Dell XPS 17 (L701X, Late 2010) - Manual (Page 112)

112 I/O Board
11 Remove the bluetooth card (see "Removing the Bluetooth Card" on
page 55).
12 Follow the instructions from step 13 to step 18 in "Removing the Top
Cover" on page 79.
13 Disconnect the speaker cable from the connector on the I/O board.
14 Turn the top-cover assembly over.
15 Remove the three screws that secure the I/O board to the top cover.
16 Carefully ease the connectors on the I/O board out of the slots in the top
cover, and lift the I/O board off the top cover.
1 speaker cable
1