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Latitude 3520 Service Manual

PDF

Installing the WWAN I/O board

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the WWAN I/O board and provides a visual representation of the installation procedure.

NOTE:The following steps are applicable only for 4G LTE enabled systems.

Image: Removing the screws that secure the base cover to the palm-rest and keyboard assembly

Steps

  1. Connect the WWAN cable to the connector on the WWAN I/O board and close the latch.
  2. Align and place the WWAN I/O board into its slot on the palmrest assembly.
  3. Install the two (M2x3) screws to secure the WWAN I/O board to the palmrest assembly.

Next steps

  1. Install the battery cable
  2. Install the base cover.
  3. Install the SIM card tray for 4G LTE enabled systems.
  4. Install the microSD card.
  5. Follow the procedure in after working inside your computer.

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