
MAP 0400: Supervisor Power 12 Volts DC Problem
DANGER
High voltage present. Perform “Lockout/Tagout Procedure for PDU” on page 1-2
or “Lockout/Bagout Procedure for PDU” on page 1-3 to remove primary power
to the frame.
– Open Power Distribution Unit dc section.
– Replace connector card.
– Go to Step 044 on page 1-242 to verify fix.
012
Power problem resolved.
– Go to “MAP 0570: End of Call” on page 1-357.
013
– Go to Step 014
014
Short in 12 V dc distribution.
– Disconnect supervisor harnesses PDU-BH-P7 and PDU-BH-P8 from the Power Distribution Unit.
– Check for short between connector card PDU-FC-J402 pin 1 and pin 2.
Does short disappear with both cables removed?
Yes No
015
– Disconnect supervisor tailgate cables at connector card PDU-FC-J406 and PDU-FC-J408, then
check for short between connector card PDU-FC-J402 pin 1 and pin 2.
Does short disappear with both cables removed?
Yes No
016
Short in frame supervisor card cage.
– Unscrew connector card faceplate and unseat connector card from backplane card.
– Check for short between connector card PDU-FC-J402 pin 1 and pin 2.
Has short disappeared?
Yes No
017
– Replace connector card.
– Go to Step 043 on page 1-242.
018
– Reseat connector card.
– Unscrew frame supervisor card faceplate and unseat frame supervisor card from backplane
card.
– Check for short between connector card PDU-FC-J402 pin 1 and pin 2.
(Step 018 continues)
Chapter 1. Maintenance Analysis Procedures (MAPs)
1-239
Содержание RS/6000 SP
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Страница 60: ...MAP 0130 Processor Node Figure 1 7 Thin Node High Level Diagram 1 40 RS 6000 SP MAPs...
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