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# RJ-11/RJ-45 Module

Dell™ Latitude™ C840 Service Manual

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

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

1 | network cable
2 | bottom case
3 | RJ-11/RJ-45 module
4 | modem cable

### Removing the RJ-11/RJ-45 Module

1. Follow the instructions in "Preparing to Work Inside the Computer."
2. Remove the system board.
3. From outside the bottom case, push in and up on the RJ-11/RJ-45 module while pulling the side of the bottom case slightly outward. When the module disengages, lift it out.

### Replacing the RJ-11/RJ-45 Module

When replacing the RJ-11/RJ-45 module, hold both cables safely out of the way and snap the housing down into place. Then route the modem cable through the vertical slot, through the appropriate posts, and out through the corner of the memory module/modem cutout.

1 | vertical slot
2 | modem cable

When replacing the system board, ensure that the network cable is safely above the board and out of the way.

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