Boss Audio Systems 620UA - Manuals

To Detach the Control panel 1. Press the release button ( ) on the front panel and pull off the control panel. To Install the Control Panel To install the control panel, insert the panel into the housing and make sure the panel is properly installed. Otherwise, abnormality occurs on the display or s...

OPERATION LOCATION OF KEYS SWITCHING ON/OFF THE UNIT Press /MUT button (3) to turn on the unit. When the system is on, press and hold /MUT button (3) to turn off the unit. FACEPLATE RELEASE Press button (2) to release the removable faceplate. SOUND ADJUSTMENT Press SEL button (4) shortly to select t...

7 OPERATION MUTE Press /MUT button (3) to mute down the sound instantly. Press again to resume the sound. LOUDNESS Press BAND/LOU/ENT button (13) for several seconds to reinforce the bass output and “LOUD” will appear on the display. Press it for several seconds again to release this function. MODE ...

8 OPERATION PAUSING PLAYING Press PAU button (14) to pause the playing. Press it again to resume play. PREVIEWING ALL TRACKS Press SCN button (15) to play first several seconds of each track. Press again to stop intro and listen to track. REPEATING THE SAME TRACK Press RPT button (16) to continuousl...

10 TROUBLE SHOOTING Before going through the checklist, check wiring connection. If any of the problems persist after checklist has been made, consult your nearest service dealer. Symptom Cause Solution No power. The car ignition switch is not on. If the power supply is connected to the car accessor...