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Dell Latitude 3400 Service Manual

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Removing the system board

Prerequisites

  1. Follow the procedure in before working inside your computer.
  2. Remove the SD memory card.
  3. Remove the base cover.
  4. Disconnect the battery.
  5. Remove the WLAN.
  6. Remove the Memory.
  7. Remove the SSD.
  8. Remove the system fan.
  9. Remove the heatsink.
  10. Remove the display assembly.

Steps

  1. Disconnect the following cables from the system board:
    1. Power button board [1].
    2. Fingerprint reader (optional) [2].
    3. IO board [3].
    4. Touchpad [4].
    5. Keyboard [5].
      Removing the system board
  2. Disconnect the following cables from the system board:
    1. DC-in [1, 2].
    2. Speaker [3].
      Removing the system board
  3. Remove the three (M2x3) screws and two (M2x2) screws that secure the system board to the palmrest and keyboard assembly [1].
  4. Lift the system board off the palm-rest and keyboard assembly [2].
    Removing the system board

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