Installing The Display Assembly - Dell NOT22857 Owner's Manual

Steps
1. Disconnect the speaker cable from the connector on the system board.
NOTE: This step applies only to computers shipped with a plastic chassis.
2. Disconnect the display cable from the connector on the system board.
3. Unroute the wireless-antenna cable from the routing guides on the palm-rest and keyboard assembly.
NOTE: This step applies only to computers shipped with a plastic chassis.
4. Remove the four screws (M2.5x5) that secure the display hinges to the palm-rest and keyboard assembly.
5. Using a plastic scribe, lift the left and right hinges away from the palm-rest and keyboard assembly.
6. Lift the palm-rest and keyboard assembly at an angle to free it from the hinges and remove it from the display assembly.
NOTE: For computers shipped with an aluminum chassis, the display assembly is a Hinge-Up Design (HUD) assembly
and cannot be further disassembled once it is removed from the palm-rest and keyboard assembly. If any components in
the display assembly are malfunctioning and are required to be replaced, replace the entire display assembly.
NOTE: The power-adapter port is secured in place by the right display hinge. There is no screw, tape, or adhesives
securing the power-adapter port to the palm-rest. As a result, technicians should take note of whether the power-
adapter port has fallen out of the computer during subsequent removal procedures.

Installing the display assembly

CAUTION: The information in this section is intended for authorized service technicians only.
CAUTION: The maximum operating angle for the display-panel hinge is 135 degrees.
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
80 Removing and installing Field Replaceable Units (FRUs)