HP Pavilion dv4200 Maintenance And Service Manual page 180

Removal and Replacement Procedures
21. Release the ZIF connector to which the TouchPad cable is
attached and disconnect the cable 1 from the system board.
22. Remove the 2 Phillips PM2.0×4.0 screws 2 that secure the
system board to the top cover.
Removing the System Board Screws, Part 1,
Compaq Presario V4200 and HP Compaq nx7220 Models
5–74 Maintenance and Service Guide