4535 611 98931 iE33 Service Manual Page 238
CSIP Level 1 Troubleshooting: Troubleshooting Procedure
Any condition causing the power supplies to shut down (over-voltage or over-current) requires
the AC breaker to be turned off (or the power cord disconnected) for a minimum of one
minute. That allows capacitors within the supply to drain, removing the internal fault latch volt-
age.
When troubleshooting the power supplies, disconnect P1 (24-pin) and P3 (8-pin) connectors (of
cable 453561182601) at the motherboards instead of removing the connection at the Power
Distribution Board. Removing this cable end allows remote sense signal lines to remain
connected to the power supply output and allows the Platform supply to provide proper voltage
regulation. Power cables may be disconnected from one or both motherboards for
troubleshooting purposes.
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