Lenovo 3419, 3398, 3397, 3399, 3414, 3396, 3416 Troubleshooting, Audio problems, No audio in Windows

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7.Use an antivirus program to see if your computer has been infected by a virus. If the program detects a virus, remove the virus.

8.If none of these actions solve the problem, seek technical assistance. See Chapter 11 “Getting information, help, and service” on page 75 for more information.

Troubleshooting

Use the troubleshooting information to find solutions to problems that have definite symptoms.

If the symptom your computer is experiencing occurred immediately after a new hardware option or new software installed, do the following before referring to the troubleshooting information:

1.Remove the new hardware option or software. If you must remove the computer cover to remove a hardware option, have the computer serviced. For your safety, do not operate the computer with the cover removed.

2.Run the diagnostic programs to ensure your computer is operating correctly.

3.Reinstall the new hardware option or software.

Select the problem your computer is experiencing from the following list:

•“Audio problems” on page 59

•“CD problems” on page 61

•“DVD problems” on page 62

•“Intermittent problems” on page 63

•“Keyboard, mouse, or pointing device problems” on page 63

•“Monitor problems” on page 65

•“Networking problems” on page 67

•“Option problems” on page 69

•“Performance and lockup problems” on page 70

•“Printer problems” on page 72

•“Serial port problems” on page 72

•“Software problems” on page 72

•“USB problems” on page 73

Audio problems

Select your symptom from the following list:

•“No audio in Windows” on page 59

•“An audio disc or AutoPlay-enabled disc does not automatically play when it is inserted into a drive” on page 60

•“Sound comes from one external speaker only” on page 60

•“No audio in DOS applications or games” on page 60

No audio in Windows

Symptom: No audio in Windows

Actions:

Chapter 10. Troubleshooting and diagnostics 59

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Contents ThinkCentre Edge User Guide Third Edition September Copyright Lenovo Contents Appendix A. Notices Iii Iv ThinkCentre Edge User Guide Static electricity prevention Important safety informationService and upgrades Extension cords and related devices Power cords and power adaptersHeat and product ventilation Plugs and outletsExternal devices Operating environment Modem safety informationLaser compliance statement Power supply statementCleaning and maintenance ThinkCentre Edge User Guide Product overview FeaturesConnectivity System management featuresInput/Output I/O features Power supplyPreinstalled operating system Security featuresPreinstalled software programs Lenovo programs SpecificationsAccessing Lenovo programs on the Windows 7 operating system Program Icon name Accessing Lenovo programs from Control PanelFingerprint Software Accessing Lenovo programs on the Windows 8 operating systemAn introduction to Lenovo programs Communications UtilityPower Manager Lenovo SettingsLenovo Solution Center Password ManagerView Management Utility System UpdateLocations Connector Description Hdmi connector Locating connectors on the rear of your computerMachine type and model label Adjusting the computer standFollowing is a sample of the machine type and model label Where can I find help about the Windows operating system? Using your computerFrequently asked questions Accessing Control Panel on the Windows 8 operating systemUsing a fingerprint reader Using the keyboardUsing Windows shortcut keys Using the blue ThinkVantage buttonAdding the volume icon to the taskbar Using the wheel mouseAdjusting audio Setting the volume from the desktopHandling and storing CD and DVD media Setting the volume from Control PanelUsing CDs and DVDs Sound section, click Adjust system volumeRecording a CD or DVD Using the single-touch and multi-touch featurePlaying a CD or DVD Using the multi-touch feature Using the single-touch featureComfort Accessibility and comfortYou and your computer Arranging your workspaceElectrical outlets and cable lengths Glare and lightingAir circulation Moving your computer to another country or region Voltage-selection switchRegister your computer with Lenovo Replacement power cords Security Security featuresAttaching an integrated cable lock Using passwordsBios passwords Protecting data against viruses Windows passwordsUsing and understanding firewalls ThinkCentre Edge User Guide Removing and reinstalling the system stand hinge cover Installing or replacing hardwareInstalling or replacing hardware Installing external optionsRemoving the system stand hinge cover Removing and reinstalling the system stand Removing the system stand Removing the rubber piece from each foot stand Removing and reinstalling the foot standsReinstall the rubber piece on each foot stand Replacing the USB keyboard or mouse Replacing the wireless keyboardInstalling the keyboard batteries Replacing the wireless mouseInstalling or replacing hardware Obtaining device drivers Creating and using recovery media Recovery informationRecovery information for the Windows 7 operating system Performing a backup operation Performing backup and recovery operationsCreating recovery media Using recovery mediaClick the Restore your system from a backup icon Using the Rescue and Recovery workspacePerforming a recovery operation Creating a rescue medium Creating and using a rescue mediumUsing a rescue medium Reinstalling preinstalled device drivers Reinstalling preinstalled applications and device driversReinstalling preinstalled applications Solving recovery problems Reinstalling software programsReinstalling device drivers Refreshing your computer Recovery information for the Windows 8 operating systemThinkCentre Edge User Guide Password considerations Using the Setup Utility programStarting the Setup Utility program Viewing and changing settingsEnabling or disabling a device Power-On PasswordAdministrator Password Setting, changing, and deleting a passwordSelecting or changing the startup device sequence Exiting the Setup Utility programSelecting a startup device Selecting a temporary startup deviceThinkCentre Edge User Guide Updating system programs Using system programsUpdating flashing the Bios from a disc Click Downloads and drivers Updating flashing the Bios from your operating systemGetting the latest device drivers for your computer Preventing problemsUsing System Update Keeping your computer currentBasics Cleaning your computerDisplay screen ComputerKeyboard Optical mouseMoving your computer Good maintenance practicesCleaning a liquid crystal display LCD surface Cleaning a glass-screen surfacePreventing problems ThinkCentre Edge User Guide Basic troubleshooting Troubleshooting and diagnosticsTroubleshooting procedure No audio in Windows TroubleshootingAudio problems No audio in DOS applications or games Sound comes from one external speaker onlyCD or DVD does not work CD problemsNo audio or intermittent audio while playing DVD movie DVD problemsBlack screen instead of DVD video DVD movie will not playAll or some keys on the keyboard do not work Intermittent problemsKeyboard, mouse, or pointing device problems Invalid disc or no disc found messageClick Hardware and Sound Click Devices and Printers Mouse or pointing device does not workPointer on the screen does not move smoothly with the mouse Fingerprint reader does not workWrong characters appear on the screen Monitor problemsWireless keyboard does not work Image is discolored Image appears to be flickeringClick Start Control Panel Click Hardware and Sound Networking problemsEthernet problems Your computer cannot connect to the networkAdapter stops working for no apparent reason Wireless LAN problemWake on LAN feature is not working An option that was just installed does not work Option problemsWireless WAN problem Bluetooth problemClick Start Computer Performance and lockup problemsAn option that previously worked does not work now Insufficient free hard disk drive spaceExcessive number of fragmented files Click Optimize Printer problemsSerial port problems Software problemsSoftware does not work as expected USB problemsLenovo Solution Center Getting information, help, and service Lenovo Support Web site Help and serviceUsing the documentation and diagnostic programs Calling for servicePurchasing additional services Using other servicesThinkCentre Edge User Guide Appendix A. Notices Trademarks Federal Communications Commission Declaration of Conformity Appendix B. Regulatory informationExport classification notice Electronic emissions noticesThinkCentre Edge User Guide Additional regulatory information ThinkCentre Edge User Guide Recycling information Appendix C. Weee and recycling informationImportant Weee information Recycling information for Brazil Battery recycling information for TaiwanBattery recycling information for the European Union ThinkCentre Edge User Guide Ukraine RoHS China RoHS Turkish RoHSIndia RoHS Windows 7 or Windows 8 operating system Appendix E. Energy Star model informationThinkCentre Edge User Guide Kullanım hatalarına ilişkin bilgiler İmalatçı ya da ithalatçı firmaya ilişkin bilgilerBakım, onarım ve kullanımda uyulması gereken kurallar Taşıma ve nakliye sırasında dikkat edilecek hususlarBağlantı ve montaja ilişkin bilgiler Bdh Bilişim Destek Hizmetleri San.Ve Tic Garanti Hizmetinin Alınabileceği MerkezlerBdh Bilişim Destek Hiz. San. Ve Tic. A.Ş Destek Bilgisayar Ve İletişim Hiz. Tic. A.ŞYedi Yirmidört Bilişim Hizmetleri Ticaret A.S Bdh Bilişim Destek Hizmetleri San.Ve Tic.AşBilgi Birikim Sistemleri Elktr. ve Bilg Bdh Bilişim Destek Hizmetleri San.Ve Tic.A.Ş Adapa Bilgi Sistemleri Tur.San. Ve Tic.A.ŞBdh Bilişim Destek Hizmetleri San.Ve Tic. A.Ş Bdh Bilişim Destek Hizmetleri Sanayi Ve Ticaret A.ŞŞanliurfa Index Password Administrator Considerations