58 Quick Reference GuideSound and Speaker ProblemsCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in theProduct Information Guide.No sound from speakersNOTE: The volume control in MP3 and other media players may override theWindows volume setting. Always check to ensure that the volume on the mediaplayer(s) has not been turned down or off.C H E C K T H E S P E A K E R C A B L E C O N N E C T I O N S — Ensure that the speakers areconnected as shown on the setup diagram supplied with the speakers. If you purchaseda sound card, ensure that the speakers are connected to the card.E N S U R E T H A T T H E S U B W O O F E R A N D T H E S P E A K E R S A R E T U R N E D O N — See thesetup diagram supplied with the speakers. If your speakers have volume controls,adjust the volume, bass, or treble to eliminate distortion.A D J U S T T H E W I N D O W S V O L U M E C O N T R O L — Click or double-click the speaker iconin the lower-right corner of your screen. Ensure that the volume is turned up and thatthe sound is not muted.D I S C O N N E C T H E A D P H O N E S F R O M T H E H E A D P H O N E C O N N E C T O R — Sound from thespeakers is automatically disabled when headphones are connected to the computer’sfront-panel headphone connector.T 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 is working bytesting it with another device, such as a lamp.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, orhalogen lamps to check for interference.R U N T H E S P E A K E R D I A G N O S T I C SR E I N S T A L L T H E S O U N D D R I V E R — See "Drivers" in your User’s Guide.R U N T H E H A R D W A R E T R O U B L E S H O O T E R — See "Hardware Troubleshooter" onpage 41.No sound from headphonesC H E C K T H E H E A D P H O N E C A B L E C O N N E C T I O N — Ensure that the headphone cable issecurely inserted into the headphone connector (see "About Your Computer" onpage 11).A D J U S T T H E W I N D O W S V O L U M E C O N T R O L — Click or double-click the speaker iconin the lower-right corner of your screen. Ensure that the volume is turned up and thatthe sound is not muted.