Sony PCG-R505JSP User Manual

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If you switch user accounts during a computing session, the Fn+F7 and Fn+F8 key 
functionality (if available on your computer) will be interrupted. To switch to an 
external display or monitor, see “Selecting the Display Mode” for more information.

Fn+

(F3)

Speaker switch

Toggles the built-in speaker off and on.

Fn+

(F4)

Speaker volume

Adjusts the built-in speaker volume.
To increase volume, press Fn+F4, then

or

.

To decrease volume, press Fn+F4, then

or

.

Fn+

(F5)

Brightness
control

Adjusts brightness of the LCD.
To increase light intensity, press Fn+F5, then

or

.

To decrease light intensity, press Fn+F5, then

or

.

Fn+

/

(F7)
Switch to the
external display

Toggles through the LCD and external display.