Latitude 7420/Latitude 7420 2-in-1 Service Manual

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Installing the keyboard

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 keyboard and provides a visual representation of the installation procedure.

Assemble the keyboard and plate.

Install the screws and connect the cable to touchpad module.

Steps

  1. Align and place the keyboard on the keyboard support plate and secure it using the two (M2x2) screw.
  2. Replace the keyboard assembly in to its slot in the computer.
  3. Connect the keyboard FPC and keyboard backlight FPC to the touchpad module.
  4. Replace the 26 (M1.6x1.7) screws that secure the keyboard assembly to the computer.
  5. Adhere the LED board FFC, USH board FFC , touchpad FFC and, SmartCard reader FFC to the back of the keyboard.

Next steps

  1. Install the I/O board.
  2. Install the system board.
  3. Install the audio board.
  4. Install the heatsink assembly.
  5. Install the battery.
  6. Install the WWAN card.
  7. Install the solid-state drive.
  8. Install the base cover.
  9. Install the microSD card.
  10. Follow the procedure in after working inside your computer.
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