Dell Latitude 3330 Service Manual page 44

Steps
1. Align and place the I/O board on the palm-rest and keyboard assembly.
2. Align the screw holes on the I/O board with the screw holes on the palm-rest and keyboard assembly.
3. Replace the two screws (M2x3) to secure the I/O board to the palm-rest and keyboard assembly.
4. Connect the fingerprint reader flexible printed circuits to the connector on the I/O board.
NOTE: This procedure applies only to systems shipped with a power button with fingerprint reader installed.
5. Connect the I/O-board cable to the connector on the I/O board and close its latch.
6. Gently press the left display hinge in downward direction towards the system.
7. Align the screw holes on the left display hinge with the screw holes on the system.
8. Replace the two screws (M2x3) to secure the left display hinge to the system.
Next steps
1. Install the 3-cell battery
2. Install the base cover.
3. Follow the procedure in
44 Removing and installing components
or the 4-cell battery, whichever applicable.
After working inside your computer.