Dell Latitude 5420 Owner's Manual

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Contents

Dell Latitude 5420 Owner's Manual Manual pdf 8 page image

6. Close the display and turn the computer upside-down on a flat work surface.NOTE: To avoid damaging the system board, you must remove the main battery before you service thecomputer.7. Remove the main battery.8. Turn the computer top-side up.9. Open the display.10. Press the power button to ground the system board.CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet beforeopening the display.CAUTION: Before touching anything inside your computer, ground yourself by touching an unpainted metalsurface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metalsurface to dissipate static electricity, which could harm internal components.11. Remove any installed ExpressCards or Smart Cards from the appropriate slots.Recommended ToolsThe procedures in this document may require the following tools:• Small flat-blade screwdriver• #0 Phillips screwdriver• #1 Phillips screwdriver• Small plastic scribe• Flash BIOS update program CDTurning Off Your ComputerCAUTION: To avoid losing data, save and close all open files and exit all open programs before you turn off yourcomputer.1. Shut down the operating system:– In Windows Vista :Click Start , then click the arrow in the lower-right corner of the Start menu as shown below, and thenclick Shut Down.– In Windows XP:Click Start → Turn Off Computer → Turn Off . The computer turns off after the operating system shutdownprocess is complete.2. Ensure that the computer and all attached devices are turned off. If your computer and attached devices did notautomatically turn off when you shut down your operating system, press and hold the power button for about 4seconds to turn them off.8Downloaded from LpManual.com Manuals