Latitude 5540 Owner's Manual

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Removing the display assembly

CAUTION:The information in this section is intended for authorized service technicians only.

Prerequisites

  1. Follow the procedure in Before working inside your computer.
  2. Remove the SIM card.
  3. Remove the base cover.
  4. Remove the 4G WWAN card or 5G WWAN card, as applicable.
  5. Remove the WLAN card.

About this task

The following images indicate the location of the display assembly and provide a visual representation of the removal procedure.
Figure 1. Image: Display assembly
Image: Removing the display assembly
Figure 2. Image: Display assembly
Image: Removing the memory module

Steps

  1. Remove the two (M2x3) screws that secure the display-cable bracket to the system board.
  2. Lift the display-cable bracket off the palm-rest assembly.
  3. Disconnect the display cable from the system board.
  4. Remove the display cable from the routing guides on the system board.
  5. Lift the black flap near the antenna cables and uncover the sensor-board cable.
  6. Disconnect the sensor-board cable from the connector on the system board.
  7. Remove the WLAN and WWAN antennas (where applicable) from the routing guides on the system board.
  8. Remove the six screws (M2.5x5) that secure the left and right display hinges to the palm-rest assembly.
  9. Carefully lift the display assembly from the palm-rest assembly.
  10. Carefully place the display assembly on a clean, flat surface.
    Figure 3. Image: Display assembly
    Image: Removing the display assembly

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