Lenovo IdeaCentre A520 All-in-One Instrukcja Użytkownika Pobierz pdf (Strona 34)

User Guide

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.

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—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.

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Lenovo IdeaCentre A520 All-in-One Instrukcja Użytkownika Strona 34