324: ...Yes Go to Step 154A 14 on page 302 304 Eserver pSeries 670 Service Guide...
Page 718: ...698 Eserver pSeries 670 Service Guide...
Page 848: ...L3 Cache Shorts Test Step 4 828 Eserver pSeries 670 Service Guide...
Page 849: ...L3 Cache Shorts Test Step 5 Chapter 9 Removal and Replacement Procedures 829...
Page 851: ...L3 Cache Shorts Test Step 2 Chapter 9 Removal and Replacement Procedures 831...
Page 853: ...L3 Cache Shorts Test Step 4 Chapter 9 Removal and Replacement Procedures 833...
Page 854: ...L3 Cache Shorts Test Step 5 834 Eserver pSeries 670 Service Guide...
Page 971: ...7040 Model 671 Media Subsystem 1 2 3 4 5 6 7 8 9 10 Chapter 10 Parts Information 951...
Page 973: ...Power and SCSI Cables to the Media Subsystem 1 2 3 5 4 6 Chapter 10 Parts Information 953...
Page 986: ...966 Eserver pSeries 670 Service Guide...
Page 990: ...970 Eserver pSeries 670 Service Guide...
Page 1018: ...998 Eserver pSeries 670 Service Guide...
Page 1020: ...1000 Eserver pSeries 670 Service Guide...
Page 1028: ...1008 Eserver pSeries 670 Service Guide...
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