Dell Latitude 9420 Service Manual page 32

Steps
1. Disconnect the display cable from the connector on the system board.
CAUTION: The connector for the display cable features a latch that locks it in place on the system board.
Flip open the display cable latch from the two tabs on the top side of the latch. After flipping open the latch,
hold the left and right sides of the cable's connector head and gently disconnect the display cable from the
system board in a direct upward motion to prevent damage to the connector's pins.
2. Disconnect the camera cable from the connector on the system board and unroute the camera and display cables from the
routing guides on the system board.
3. Open the display assembly to a 180-degree angle and lay the display screen flat, flip the entire computer over.
4. Remove the six (M2.5x3) screws that secure the display assembly to the system, press the edges of the system near the
hinges, and lift the hinges in the upward direction away from the computer.
32 Removing and installing components