Sony PCG-NV290 VAIO User Manual page 136

VAIO Computer Quick Start
❑
If you have connected an audio cable to the Headphone jack, disconnect the
cable and use the speaker cable that was supplied with the speakers.
❑
You may need to install or reinstall speaker driver software. Use the
Application Recovery CD(s) to reinstall the drivers. See "Using the
Application Recovery CD(s)" for more information.
❑
If you are using battery power, make sure the battery is properly inserted and
is charged. See "Using the Battery" for more information.
Why can't I hear sound from my speakers?
❑
If you are using battery power, make sure the battery is properly inserted and
is charged. See "Using the Battery" for more information.
❑
If you are using a program that has its own volume control, make sure the
volume control is properly set. See that program's help guide for more
information.
❑
Your speakers may be set to mute, the volume setting may be too low, or the
audio option may be disabled. See "Adjusting the volume" and "Enabling
the audio feature" for more information.
Why don't the Fn+F3 or the Fn+F4 key combinations work?
The computer may not recognize the Fn+F3 and Fn+F4 key combinations if the
correct speakers are not selected. Follow these steps:
1 Right-click the Volume icon
Properties.
2 Select the Audio tab, and click Advanced in the Sound Playback box. The
Advanced Audio Properties window appears.
3 Click the Speakers tab, if it is not already selected.
4 Select the correct stereo speakers from the Speaker setup shortcut menu.
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on the taskbar, and select Adjust Audio