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Latitude 7530 Service Manual

PDF

Removing the system board

Prerequisites

  1. Follow the procedure in Before working inside your computer.
  2. Remove the microSIM-card tray.
  3. Remove the base cover.
  4. Remove the M.2 2230 solid-state drive or the M.2 2280 solid-state drive, whichever applicable.
  5. Remove the WWAN card.
    NOTE This procedure applies only to computers shipped with a WWAN card installed.
  6. Remove the heat-sink.

About this task

The following image indicates the connectors on your system board.

Image of system board connectors of Latitude 7530

  1. Fingerprint reader FPC connector
  2. WWAN-card connector
  3. WLAN-card connector
  4. M.2 solid-state drive connector
  5. Touch-screen cable connector
  6. eDP cable connector
  7. IR-camera cable connector
  8. Sensor daughter-board cable connector
  9. Thermal-fan cable connector
  10. Main-speaker cable connector
  11. Tweeter-speaker cable connector
  12. Audio daughter-board FFC connector
  13. Battery cable connector
  14. Keyboard FFC connector
  15. Touchpad FFC connector
  16. USH daughter-board FFC connector
  17. LED daughter-board FFC connector
  18. Coin-cell battery cable connector
NOTE For computers shipped without a WWAN card, a WWAN shielding cover and WWAN bracket is pre-installed to the computer. As a result, follow the steps in the WWAN card removal/installation section to remove the WWAN shielding cover and WWAN bracket before removing the system board.
CAUTION Remove the heat-sink before removing the system board as there are two screws (M2x3) underneath the heat-sink that secure the system board to the computer.

Image of system board removal

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

Image of removing the system board - part 1

Image of removing the system board - part 2

Steps

  1. Remove the screw (M2x2.5) that secures the fingerprint reader bracket in place to the system board.
    NOTE The steps from 1 to 3 apply only to computers shipped with a power button with fingerprint reader installed.
  2. Remove the fingerprint reader bracket from the system board.
  3. Disconnect the fingerprint reader flexible printed circuits from the connectors on the system board.

    Image of fingerprint reader bracket

  4. Remove the screw (M2x2.5) that secures the Darwin bracket to the system board.
    NOTE The steps from 4 to 7 apply only to computers shipped with a WWAN card installed.
  5. Remove the Darwin bracket from the system board.
  6. Disconnect the #1 Darwin antenna cable and #2 Darwin antenna cable from the respective connectors on the system board.

    Image of connecting the darwin-antenna cables to the system board

  7. Unroute the #1 Darwin antenna cable, #2 Darwin antenna cable, #6 black/gray WWAN Aux1 antenna cable and #5 white/gray WWAN Main antenna cable from the respective routing guides on the palm-rest and keyboard assembly.
  8. Remove the screw (M2x2) that secures the WLAN bracket to the system board.
  9. Remove the WLAN bracket from the system board.
  10. Disconnect and unroute the WLAN-antenna cables from the respective connectors on the system board.
  11. Remove the two screws (M2x2) that secure the display-cable bracket to the system board.
  12. Remove the display-cable bracket from the system board.
  13. Peel back the tape that secures the display cable to the system board.
  14. Disconnect the following cables from the respective connectors on the system board:
    1. Touch-screen cable, if applicable
      NOTE This step applies only to computers shipped with a touch screen installed.
    2. Display cable
    3. IR-camera cable, if applicable
      NOTE This step applies only to computers shipped with an IR camera installed.
    4. Sensor daughter-board cable, if applicable
      NOTE This step applies only to computers shipped with a sensor daughter-board installed.
    5. Main-speakers daughter-board FPC
    6. Tweeter speaker cable
    7. Audio daughter-board FFC
    8. Touchpad FFC
    9. USH daughter-board FFC, if applicable
      NOTE This step applies only to computers shipped with a USH daughter-board installed.
    10. LED daughter-board FFC
  15. Remove the four screws (M2x2.5), the two screws (M2x4) and the two screws (M2x3) that secure the system board to the palm-rest and keyboard assembly.
    NOTE This step applies only to computers shipped with a power button with fingerprint reader installed.

    Image of system board screws in Latitude 7530 with fingerprint reader

  16. Remove the five screws (M2x2.5), the two screws (M2x4) and the two screws (M2x3) that secure the system board to the palm-rest and keyboard assembly.
    NOTE This step applies only to computers shipped with a power button without fingerprint reader installed.

    Image of system board screws in Latitude 7530 without fingerprint reader

  17. Using a plastic scribe, pry the coin-cell battery off the palm-rest and keyboard assembly.
  18. Carefully lift and remove the system board, along with the coin-cell battery, away from the palm-rest and keyboard assembly.

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