Boss Audio Systems 638B User Manual Download Page 9

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Front panel controls

AUDIO BUTTON and ROTARY CONTROL Press the button repeatedly to

access Volume, Bass, Treble, Balance and Fader functions. Then use the

knob to adjust the selected function.

AUDIO CONTROLS

EQ Press repeatedly to cycle through ﬁve modes: POP M, ROCK M,

CLASS, FLAT M or DSP OFF.

SUB Press and hold to engage subwoofer output.

LOUD Press this button to increase the level of bass output.

SOURCE By pressing this key, user can select AUX/TUNER/CD-

MP3/USB or MMC/SD mode.

MUTE Press to silence the receiver. Press again to

return to normal operation.

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Summary of Contents for 638B

Page 1: ...638B cover indd 1 16 1 2006 11 17 15...

Page 2: ...d unit Detaching the front panel Replacing the front panel General controls Radio controls Audio controls CD MP3 Playback controls How to select MP3 les Controls behind faceplate USB and SD MMC operat...

Page 3: ...2...

Page 4: ...3...

Page 5: ...4 Release Button press RELEASE to release the front panel Before removing the bezel press the RELEASE button to remove the front panel...

Page 6: ...5 Release Button press RELEASE to release the front panel...

Page 7: ...ing VOL left to change minutes VOL right to change hours 3 Press DISP button to start clock BEEP MODE When press the SEL button for more than 2 sec onds it is activated as selecting mode of these func...

Page 8: ...s stored in current band 1 Select a band if needed 2 Touch A PS for more than one second but less than three seconds Radio pauses for ve seconds at each station Touch A PS again to stop scanning when...

Page 9: ...ected function AUDIO CONTROLS EQ Press repeatedly to cycle through ve modes POP M ROCK M CLASS FLAT M or DSP OFF SUB Press and hold to engage subwoofer output LOUD Press this button to increase the le...

Page 10: ...cvally switch to radio mode To PAUSE a CD press PAUSE to stop playback temporarily Press again to resume playback To SKIP TRACKS press the or key to choose the next or preceding track To FAST FORWARD...

Page 11: ...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 sele...

Page 12: ...ER GUARANTEE THAT ALL DEVICES WILL BE RECOGNIZED NOR THAT ALL OPERATING OPTIONS THAT ARE POSSIBLE IN THEORY WILL ACTUALLY WORK CD MULTI ON OFF SEL 2 sec MULTI ESP 12s 45s SEL 2 sec ESP SEL ESP SEL ESP...

Page 13: ...mber will be displayed Press and hold to fast forward or reverse play will begin at the point when you release the button DISPLAY To set clock Press and hold this button then the time will be ashing B...

Page 14: ...ing call 3 You can hear ring tone from the car s speaker if there s an incoming call Press TALK button once to receive call Press TALK button longer than 2 seconds will disconnect the call 4 You can t...

Page 15: ...WHITE BLACK GREEN GREEN BLACK ISO A B PLUG POWER CONTROL BLUE BLUE WHITE IGNITION SWITCH 12 V RED CONSTANT 12 VOLTS YELLOW BLACK GROUND ANTENNA CONTROL L WHITE SUB WOOFER LINE IN R RED L WHITE LINE O...

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Page 17: ...x 4 channels GENERAL Power Supply 12V DC 10 8 15 6V allowable Chassis dimensions 7 x 6 1 4 x 2 178 x 159 x 51 mm Weight 4 4 lb 2 kg Instructions on environment protection Do not dispose of this produc...

Page 18: ...638B cover indd 2 16 1 2006 11 17 16...