Inspiron 7490 Service Manual

Removing the I/O board

The following image indicates the location of I/O board and provides a visual representation of the removal procedure.

Image: Removing the I/O board

Disconnect the speaker cable from the I/O board.
Disconnect the I/O-board power cable from the I/O board.
Open the latch and disconnect the I/O-board data cable from the I/O board.
CAUTION Do not disconnect the 40-pin I/O-board cable from the I/O board without removing the latch. The connector will be damaged if you attempt to disconnect the cable without opening the latch.
Remove the three screws (M2x3) that secure the I/O board to the palm-rest assembly.
Lift the I/O board off the palm-rest assembly.