I/O Daughter Board; Removing The I/O Daughter Board - Dell Latitude 9420 Service Manual

I/O daughter board

Removing the I/O daughter board

Prerequisites
1. Follow the procedure in
2. Enter service mode.
3. Remove the SD card.
4. Remove the SIM card
5. Remove the base cover.
6. Remove the heat sink.
7. Remove the display assembly.
About this task
The following image indicates the location of the I/O board and provides a visual representation of the removal procedure.
Steps
1. Disconnect the I/O daughter FPC cable from the connector on the system board.
2. Remove the single (M2x4) screw securing the I/O daughter board bracket to the palm-rest assembly.
3. Lift the I/O daughter board bracket off the system.
4. Lift the I/O daughter board with the FPC cable off the system.
before working inside your
tray.
computer.
Removing and installing components 43