Replacing The Power Button Board - Lenovo ThinkCentre M700 Hardware Maintenance Manual

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10. Insert the metallic tabs
the chassis. Then, align the hole in the front audio and USB 3.0 assembly with the corresponding screw
hole in the chassis and install the screw to secure the assembly.
Figure 48. Installing the front audio and USB 3.0 assembly
11. Pivot the drive bay assembly downward. See "Pivoting the drive bay assembly upward and downward"
on page 93.
12. Reinstall the optical drive. See "Replacing the optical drive" on page 91.
13. Reinstall the front bezel. See "Replacing the front bezel" on page 88.
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 129.

Replacing the power button board

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Read this first: Important safety information" on page 1.
To replace the power button board, do the following:
1. Remove any media from the drives and turn off all connected 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 88.
3. Remove the front bezel. See "Replacing the front bezel" on page 88.
4. Remove the optical drive. See "Replacing the optical drive" on page 91.
5. Pivot the drive bay assembly upward. See "Pivoting the drive bay assembly upward and downward"
on page 93.
6. Locate the power button board. See "Computer components" on page 32.
7. Disconnect the power button board cable from the system board.
1
on the new front audio and USB 3.0 assembly into the corresponding hole in
.
Chapter 9
Installing or replacing hardware
111

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