Dell Latitude 7390 Owner's Manual

Removing touchpad buttons board

1. Follow the procedure in Before working inside your computer.
2. Remove the base cover.
3. Disconnect the battery cable from the connector on the system board.
4. To disconnect the smart card cable:
   1. Disconnect the smart card cable [1].
   2. Lift the smart card cable that is affixed to the computer [2] to reveal the touchpad buttons board cable.
   3. Remove the adhesive tape that secures the speaker cable to the touchpad panel [3].
      NOTE Un-route the speaker cable from the routing clips from the touchpad buttons.
   
5. To remove the touchpad buttons board:
   1. Disconnect the touchpad buttons board cable from the touchpad board [1].
      NOTE The touchpad buttons board cable is below the smart card cable. Ensure to lift the latch, to release the touchpad button board cable.
   2. Remove M2.0 x 2.5 screws (2) that secure the touchpad buttons board [2].
   3. Lift the touchpad buttons board from the computer [3].