Lenovo ThinkCentre M92z (English) User Guide - Page 74

Replacing the ambient light sensor

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Figure 39. Removing the WI-FI card 8. Insert the notched end of the new WI-FI card into the mini PCI Express x1 card slot. Press the new WI-FI card firmly and then pivot the WI-FI card to align the screw hole in the new WI-FI card with the one in the system board. 9. Install the screw to secure the new WI-FI card to the system board. 10. Connect the two cables to the new WI-FI card. 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 73. Replacing the ambient light sensor Attention: Do not open your computer or attempt any repair before reading and understanding "Important safety information" on page v. This section provides instructions on how to replace the ambient light sensor. Note: The ambient light sensor is available only in some models. To replace the ambient light sensor, 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 41. 4. Locate the ambient light sensor. See "Locating components" on page 13. 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 43. 62 ThinkCentre User Guide

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Figure 39. Removing the WI-FI card
8. Insert the notched end of the new WI-FI card into the mini PCI Express x1 card slot. Press the new
WI-FI card firmly and then pivot the WI-FI card to align the screw hole in the new WI-FI card with
the one in the system board.
9. Install the screw to secure the new WI-FI card to the system board.
10. Connect the two cables to the new WI-FI card.
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 73.
Replacing the ambient light sensor
Attention:
Do not open your computer or attempt any repair before reading and understanding “Important safety information”
on page v.
This section provides instructions on how to replace the ambient light sensor.
Note:
The ambient light sensor is available only in some models.
To replace the ambient light sensor, 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 41.
4. Locate the ambient light sensor. See “Locating components” on page 13.
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 43.
62
ThinkCentre User Guide