86 TroubleshootingSound and Speaker ProblemsFill out the Diagnostics Checklist (see "Diagnostics Checklist" on page 139) as you complete thesechecks.CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in theProductInformation Guide.No sound from integrated speakersA 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 — Double-click the speaker icon in the lower-right corner of yourscreen. Ensure that the volume is turned up and that the sound is not muted. Adjust the volume, bass, or treblecontrols to eliminate distortion.R E I N S T A L L T H E S O U N D ( A U D I O ) D R I V E R — See "Reinstalling Drivers and Utilities" on page 96.No sound from external speakersE 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 the setup diagram supplied with thespeakers. 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 icon in the lower-right corner ofyour screen. Ensure that the volume is turned up and that the 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 the speakers is automaticallydisabled when headphones are connected to the computer’s front-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 by testing it with another device, suchas 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, or halogen lamps to check forinterference.R E I N S T A L L T H E A U D I O D R I V E R — See "Reinstalling Drivers and Utilities" on page 96 .R U N T H E D E L L D I A G N O S T I C S — See "Dell Diagnostics" on page 69.NOTE: The volume control in some MP3 players overrides the Windows volume setting. If you have been listeningto MP3 songs, ensure that you did not turn the player volume down or off.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 is securely inserted into theheadphone connector.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 icon in the lower-right corner ofyour screen. Ensure that the volume is turned up and that the sound is not muted.Touch Pad or Mouse ProblemsC H E C K T H E T O U C H P A D S E T T I N G S —1 Click Start→ Control Panel→ Printers and Other Hardware→ Mouse.2 Try adjusting the settings.
