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Vostro 3400 Service Manual

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Removing the system board - Realtek audio

Prerequisites

  1. Follow the procedure in before working inside your computer.
  2. Remove the SD card.
  3. Remove the base cover.
  4. Remove the battery.
  5. Remove the WLAN.
  6. Remove the SSD.
  7. Remove the hard drive assembly.
  8. Remove the memory
  9. Remove the system fan.
  10. Remove the heatsink.
    NOTE The system board can be removed along with the heat sink.
  11. Remove the display assembly.

About this task

Removing the system boardRemoving the system board

Steps

  1. Remove the two (M2.5x5) screws from the right hinge, Fold the right hinge up.
  2. Disconnect the following cables from the system board:
    1. Speaker cable
    2. Keyboard FFC
    3. Power adapter port cable
    4. Keyboard backlight FFC
    5. Touchpad FFC
    6. Hard drive FFC
    7. IO board FFC
    8. Fingerprint reader FFC
    9. Power button FFC from the system board
  3. Remove the single (M2x4) screw that secures the system board to the palmrest.
  4. Carefully lift the system board away from the chassis.
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