5.2 Troubleshooting Audio Problems

Problem: No sound from the 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 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.

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 the sound is not muted.

5.3 Troubleshooting Software Problems

Problem: You are unable to 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, 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 problems or even failure during system initialization.

User Guide 41

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Lenovo 2566 [B340] 10099, 97, 4749 [B545] manual Troubleshooting Audio Problems, Troubleshooting Software Problems

2568 [B540] 10101, 2566 [B340] 10099, 2567 [B345] 10100, 3363 [B540p] 10098, 4749 [B545] specifications

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