Remove the audio/USB board:
1.Release the ZIF connector (1) to which the audio/USB board ribbon cable is attached, and then disconnect the audio/USB board ribbon cable from the system board.
2.Remove the four Phillips PM3.0×6.5 screws (2) that secure the audio/USB board to the middle frame and display assembly.
3.Remove the audio/USB board (3) and ribbon cable.
Reverse this procedure to install the audio/USB board.
48 Chapter 4 Removal and replacement procedures