Installing The Io Board - Dell Vostro 3405 Service Manual

4. Open the latch and disconnect the I/O-board cable from the I/O board.
5. Remove the four screws (M2x4) that secure the I/O board to the palm-rest and keyboard assembly.
6. Lift the I/O board off the palm-rest and keyboard assembly.

Installing the IO 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 provides 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 four screws (M2x4) 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. Connect the fingerprint-reader cable to the connector on the I/O board and close the latch, if applicable.
7. Connect the I/O-board cable to the connector on the I/O board and close the latch.
Next steps
1. Install the battery.
30 Disassembly and reassembly