Reference

Combinations and Functions with the Fn Key

Press and hold down the Fn key and another key simultaneously to perform a keyboard shortcut action.

For example, to turn off the sound: Fn+F2 → Press and hold down the Fn key, then press the F2 key.

Some keyboard functions can only be used while Windows is running.

Fn + (F1)

Disables and enables the touch pad. [Details]

Fn + (F2)

Turns on and off the built-in speakers or the headphones.

Fn + / (F3/F4)

Press the button repeatedly to adjust the volume level of the built-in speakers and the headphones. [Details]

To decrease the volume, press the Fn+F3 keys.

To increase the volume, press the Fn+F4 keys.

Fn + / (F5/F6)

Press the button repeatedly to adjust the LCD brightness of your computer screen. [Details]

To decrease lighting intensity, press the Fn+F5 keys.

To increase lighting intensity, press the Fn+F6 keys.

Fn + (F7)

Switches the display output to an external display.
Press the Fn+F7 keys several times to select the desired display output destination, and then press the Enter key to confirm. [Details]

Computer only
Displays the image only on the computer screen.

Duplicate
Displays the same images on the computer screen and an external display.

Extend
Extends your desktop across an external display. The computer screen and external display function as a single desktop. (Multiple Monitors)

Projector only
Displays the images only on an external display.

If a docking station (supplied or optional) is connected to your VAIO computer, the above options change as follows:

Computer only
Displays the image only on the computer screen.

Duplicate
Displays the same images on the computer screen and an external display connected to the computer.

Extend
Displays the different images on the computer screen and external displays.

External display only
Displays the images only on external displays connected to the docking station.

Fn + / (F9/F10)

Changes the size of an image or a document displayed on the running software.
To zoom out, press the Fn+F9 keys.

To zoom in, press the Fn+F10 keys.

This function may not be available depending on the software you use.

Fn + (F12)

Cuts off power to most of your VAIO computer, including LCD and CPU (Hibernate mode).

Fn + Num Lk (Num Lock)

Activates the numeric keypad to enter numbers.

Fn + Scr Lk (Scroll Lock)

Works differently depending on the software you use. Refer to the help file included with the software for more information.

Fn + Pg Up (Page Up)

Goes to the previous page.

Fn + End (End)

Moves the cursor to the end of a line or page.

Fn + Pg Dn (Page Down)

Goes to the next page.

Fn + Home (Home)

Moves the cursor to the top of a line or page.