Lenovo ThinkCentre A57e - Manual (Page 42)

Replacing the front audio and USB assembly
Attention
Do not open your computer or attempt any repair before reading the “Important safety
information” in the ThinkCentre Safety and Warranty Guide that came with your computer.
To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to:
http://www.lenovo.com/support
This procedure describes how to replace the front audio and USB assembly.
1. Remove the computer cover. See “Removing the cover” on page 11.
2. Remove the front bezel. See “Removing and installing the front bezel” on
page 13.
3. Disconnect the front audio and USB assembly cables from the system board.
See “Identifying parts on the system board” on page 9.
4. Note the front audio and USB assembly cables routing and remove the screw
that secures the assembly to the chassis.
5. Remove the front audio and USB assembly.
6. Route the cables for the new front audio and USB assembly through the hole
in the chassis and to the system board.
7. Install the front audio and USB assembly into the chassis and secure it with
the screw.
8. Connect the front audio and USB assembly cables to the system board.
9. Reinstall the front bezel.
10. Go to Chapter 4, “Completing the parts replacement,” on page 37.
Figure 30. Removing the front audio and USB assembly
34 Hardware Installation and Replacement Guide