General Controls - Boss Audio Systems 638BA User Manual

Front panel controls

GENERAL CONTROLS

POWER Press any button to turn unit ON. To turn
head unit off, press and hold POWER.
RELEASE Press to release and remove the front panel.
DISP Selects radio frequency or clock display.
To set the clock:
1. With clock display selected, hold down (DISP) button until
2. Rotating VOL left to change minutes, VOL right to change
3. Press (DISP) button to start clock
The Liquid Crystal Display will display the current state of the unit.
BEEP MODE When press the AUDIO button for more than 2
seconds, it is activated as selecting mode of these function.
BEEP ON: BEEP sound can hear from speaker when the but-
tons are pressed.
6
clock display starts flashing.
hours.
2 sec.
ESP
SEL SEL MULTI SEL BEEP VOL BEEP ON/OFF
AUX IN