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Latitude 9520/Latitude 9520 2-in-1 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 procedure.

About this task

The following image indicates the location of the system board and provides a visual representation of the installation procedure.

Installation 1

Installation 2

Steps

  1. Align and place the system board on the palm-rest and keyboard assembly.
  2. Replace the ten (M1.6x3.5) screws to secure the system board to the palm-rest and keyboard assembly .
  3. Connect the I/O daughter board data cable.
  4. Connect the I/O daughter board data FPC cable to the connector on the I/O daughter board.
  5. Connect the USH daughter board FFC cable, WWAN Darwin cable, and Touchpad FPC to the connectors on the system board.
  6. Replace the two (M2.5x5) screws to secure the two system board hooks to the system board.
    NOTE: Do not slide the hooks on the system board to fit the positioning studs into the openings, as this will damage the system board. When installing the hooks, align the positioning studs on the hooks over the openings on the system board and then install the hooks on the system board.
  7. Route the WWAN antenna cable through the routing guides on the system board. and connect them to the WWAN card.
  8. Connect the Darwin antenna cables to the wireless module, and route the cables through the routing guides on the system board.
  9. Align and place the wireless module bracket on the system board.
  10. Replace the single (M1.6x4.5) screw that secures the wireless module bracket to the system board.
  11. Connect the display cable, and camera cable to the system board.
  12. Replace the single (M1.6x3.5) screw that secures the display-cable bracket to the system board.

Next steps

  1. Install the speakers.
  2. Install the battery.
  3. Install the solid-state drive.
  4. Install the WWAN card.
  5. Install the base cover.
  6. Install the SIM card tray.
  7. Install the microSD card.
  8. Follow the procedure in After working inside your computer.

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