Installing The Input/Output Board - Dell Inspiron 15 3520 Service Manual

6. Lift the I/O board off the palm-rest and keyboard assembly.

Installing the Input/Output board

Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
About this task
The following images indicate the location of the I/O board and provide a visual representation of the installation procedure.
Steps
1. Place the I/O board on the palm-rest and keyboard assembly.
2. Align the screw holes on the I/O board to the screw holes on the palm-rest and keyboard assembly.
3. Replace the three (M2x3.5) screws that secure the I/O board to the palm-rest and keyboard assembly.
4. Connect the fingerprint-reader board cable to the connector on the I/O board and close the latch (if applicable).
5. Connect the I/O board power cable to the connector on the I/O board and close the latch.
6. Close the hinge and replace the two (M2.5x5) screws that secure the display hinge to the palm-rest and keyboard assembly.
Next steps
1. Install the base cover.
2. Install the SD card.
3. Follow the procedure in After working inside your computer.
Removing and installing components 35