IBM RS/6000 SP, Maintenance Information

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MAP 0390: Supervisor Power Problem
007
– Isolate ac short between line filter and circuit breaker input using Figure 1-21 on
page 1-228 as a reference.
– Replace parts as required.
– Go to Step 051 on page 1-236 to verify fix.
008
– Go to Step 010
009
– Go to Step 017 on page 1-231
010
– Repeat the ac voltage test from Step 001 on page 1-229.
Is ac present and within 180-254 V ac?
Yes No
011
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 (and high-voltage transformer, if present).
– Have customer check the ac voltage at the customer's receptacle or other power connection for
ac voltage within 180-254 V ac.
Is customer's ac present and within 180-254 V ac?
Yes No
012
Problem with customer ac power.
– Have customer correct problem.
– Go to “MAP 0570: End of Call” on page 1-357.
013
– With power removed, replace the ac line cord.
– Go to Step 049 on page 1-236 to verify fix.
014
ac voltage present at frame input.
(Step 014 continues)
1-230
RS/6000 SP MAPs