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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 60.
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. Remove the computer cover. See “Removing the computer cover” on page 32.
3. Remove the front bezel. See “Removing and reinstalling the front bezel” on page 32.
4. Pivot the drive bay assembly 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 41. 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.
7. Install a new front audio and USB assembly into the bracket and install the two screws to secure the
front audio and USB assembly to the bracket.
8. Install the front audio and USB assembly bracket to the chassis and align the screw hole in the bracket
with the corresponding hole in the chassis.
9. Install the screw to secure the front audio and USB assembly bracket to the chassis.
10. Pivot the drive bay assembly upward and reconnect the front USB and front audio cables to the system
board. See “Locating parts on the system board” on page 11
.
56 ThinkCentre User Guide