Service manual

Removal and Replacement 7-65
Removal
1. Remove the cabinet fan tray.
2. Disconnect the power harness from the fan fail detect module and each fan.
3. Remove the power supply cover. It is held in place by two screws that go
through the AC bulkhead spot welded to the tray weldment.
4. Remove the power harness from the tray by disconnecting it from the power
supply.
5. Disconnect the neutral and load leads from the power supply.
6. Remove the four screws holding the power supply to the tray. Keep track of the
standoffs that provide space between the power supply and weldment. You will
need them during replacement.
Replacement
1. Reverse the steps in the Removal procedure.
2. Place the fan tray back in the cabinet.
Verification
Power up the system. If the green power LED comes on, and the fan LED is off, the
cabinet fan tray power supply is verified.