Dell XPS M1330 Owner's Manual - Page 115

TEST THE ELECTRICAL OUTLET - Ensure that the electrical outlet is working by testing it with another device, such as a lamp. CHECK THE AC ADAPTER - 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 extension cables to verify that the computer turns on. AD J U S T T H E P O W E R P R O P E R T I E S - Search for the keyword sleep in Windows Help and Support. S WITCH T H E 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 U S T T H 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. EL I M I N A T E P O S S I B L E I N T E R F E R E N C E - Turn off nearby fans, fluorescent lights, halogen lamps, or other appliances. R O T A T E T H E C O M P U 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 Start → Control Panel→ Appearance and Personalization→ Personalization→ Display Settings. 2 Click the area you want to change or click the Display icon. Try different settings for Resolution and Colors. R U N T H E VI D E O D I A G N O S T I C S T E S T S - 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" on page 87, then contact Dell (see "Contacting Dell" on page 164). SEE "ERROR M ESSAGES" - If an error message appears, see "Error Messages" on page 98. Troubleshooting 115