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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” in the ThinkCentre Safety and Warranty Guide that came with
your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide,goto:
http://www.lenovo.com/support
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. Remove the computer cover. See “Removing the computer cover” on page 14.
3. Remove the front bezel. See “Removing and reinstalling the front bezel” on
page 15.
4. Disconnect the front audio and USB assembly cables from the system board.
See “Locating parts on the system board” on page 11.
5. Note the front audio and USB assembly cable routing and remove the screw
that secures the front audio and USB assembly. Then, remove the front audio
and USB assembly from the chassis.
6. Route the cables of the new front audio and USB assembly through the hole
in the chassis.
7. Position the new front audio and USB assembly to the chassis so that the
screw hole in the new front audio and USB assembly is aligned with the
corresponding hole in the chassis.
8. Install the screw to secure the new front audio and USB assembly in place.
9. Connect the new front audio and USB assembly cables to the system board.
See “Locating parts on the system board” on page 11.
Figure 28. Removing the front audio and USB assembly
34 User Guide