Replacing The Power Switch Unit - Lenovo ThinkCentre M83 Hardware Maintenance Manual

11. Connect the new power supply assembly cables to all drives and the system board. See "Locating
parts on the system board" on page 82.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 234.

Replacing the power switch unit

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Safety information" on page 1.
This section provides instructions on how to replace the power switch unit.
To replace the power switch unit, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See "Removing the computer cover" on page 159.
3. Remove the front bezel. See "Removing and reinstalling the front bezel" on page 160.
4. Press the retaining clip
same time.
Figure 150. Pivoting the drive bay assembly upward
Chapter 9
1 in the direction as shown and pivot the drive bay assembly upward at the
.
Replacing FRUs (machine types: 10A2, 10A3, 10A8, 10A9, 10AH, 10AJ, 10AM, and 10AN)
189