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# Palm Rest

Dell™ Latitude™ C400 Service Manual

Removing the Palm Rest

Replacing the Palm Rest

## Removing the Palm Rest

| NOTICE: Disconnect the computer and any attached devices from electrical outlets, and remove any installed batteries.

| NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer.

| NOTICE: Read "Preparing to Work Inside the Computer" before performing the following procedure.

1. Remove the hard drive.
2. Remove the keyboard.

| NOTICE: You must remove the display assembly before you remove the palm rest; the display hinges pass through the back of the palm rest.

1. Remove the display assembly.
2. Turn the computer over and remove the four M2.5 x 6-mm screws (two screws to each side of the battery bay).

Palm-Rest Screws on Bottom of Computer

1 | M2.5 x 6-mm screws (4)
2 | M2.6 x 1.8-mm screws (4)
3 | M2 x 4-mm screws (2)
4 | M2.5 x 6-mm screws (2)

1. Remove the four M2.6 x 1.8-mm screws located inside the battery bay.
2. Remove the two M2.5 x 6-mm screws located near the service tag at the back edge of the computer.
3. Turn the computer over and remove the two M2 x 4-mm screws located above the serial, docking, and video connectors on the back panel.

Critical Component Shield

1 | M2 x 4-mm screws (6) (one screw may be captive)
2 | critical component shield

1. Remove the six M2 x 4-mm screws (one of which may be captive) that secure the critical component shield to the system board, and lift the shield away.

| NOTE: At this point, the memory module under the critical component shield can be replaced.

Palm Rest Removal

1 | M2.5 x 6-mm screws (6)
2 | LED cable
3 | palm-rest flex cable

1. Remove the six M2.5 x 6-mm screws that secure the palm rest to the system board.
2. Disconnect the LED and palm-rest flex cables.
3. If a Mini PCI wireless card is installed, disconnect the two wireless cables from the card.
4. Lift the palm rest away.

## Replacing the Palm Rest

To aid with proper flex cable connection, a white locator line has been added near the ends of the flex cables. When replacing the LED and palm-rest flex cables, press the cable into the connector until the white line disappears and hold it steady while you snap the flex cable connector down. (The white line may reappear after the connector is closed; this should not indicate a problem with the connection.)

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