3Com S26x, S27x, S24x installation manual Removing/Replacing Power Supply

Removing/Replacing Power Supply

Removing/Replacing Power Supply

Introduction This section describes how to remove the power supply.

Remove the Power Perform these steps to remove the power supply:

Supply

Step Action

1Verify that the power is OFF by disconnecting the power cord.

2Remove the top cover (refer to Figure 4-1).

3At the rear of the unit, remove the four screws attaching the power supply to the back of the chassis (Figure 4-3).

4Disconnect the power supply cables (P1 and P2) from the motherboard.

5• Remove the two internal screws on the fan assembly.

•Slide the power supply to the front to clear the lip of the chassis.

•Slide it out and away from the unit.

Replace the Power To replace the power supply, reverse the steps just detailed in “Remove the Power

Supply	Supply.” Cables are keyed to aid in reassembly.
	To replace the DC power supply, reverse the steps detailed “Removing/Replacing
	Power Supply” section on page 4-7to Step 2. Instead of performing Step 1, verify
	that incoming power is disconnected with a volt meter then connect the appropriate
	terminal block locations.

Maintenance 4-7