Lenovo ThinkStation C20, Руководство по техническому обслуживанию аппаратной части

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Figure 38. Installing the rear fan assembly
10. Connect the rear fan assembly cable to the appropriate rear fan connector on the system board. See
“Locating parts and connectors on the system board” on page 71.
11. To complete the installation or replacement, go to “Completing the parts replacement” on page 110.
Replacing the internal speaker
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the
ThinkStation Safety and Warranty Guide that came with your computer. To obtain a copy
of the ThinkStation 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, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 74.
3. Remove the front bezel. See “Removing and reinstalling the front bezel” on page 75.
4. Remove the PCI card holder. See “Removing and reinstalling the PCI card holder” on page 76.
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ThinkStation Hardware Maintenance Manual