Installing The I/O Board - Dell Latitude 9520 2-in-1 Service Manual

Steps
1. Disconnect the I/O daughter board data cable, fingerprint reader cable, and LED board cable from the I/O board.
2. Remove the four (M1.6x3.5) screws and lift the I/O daughter board out of the system.

Installing the I/O 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 board and provides a visual representation of the installation procedure.
34 Removing and installing components