Dell Vostro 3520 Service Manual page 91

Steps
1. Open the latch and disconnect the hard drive cable from the connector on the system board.
2. Remove the three (M2x2) screws that secure the touchpad bracket to the palm-rest and keyboard assembly.
3. Lift the touchpad bracket off the touchpad.
4. Open the latch and disconnect the touchpad Flexible Flat cable from the connector on the system board.
5. Remove the two screws (M2x2) that secure the touchpad to the palm-rest and keyboard assembly.
6. Lift the touchpad from the palm-rest and keyboard assembly.
Removing and installing components 91