Acer Aspire 2420 Service Manual page 89

13. See "Separating the Upper Case from the Lower Case" on page 74.
14. Disconnect the touch pad cable from the touch pad board.
15. Carefully pry loose and remove the touch pad board.
WARNING:The touchpad board is glued to the upper case, only remove the touchpad board if it is defective.
Chapter 3 79