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

5. Disconnect the I/O daughter board FPC cable from the I/O daughter board.

Installing the I/O daughter board

Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the I/O daughter board and provides a visual representation of the installation
procedure.
Steps
1. Connect the I/O daughter board FPC cable to the I/O daughter board.
2. Place the I/O daughter board with the FPC cable in the slot on the system.
3. Align and place the I/O board bracket on the I/O daughter board.
4. Replace the single (M2x4) screw securing the I/O daughter board bracket to the palm-rest assembly.
5. Connect the I/O daughter FPC cable to the connector on the system board.
Next steps
1. Install the display assembly.
2. Install the heat sink.
3. Install the base cover.
44 Removing and installing components