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Latitude 5430 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.

System board callout
  1. Fingerprint reader connector
  2. Camera/IR cable connector
  3. eDP cable connector
  4. Touch and sensor cable connector
  5. System fan connector
  6. Battery cable connector
  7. Memory modules
  8. Touchpad cable connector
  9. USH board connector
  10. Coin-cell battery cable connector
  11. Speaker cable connector
  12. LED board connector

Installing the system board

Installing the system board

Steps

NOTE:The system board can be removed and installed with the thermal module attached in order to simplify the procedure and preserve the thermal bond between the system board and heat-sink. In order to do so, technicians must also remove the two (M2x5) screws to secure the system fan to the system board.

  1. Slide the system board to make the USB Type-C connector to toe-in to the hinge saddle and align the screw holes on the system board with the screw holes on the palm-rest assembly.
  2. Replace the four (M2x3) screws to secure the system board to the palm-rest assembly.
  3. Align and place the USB Type-C bracket on the system board.
  4. Replace the three (M2x5) screws to secure the USB Type-C bracket to the system board.
  5. Connect the USH board cable to the connector on the system board and close the latch to secure the cable to the system board.
  6. Connect the touchpad cable to the connector on the system board and close the latch to secure the cable to the system board.
  7. Route the coin-cell battery cable under the system board and adhere the coin-cell battery to the palm-rest assembly.
  8. Connect the LED board cable to the connector on the system board and close the latch to secure the cable to the system board.
  9. Route the IR camera and eDP cable through the routing guide on the system board.
  10. Connect the eDP cable to the connector on the system board.
  11. Connect the IR camera cable to the connector on the system board.
  12. Adhere the tape that secures the IR camera cable to the system board.
  13. Align the screw holes on the eDP cable bracket with the screw holes on the system board.
  14. Replace the two (M2x3) screws to secure the eDP cable bracket to the system board.

Next steps

  1. Install the assembly inner frame.
  2. Install the heat sink.
  3. Install the memory module.
  4. Install the WLAN card.
  5. Install the WWAN card.
  6. Install the M.2 2280 solid-state drive or M.2 2230 solid-state drive.
  7. Install the 3-cell battery or 4-cell battery.
  8. Install the base cover.
  9. Install the microSIM card.
  10. Install the microSD card.
  11. Follow the procedure in after working inside your computer.

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