Boss Audio Systems 550B User manual

USER'S MANUAL
550B
BLUETOOTH® I MP3-COMPATIBLE CD
AM/FM RECEIVER
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Installation
Installation Procedures
1. First complete the electrical connections and then check for correctness.
2. Disconnect the battery negative terminal of vehicle before beginning
installation.
3. Remove 2 transport CD deck screws before use.
Insert mounting collar into the dashboard and bend the mounting
tabs out with a screwdriver.
Make sure that lock lever is flush with the mounting collar( not
projecting outward).
Installation Opening
This unit can be installed in any dashboard Having an opening as shown
below.
2.05 inch
7.20 inch
Bracket key
Plastic trim out
Bracket key
HEX BOLT
SPRING WASHER
PLAIN WASHER
TAPPING SCREW
HEX NUT
DASH BOARD
METAL MOUNTING STRAP
CONSOLE
MOUNTING SLEEVE
Befor using, please
remove 2 transit
screws.
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1----

Installation
Connect all wiring harness and slide the head unit into the mounting
collar until it clicks into place.
- Only use speakers with 4 ohms impedance.
- +12V DC Negative Ground.
- The maximum current of the Amp remote trigger is 200mA.
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Wiring Connections
15
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Radio Antenna
White: AUX-Left input
Red: AUX-Right input
ACC + (Red)
GND - (Black)
ANT + (Blue)
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Green
3XUSOH Rear Right
Speaker
Front Right
Speaker
Rear Left
Speaker
Front Left
Speaker
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Green/Black
White
White/Black
Gray
Gray/Black
15A

Turn Unit on/off, Change the Source
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button to turn off the unit.
3UHVVWKH/SRC button to select the different modes: Radio, BT(Bluetooth),
Disc, USB(with USB device inserted) and AUX-IN(auxiliary input) modes.
Overview of the Components
General Operation
(power) / SRC (source) button
SEL (select/menu) button and VOL (volume) knob
BAND/AMS(automatic store station, automatic music search)
and (answer call) button
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53T (repeat)3UHVHWVWDWLRQ3 button
-10(previous 10 tracks)SUHYLRXVIROGHU3UHVHWVWDWLRQEXWWRQ
1.
2.
3.
4.
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6.
RDM (random)3UHVHWVWDWLRQ4 button7.
8.
9. +10(next 10 tracks)QH[WIROGHU3UHVHWVWDWLRQ 6 button
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11. (tune/seek down, previous track, fast reverse) button
12. (tune/ seek up, next track, fast forward) button
13. Hands-free Microphone 14. EJECTEXWWRQ'LVFVORW
16. IR remote sensor 'LVSOD\86%3RUW
19. AUX IN (auxiliary input) jack 20. Reset button
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Adjust the volume (VOL)
Rotate the VOL knob to increase or decrease the volume level.
Adjust Menu Options (SEL)
3UHVVSEL button repeatedly to cycle through the following adjustable
audio functions: BASS, TREBLE, BALANCE, FADER, EQ OFF, LOUD OFF,
DX/LOC, STEREO/MONO and VOLUME.
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Setting the Clock
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hours digits start flashing on the display. Set hours by pressing the and
button. Then briefly press the CLK button. The minute digits start flashing.
Set minutes by pressing the and .
Finally press the CLK button to confirm your settings.
LCD Display
Mute On/Off
In power on mode, briefly press the MUTE button to toggle mute on or off.
Loudness on/off
3UHVVWKHLOUD button on the remote control to turn on the loudness to
reinforce the output of bassfrequencies, press again to turn it off.
Preset EQ (Equalizer)
3UHVVWKHEQ button on the remote control to toggle between EQ OFF, FLAT,
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USB Port
The USB port of this car radio is designed for media playback from flash
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The charging current consumption is 1 ampere.
Reset
3XVKWKHRESET button with a thin object with a pointed end to reset all
parameters to factory default settings.This function may be used when the
LCD does not display normally or sound is distorted, or when any of controls
are disabled.
General Operation

Radio Operation
Switch Between USA area and Europe area Frequency
In radio mode, press the SEL button to enter the switch state of the US
(USA) and EU(europe)frequency, then rotate it to switch between US(USA)
and EU(europe) frequency. The system will change the frequency setting in
about 3 seconds.
Change Bands
In radio mode, shortly press the BAND/AMS button to switch between the
FM1(F1), FM2(F2), FM3(F3) and AM1(A1), AM2(A2) bands.
To Store / Recall Preset Stations
The radio can be stored 6 preset stations for each band (FM1, FM2, FM3,
AM1 and AM2) for atotal of 30 preset stations.
- To memorize a station:
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- To recall a preset station:
Briefly press the respective station button (1-6) to recall the corresponding
preset station.
Manual Tuning
In the radio mode:
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In manual tuning mode, briefly press the or button to search the next
or previous frequency step by step.
Seek Tuning
In radio mode, press the or button, the automatic search will start, it
will search upward or downward for the strong signal radio station within the
cuttent band. The auto searching will stop until find a station.
Automatic Store Preset station (AMS)
3UHVVDQGKROGWKHBAND/AMS button to store 18 FM stations and 12 AM
stations automatically.
Automatic Preset Scan
Briefly press the BAND/AMS button on the remote control to recall each
preset station that stored in the memories in each band.
LOCAL/DX
In FM radio mode, press the LOC button on the remote control to choose
local or distant reception mode.
Stereo/Mono
In FM radio mode, press the ST button on the remote control to choose FM
STEREO or MONO audio effect.

Disc / USB Operation
Insert CD, Eject CD
With the label facing up, insert a standard size CD into the CD slot.
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mode of operation.
Playing MP3 Files
If you would like to playback files contained in a USB stick, please insert the
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Select Next Track or Previous Track
In the USB mode, briefly press the or button to play the the next or
previou track.
Faste Forward/Reverse
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Play / Pause
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Introduction Scan
3UHVVWKHINT button to play the first 10 seconds of all track.
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Repeating the track
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(Continuously repeats current track).
Playing all tracks in random
3UHVVWKHRDM button. A random playback of all tracks will start.
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Track/Folder Navigation
3UHVVWKH-10/+10 buttons to jump 10 tracks backward or forward.
It is required that over 10 tracks be available on the storage medium.
3UHVVDQGKROGWKH-10/+10 button to select the previous or the next folder.
Select the track or file for playback in MP3 format
D3UHVVDQGKROGWKHBND/AMS button to enter track search mode.
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b) Rotate the volume knob and select the “first number”. Then press the
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c) When the desired track number appears, confirm your selection by
pressing SEL button.
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Using this socket, it is possible to hear the sound of other playback devices
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AUX socket.
3UHVVWKHSRC button repeatedly until “AUX IN” appears in the display.
3. You hear the playback from the external device via the loudspeakers.
You can adjust the volume of the external device to a comfortable level with
the volume control of this device.
Auxiliarly Operation
Bluetooth Operation
Pair and Connect
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enabled mobile phone for the first time, you must pair and connect the two
devices as follows:
1. In any mode, prior to pairing and connecting, the BT logo in the LCD
indicating that no device is connected. To begin pairing, enable BT mode
on your mobile phone.
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be displayed.
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the car audio system. Upon confirming, the BT logo will stop flashing.
4. When pairing is complete, the mobile phone audio will automatically
transfer to the car audio system whenever a call is made or received, or
when the mobile phone plays music.
Make a Call
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a) When linking up the Bluetooth-enabled mobile phone to this bluetooth
handsfree system, press the button to access the dial telephone
number mode, then press the “0~9”, * and # button on remote control to
input the telephone number, and the entered number will be shown on the
LCD display.
b) If a number has been incorrectly inputted, press the DEL button or
button to delete it.
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Bluetooth Operation
Redial Last Dialed Number
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phone number.
Answer a Call
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on the LCD.
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Reject or End a Call
To reject or end the call, press the button on the front panel or remote
control.
Switch Audio Between Car Audio and mobile Phone
During a call, press the VOL knob/button to switch the audio source from the
car audio system back to your mobile phone.
Adjust Call Volume
'XULQJDFDOOXVHVOL knob or VOL+ /VOL- button to adjust the call
volume level.
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Audio Streaming (A2DP)
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streaming audio from your Bluetooth mobile device directly to your head unit.
You can also control your music from the front panel of the head unit using
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1. After pairing, connecting and enabling streaming audio from a compatible
mobile device,
press the SRC button to enter BT mode and display pause in the LCD
display.
2. When a mobile device is paired, music played through that device will
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the LCD display.
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phone.
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Remote Control
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2. VOL+/VOL-(volume increase/decrease) button
3. Band button, (answer call) button
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Track down, fast reverse
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Track up, fast forward
7. Mute button, DEL(Delete) button
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(end call) button
9. button, preset station 1 button,
keypad 1
10. INT(intro) button, preset station 2 button,
keypad 2
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keypad 3
12. RDM(random), preset station 4 button, keypad 4
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14. +10(next 10 tracks), preset station 6 button, keypad 6
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16. LOUD(loudness) button, keypad 8
17. AMS(automatic music search) button, keypad 9
18. SRC(Source) button, keypad *
19. EQ(Equalizer) button, keypad 0
20. LOC(local)/DX button, keypad #
Note: When using the remote control for the first time, you must pull out the
portective plastic tab from the battery compartment found on the back of the
remote control.
11
2
10
4
12
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9
18
19
20
13
8
14
6
7
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17
16
13
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