How To Select Mp3 Files; Controls Behind Faceplate - Boss Audio Systems 638B User Manual

Front panel controls
How to select MP3 files
Searching Track:
• Press "AS/PS", then search track is activated.
• Press "AUDIO" button, then the first digit will flash.
• Rotary "VOL knob to right or left", select first digit desired.
• Press "AUDIO" button, then the first digit is fixed and second digit will flash.
• Rotary "VOL knob to right or left", select 2'nd 3'rd respectively.
• Then automatically the song selected will start.
Searching File Name:
• Press "AS/PS" twice, then file search is activated.
• Press "AUDIO" button, then the first directory is displayed.
• Rotary "VOL knob to right or left", you can select the desired directory.
• Press "AUDIO" button again, then the directory is fixed and the first file name is displayed.
• Rotary "VOL knob to right or left", you can select the file you want.
• Press "AUDIO" button, then the song selected will start.
Searching Character:
• Press "AS/PS" 3 times, then character search mode is activated.
• Press "AUDIO" button, then "A" character is displayed.
• Rotary "VOL knob to right or left", you can select the desired letter.
• Press "AUDIO" button longer than 2 sec.
• The song with the same character you selected is displayed.
• Rotary "VOL knob to right or left", you can select the desired song.
• Press "AUDIO" button, then the song selected will start.

Controls behind faceplate

10
RESET
RESET Press this button with a ballpoint pen or other thin object.
The reset button is to be activated for the following reason:
Initial installation of the unit when all wiring is completed.
All the function button do not operate.
Error symbol on the display.
NOTE: If the unit does not function properly after you have
pressed the RESET button, clean the socket and the connec-
tor on the rear of the front panel with a cotton swab soaked
in isopropyl alcohol and try again.
CD Loading/unloading slot
LED This LED flashes when the faceplate is
removed.