Dell Latitude 3390 2-in-1 - Input;Output(I;O) Boards

Installing the LED board
1 Insert the LED board into the slot on the laptop.
NOTE
: Ensure to align the LED board hole to the cylindrical hook to secure the board on the system board.
2 Ax the adhesive tape to secure the LED board to the laptop.
3 Ax the LED board cable to the adhesive tape on the system board and connect the LED board cable to the connector.Release the
latch.
4 Install the:
a battery
b base cover
5 Follow the procedure in After working inside your computer.
Input/Output(I/O) boards
Removing the Input-Output board
1 Follow the procedure in Before working inside your computer.
2 Remove the:
a base cover
b battery
3 To remove the I/O board:
a Peel and lift the plastic label of the I/O board cable [1].
b Pull the copper lever to disconnect the I/O board cable on the system board [2].
NOTE
: Ensure to pull the copper lever by an angle 15° to 20°, to avoid damage to the connector copper pins.
c Disconnect the coin cell battery and power and volume button board cables from the I/O board [3].
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Removing and installing components