Sony PCG-NV290 VAIO User Manual page 138

VAIO Computer Quick Start
❑
You can also press Fn+F4 to increase the volume. If you double-click the
Volume icon
the Volume Control window.
✍
The Volume icon
volume dial control is set to an audible level.
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on the Windows® taskbar, you can view your changes on
and Fn+F4 and Fn+F3 key combinations will work only when the