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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 29. 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 computer 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 "System
board part and connector locations" on page 13.
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 ExpressCard
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 ExpressCard.
Note: The ExpressCard is available only in some models.
To replace the ExpressCard, do the following:
Chapter 2. Installing or replacing hardware
41
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