Latitude 5430 Chromebook Service Manual

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Installing the system board

Prerequisites

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

About this task

The following image indicates the connectors on your system board for 2-in-1 configuration.

Installing the system board

  1. Display touch cable
  2. Display cable
  3. Volume-control cable
  4. Keyboard-backlight cable
  5. Keyboard cable
  6. Battery cable
  7. Touchpad cable
  8. M.2 2230 solid-state drive
  9. Fingerprint reader cable
  10. Wireless card cable
  11. Power-button cable

The following image indicates the connectors on your system board for clamshell configuration.

Installing the system board

  1. WWAN card slot
  2. Display touch cable
  3. Display cable
  4. Volume-control cable
  5. Keyboard-backlight cable
  6. Keyboard cable
  7. Battery cable
  8. Touchpad cable
  9. M.2 2230 solid-state drive
  10. Fingerprint reader cable
  11. Wireless card cable
  12. Power-button cable

The following images indicate the location of the system board and provide a visual representation of the installation procedure.

Installing the system board

Installing the system board

Steps

  1. Install the system board at an angle and ensure that the ports are properly aligned with the port openings.
    NOTE:

    Insert the system board at an angle for the system board connectors to fit into the port openings of the computer chassis. Gently lower the system board into the computer chassis and ensure not to cover the flexible cables such as the fingerprint reader cable, touchpad cable, keyboard cable, and keyboard-backlit cable near the cable routing.

  2. Align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly.
  3. Replace the five screws (M2x2) that secure the system board to the palm-rest and keyboard assembly.
  4. Replace the two screws (M2x4) that secure the left type-c bracket to the system board.
  5. Replace the two screws (M2x4) that secure the right type-c bracket to the system board.
  6. For 2-in-1 configurations, connect the power-button cable to the connector on the system board.
  7. Connect the fingerprint cable to the connector on the system board.
  8. Connect the speaker cable to the system board.
  9. Adhere the tapes that secure the antenna cables to the system board and also adhere the black adhesive tape to the M.2 solid-state drive slot to the system board.
  10. Connect the touchpad cable to the connector on the system board.
  11. Connect the keyboard cable to the connector on the system board.
  12. Connect the keyboard-backlight cable to the connector on the system board.
  13. For 2-in-1 configurations, connect the volume-control cable to the connector on the system board.

Next steps

  1. Install the display assembly.
  2. Install the fan.
  3. Install the heat sink.
  4. Install the touchpad.
  5. Install the speakers.
  6. Install the volume-control board.
  7. Install the power-button board
  8. Install the WWAN card.
  9. Install the wireless card.
  10. Install the M.2 2230 solid-state drive.
  11. Install the battery.
  12. Install the base cover.
  13. Install the SD card.
  14. Install the SIM card.
  15. Follow the procedure in After working inside your computer.

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