BOSS 638BA User Manual

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638BA

MP3-CompatibleAM/FM CD Receiver

U S E R ’ S M A N U A L

CONTENTS

 

Installation

2

DIN front-mountinstallation

3

DIN rear-mountinstallation

4

Removing the head unit

4

Detaching the front panel

5

Replacing the front panel

5

General controls

6

Radio controls

7

Audio controls

8

CD/MP3 Playback controls

9

How to select MP3 files

10

Controls behind faceplate

10

USB and Front side AUX IN operations

11

Remote control functions

12

How to use bluetooth in your car audio

13-14

Wiring diagram

15

Troubleshooting

16

Specifications

17

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Installation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Before removing the bezel, press the

RELEASE button to remove the front panel.

press RELEASE to release

Release Button

the front panel...

 

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press RELEASE to release

Release Button

the front panel...

 

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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 clock display starts flashing.

2.Rotating VOL left to change minutes, VOL right to change hours.

3.Press (DISP) button to start clock

The Liquid Crystal Display will display the current state of the unit.

SCROLL MODE When press the AUDIO button for more than 2 seconds, it is activated as selecting mode of these function.

2 sec.

AUDIO LOUD

AUDIO WOOF

AUDIO

ESP

AUDIO MULT AUDIO SCROLL

 

SCROLL 1/2

AUDIO DSP

VOL

SCROLL 1: Unit displays song details but no text scrolling.

SCROLL 2: Unit displays song details and scrolls the text information to the left.

BEEP MODE When press the AUDIO button for more than 2 seconds, it is activated as selecting mode of these function.

2 sec.

DSP

AUDIO LOUD

AUDIO WOOF

AUDIO

ESP

AUDIO MULT AUDIOSCROLL

AUDIO

AUDIO

BEEP

VOL

BEEP ON/OFF

 

 

 

BEEP ON: BEEP sound can hear from speaker when the buttons are pressed.

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RADIO CONTROLS

AS/PS Select six strong stations and store them in current band.

1.Select a band (if needed)

2.Hold A/PS button for more than three seconds. The new stations replace stations already stored in that band.

Preset Scan

Scan stations 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 five seconds at each station. Touch A/PS again to stop scanning when desired station is reached.

SCAN This key is operated as RADIO SCAN. The operation is similar as normal search but different thing is holding 5 seconds on every station detected in RADIO SCAN mode.

BAND Push this switch to select the desired band. Selection is made in regular sequence as FM-AM.

STATION PRESETS Six numbered preset button store and recall stations for each band.

Storing a station:

1.Select a band (if needed)

2.Select a station

3.Hold a preset button longer than one second. Preset station number appears in the display when station is saved.

Recall a station:

1.Select band (if needed)

2.Press a preset button for less than one second to select stored station.

TUNE BUTTONS When pressed for less than 1 second, these keys operate as SEEK tuning mode.

When pressed longer than 1 sec., they are operated as MANUAL tuning mode. If the keys are not pressed for 3 seconds, they will return to SEEK mode again.

MENU MODE When press this button for more than 2 seconds, it is activated as selecting mode of these function.

STEREO/MONO MODE When press AUDIO button for more than 2 seconds, it is activated as selecting mode of these function.

2 sec.

DSP

AUDIO

LOUD

AUDIO WOOF

AUDIO

ESP

AUDIO MULT AUDIOSCROLL

AUDIO

AUDIO

BEEP

AUDIO

STEREO

VOL

STEREO ON/OFF

 

 

When FM stations are weak and are disturbed, listening can be improved by selecting MONO.

LOCAL/DX MODE When press AUDIO button for more than 2 seconds, it is activated as selecting mode of these function.

2 sec.

DSP

AUDIO

LOUD

AUDIO

WOOF

AUDIO

ESP

AUDIO MULT AUDIOSCROLL

AUDIO

AUDIO

BEEP

AUDIO

STEREO

AUDIO

LOCAL

VOL

DX/LOCAL

 

“Local” position in areas with strong signals to let radio stop at only strong stations during manual tuning (LOC appears). Press to Distant position in areas with weak signals to listen to all stations.

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Front panel controls

AUDIO CONTROLS

SUBWOOFER Press this button to engage subwoofer output

SOURCE By pressing this key, user can select AUX/TUNER/CD-MP3/

USB mode.

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.

DSP MODE When press AUDIO button for more than 2 seconds, it is activated as selecting mode of these function.

2 sec.

AUDIO DSP

VOL

POP ---ROCK---CLASSIC---FLAT---DSP OFF

 

POP, ROCK, CLASSIC, FLAT or DSP OFF selected by rotary VOL left or right

LOUD MODE When press AUDIO button for more than 2 seconds, it is activated as selecting mode of these function.

2 sec.

AUDIO DSP

AUDIO LOUD

VOL

LOUD ON/OFF

 

 

 

LOUD ON/OFF mode is selected by rotary VOL left or right. Increase the level

of bass output.

SUBWOOFER When press AUDIO button for more than 2 seconds, it is activated as selecting mode of these function.

2 sec.

AUDIO DSP

AUDIO LOUD

AUDIO WOOF

VOL

WOOF ON/OFF

 

 

 

 

SUBWOOFER output selected by rotary VOL left or right.

MUTE Press this button to silence the receiver. Press again to return to normal operation.

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CD/MP3 PLAYBACK CONTROLS

EJECT Press to eject CD

TUNE/TRACK BUTTONS Press and release to advance to next track or to return to the beginning of the current track (track number will be displayed). Press and hold to fast forward or reverse. Play will begin at the point when you release the button.

ESP MODE When press AUDIO button for more than 2 seconds, it is activated as 10 sec. or 40 sec. of ESP mode can be selected.

2 sec.

DSP

AUDIO LOUD

AUDIO

AUDIO

WOOF

AUDIO

ESP

VOL

ESP 10/40

 

 

 

 

PAUSE Press to pause CD playback. Press again to resume playback

REPEAT Press and release to continuously repeat same track. Press again to stop repeat cycle.

+10/-10TRACK UP SELECT: (In case of MP3 files)

-10/+10TRACK DOWN SELECT: (In case of MP3 files)

SHUFFLE Press to play ALL tracks on the CD in random order.

CD SCAN Press to hear first several seconds of each track on current disc. Press again to stop intro and listen to intro last previewed.

TOP Press to play first song of disc.

CD/MP3 Operation

To PLAY a CD gently insert a CD with the label side up into the disc slot. It will automatically load and begin playing the first track.

To EJECT a CD press EJECT to stop the CD playback and eject the CD from the slot. The receiver will automaticvally switch to radio mode.

To PAUSE a CD press PAUSE to stop playback temporarily. Press again to resume playback.

To SKIP TRACKS press theorkey to choose the next or preceding track.

To FAST FORWARD or REVERSE press and hold theorkey to the desired location on the disc. Releasing the button starts playback at the location.

To REPEAT a TRACK press REPEAT to continuously repeat the current track. Press again to return to normal playback mode.

To PREVIEW ALL TRACKS press CD SCAN to play the first several seconds of each track. Press it again to stop an play the current track being previewed.

To PLAY TRACKS IN RANDOM ORDER press SHUFFLE to play ALL tracks on the CD in random mode. Press again to cancel this function.

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How to select MP3 files

Searching Track:

Press and hold “AS/PS”, then search track is activated. First digit will flash.

Rotate “VOL knob to right or left”, select first digit desired.

Press “AUDIO” button, then the first digit is fixed and second digit will flash.

Rotate “VOL knob to right or left”, select 2’nd 3’rd respectively.

Then automatically the song selected will start.

Searching Directory:

Press and hold “AS/PS”. Press “AS/PS” again, then directory search is activated.

Rotate “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.

Rotate clockwise to select the desired song.

Press “AUDIO” button, then the song selected will start.

Searching File Name:

Press and hold “AS/PS”. Press “AS/PS” twice, then character search mode is activated. “*” character is displayed.

Rotate “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.

Rotate clockwise to select the desired song.

Press “AUDIO” button, then the song selected will start.

Controls behind faceplate

AUX IN

RESET

CD Loading/unloading slot

LED This LED flashes when the faceplate is removed.

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 connector on the rear of the front panel with a cotton swab soaked in isopropyl alcohol and try again.

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