Led Board - Dell Latitude 3390 2-in-1 Owner's Manual

b Lift the heat sink away from the laptop [2].
NOTE: Ensure to loosen the screws diagonally. The screws cannot be removed completely as being retention screws.
Installing the heat sink
1 Place the heat sink on the system board.
2 Tighten the captive screws to secure the heat sink to the laptop.
NOTE: Ensure to tighten the screws diagonally to evenly cover the processor. Start with a screw and proceed with
diagonally opposite screw, irrespective of which screw one starts with.
3 Install the:
a battery
b base cover
4 Follow the procedure in

LED board

Removing the LED board
1 Follow the procedure in
2 Remove the:
a base cover
b battery
3 To remove the LED board:
a Lift the latch and disconnect the LED board cable [1].
NOTE: Use a sharp tool or a plastic scribe to gently lift the latch.
22 Removing and installing components
After working inside your computer.
Before working inside your computer.