Lenovo 0870A6U, Руководство пользователя, Страница: 60 / 100

8. Install the three screws to secure the right I/O assembly to the computer main
bracket.
9.
Connect the right I/O assembly cable and the intrusion switch cable to the new
right I/O assembly.
What to do next:
v To work with another piece of hardware, go to the appropriate section.
v
To complete the installation or replacement, go to “Completing the parts
replacement” on page 55.
Replacing the power supply
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 supply.
To replace the power supply, 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 16.
4. Disconnect the power supply cable from the system board. See “System board
part and connector locations” on page 13.
5. Remove the hard disk drive. See “Replacing the hard disk drive” on page 26.
6.
Remove the rear I/O assembly cover. See “Removing or reinstalling the rear
I/O assembly cover” on page 20.
52
User Guide