Boss Audio Systems BV7254 Bedienungsanleitung

SAFETY PRECAUTIONS

Important Warnings to Take Note of BEFORE

Commencing Installation

Damage Caused By Incorrect Installation or Usage is

NOT Covered By Warranty.

PLEASE Take the Time to Read the Installation Notes

Carefully.

To Validate the Warranty Please Ensure That the Unit is

Installed by a Professional, VAT registered Car Audio

Installation Company.

To avoid short in your vehicles electrical system, be sure to disconnect

the battery cable before beginning installation.

The unit is intended for vehicles with a 12-volt battery and negative grounding.

Before installing the unit in a recreational vehicle, truck, or bus, check that the

battery voltage is 12 volts.

Remove the two transport screws from the top of the unit before instal-

lation.

Be sure to connect the negative (-) speaker leads to the negative (-) speaker

terminal. Never connect the negative (-) speaker leads to chassis ground.

This unit is only designed for use with 4 speakers. Do not combine outputs

for use with 2 speakers. Do not ground negative speaker leads to the chassis

ground.

Speakers connected to this unit must be high-power units with a minimum rat-

ing of 45W and impedance of 4 to 8 ohms. Connecting speakers with output

and/or impedance values other than those noted there will result in damage

to the head unit and the speakers.

Check the condition off your speakers carefully - connecting the unit to

old of degraded speakers may result in a fault which will damage the

audio IC and invalidate the warranty.

If this unit is installed in a vehicle that does not have an ACC (accessory)

position on the ignition switch, the red lead of the unit should be connected to

a terminal coupled with ignition switch ON/OFF operations. If this is not done,

the vehicle battery may be drained when you are away from the vehicle for

several hours.

Secure the wiring with cable clamps or adhesive tape. To protect the wiring,

wrap adhesive tape around them where they lie against metal parts. To avoid

short-circuiting, cover all disconnected lead with insulating tape. There is a

possibility of short-circuiting if the leads are not insulated.

Route and secure all wiring so it cannot touch any moving parts, such as the

gear lever and handbrake. Do not route wiring in places that get hot, such as

near the heater outlet. If the insulation of the wiring melts or gets torn, there is

a danger of the wiring short circuiting to the vehicle’s body.

Don’t pass the yellow lead through a hole into the engine compartment to

connect to the battery. This will damage the lead’s insulation and cause a very

dangerous short.

Do not shorten any leads, if you do, the protection circuit may fail to work

when it should.

Never feed power to other equipment by cutting the insulation of the power

supply lead of the unit and tapping into the lead. The current capacity of the

lead will be exceeded, causing overheating.

Since a unique audio I/C circuit is employed, never wire so the speaker leads

are directly grounded or the left and right - speaker leads are common.

When this product’s source is switched ON, a control signal is outputted

through the orange lead. Connect to an external power amp’s system remote

control or the car’sAuto-antenna relay control terminal (max. 300mA12V DC).

If the car features a glass antenna, connect to the antenna booster power

supply terminal.

When an external power amp is being used with this system, do not connect

the orange lead to the amp’s power terminal. Such connection could cause

excessive current drain and a major malfunction. Refer to the relevant owner’s

manual for details on connecting the power amp and other units, then make

the connections correctly.

Do not block any vents or heater panels, Blocking them will cause heat to build

up and may result in fire.

If noise is still experienced when the motor of the vehicle accelerates, a choke

should be placed in line with the power to the unit. The installation company

will know what is required.

When replacing the fuse(s) the replacement must be of the same amperage

as shown on the fuse holder. Never replace a fuse with another of a different

value. If the fuse blows again please contact your instsallation company.

Double check that all wiring and connections are correct before re-connecting

the battery and turning on the unit.

After completing the installation and before operating the unit, reconnect the

battery, then press the (RES) button with a pointed object, such as a ball-point

pen to set to unit to it’s initial status. After pushing the button, wait a few sec-

onds for the red light to flash.

SAFETY PRECAUTIONS

Remove the Old Unit from the Dashboard

DIN Front Mount

DO NOT DISCONNECT WIRES

AT THIS TIME!

2. Insert the keys supplied with the

old unit into both sides of the unit

as shown in figure below until

they click. Pull to remove the old

unit from the dashboard.

1. Remove the outer trim frame.

INSTALLATION

Tools for Installation

2 removal wrenches are supplied for taking out the old unit and place with this

brand name car radio. The following tools and supplies may also be needed for

the installation:

Tools for Installation: Philips Screw-drivers /Machine Screws /Wire Stripper

/Wire Cutter /Hammer /Pencil /Electrical Tape /Electric Drill

Supplies for Installation: Machine Screws /Crimp Connectors /14 Gauge Wire for

Power Connections /14-16 Gauge Speaker Wires

The above are not supplied.

Before you install

Automotive audio equipment installations can be challenging even to the most

experienced of installation technicians. We strongly recommend that this unit

should be professionally installed by a VAT registered installer (this is a require-

ment to validate the warranty).

IMPORTANT: Remove the two transport screws from the top fo the unit before

installing.

Mark Polarity of the Speaker Wires

Marking the polarity of the speaker wirers will make it easier to connect the

existing speakers to your car radio. Consult wiring diagram of existing head unit

before disconnecting any wires. If you are not positive of the polarity of the exist-

ing wires from the speakers to the head unit, install new wires.

1. While the old unit is playing, disconnect the wires from one speaker.

2. Take a length of masking tape and fold it around the wire so it forms a flag.

3. On the masking tape mark the polarity of the speaker wires (+&-), as well as

left or right, and front or rear.

4. Double check that you marked the first speaker correctly by checking that the

speaker wires are the same at the head unit.

5. Repeat this procedure for all of the speakers.

6. Mark the power, ground, and any other wires also.

1. After removing the old radio

and mounting sleeve, insert sup-

plied mounting sleeve into open-

ing.

2. Bend the tabs on the mount-

ing sleeve to keep the mount-

ing sleeve firmly in place.

3. Attach wires from the unit to

existing wires. See wiring con-

nections diagram. Insert radio

into dashboard. Then apply the

trim frame to outside of radio.

4. Support radio using rear mounting

bolt and steel bar. (not included)

DIN Front Mount

INSTALLATION

WARNING!

Disconnect negative battery terminal from battery before start-

ing installation. Consult the vehicle’s owner’s manual for proper

instructions.

NOTE: Mark the polarity of the existing speaker wires before discon-

necting battery.

NOTE: Remove the two transport screws from the top of the unit

before installing.

NOTE: Outer trim frame, hook, and mounting sleeve are not used

for this installation

This is only intended as a general guide; contact the vehicle’s manufacturer for

specific instructions.

This menthod of installation uses the screw holes at the sides of the unit and

the holes of the existing vehicle mounting bracket.

1. Remove the hooks on both sides.

2. Aligh the screw holes of the mounting bracket supplied with the car and the

screw holes of the main unit. Tighten the 2 screws on each side of the unit.

Then fasten the brackets to the car.

3. Attach wires of the unit to existing speaker wires. See wiring diagram.

DIN Rear Mount

INSTALLATION

WIRING DIAGRAM

Make sure You have a good chassis ground. Good ground connection will

eliminate most electrical noise problems. A good chassis ground requires a

tight connection to the vehicle’s metal chassis. The area around the ground

connection should be clean, bare metal without rust, paint, plastic, dust, or dirt

for a good ground connection.

Black Ground

Connect to vehicle body/chassis. Make sure you have a good chassis ground.

This will eliminate most electrical noise form the motor and alternator. A good

chassis ground requires a tight connection to ground. The area should be free

from rust, paint or any form of dirt.

Yellow Memory Backup

Connect to electrical terminal always supplied with power regardless of ignition

switch position.

Orange Remote

Connect to Auto-antenna or power amp control wire/remote connection.

Maximum current 300mA 12VDC. (Low Current)

Parking wire connection

Speaker Wiring Notes:

Follow the above wiring diagram to install the head unit with new or existing

speakers.

1. This unit is designed for use with four (4) speakers with impedance between

4 Ohms to 8 Ohms.

2. An Impedance load of less than 4 Ohms could damage the unit.

3. Never bridge or combine the speaker wire outputs. When not using four

speakers, use electrical tape to tape the ends of the unused speaker outputs to

prevent a short circuit.

4. Never ground the negative speaker terminals to chassis ground.

RCA Line out

(Left=White;Right=Red)

Parking wire(green)

Video output(yellow)

ISO Connector

Fuse 10A

Antenna Socket

Connector A

1. Rear right speaker(+)/Purple

3. Front right speaker(+)/Grey

5. Front left speaker(+)/White

Rear right speaker(-)/Purple-Black

4. Front right speaker(-)/Grey-Black

6. Front left speaker(-)/White-Black

7. Rear left speaker(+)/Green

8. Rear left speaker(-)/Green-Black

Connector B

1. -

2. -

3. -

4. Battery 12V (+)/Yellow

5.Antenna power/Blue-white

6. -

7.ACC+/Red

8. Ground/Black

If parking cable is connected to hand brake switch, the video display of the mon-

itor will be controlled by driving status, system setup and input video sources.

When the car is moving ahead, if the video is played, the screen shows warning.

The warning screen will prevent the driver from watching images.

Parking brake

lead

Brake light Car frame

Battery

Purple Wire

Basic Operation

1. Turning the unit On / Off

Press the Power Button to turn the unit on. When the unit is on, press the Power Button

once to turn the TFT off. During TFT off, the video out signal will be available so that the

connected monitor will show the screen of the unit. Press the Power Button again to turn the

TFT back on. Press and hold the POW button again to turn the unit off.

2. Mode Selection

Press the MODE Button to cycle the Play Mode between RADIO, USB, SD and AUX in.

3. Sound Control

A. Volume

Use the VOL +/- Button to adjust the volume level. Turn the button clockwise to increase the

volume, and vice versa. The larger the number of volume, the higher the volume level.

B. Bass

Press the SELButton until the display shows “BAS”. Use the VOL+/- Button to adjust. When

EQ is ON, bass control is not available.

C. Treble

Press SELButton until the display shows “TRE”. Use the VOL+/- Button to adjust. When EQ

is ON, treble control is not available.

D. Balance

Press SEL Button until the display shows “BAL”, then use the VOL +/- Button to adjust the

balance between the left & right speakers.

E. Fader

Press SEL Button until the display shows “FAD”, then use the VOL +/- Button to adjust the

balance between the front & rear speakers.

F. Preset Equaliser Function

Press the SEL Button until the display shows “EQ OFF”, then use the VOL +/- Button to

choose the equaliser sound effects. The Sequence of equaliser setting will be EQ OFF-

POP-ROCK-CLASSIC.

G. Beep On/off

Press the SEL Button until the display shows “BEEP ON”, then use the VOL +/- Button to

turn the beep sound off. The word “BEEP OFF” will be shown on the display.

H. Loudness

Press SEL Button until the display shows “LOUD OFF”, then use the VOL +/- Button to turn

loudness on. The word “LOUD ON” will be shown on the display.

4. Mute Control

Press the MUT Button to activate the Mute function. Press MUT Button again or use the

VOL +/ - Button to cancel.

5. HOME Button

In Radio and Aux modes, press the HOME button to go back to the home screen. You can

select different play modes by turning and pressing the volume knob.Also you can enter the

setup menu in the home screen.

In USB and SD modes, during music or video playback, press the HOME button once to go

back to the directory page, in which you can choose the desired file by pressing and turning

the volume knob. Press again the HOME button to go back to the home screen.

6. SETUP

Enter the setup menu in the home screen by turning and pressing the volume knob. Turn

the volume knob to each item you would like to set. Press the volume knob in each of the

item, followed by turning the volume knob to adjust settings. After adjusting, press the vol-

ume knob to confirm. Repeat these steps to finish the setting of other items. You can adjust

language, date, time, brightness and master reset accordingly.

7. Clock

Press the clock button on the remote control to see the time during USB and SD modes. The

clock always shows itself during radio and Aux modes.

Radio Operation

1. Choose Radio Band

Press the MOD Button to access the radio function. Then press the BND button

to choose among the five radio bands - three FM Bands (FM1, FM2, and FM3)

and two AM Bands (AM1, and AM2). Each of the five bands can store up to six

preset stations, for a total of 30 preset memory stations.

2. Radio Tune/Seek Function

In radio mode, press the Seek +/- button to automatically seek the next strong

and clear radio station. Press and hold the Seek +/- button until the screen

shows MANU SEEK. At this time, you can manually fine tune your desired

frequency. Wait until the MANU SEEK to disappear in order to perform auto

seek again.

3. Automatic Store/Preset Scan

A. Automatic Scan & Store

While listening to the FM Radio, press and hold the APS Button for 3 seconds.

The receiver will automatically scan and save stations for all the 3 FM Bands,

whichever band (FM1, 2 or 3) you are listening to.

While listening to the AM Radio, press and the APS Button for 3 seconds. The

receiver will automatically scan and save stations for the 2 AM Bands, which-

ever band (AM1 or 2) you are listening to.

B. Scan Saved Stations

Press the APS button or the AMS button on the remote control once to perform

the scanning functions. In FM mode, press the APS button or the AMS button

and the stations in that FM band will be scanned; press the button in AM mode

and scan the band stations of that AM Band.

4. LIST button

In radio mode, press the LIST button to go to the preset stations list. Press again

to go to the function list. You can select or change setting in the lists by turning

and pressing the volume knob.

In USB/SD mode, press the LIST button during audio playback in order to enter

the song list. Choose the desired song by turning and pressing the volume knob.

Press the LIST button again to leave the song list.

5. Save your Preset Stations

After choosing the preset stations in the list, you can adjust the frequency (by

Seek +/-), and save it by pressing and holding the volume knob. Alternatively,

you can choose the preset station in the list after adjustment, then save it by

pressing and holding the volume knob. The newly saved preset station will be

refreshed and it will show the new radio frequency.

6. Mono/Stereo Reception Control

After choosing ST in the list, you can turn ST on or off to select stereo or mono

reception. Improvement of reception of weak stations can be done by selecting

ST OFF operation which may cut down some reception noise.

7. Local/Distance Reception Control

After choosing LOC in the list, you can turn LOC on or off to select local or

distance reception. Improvement of reception of distant stations can be done by

selecting LOC OFF operation.

8. RDS-EON CONTROL

This unit is equipped with the latest technology of EON control, so that when

Radio Operation (Con’d)

you are listening to Radio or CD, if there are any travel announcements from

a nearby local station, the radio will already know the frequency of that radio

station.Then it will receive the station. turn up the volume, or interrupt the

playback of the music for the duration of the announcement.

At the end of the announcement the radio will return to its previous state ready

for the next announcement.

a. After choosing AF in the list, you can turn AF on. The unit will choose the

strongest FM signal for the selected station, so that you do not have to re-tune

the stations when driving between different transmitter coverage areas. When

AF is on, it means RDS information is received; when AF is flashing, it means

RDS information is not yet received.

b. After choosing TA in the list, you can turn TA on. The unit will be activated for

reception of traffic announcement from local radio stations.

c. After choosing PTY in the list, you can rotate the volume knob in order to

choose different program types. Rotate the volume knob and stop at your

desired category, then the unit will search for a station broadcasting that type

of program.

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