Lenovo ThinkCentre 7570, Руководство по техническому обслуживанию аппаратной части

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Figure 37. Removing the rear I/O assembly cover
6. To reinstall the rear I/O assembly, position the new rear I/O assembly into place, and then align the
screw holes with corresponding holes in the computer main bracket. Install the four screws to secure
the rear I/O assembly.
7. Go to “Completing the parts replacement” on page 113.
Replacing the power switch module
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 power switch module.
To replace the power switch module, 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. Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay
it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 73.
4. Locate the power switch module in the computer. See “FRU locations” on page 69.
Chapter 8
.
Replacing FRUs
105