Replacing The Front Audio And Usb Assembly - Lenovo ThinkCentre M77 2227 SFF User Manual

13. Reconnect all cables that were disconnected from the system board.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the replacement, go to "Completing the parts replacement" on page 64.

Replacing the front audio and USB assembly

Attention: Do not open your computer or attempt any repair before reading and understanding the "Important
safety information" on page v.
This section provides instructions on how to replace the front audio and USB assembly.
To replace the front audio and USB assembly, 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. Open the computer cover. See "Opening the computer cover" on page 28.
3. Remove the front bezel. See "Removing and reinstalling the front bezel" on page 28.
4. Pivot the optical drive bay upward and disconnect the front audio and USB assembly cables from the
system board and note the cables routing. See "Locating parts on the system board" on page 11.
5. Remove the screw that secures the front audio and USB assembly bracket. Then remove the front
audio and USB assembly bracket from the chassis.
Figure 42. Removing the front audio and USB assembly
6. Remove the two screws that secure the front audio and USB assembly to its bracket. Then remove the
failing front audio and USB assembly from the bracket.
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ThinkCentre User Guide