Lenovo 57315616 manual Troubleshooting Touch screen, Troubleshooting Audio Problems

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Problem: Ripple on screen.

Troubleshooting and problem resolution:

1.Check to see if any of the following devices are located less than one meter from the computer: refrigerators, electric fans, electric dryers, UPS systems, regulators, fluorescent lamps or other computers that may be generating magnetic interference.

2.Move any interfering devices away from the computer.

3.If the problem persists, contact Lenovo Service.

Troubleshooting Touch screen

Problem: The touch screen reacts, but not where you are touching it.

Troubleshooting and problem resolution:

Touch Screen Calibration:

1.In Control Panel, select “Hardware and Sound”.

2.In “Hardware and Sound” window, select “Tablet PC Settings”.

3.In “Tablet PC Settings” dialogue, click “Calibrate” button.

Troubleshooting Audio Problems

Problem: No sound from the integrated speakers.

Troubleshooting and problem resolution:

Adjust the Windows volume control — select the speaker icon from the

Settings Charm or click the arrow on taskbar to show the hidden icons in Windows desktop mode, then click the speaker icon. Ensure that the volume is turned up and the sound is not muted. Adjust the volume, bass, or treble controls to eliminate distortion.

Reinstall the audio driver.

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

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Contents Lenovo C4/C5 Series Important Safety Information Page Contents Using the Rescue System Using the Computer Hardware Front view of the computer Left and right views of the computer Rear view of the computer Installing the computer stand Computer stand Basic connector instructions Connecting your computer Important information about using the computer Connecting to the Internet Wired keyboard selected models only User Guide Using Windows Shutting down the computer Switching between the main Windows 8 interfacesCharms Bar Opening other system programs Switching between appsClosing an app Windows Help and SupportUser Guide Touch screen instructions  Touch Screen CalibrationTouch Screen Calibration User Gesture Instructions for the Touch screenBasic Hand Gestures User Guide User Guide Related Touch Screen Settings Precautions when using the Touch Screen User Guide Using the Rescue System OneKey Recovery Method 2 Manual Installation Driver and Application InstallationMethod 1 Automatic Installation User Guide Using the Software Registration Service and WarrantyLenovo Support User GuideTroubleshooting Confirming Setup Solving Problems Troubleshooting Display ProblemsTroubleshooting Touch screen Troubleshooting Audio ProblemsTroubleshooting Software Problems Troubleshooting Problems with Optical Drives and Hard Disks Special considerations for troubleshooting Windows Bios setup utility Performing Daily Maintenance Tasks Hardware Replacement Guide Safety information for replacing CRUs OverviewAdditional information resources Tools requiredHandling static-sensitive devices Removing the stand base Replacing hardwareGeneral information Removing the foot cover Replacing a memory module Replacing the hard disk drive User Guide Replacing the optical drive User Guide Replacing the adapter Connect the new adapter as shown Replacing the keyboard and mouse To replace the keyboardAppendix DeclarationTrademarks Energy Star Statement 10104/6595 10110/6267Enabling ErP compliance mode