Sony VGC-V517G VAIO User Manual page 135

About the Speakers
Why is there no sound in any software program?

Check that the speakers are plugged into the Headphones jack.

If your speakers have a mute button, verify that it is turned off.
 If your speakers are powered by batteries, verify that the batteries are inserted properly and that they are
charged.

If your speakers use an external power source, verify that the power cord is plugged into a grounded wall outlet or
power strip.

If your speakers have volume control, check the volume level.

You may not hear sound from your speakers if headphones are connected to your computer.
 If the software program you are using has its own volume control, check that the volume is turned up.
 Check the volume controls in the Windows
1. Click Start in the Windows taskbar, then select Control Panel.
2.
Select Sounds, Speech, and Audio Devices, then click Adjust the system volume.
3.
From the Volume tab, adjust the Device volume by moving the slider bar to the desired sound level.
Verify that the Mute option is not selected.

Check that the Mute check box is not selected in the Volume Control window.

The sound driver(s) may not be working properly.
operating system using these steps:
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