Lenovo ThinkCentre 3379, Hardware Maintenance Manual

Page: 126 / 758

3. Note the cable routing and disconnect the front audio and USB assembly cables
from the system board. See “Locating parts on the system board” on page 89.
4.
Remove the screw that secures the front audio and USB assembly to the
chassis, and then remove the front audio and USB assembly.
5.
Install the new front audio and USB assembly into the chassis and secure it
with the screw.
6. Connect the new front audio and USB assembly cables to the system board. See
“Locating parts on the system board” on page 89.
7. Route the cables for the new front audio and USB assembly in the chassis.
8. Reinstall the front bezel.
9. Go to “Completing the FRU replacement” on page 122.
Replacing the internal speaker
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 replace the internal speaker.
To replace the internal speaker:
1. Remove the computer cover. See “Removing the computer cover” on page 86.
2. Locate the internal speaker connector on the system board. See “Locating parts
on the system board” on page 89.
3.
Disconnect the internal speaker cable from the system board.
Figure 33. Removing the front audio and USB assembly
120
Hardware Maintenance Manual