Dell XPS 15 9520 Service Manual - Page 35
Installing the I/O board, If you are replacing a component
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Steps 1. Disconnect the I/O-board cable from the system board and I/O board, then lift the I/O-board cable from the system board. 2. Remove the screw (M2x4) that secures the USB Type-C port bracket to the system board and lift the bracket off the I/O board. 3. Remove the screw (M2x4) securing the IO daughter board in place. 4. Lift the I/O board off the palm-rest and keyboard assembly. 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. Removing and installing components 35
![](/manual_guide/products/dell-xps-15-9520-service-manual-0d71d44/35.png)
Steps
1.
Disconnect the I/O-board cable from the system board and I/O board, then lift the I/O-board cable from the system board.
2.
Remove the screw (M2x4) that secures the USB Type-C port bracket to the system board and lift the bracket off the I/O
board.
3.
Remove the screw (M2x4) securing the IO daughter board in place.
4.
Lift the I/O board off the palm-rest and keyboard assembly.
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.
Removing and installing components
35