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8. Replace the front bezel.
9. Go to "Completing the FRU replacement" on page 113.
Replacing the front audio/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, go to:http://www.lenovo.com/support
This section provides information on how to remove and replace the front audio/USB assembly.
To remove or replace the front audio/USB assembly, do the following:
1. Remove the computer cover. See "Removing the cover" on page 68.
2. Remove the front bezel. See "Removing and replacing the front bezel" on page 71
3. Disconnect the front audio/USB assembly cable from the system board. See "Locating parts on the
system board" on page 71.
4. Note the front audio/USB assembly cable routing and remove the screw that secures the assembly to
the chassis.
5. Remove the front audio/USB assembly.
6. Route the cable for the new front audio/USB assembly through the hole in the chassis and to the system
board.
7. Install the front audio/USB assembly into the chassis and secure it with the screw.
8. Connect the front audio/USB assembly cable to the system board.
9. Reinstall the front bezel.
10.Go to "Completing the FRU replacement" on page 91.
Replacing the power switch/LED 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, go to:http://www.lenovo.com/support
This section provides information on how to remove and replace the power switch/LED assembly.
To remove or replace the power switch/LED assembly, do the following:
1. Remove the computer cover. See "Removing the cover" on page 68.
2. Remove the front bezel. See "Removing and replacing the front bezel" on page 71
3. Disconnect the power switch/LED assembly cable from the system board. See "Locating parts on the
system board" on page 71.
4. Note the power switch/LED assembly cable routing and the position of the two LEDs.
5. Remove the switch and the LEDs from the bezel.
6. Route the cable for the new power switch/LED assembly through the hole in the chassis and to the
system board.
7. Install the new power switch/LED assembly into the bezel. Make sure that the LEDs are in the correct
position.
8. Connect the power switch/LED cable to the system board.
Chapter 8 Replacing FRUs (Types 7061, 7090, 9353, 9421, 9485, 9623, 9625, 9705, 9786, 9795, 9935, 9946, 9953) 89