Lenovo ThinkCentre, Hardware Maintenance Manual

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8. Align the four tabs on the bottom of the new internal speaker with the
corresponding holes in the chassis, and push the new internal speaker straight
down until it snaps into position.
9. Reconnect the internal speaker cable and the thermal sensor cable to the
system board.
10. Go to “Completing the FRU replacement” on page 154.
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 instructions on how to remove and replace the power
switch/LED assembly.
1. Open the computer cover. See “Opening the cover” on page 127.
2. Remove the front bezel.
3.
Disconnect the power switch/LED assembly cable from the system
board.“System board connectors” on page 126
4. Remove the screw that secures the power switch/LED assembly to the chassis.
5.
Remove the power switch/LED assembly from the chassis.
6. Install the power switch/LED assembly into the chassis and secure the
assembly with the screw.
Chapter 9. Replacing FRUs - 607 computers
149