Dell Inspiron 3500 - Manual (Page 107)

Infrared Board Removal: Dell™ Inspiron™ 3500 Portable Computer
You can remove the infrared (IR) board without removing the palmrest. To remove the infrared board, see the exploded view of the base assembly and perform the
following steps:
1. Remove the display assembly .
2. Remove the 5-mm screw securing the IR board to the right system board rail.
3. Lift the IR board to expose the wires.
4. Disconnect the IR cable from connector J4 on the system board.
5. Remove the IR board.
Type of Screw Torque
FPH 2.5 x 5 (1) 3.0–3.5 kgf-cm
NOTE: Reconnect the IR board to the system board by carefully threading the wires and connector by the I/O bracket and using a screwdriver to
press on the connector to reseat it.