Lenovo ThinkCentre M92z Hardware Maintenance Manual - ThinkCentre M92z (type 3 - Page 109

Replacing the Bluetooth module

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Note: You might have to remove the handle bar to access the ambient light sensor. To remove the handle bar, see "Removing and reinstalling the handle bar" on page 84. 5. Carefully remove the two screws 1 that secure the ambient light sensor and then lift the ambient light sensor out of the computer. Figure 34. Removing the ambient light sensor 6. Disconnect the ambient light sensor cable from the system board. 7. Align the screw holes in the new ambient light sensor with the corresponding holes in the front bezel and then install the two screws to secure the ambient light sensor. 8. Connect the new ambient light sensor cable to the system board. See "Locating parts on the system board" on page 79. 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 Bluetooth module 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 Bluetooth module. Note: The Bluetooth module is available only in some models. To replace the Bluetooth 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. Chapter 9. Replacing FRUs 105

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Note:
You might have to remove the handle bar to access the ambient light sensor. To remove the
handle bar, see “Removing and reinstalling the handle bar” on page 84.
5. Carefully remove the two screws
1
that secure the ambient light sensor and then lift the ambient light
sensor out of the computer.
Figure 34. Removing the ambient light sensor
6. Disconnect the ambient light sensor cable from the system board.
7. Align the screw holes in the new ambient light sensor with the corresponding holes in the front bezel
and then install the two screws to secure the ambient light sensor.
8. Connect the new ambient light sensor cable to the system board. See “Locating parts on the system
board” on page 79.
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 Bluetooth module
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 Bluetooth module.
Note:
The Bluetooth module is available only in some models.
To replace the Bluetooth 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.
Chapter 9
.
Replacing FRUs
105