Sony PCG-GR390K - Manual (Page 18)

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Fn + Esc
Standby Puts the system into Standby mode, a power management
state. To return the system to the active state, press any key or
press the power button on your notebook.
Fn + E Ejects CD.
Fn + F Display control. Minimizes and maximizes the LCD screen.
If the default display resolution is reduced, this function
maximizes the display resolution to fit the screen size.
Maximizing the display screen enables you to view the
display at a greater resolution.
✍
Some functions are not available until Windows® launches.
Combinations/
Feature
Function