Replacing The Illuminated Red Dot - Lenovo ThinkCentre M920t User Manual And Hardware Maintenance Manual

Figure 30. Installing the front fan
7. Connect the new front fan cable to the system board.
8. Reinstall the removed parts. To complete the replacement, see "Completing the parts replacement" on
page 68.

Replacing the illuminated red dot

Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See "Removing the computer cover" on page 17.
3. Remove the front bezel. See "Replacing the front bezel" on page 18.
4. Pivot the drive bay assembly upward. See "Pivoting the drive bay assembly upward and downward" on
page 19.
5. Disconnect the illuminated red dot cable from the system board.
6. Replace the illuminated red dot.
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M920t User Guide and Hardware Maintenance Manual