Download Lenovo ThinkCentre M90

What to do next:
v To work with another piece of hardware, go to the appropriate section.
v To complete the installation or replacement, go to “Completing the parts
replacement” on page 43.
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.
Note: Not all computers have the internal speaker.
To replace the internal speaker, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See “Removing the computer cover” on page 14.
3. Locate the internal speaker connector on the system board. See “Locating parts
on the system board” on page 11.
4. Disconnect the internal speaker cable from the system board.
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User Guide