DellTM XFR D630 Fully Rugged Notebook Service ManualPage 104 of 106 Revision A013. Attach the 2 antenna cables. Refer to the antenna cable wiring diagram to ensure the antennacables are properly attached.4. Install the system board (see 2 9 5 H Installing the System Board).25 Bottom Chassis25.1 Removing the Bottom ChassisCAUTION: Before working inside your computer, follow the safety instructions in theXFR D630 Product Information Guide and in the XFR D630 User’s Guide.NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or byperiodically touching an unpainted metal surface (such as a connector on the back of thecomputer).1. Follow the instructions in 2 9 6 H Before You Begin.2. Remove the system board (see 2 9 7 H Removing the System Board).NOTE: When removing the system board you do not need to remove the system memory or theprocessor.3. Remove the fan (see 2 9 8 H Removing the Fan).4. Remove the RF passthru board (see 2 9 9 H Removing the RF Passthru Board).5. Remove the modem cable (see 3 0 0 H Removing the Modem Cable).