Lenovo IdeaCentre A520 User Guide - Page 34

Troubleshooting Touch screen, Troubleshooting Audio Problems, In Hardware and Sound window - all in one desktop pc

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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. User Guide 29

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29
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.