Latitude 5540 Owner's Manual

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Removing the sensor board

CAUTION:The information in this section is intended for authorized service technicians only.

Prerequisites

  1. Follow the procedure in Before working inside your computer.
  2. Remove the SIM card.
  3. Remove the base cover.
  4. Remove the 4G WWAN card or 5G WWAN card, as applicable.
  5. Remove the WLAN card.
  6. Remove the display assembly.
  7. Remove the display bezel.
  8. Remove the display panel.

About this task

The following images indicate the location of the sensor board and provide a visual representation of the removal procedure.
Figure 1. Sensor board
Image: Removing the display cable

Steps

  1. Remove the sensor-board cable from the routing guides on the display back cover.
  2. Lift the sensor board, along with its cable, off the display back cover.

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