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Vostro 3405 Service Manual

Removing the I/O board

Prerequisites

  1. Follow the procedure in Before working inside your computer.
  2. Remove the SD card.
  3. Remove the base cover.
  4. Disconnect the battery.

About this task

The following images indicate the location of the I/O board and provides a visual representation of the removal procedure.

Removing the I/O board

Steps

  1. Open the latch and disconnect the fingerprint-reader board cable from the I/O board, if applicable.
  2. Open the latch and disconnect the I/O-board power cable from the I/O board.
  3. Open the latch and disconnect the fingerprint-reader cable from the I/O board, if applicable.
  4. Open the latch and disconnect the I/O-board cable from the I/O board.
  5. Remove the four screws (M2x4) that secure the I/O board to the palm-rest and keyboard assembly.
  6. Lift the I/O board off the palm-rest and keyboard assembly.

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