Dell Latitude 7390 Owner's Manual page 33

a. Disconnect the smart card cable [1].
b. Lift the smart card cable that is affixed to the computer [2] to reveal the touchpad buttons board cable.
c. 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:
a. 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.
b. Remove M2.0 x 2.5 screws (2) that secure the touchpad buttons board [2].
c. Lift the touchpad buttons board from the computer [3].
Removing and installing components 33