User Guide

User Guide
Palm Rest : Dell Latitude D420 Service Manual

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Palm Rest

Dell™ Latitude™ D420 Service Manual

  Removing the Palm Rest

  Replacing the Palm Rest



Removing the Palm Rest

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.
  1. Follow the instructions in Before You Begin.

  2. Remove any installed PC Cards from the PC Card slot.

  3. Remove any installed memory modules or Mini PCI cards (see Memory and Mini-Cards).

  4. Remove the hard drive (see Hard Drive).

  5. Remove the hinge cover (see Hinge Cover).

  6. Remove the keyboard (see Keyboard).

  7. Remove the internal card with Bluetooth® wireless technology (see Internal Card With Bluetooth® Wireless Technology).

  8. Remove the display assembly (see Display Assembly).

  9. Turn the computer upside down and remove the seven M2.5 x 5-mm screws from the computer base.

1

M2.5 x 5-mm screws (7)

  1. Turn the computer topside up and remove the six M2.5 x 5-mm screws labeled "P" from the top of the palm rest.

1

M2.5 x 5-mm screws (6)

NOTICE: Pull on the plastic tab on top of the connectors to avoid damaging the connectors.
  1. Disconnect the speaker connector from the system board.

  2. Disconnect the Secure Digital/SIM card reader cable from the system board.

  3. Disconnect the touch pad cable from the system board.

  4. Lift the plastic bar on the LED board connector and disconnect the LED board cable from the system board.

1

speaker connector

2

Secure Digital/SIM card reader cable connector

3

touch pad connector

4

LED board connector

 

 

 

 

NOTICE: Carefully separate the palm rest from the computer base to avoid damage to the palm rest.
  1. Starting at the back center of the palm rest, use your fingers to separate the palm rest from the computer base by lifting the inside of the palm rest while pushing in on the outside.


Replacing the Palm Rest

  1. Align the palm rest with the computer base and gently snap into place.

  2. Connect the LED board connector to the system board.

  3. Connect the touch pad connector to the system board.

  4. Connect the Secure Digital/SIM card reader cable connector to the system board.

  5. Connect the speaker connector to the system board.

  6. Replace the six M2.5 x 5-mm screws labeled "P" on the top of the palm rest.

  7. Turn the computer upside down and replace the seven M2.5 x 5-mm screws in the computer base.

  8. Replace the display assembly (see Display Assembly).

  9. Replace the internal card with Bluetooth® wireless technology (see Internal Card With Bluetooth® Wireless Technology).

  10. Replace the keyboard (see Keyboard).

  11. Replace the hinge cover (see Hinge Cover).


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