Sony PCG-VX89 VAIO User Guide (primary manual) User Manual page 116

VAIO Computer Quick Start
2 In the Volume Control column, move the slider up to increase the
volume. If Mute all is selected, click the check box to cancel it.
✍
Unlike the Volume icon
the speakers or headphones.
❑
You can also press Fn+F4 to increase the volume. If you double-click the
Volume icon
the Volume Control window.
✍
The Volume icon
is set to an audible level.
116
, the volume dial control adjusts only the sound level from
on the Windows® taskbar, you can view your changes on
and Fn+F4 shortcuts will work only when the volume dial control