BOSS 550B AM FM Receiver MP3-Compatible CD User Manual

: June 5, 2024
: Boss

Table of Contents

BOSS 550B AM FM Receiver MP3-Compatible CD
Installation
Wiring Connections
Overview of the Components
General Operation
- LCD Display
Radio Operation
Disc/ USB Operation
Auxiliarly Operation
Bluetooth Operation
Bluetooth Operation
Remote Control
Specifications
- Radio
BOSS Audio Systems
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

BOSS 550B AM FM Receiver MP3-Compatible CD

BOSS-550B-AM-FM-Receiver-MP3-Compatible-CD-
product

Installation

Installation Procedures

First, complete the electrical connections and then check for correctness.
Disconnect the battery negative terminal of the vehicle before beginning installation.
Remove 2 transport CD deck screws before use.

Installation Opening

This unit can be installed in any dashboard Having an opening as shown below.

Insert the mounting collar into the dashboard and bend the mounting tabs out with a screwdriver. Make sure that the lock lever is flush with the mounting collar( not projecting outward).

BOSS-550B-AM-FM-Receiver-MP3-Compatible-CD-fig-2

Connect all wiring harness and slide the head unit into the mounting collar until it clicks into place.

Wiring Connections

BOSS-550B-AM-FM-Receiver-MP3-Compatible-CD-fig-3

+12V DC Negative Ground.
Only use speakers with 4 ohms impedance.
The maximum current of the Amp remote trigger is 200mA.

Overview of the Components

BOSS-550B-AM-FM-Receiver-MP3-Compatible-CD-fig-4

(power)/ SRC (source) button
SEL (select/menu) button and VOL (volume) knob
BANDIAMS(automatic store station, automatic music search) and (answer call) button
(pause/play), Preset station 1 button
INT (intro). Preset station 2 button
RPT (repeat), Preset station 3 button
RDM (random), Preset station 4 button
-10(previous 10 tracks), previous folder, Preset station 5 button
+10(next 10 tracks), next folder, Preset station 6 button
CLK (clock setting), MUTE button, (end call) button
(tune/seek down, previous track, fast reverse) button
(tune/ seek up, next track, fast forward) button
Hands-free Microphone
14. EJECT button
15. Disc slot
IR remote sensor
17. Display
18. USB Port
AUX IN (auxiliary input) jack
20. Reset button

General Operation

Turn Unit on/off, Change the Source

Press the /SRC button to turn on the unit. Press and hold the /SRC button to turn off the unit.
Press the /SRC button to select the different modes: Radio, BT(Bluetooth), Disc, USB(with the USB device inserted) and AUX-IN(auxiliary input) modes.

Adjust the volume (VOL)

Rotate the VOL knob to increase or decrease the volume level.

Adjust Menu Options (SEL)

Press the 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.
Press and hold the SEL button to access these additional functions: VOL(LAS/ADJ), AREA US/EU, Clock 12/24, and BEEP ON/OFF.

Setting the Clock

Press the CLK button to display time. Press and hold the CLK button, and the hour’s 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

Press the LOUD button on the remote control to turn on the loudness to reinforce the output of bass frequencies, and press again to turn it off.

Preset EQ (Equalizer)

Press the EQ button on the remote control to toggle between EQ OFF, FLAT, POP, ROCK, and CLASS.

USB Port

The USB port of this car radio is designed for media playback from flash memory devices and charging for iPhone / Android mobile phones.
The charging current consumption is 1 ampere.

Reset

Push the 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.

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 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 in 6 preset stations for each band (FM1, FM2, FM3, AM1, and AM2) for a total of 30 preset stations.

To memorize a station: Press and hold the desired preset buttons (1-6) to save a radio station.
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

Press and hold the button to enter the manual tuning mode.
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, and the automatic search will start, it will search upward or downward for the strong signal radio station within the current band. The auto searching will stop until finding a station.

Automatic Store Preset station (AMS)

Press and hold the BAND/AMS button to store 18 FM stations and 12 AM stations automatically.

Automatic Preset Scan

Briefly press the BANDIAMS button on the remote control to recall each preset station that is 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 CCD

With the label facing up, insert a standard-size CD into the CD slot. Playback will begin automatically.
Press (The eject button) to eject the CD. The unit will change to the previous mode of operation.

Playing MP3 Files

If you would like to playback files contained in a USB stick, please insert the stick into the USB port. The MP3/WMA files will be played automatically.

Select Next Track or Previous Track

In the USB mode, briefly press the or button to play the next or previous track.

Fast Forward/Reverse

Press and hold the or button to fast forward or reverse a track.

Play/ Pause

Press the button to temporarily stop playback.
Press this button again to continue the playback.

Introduction Scan

Press the INT button to play the first 10 seconds of all tracks.
Press again to stop the introduction scan, and play the current track.

Repeating the track

Press the RPT button to toggle between RPT ALL (Play all tracks), RPT FLR (Continuously repeats all tracks in the current folder), and RPT ONE (Continuously repeats current track).

Playing all tracks at random

Press the RDM button. A random playback of all tracks will start.
Press the button again to set the normal playback.

Track/Folder Navigation

Press the -10/+10 buttons to jump 10 tracks backward or forward.
It is required that over 10 tracks be available on the storage medium.
Press and hold the -10/+10 button to select the previous or the next folder.

Select the track or file for playback in MP3 format

Press and hold the BNDIAMS button to enter track search mode. First “TRK0000” will appear on the display
Rotate the volume knob and select the “first number”. Then press the M button to move the “first number” to the left and enter the next number.
When the desired track number appears, confirm your selection by pressing the SEL button.

Auxiliarly Operation

Using this socket, it is possible to hear the sound of other playback devices such as MP3 players, CD players, etc. through the car loudspeaker.

Please connect the external device with a 3.5 mm stereo jack plug to the AUX socket.
Press the SRC button repeatedly until “AUX IN” appears on the display.
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.

Bluetooth Operation

Pair and Connect

Prior to using the Bluetooth device as a handsfree system for a Bluetooth- enabled mobile phone for the first time, you must pair and connect the two devices as follows:

In any mode, prior to pairing and connecting, the BT logo on the LCD indicates that no device is connected. To begin pairing, enable BT mode on your mobile phone.
When the phone finds the car audio system, the “B0SS 550B” name will be displayed.
Choose the “BOSS 550B” from the device list to pair and connect with the car audio system. Upon confirming, the BT logo will stop flashing.
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
To make a call, dial the call directly from the paired mobile phone. To make a call with this Bluetooth handsfree system:

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.
If a number has been incorrectly inputted, press the DEL button or button to delete it.
Press the button to make the outgoing call.

Bluetooth Operation

Redial Last Dialed Number

Press and hold the button on the control panel to redial the last dialed phone number.

Answer a Call

When the mobile phone is called, the incoming telephone number displays on the LCD.
To receive the call, press the button on the front panel or remote control.

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

During a call, use the VOL knob or VOL + VOL – button to adjust the call volume level.
Use the MUTE button to mute sound.

Audio Streaming (A2DP)

The unit supports A2DP (advanced audio distribution profile) wireless 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 AVRCP (audio video remote control profile).

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.
When a mobile device is paired, music played through that device will automatically be heard through the car audio system and display A2DP in the LCD display.
Press the or button to play the next or previous on the mobile phone
Press the button to pause or resume music playback.

Remote Control

BOSS 550B AM FM Receiver MP3-Compatible
CD-5

(Power on/off) button
VOL+VOL-(volume increase/decrease) button
Band button, (answer call) button
PREV: tune down, seek down; Track down, fast reverse
SEL(selection) button
NEXT: tune up, seek up; Track up, fast forwardd
Mute button, DEL(Delete) button
CLK(clock setting) button, (end call) button
button, preset station 1 button, keypad 1
INT(intro) button, preset station 2 button, keypad 2
RPT(repeat) button, preset station 3 button, keypad 3
RDM(random), preset station4 button, keypad 4
10(previous 10 tracks), preset station 5 button, keypad 5
+10(next 10 tracks), preset station 6 button, keypad 6
ST(stereo) button, keypad 7
LOUD(loudness) button, keypad 8
AMS(automatic music search) button, keypad 9
SRC(Source) button, keypad*
EQ(Equalizer) button, keypad 0
LOC(local)/DX button, keypad #

Note: When using the remote control for the first time, you must pull out the protective plastic tab from the battery compartment found on the back of the remote control.