User's Manual

Power Switch/LED Assembly
Description Spare part number
Power switch/LED assembly 646828-001
1. Prepare the computer for disassembly (Preparation for Disassembly on page 51).
2. Remove the access panel (
Computer Access Panel on page 52).
3. Remove the front bezel (
Front Bezel on page 53).
4. Remove the front fan (
Front Fan Assembly on page 76).
5. Disconnect the cable from the system board connector labeled PB/LED.
6. With the computer on its side, press on the tabs on the bottom of the assembly (1) to disengage
the assembly from the chassis, and then rotate the bottom of the assembly upward (2) to
remove it from the chassis.
Figure 6-30 Removing the power switch/LED
7. Pull the assembly away from the chassis while threading the cable through the hole in front of
the chassis.
Power Switch/LED Assembly 79