Service manual

Power Cabinet Component Removal and Replacement 5-23
Removal
1. Open the front door of the power cabinet or expander cabinet depending
upon where the target power supply is located.
2. Identify the broken power supply by noticing which of the two has its Power
OK LED off.
3. Unplug the power supply.
4. Wait for the Vaux OK LED to go off and the Swap OK LED to come on.
5. Loosen the four captive fasteners holding the faceplate of the power supply
to the box.
6. Grasp the power supply handle and firmly pull it from the box.
Replacement
1. Replace the power supply and tighten the four captive screws. Do not plug
in the AC yet.
2. Wait for the Swap OK LED to light and then attach the power cord.
3. Wait for the Vaux OK LED and Power OK LED to light and the Swap OK
LED to go off.
Verification
If the replacement procedure succeeds, verification is accomplished.