HP Pavilion dv4200 Maintenance And Service Manual page 192

Removal and Replacement Procedures
7. Remove the 2 Phillips PM2.0×4.0 screws 1 that secure the
USB board to the frame.
8. Remove the 2 Phillips PM2.5×8.0 screws 2 that secure the
USB board to the frame.
9. Lift the rear edge of the USB board 3 until it disengages
from the frame.
10. Slide the frame away 4 and remove it.
Removing the USB Board
Reverse the above procedure to install the USB board.
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