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

Remove the Phillips PM2.0×3.0 screw (1) that secures the audio board to the base enclosure and

then remove the audio board (2).

Remove the audio board from 35.6-cm (14.0-in) and 33.8-cm (13.3-in) computers:

1. Release the latch (1) that secures the board to the base enclosure.

2. Lift the audio board (2) from the base enclosure.

Reverse this procedure to install the audio board.

112 Chapter 4 Removal and replacement procedures