Lenovo 10075/3078, 10076/3079 Troubleshooting Audio Problems, Troubleshooting Software Problems

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2.Move any interfering devices away from the computer.

3.If the problem persists, consult with Lenovo Service.

5.2 Troubleshooting Audio Problems

Problem: No sound from integrated speakers.

Troubleshooting and problem resolution:

Adjust the windows volume control — 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. Adjust the volume, bass, or treble controls to eliminate distortion.

Reinstall the audio driver.

Disconnect headphones from the headphone connector — Sound from the speakers is automatically disabled when headphones are connected to the computer’s side-panel headphone connector.

Problem: No sound from headphones.

Troubleshooting and problem resolution:

Check the headphone cable connection — Ensure that the headphone cable is securely inserted into the headphone connector.

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.

5.3 Troubleshooting Software Problems

Problem: You are unable exit a running program normally.

Troubleshooting and problem resolution:

1.Open the Task Manager window by pressing Ctrl, Alt and Delete at the same time.

2.Select the Application tab, select the problem program, and then click the End Task button.

Problem: You need to install or uninstall a program.

Problem resolution:

During installation never abort the install process by powering the system off or through other drastic means. This can cause system program disorder or even failure during system initialization.

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Contents Lenovo C2/C3 Series Important Safety Information Page Contents Troubleshooting and Confirming Setup Troubleshooting Problems with Optical Drives Hard DisksChapter Using the Computer Hardware This chapter contains the following topicsFront view of the computer Memory card reader USB ports Optical drive Headphone connectorLeft and right views of the computer Computer stand Ethernet connector TV tuner port USB portsRear view of the computer Connecting your computer If your computer uses an AC adapterUSB connection USB connectorConnector F type Models are equipped with this connector MS/MS Pro/MMC/SD/SDHC/SDXC Important information about using the computer Wired keyboard User Guide Chapter Touch screen user instruction Touch Screen Calibration User Gesture Instructions for the Touch screen Basic Hand GesturesUser Guide Double Finger Right Click About 5 FP Zoom Operation Related Touch Screen Settings User Guide User Guide User Guide User Guide Chapter Using the Rescue System OneKey Recovery Driver and Application InstallationSystem Setup Method 1 Automatic InstallationCreate Recovery Disc System BackupSystem Recovery Chapter Using the Computer Software  Computer software instructionsBefore using this software, do the following Lenovo Dynamic Brightness systemLenovo Eye Distance System To use this software, do the followingUser Guide Troubleshooting and Chapter Confirming Setup  Troubleshooting and Problem ResolutionFollow these tips when you troubleshoot your computer Solving ProblemsTroubleshooting Display Problems Troubleshooting Audio Problems Troubleshooting Software ProblemsTroubleshooting Problems with Optical Drives and Hard Disks Special considerations for troubleshooting Windows Performing Daily Maintenance Tasks Cleaning the computer components