Lenovo ThinkCentre M92z Hardware Maintenance Manual - ThinkCentre M92z (type 3 - Page 126

Replacing the power switch and control button board

Page 126 highlights

5. Remove the screw and disconnect the multi-touch cables from the multi-touch board to disengage the multi-touch board from the chassis. Figure 51. Removing the multi-touch board 6. Connect the multi-touch cables to the new multi-touch board. 7. Align the screw hole in the new multi-touch board with the corresponding one in the chassis. Then, install the screw to secure the new multi-touch board to the chassis. What to do next: • To work with another piece of hardware, go to the appropriate section. • To complete the installation or replacement, go to "Completing the parts replacement" on page 127. Replacing the power switch and control button board Attention: Do not open your computer or attempt any repair before reading and understanding "Important Safety Information" on page 1. This section provides instructions on how to replace the power switch and control button board. To replace the power switch and control button board, 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 83. 122 ThinkCentre Hardware Maintenance Manual

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5. Remove the screw and disconnect the multi-touch cables from the multi-touch board to disengage the
multi-touch board from the chassis.
Figure 51. Removing the multi-touch board
6. Connect the multi-touch cables to the new multi-touch board.
7. Align the screw hole in the new multi-touch board with the corresponding one in the chassis. Then,
install the screw to secure the new multi-touch board to the chassis.
What to do next:
To work with another piece of hardware, go to the appropriate section.
To complete the installation or replacement, go to “Completing the parts replacement” on page 127.
Replacing the power switch and control button board
Attention:
Do not open your computer or attempt any repair before reading and understanding “Important Safety Information”
on page 1.
This section provides instructions on how to replace the power switch and control button board.
To replace the power switch and control button board, 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 83.
122
ThinkCentre Hardware Maintenance Manual