Lenovo ThinkCentre M725s, User Manual And Hardware Maintenance Manual

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Figure 46. Installing the illuminated red dot cover
7. Connect the new illuminated red dot cable to the system board.
8. Pivot the drive bay assembly downward and reinstall the removed parts. To complete the replacement,
see “Completing the parts replacement” on page 60.
Replacing the internal speaker
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide .
1. Remove external options. See “Replacing external options” on page 14.
2. Remove the computer cover. See “Removing the computer cover” on page 16.
3. Remove the front bezel. See “Replacing the front bezel” on page 17.
4. Disconnect the internal speaker cable from the system board.
5. Replace the internal speaker.
Figure 47. Pressing the tab
Chapter 4
.
Replacing hardware
33