Sony Notebook User Guide
Using your notebook
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Combinations and functions with the <Fn> key
Combinations/Feature Functions
<Fn>+ (ESC): Standby
Puts the system into Standby mode, a power management state. To return
the system to the active state, press any key.
<Fn>+ (F3): speaker switch
Toggles the built-in speaker on and off.
<Fn> + (F4): speaker volume
Adjusts the built-in speaker volume.
To increase volume, press <Fn> and hold it down and press <F4>
repeatedly.
To decrease volume, press <Fn>+<Shift> and hold these keys down and
press <F4> repeatedly.
You can also increase or decrease the volume by turning the volume control
on the left of your notebook.
<Fn> + (F5): brightness control
Adjusts the brightness of the LCD.
To increase lightness intensity, press <Fn> and hold it down and press <F5>
repeatedly.
To decrease light intensity, press <Fn>+<Shift> and hold these keys down
and press <F5> repeatedly.
<Fn>+ / (F7)*: switch to the
external display
Toggles between the LCD, external display (connected to the monitor
connector) and both LCD and external display.
<Fn> + / (F8)*
Toggles between the LCD and both LCD and TV.