Dell Latitude D420 User Manual page 55

4. Ease the hinge cover up, moving from right to left, and remove it.
5. To replace the hinge cover, insert the left edge of the cover into the hinge cover slot, and press from left to right until the cover snaps into place.
Keyboard
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 a connector on the back of the computer).
1. Follow the procedures in Before You
2. Remove the hinge cover (see
NOTICE: The keycaps on the keyboard are fragile, easily dislodged, and time-consuming to replace. Be careful when removing and handling the
keyboard.
3. Remove the keyboard:
a. Remove the three M2 x 3-mm screws across the top of the keyboard.
NOTICE: Lift the keyboard carefully in
b. Slide the keyboard forward to gain access to the two keyboard connectors.
c. Pull up on the plastic bar on the keyboard connectors to disconnect the keyboard connectors from the system board.
1 M2 x 3-mm screws (3)
2 keyboard
NOTICE: To avoid scratching the palm rest when replacing the keyboard, hook the tabs along the front edge of the keyboard into the palm rest, and
then secure the keyboard in place.
4. To replace the keyboard, connect the keyboard cable to the connector on the system board.
5. Place the tabs along the front edge of the keyboard into the palm rest, and lay the keyboard down on the palm rest.
6. Replace the three screws at the top of the keyboard.
7. Replace the hinge cover.
Memory
You can increase your computer memory by installing memory modules on the system board. See
by your computer. Install only memory modules that are intended for your computer.
Begin.
Hinge Cover).
step b to ensure that you do not pull the keyboard wire.
3 tabs (4)
4 plastic bar on keyboard connectors
Specifications for information about the memory supported