Latitude 5540 Owner's Manual

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Installing the power button

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

Prerequisites

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

About this task

The following images indicate the location of the power board and provide a visual representation of the installation procedure.
Figure 1. Image: Power button
Image: Installing the power-button board

Steps

  1. Align and place the power button on the palm-rest assembly.
  2. Replace the two (M2x2.5) screws to secure the power button to the palm-rest assembly.

Next steps

  1. Install the system board.
  2. Install the assembly-inner frame.
  3. Install the heat sink (discrete GPU) or heat sink (integrated GPU), as applicable.
  4. Install the M.2 2230 solid-state drive in Slot 2, if applicable.
  5. Install the M.2 2230 or M.2 2280 solid-state drive in Slot 1, as applicable.
  6. Install the memory modules.
  7. Install the WLAN card.
  8. Install the 4G WWAN card or 5G WWAN card, as applicable.
  9. Install the battery.
  10. Install the base cover.
  11. Install the SIM card.
  12. Follow the procedure in After working inside your computer.

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