Replacing The Internal Speaker - Lenovo ThinkCentre M90 Hardware Maintenance Manual

Figure 62. Installing the optical drive retainer
7. Slide the new optical drive into the drive bay until it snaps into position.
Figure 63. Installing a new optical drive
8. Connect the signal cable and the power cable to the rear of the optical drive.
9. Go to "Completing the parts replacement" on page 98.

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. Open the computer cover. See "Opening the computer cover" on page 102.
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Chapter 9 Replacing FRUs (Machine types: 3026, 3039, 3137, 3149, 3245, 3269, 3319, 3394, 3491, 3627, 3699, 3878,
4972, 5132, 5261, 5297, 5391, 5472, 5485, 5536, 5548, 5567, 5864, and 6213.)
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