Dell DMC, MTC2, G7279 manual Sound and Speaker Problems, No sound from speakers

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Sound and Speaker Problems

No sound from speakers

NOTE: The volume control in some MP3 players overrides the Windows® volume setting. If you have been listening to MP3 songs, ensure that you did not turn the player volume down or off.

CHECK THE SPEAKER CABLE CONNECTIONS — Ensure that the speakers are connected as shown on the setup diagram supplied with the speakers. If you purchased a sound card, ensure that the speakers are connected to the card.

ENSURE THAT THE SUBWOOFER AND THE SPEAKERS ARE TURNED ON — See the setup diagram supplied with the speakers. If your speakers have volume controls, adjust the volume, bass, or treble to eliminate distortion.

ADJUST THE WINDOWS VOLUME CONTROL — Click or double-click the speaker icon in the lower-right corner of your screen. Ensure that the volume is turned up and that the sound is not muted.

DISCONNECT HEADPHONES FROM THE HEADPHONE CONNECTOR — Sound from the speakers is automatically disabled when headphones are connected to the computer’s front-panel headphone connector.

TEST THE ELECTRICAL OUTLET — Ensure that the electrical outlet is working by testing it with another device, such as a lamp.

ENABLE DIGITAL MODE — Your speakers do not work if the CD drive is operating in analog mode. To enable digital mode:

1 Click the Start button, click Control Panel, and then click Sounds, Speech, and Audio Devices. 2 Click Sounds and Audio Devices.

3 Click the Hardware tab.

4 Double-click the name of your CD drive. 5 Click the Properties tab.

6 Check the Enable digital CD audio for this CD-ROM device box.

ELIMINATE POSSIBLE INTERFERENCE — Turn off nearby fans, fluorescent lights, or halogen lamps to check for interference.

RUN THE SPEAKER DIAGNOSTICS — Some speaker systems have self- diagnostics. See the speaker documentation for diagnostics instructions.

Solving Problems

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Contents W . d e l l . c o m s u p p o r t . d e l l . c o m Abbreviations and Acronyms Contents Program is designed for an earlier Microsoft Windows Mail, Modem, and Internet ProblemsAdding or Replacing a Second Hard Drive Advanced TroubleshootingUsing Microsoft Windows XP System Restore Resolving Software and Hardware IncompatibilitiesAppendix Safety Instructions Safety InstructionsW . d e l l . c o m s u p p o r t . d e l l . c o m Microsoft Windows License Label Finding Information for Your ComputerTechnical support Downloads Drivers, patches, and software updatesSupport questions Online coursesPrinter Cable Setting Up a PrinterConnecting a Parallel Printer Setting Up and Using Your ComputerScrews Clips Parallel printer Cable Notches Connecting a USB PrinterParallel connector on computer USB connector on computer Setting Up a Home and Office NetworkConnecting to a Network Adapter Network wall jack Network cable Connecting to the InternetNetwork Setup Wizard Click Checklist for creating a networkIf you have a CD, click Use the CD I got from an ISP Setting Up Your Internet ConnectionClick Connect to the Internet Click Exact Copy How to Copy a CD or DVDUsing Blank CD-Rs and CD-RWs Copying CDs and DVDsClick Hardware and click Device Manager Hyper-ThreadingHelpful Tips Turn Off Computer Turn off computer window, click Turn off Booting to a USB DeviceTurning Off Your Computer Solving Problems Finding SolutionsW . d e l l . c o m s u p p o r t . d e l l . c o m See Finding Help Information Battery ProblemsDrive Problems Floppy drive problemsBack of floppy disk Write-protected Not write- protected CD drive problemsDVD drive problems Problems writing to a CD-RW driveHard drive problems Mail, Modem, and Internet ProblemsError Messages Computer stops responding General ProblemsSolid blue screen appears Other software problemsProgram stops responding Program crashes repeatedlyGeneral hardware problems Other technical problemsIeee 1394 Device Problems Mouse Problems Keyboard ProblemsNetwork Problems Speed light Power ProblemsNetwork integrity Printer Problems Scanner Problems No sound from speakers Sound and Speaker ProblemsIf the screen is blank Video and Monitor ProblemsNo sound from headphones If the screen is difficult to read Solving Problems Advanced Troubleshooting Diagnostic LightsLight Pattern Problem Description Suggested Resolution If the problem persists, contact Identified a faulty module orError If available, install properlyConnector or reinstalled all If the problem persists orDifferent connector and restart You have identified a faultyRequirements see Connector placementThat you are installing are Memory module/memoryStarting the Dell Diagnostics Dell DiagnosticsTab Function Dell Diagnostics Main MenuOption Function Identifying Drivers What Is a Driver?Reinstalling Drivers DriversClick Roll Back Driver Using Windows XP Device Driver RollbackManually Reinstalling Drivers Restoring Your Operating SystemRestoring the Computer to an Earlier Operating State Using Microsoft Windows XP System RestoreCreating a Restore Point Click System RestoreUsing Dell PC Restore by Symantec Click Performance and Maintenance and click System Enabling System RestoreClick Performance and Maintenance Click the System Restore tabAdvanced Troubleshooting On computers with an optional floppy drive Adding Parts Front and Back View of the ComputerFront View Computer. Instead, perform an operating system shutdown Back View Network jack Guide Removing the Computer CoverComputer cover Cover latch Back of computer Looking Inside Your Computer System Board Securing screw Filler bracket Adding CardsNot fully seated card Fully seated card Bracket Card Card cutoutCrossbar Adding or Replacing the AGP Card AGP card Card clip lever Slot connector Installing an AGP CardNotch Lever Tab Card clip AGP connector PCI connectorAdding or Replacing a Second Hard Drive Drive bracket Existing hard driveScrews Drive bracket Adding a Floppy Drive Bottom tab Side hinges Front panel Top tabMiddle tab Tabs Insert Top bracket screw Drive bracket Floppy drive Side hinges Front panel Adding a Second CD or DVD Drive Bottom tab Adding Parts Drive Alignment screws Insert TabsDrive Securing screw Side hinges Front panel DDR Memory Overview Memory Installation GuidelinesAdding Memory Installing Memory Notch Securing clips ConnectorReplacing the Computer Cover Appendix SpecificationsSystem Information Expansion BusDrives Ports and ConnectorsMemory Other factorsNetwork PowerVideo AudioEnvironmental System SetupOverview Keys Action Viewing SettingsSystem Setup Screens Changing Boot Sequence for the Current Boot Boot SequenceOption Settings Changing Boot Sequence for Future Boots Clearing Forgotten PasswordsReplacing the Battery Battery Battery socket Definition of Third-Party Software and Peripherals Definition of Dell-Installed Software and PeripheralsDell Technical Support Policy U.S. Only FCC Notices U.S. OnlyClass a Class B FCC Identification Information Contacting DellAppendix Appendix Appendix Appendix Appendix Appendix Appendix Area Codes Local Numbers, Toll-Free Numbers Appendix 100 101 102 103 104 105 106 Index 107 Index108 Index Index Help files accessing, 9Compatibility, 27 restore to previous operating Index 109 Wizard, 27 reinstalling, 47 scanner, 34 System RestoreWizards Program Compatibility Wizard Index 110