User Manual

33 Chapter 2
2.4.7.1 Special Function by “Fn” + main Function
The “Fn” key is used in combination with other keys to type special
characters and perform system functions.
Table 2.5: Special Function key define
Key Sequence
Fn + Main
Function
Definition
Backlight
Increase
Increase the LED backlight brightness of
display screen(Lighter)
You must press key, then press
key to increase backlight bright-
ness each time.
Backlight
Decrease
Decrease the LED backlight brightness of
display screen (darker)
You must press key, then press
key to decrease backlight
brightness each time.
Page Down
Move the cursor down one page. The
cursor will move continuously if button is
pressed continuously.
You must press key, then press
key to cursor down one page
each time.
Page Up
Move the cursor up one page. The cursor
will move continuously if button is pressed
continuously.
You must press key, then press
key to cursor up one page each
time.
Audio Mute
Toggle the audio mute/on
You must press key, then press
key to enable audio mute or turn
on audio function each time.