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Latitude 5520 Service Manual

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Removing the LED board

Prerequisites

  1. Follow the procedure in Before working inside your computer.
  2. Enter service mode.
  3. Remove the SIM card.
  4. Remove the microSD card.
  5. Remove the base cover.
  6. Remove the WLAN card.
  7. Remove the WWAN card.
  8. Remove the battery.
  9. Remove the assembly inner frame.

About this task

The following image indicates the location of the LED board and provides a visual representation of the removal procedure.

Removing the LED board

Steps

  1. Open the latch and disconnect the smartcard reader cable from the connector on the USH-daughter board.
  2. Remove the smartcard reader cable away from the USH-daughter board.
  3. Disconnect the LED-board cable from the connector on the system board.
  4. Remove the single screw (M2x3) that secures the LED board to the palm-rest assembly.
  5. Lift the LED board and cable away from the palm-rest assembly.

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