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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 76).
2. Remove the access panel (
Computer Access Panel on page 129).
3. Remove the front bezel (
Front Bezel on page 130).
4. Remove the front fan (
Front Fan Assembly on page 153).
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 7-30 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.
156 Chapter 7 Removal and Replacement Procedures – Microtower (MT) Chassis