Installing The Input/Output Board - Dell Vostro 3520 Service Manual

Steps
1. Open the latch and disconnect the I/O board cable from the I/O board.
2. Open the latch and disconnect the fingerprint-reader board cable from the I/O board (if applicable).
3. Remove the two (M2x3.5) screws that secure the I/O board to the palm-rest and keyboard assembly.
4. 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 two (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.
Removing and installing components 39