Touchpad board
Description Spare part number
Touchpad board 821171-001
Before removing the touchpad board, follow these steps:
1. Shut down the computer.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet, and
then unplugging the AC adapter from the computer.
4. Remove the bottom cover (see Bottom cover on page 25).
5. Remove the battery (see Battery on page 30).
6. Remove the keyboard (see Keyboard on page 39).
7. Remove the internal base plate (see Internal base plate on page 42
Remove the touchpad board:
1. Disconnect the cable from the touchpad to the smart card reader board (1).
2. Lift the tape (2), and then remove the 2 Phillips M2.5x2.5 screws (3) that secure the touchpad button
board to the computer.
3. Lift the top of the touchpad board up, and then pull it forward to remove it from the computer (4).
Reverse this procedure to install the touchpad board.
Component replacement procedures 47
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