Lenovo ThinkStation 2551, Hardware Maintenance Manual, Page: 169 / 188

Replacing the power switch
Attention:
Do not open your computer or attempt any repair before reading and understanding “Important Safety Information”
on page 1.
This section provides instructions on how to replace the power switch.
To replace the power switch, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Open the computer cover. See “Opening the computer cover” on page 122.
3. Remove the front bezel. See “Removing and reinstalling the front bezel” on page 122.
4. Locate the power switch. See “Locating major FRUs and CRUs” on page 81.
5. Pivot the optical drive upward and disconnect the power switch cable from the power switch connector
on the system board. See “Locating parts on the system board” on page 84.
6. Push the power switch inward through the hole to disengage it from the chassis.
Figure 100. Removing the power switch
Chapter 11
.
Replacing FRUs (for machine types: 3688, 3690, 3691, 3693, and 3695)
163