User's Manual

3. Operation

Settings ? Display Settings ? Contrast ? +/-

Contrast

Adjusting Display Brightness

You can adjust the backlight level of the LCD display:

Settings ? Display Settings ? Brightness ?

+/-

Brightness

Changing the Backlight Color

You can change the color of the backlight to suit your car’s

interior. CK390 has 5 preset colors to choose from:

Settings ? Display Settings ? Screen Color

? White

Available colors: Orange, Green, Blue, Red.

You can also self-define the backlight color as follows:

Settings ? Display Settings ? Screen Color

? User Define