Compaq 320, 321, 420, 421, 620 and 621 Notebook PC and HP 420 and 620 Notebook PC

3.
Remove the single screw (1) that secures the TouchPad board to the palm rest and lift the
TouchPad board (2) from the palm rest.
Reverse this procedure to install the TouchPad board.
Reverse this procedure to install the palm rest.
Component replacement procedures
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