JVC KD-SX939/SX930 manual Controlling the volume automatically, This function is ONLY FOR KD-SX939

Controlling the volume automatically

This function is ONLY FOR KD-SX939.

This unit change the volume level automatically (at 3 possible levels) based on the driving speed of your car by detecting the alternator’s generating frequency (Audio Cruise).

If you want to use this function, follow the procedures below. (When shipped from the factory, this mode is set to “OFF.”)

1

1

Select the proper cruise mode for your car.

CRUISE

•Each time you press the button, the Audio Cruise mode changes as follows.

•CRUISE 1: Select this if your car is relatively quiet.

•CRUISE 2: Select this if your car is relatively loud.

The volume increase rate is twice as much as that of the CRUISE 1 setting.

•OFF: Cancels Audio Cruise.

When this function is turned on (the CRUISE indicator lights up on the display), the proper volume level is automatically selected among the 3 possible levels according to the driving speed, and the selected level is shown on the display.

When the driving speed increases.

CRUISE CRUISE CRUISE

When the driving speed decreases.

20