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Latitude 5430 Rugged Service Manual

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 connectors on your system board.

This image displays the System board layout - front side

  1. Power button board cable connector
  2. Wi-Fi I/O board connector
  3. WWAN card connector
  4. Rear I/O daughter board connector
  5. WLAN card connector
  6. eDP cable connector
  7. Fan cable connector
  8. Lid cable connector
  9. Dock I/O flat printed cable connector
  10. USH board connector
  11. M.2 2230/2280 solid state drive connector
  12. Right battery cable connector
  13. Left battery cable connector
  14. LED board cable connector
  15. Coin-cell battery cable connector

This image displays the System board layout - rear side

  1. Left Type-C cable connector
  2. Right Type-C cable connector
  3. Memory module connector
  4. Memory module connector
  5. Left Type-C flat printed cable connector
  6. Right Type-C flat printed cable connector
  7. Keyboard cable connector
  8. Touchpad cable connector
  9. Backlight flat printed cable connector
  10. Left I/O flat printed cable connector

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

This image displays the installation of system board screws

This image displays the removal of system board cables

This image displays the removal of system board

Steps

  1. CAUTION:Ensure I/O flat printed cable is connected to the system board before proceeding to the next step.
    Connect the left I/O flat printed cable connector to the system board.
  2. Flip the system board and replace the nine (M2.5x5) screws that secure the system board to the system chassis.
  3. Connect the following cables to their connector on the system board (L-R): power button board, eDP, secondary daughterboard, LED board, and coin-cell battery from the system board.
    Adhere the LED, power button board, secondary daughterboard flat printed cables with kapton tapes to the connector.
  4. Connect the LAN flat printed cable to its connector on the system board.
  5. Connect the Wi-Fi board flat printed cable to its connector on the system board.
    Adhere the Wi-Fi board flat printed cable with kapton tape to the connector.
  6. Connect the right Type-C, left Type-C and touchpad flat printed cables to their connectors on the system board.
    Adhere the touchpad flat printed cable with kapton tape to the connector.
  7. Connect the right and left Type-C cables to their connectors on the system board.
  8. Replace the screw (M2x3.5) that secures the Type-C cable cover to the system board.
  9. Replace the four (M2x3.5) screws that secure the cable cover to the system board.
  10. Align and insert the serial RS-232 port to the system chassis.
  11. Replace the two epoxy cap (4-40x6.5) screws that secure the serial RS-232 port to the system chassis.

Next steps

  1. Install the heat-sink (UMA) or heat-sink (discrete).
  2. Install the fan.
  3. Install the rear I/O board.
  4. Install the dock I/O board.
  5. Install the WWAN card.
  6. Install the WLAN card.
  7. Install the Wi-Fi I/O board.
  8. Install the base cover.
  9. Install the keyboard.
  10. Install the primary M.2 2280 solid state drive or primary M.2 2230 solid state drive.
  11. Install the battery.
  12. Follow the procedure in after working inside your computer.

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