Dell 700m Owner's Manual - Page 69

Video and Display Problems 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. C H E C K T H E B A T T E R Y - 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. TE S T T H E E L E C T R I C A L O U T L E T - Ensure that the electrical outlet is working by testing it with another device, such as a lamp. C H E C K T H E A C A D A P T E R - 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. A D 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 standby in the Windows Help and Support Center. S W I T C H T H E V I D E O I M A G E - 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 A D J U S T T H E B R I G H T N E S S - 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. E L 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. Solving Problems 69