Replacing the Modem Daughter Card

(J) NOTICE The cable connectors are keyed for correct insertion. Do not force the connections. 1. Connect the modem cable to the modem daughter card. 2. Use the screw and boss holes at opposite corners of the modem daughter card to align the card, and press the card into its connector on the system board. 3. Install the M2 x 3-mm screw that secures the card to the system board. 4. Replace the memory module modem cover. You must remove the optional Mini PCI wireless modem (if installed) before...

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. M2.5 x 4-mm captive-washer screws (3) The BIOS chip on the system board contains the service tag sequence, which is also visible on a bar code label on the bottom of the computer. The replacement kit for the system board includes a floppy disk or CD that...

Removing the Keyboard

Follow the instructions in Preparing to Work Inside the Computer. 2. Turn the computer over and remove the four M2.5 x 20-mm screws (three labeled circle K and one labeled circle K M). 3. Turn the computer over and open the display. Q NOTICE Be careful when handling the keyboard. The keycaps are fragile, easily dislodged, and time-consuming to replace. 4. Use a nonmarring plastic scribe under the blank key to pry up the keyboard. 5. Lift the right end of the keyboard and slide it slightly...