Skip to main content
Sign Out

Welcome to Dell

My Account
  • Place orders quickly and easily
  • View orders and track your shipping status
  • Enjoy members-only rewards and discounts
  • Create and access a list of your products
  • Manage your Dell EMC sites, products, and product-level contacts using Company Administration.
Sign In Create an Account Premier Sign In Partner Program Sign In
Contact Us

Your Dell.com Carts

Latitude 3420 Service Manual for computers with discrete graphics

PDF

Removing the display assembly

Prerequisites

  1. Follow the procedure in before working inside your computer.
  2. Remove the microSD-card.
  3. Remove the SIM card tray for 4G LTE enabled systems.
  4. Enter the service mode.
  5. Remove the base cover.
  6. Remove the M.2 SSD for systems enabled with 4G LTE.
  7. Remove the M.2 SSD conversion bracket for systems enabled with 4G LTE.
  8. Remove the M.2 SSD conversion plate for systems enabled with 4G LTE.
  9. Remove the WLAN card.
  10. Remove the WWAN card for systems enabled with 4G LTE.
  11. Remove the I/O cable.

About this task

The following images indicate the location of the display assembly and provide a visual representation of the removal procedure.

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

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

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

Steps

  1. Unroute the display cable from the routing guides in the palmrest assembly.
  2. Peel the adhesive tape that secures the display cable in place.
  3. Open the latch and disconnect the display cable from the connector on the system board.
  4. Remove the three (M2.5x6) and two (M2.5x4) screws that secure the display hinges to the system.
  5. Lift the left and right hinges in upward direction away from the palmrest assembly.
  6. Lift the palmrest assembly off the display assembly.
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please select whether the article was helpful or not.
  Comments cannot contain these special characters: <>()\