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Latitude 5440 Owner's Manual

Installing the display assembly

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

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the display assembly and provide a visual representation of the installation procedure.
Figure 1. Installing the display assembly - For computers shipped with 4G card
Image: Installing the display assembly
Figure 2. Installing the display assembly - For computers shipped with 4G card
Image: Installing the display assembly
Figure 3. Installing the display assembly - For computers shipped with 5G card
Image: Installing the display assembly
Figure 4. Installing the display assembly - For computers shipped with 5G card
Image: Installing the display assembly

Steps

  1. Align the screw holes on the palm-rest assembly with the screw holes on the display hinges.
  2. Replace the four screws (M2.5x5) that secure the left and right display hinges to the palm-rest assembly.
  3. Turn the computer over and open the display at an angle of 90 degrees.
  4. Close the display and turn the computer over.
  5. Connect the IR camera cable to the connector on the system board and route the IR camera cable through the routing guide on the palm-rest assembly (optional).
  6. Connect the G-Sensor board cable to the system board (optional).
  7. Connect the touchscreen cable to the system board (optional).
  8. Connect the display cable to the system board.
  9. Adhere the tape that secures the display cable to the system board.
  10. Align the screw holes on the display cable bracket with the screw holes on the system board.
  11. Replace the two (M2x3) screws that secure the display cable bracket to the system board.
  12. Route the antenna cables on the routing guides on the heat sink.

Next steps

  1. Install the WWAN card.
  2. Install the wireless card.
  3. Install the base cover.
  4. Install the nanoSIM card.
  5. Follow the procedure in After working inside your computer.

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