Dell Latitude 3500 Service Manual

Removing the system board

1. Disconnect the following cables from the system board:
   1. Power button board [1].
   2. Fingerprint reader (optional) [2].
   3. IO board [3].
   4. HDD [4].
   5. Touchpad [5].
   6. Keyboard [6].
      
2. Disconnect the following cables from the system board:
   1. DC-in [1, 2].
   2. Speaker [3].
      
3. Remove the two (M2x3) and two (M2x2) screws that secure the system board to the palmrest and keyboard assembly [1].
4. Lift the system board off the palm-rest and keyboard assembly [2].