Adding and Replacing Parts: Dell Latitude ATG D620 User's GuideNOTICE: To disconnect a network cable, first unplug the cable from your computer and thenunplug it from the network wall connector.4. Disconnect any telephone or network cables from the computer.5. Close the display and turn the computer upside down on a flat work surface.NOTICE: To avoid damaging the system board, you must remove the main battery before youservice the computer.6. Remove any installed modules, including a second battery, if installed (see Media Bay).7. Disconnect your computer and all attached devices from their electrical outlets.8. Remove the battery (see Replacing the Battery).9. Press the power button to ground the system board.10. Remove any PC Card or ExpressCard, if installed, from the PC Card slot (see Removing a Card orBlank).Hinge CoverCAUTION: Before you begin any of the procedures in this section, follow the safetyinstructions in the Product Information 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).NOTICE: The hinge cover is fragile and can be damaged if extreme force is used. Be carefulwhen removing the hinge cover.1. Follow the procedures in Before You Begin.2. Turn the computer top-side up, and then open the display all the way (180 degrees) so that thedisplay rests on your work surface.NOTICE: To avoid damaging the hinge cover, do not lift the cover on both sides simultaneously.Removing the hinge cover in a different way than described may cause the plastic to break.file:///H|/My%20Documents/Cellular/User%20Guides/Notebooks/D620%20ATG/parts.htm (3 of 23)4/13/2007 4:36:47 PM