Dell Vostro 3480 Service Manual page 50

3 Open the latch and disconnect the touch pad cable from the system board [1].
4 Peel the tape that secures the touch pad to the palmrest and keyboard assembly [2].
5 Remove the four (M2x2) screws that secure the touch pad to the palmrest and keyboard assembly [1].
6 Lift the touch pad off the palmrest and keyboard assembly [2].
50 Removing and installing components