Sony VAIO PCG-Z1VAP User Manual page 106

Combinations and functions with the Fn key
Feature Function
Fn+F3 Toggles the built-in speakers off and on.
Fn+F4 Adjusts the built-in speaker volume. An on-screen display appears notifying you when a change occurs.
To increase volume, press Fn+F4 and then press
To decrease volume, press Fn+F4 and then press
Fn+F5 Adjusts the brightness of the computer screen (LCD).
To increase brightness, press Fn+F5 and then press
To decrease brightness, press Fn+F5 and then press
Fn+F7 Toggles the display between the computer screen (LCD), a connected external device, such as a monitor, flat-panel
display or projector, and both the LCD and external device.
Select one display at a time when playing a DVD. Connect the cable before you turn on the computer; otherwise, Fn+F7
may not work.
Fn+F12 Puts the system into Hibernate mode, a power management state. To return the system to normal
operating mode, press the power button. Hibernate mode consumes the lowest level of power.
Fn+Esc Puts the system into Standby mode, a power management state. To return the system to the active state,
press any key or the power button.
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