Dell Latitude D630 ATG User's Guide - Page 101
If the display is blank, If the display is difficult to read, Start, Help and Support, Control Panel
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CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. If the display is blank NOTE: If you are using a program that requires a higher resolution than your computer supports, it is recommended that you attach an external monitor to your computer. CHECK THE BATTERY - If you are using a battery to power your computer, the battery charge may be depleted. Connect the computer to an electrical outlet using the AC adapter, and turn on the computer. TEST TH E ELECTRICAL OUTLET - Ensure that the electrical outlet is working by testing it with another device, such as a lamp. CHECK THE AC AD APTER - Check the AC adapter cable connections. If the AC adapter has a light, ensure that the light is on. C O N N E C T T H E C O M P U T E R D I R E C T L Y T O A N E L E C T R I C A L O U T L E T - Bypass power protection devices, power strips, and the extension cable to verify that the computer turns on. AD JUST TH E PO WER PROPERTIES - Search for the keyword standby in the Windows Help and Support Center (click Start→ Help and Support). SWITCH THE VIDEO IMAGE - If your computer is attached to an external monitor, press to switch the video image to the display. If the display is difficult to read AD J UST TH E BRIGHTNESS - Press and the up- or down-arrow key M O V E T H E E X T E R N A L S U B W O O F E R A W A Y F R O M T H E C O M P U T E R O R M O N I T O R - If your external speaker system includes a subwoofer, ensure that the subwoofer is at least 60 cm (2 ft) away from the computer or external monitor. ELIMINA TE POSSIBLE INTERF ERENCE - Turn off nearby fans, fluorescent lights, halogen lamps, or other appliances. R O T A T E TH E C O M PU T E R T O F A C E A D I F F E R E N T D I R E C T I O N - Eliminate sunlight glare, which can cause poor picture quality. ADJUST THE WINDOWS DISPLAY SETTINGS - 1 Click the Start button and then click Control Panel. 2 Click Appearance and Themes. 3 Click the area you want to change or click the Display icon. 4 Try different settings for Color quality and Screen resolution. RUN TH E VI DEO D IAGNOSTICS TESTS - If no error message appears and you still have a display problem, but the display is not completely blank, run the Video device group in the Dell Diagnostics. If the problem persists, contact Dell (see "Obtaining Assistance" on page 149). SEE "ERROR MESSA GES" - If an error message appears, see "Error Messages" on page 88. Troubleshooting 101