82 Solving Problemsw w w . d e l l . c o m | s u p p o r t . d e l l . c o mIf the display is difficult to readT E 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 isworking by testing it with another device, such as a lamp.C H E C K T H E AC A D A P T E R — Check the AC adapter cable connections. Ifthe AC adapter has a light, ensure that it 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 verifythat the computer turns on. To access the help file, see page 80.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 inthe Windows Help and Support Center. To access the help file, see page 80.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 externalmonitor, press to switch the video image to the display.NOTE: If you are playing a DVD or watching a streaming video, isdisabled.NOTE: If the computer is connected to a television, you must enable thetelevision through the Windows display settings (see page 66).A D J U S T T H E B R I G H T N E S S — See the Tell Me How help file for instructionson adjusting the brightness. To access the help file, see page 80.M O V E T H E 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 isat 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, fluorescentlights, halogen lamps, or other appliances.
