Dell Inspiron 3200 Service Manual - Page 79

Touch-Pad Assembly, Touch-Pad Assembly Removal

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Touch-Pad Assembly palmrest assembly touch-pad buttons (2) touch-pad button board (screw H7 is 5 mm) touch pad 5 mm touch-pad cable H7 Figure 4-27. Touch-Pad Assembly Removal To remove the touch-pad assembly, follow these steps: 1. Remove the palmrest assembly. 2. Remove the hard-disk drive heat sink. 3. Remove touch-pad button screw H7. This screw holds the touch-pad button board in place. 4. Disconnect the touch-pad cable from touch-pad button connector JP1. This is a ZIF connector on the touch-pad board. See "ZIF Connectors" found earlier in this chapter. 5. Remove the touch pad from the computer. The touch pad and touch-pad board are held in place by a flange. 6. Remove the touch-pad button board from the touch-pad buttons. The board is held in place by two tabs. Rotate the board from under the tabs. 7. Disconnect the touch-pad cable from connector JP2 on the touch-pad button board. This is a pressure-fit cable. Reconnect the cable before reinstalling the board. 8. Remove the touch-pad button board from the computer. The touch-pad buttons are heat-staked into the palmrest assembly and are not removable. Removing and Replacing Parts 4-43

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Removing and Replacing Parts
4-43
Touch-Pad Assembly
Figure 4-27.
Touch-Pad Assembly Removal
To remove the touch-pad assembly, follow these steps:
1.
Remove the palmrest assembly.
2.
Remove the hard-disk drive heat sink.
3.
Remove touch-pad button screw H7.
This screw holds the touch-pad button board in place.
4.
Disconnect the touch-pad cable from touch-pad button connector JP1.
This is a ZIF connector on the touch-pad board. See “ZIF Connectors”
found earlier in this chapter.
5.
Remove the touch pad from the computer.
The touch pad and touch-pad board are held in place by a flange.
6.
Remove the touch-pad button board from the touch-pad buttons.
The board is held in place by two tabs. Rotate the board from under the tabs.
7.
Disconnect the touch-pad cable from connector JP2 on the touch-pad button
board.
This is a pressure-fit cable. Reconnect the cable before reinstalling the
board.
8.
Remove the touch-pad button board from the computer.
The touch-pad buttons are heat-staked into the palmrest assembly and are
not removable.
(screw H7 is
5 mm)
H7
touch-pad
button board
touch pad
touch-pad cable
palmrest assembly
5 mm
touch-pad buttons (2)