Blaupunkt Stereo Receiver VA4100 User Manual

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ASSEMBLY & MOUNTING  
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THANK YOU FOR CHOOSING BLAUPUNKT!  
Congratulations! You are the now the owner of an exceptional car audio amplifier from the audio enthusiasts at  
Blaupunkt. Our engineering staff has spent considerable time refining our Velocity series amplifiers in order to  
introduce great sound to the consumer. With these products we focus on sonic performance but balanced with  
rugged design and flexible installation.  
Not only do we offer you a great product but also a supportive owners manual. This manual can be used as a  
teaching guide due to its brief, but informative, explanations of amplifier and system design. We are also very  
concerned about the end consumer using proper installation techniques for the highest performance possible from  
their new audio products. MOST important to us are the concerns with safety and the installation process. Since our  
Blaupunkt retail dealers have the tools and experience for an optimized and safe installation, we always recommend  
they do the final vehicle integration. But, should you choose to install these products yourself, please take the time to  
read this manual completely and abide by all precautions.  
AMPLIFIER BENEFITS & FEATURES  
“THERMAL-THROTTLE” TEMPERATURE PROTECTION  
Unlike “dragster” style amplifiers that put out lots of power for a few  
Conventional Amplifier Output  
Audio Output  
minutes, our Velocity series amps are engineered for full throttle,  
Temperature  
everyday driving. With our incredible Blaupunkt “Thermal Throttle”, our  
amps keep on playing without overheating, the common shut-down  
mode for most amplifiers.  
All amplifiers heat up some over time. Using our moving voltage rail  
Thermal Shut-Down  
Thermal Shut-Down  
design, once warm, the rails pull back to prevent long term overheating  
thus preventing full shut off or even possible damage, as most other  
amps do. Once initiated this temporary system gain pullback lets you  
know you are really pushing the system hard but it’s not letting you  
down going into full shut down.  
Time  
Blaupunkt ThermalThrottle Output  
Audio Output  
UNIQUE INSTALLATION FLEXIBILITY  
Temperature  
Included in your amplifier kit is the very cool looking side rails and end  
caps. The side rail system allows you to butt amps side-by-side  
building a multi-channel monster of a system but with everything  
trimming out beautifully. An added benefit of the side rails and caps is  
the dressing down and hiding of all cables preventing any kind of  
snagged wires.  
Time  
REMOTE GAIN CONTROL  
You will find a very nice remote gain control for the amplifier. This gain control works only in the subwoofer mode  
(low-pass) providing about 20dB of gain range to dial in accurate bass levels or to simply pound out the tunes if  
desired.  
NOISE ISOLATION MODE CONTROL  
Inside the amplifier are isolation circuits to help prevent the intrusion of noise into the audio path. These circuits are  
turned on or off via the small switches visible through the bottom plate. Noise currents may enter the system via  
signal cables should there be small ground voltage differences. These are sometimes heard as a varying pitch with  
engine speed (alternator whine). The vehicle may also have a poor antenna ground, or overly sensitive AM radio  
tuner front end, which can result in low level back ground tones (birdies) in some parts of the AM radio band  
(550kHz-1710kHz).  
Should either of these conditions occur, use a small screwdriver to slide the switch to the “ON” position and they  
should be eliminated. If no problems are detected, leave in the “OFF” position for maximum audio system  
performance.  
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SAFETY CONCERNS  
We always recommend you have your Blaupunkt amplifiers professionally installed  
but the installation process is often so easy that the average consumer can  
achieve success with little trouble. Regardless of the person installing, you should  
be sure to review the following points before proceeding with the installation:  
READ THE MANUAL! Understanding the product and installation limitations  
before lifting a screwdriver.  
WEAR SAFETY GLASSES AT ALL TIMES - Flying debris are always dangerous.  
PROTECT THE VEHICLE - Always disconnect the negative battery cable before  
starting any kind of installation work. This prevents a possible high current  
electrical short (potential fires).  
HEAT - Keep all audio components away from nearby hot vehicle components that heat up over time such  
as hoses, high current wires, and braking system components.  
GIVE YOURSELF LOTS OF TIME - Rushing to complete an installation nearly always ends up with  
problems.  
DO NOT LISTEN AT HIGH SOUND LEVELS FOR A PROLONGED TIME - these amplifiers, used with high  
efficiency speakers from ANY manufacturer, have the potential to cause permanent hearing loss after  
listening at maximum volume levels for several hours.  
INSTALLATION WARNINGS!  
Before disassembling your beautiful new car you need some basic installation knowledge and skill with  
common hand and power tools. Following such basic installation tips and warnings will prevent possible  
damage to the vehicle and also prevent possible fires.  
• AGAIN...READ THE MANUAL! There is a lot of helpful information in this manual that  
will save time and prevent problems later.  
• COVER THE VEHICLE WORK AREAS - Use fender covers or blankets to protect the  
work areas from scratches or dings.  
• DISCONNECT THE (-) LEAD ON THE BATTERY - No sparks or fires please!  
• “REVIEW” THE INSTALLATION - Before using any tools or moving vehicle  
components, take five minutes to review the installation intentions (e.g., verify that an  
amplifier will fit in an area of a car before tearing out all the interior).  
• “REVIEW” THE VEHICLE - Before drilling any holes or cutting into any surfaces, make  
sure there are no fuel or hydraulic lines behind the surfaces. Also make sure there are  
no wires routed directly behind or near the desired mounting area (remember...screws  
can often extend 1-2 inches behind the mounting surface).  
• ENSURE PROPER FIT - Before cutting or drilling, make sure the amplifier will physically  
fit in its desired location. Check for clearance around rear deck torsion bars or other  
structural elements.  
• EVERY CAR IS ASSEMBLED DIFFERENT - Every auto manufacturer uses different  
assembly techniques. Take care in removing/modifying all trim panels and mounting  
surfaces since they often use unique screws or snap fasteners that are difficult to replace if they are lost or  
broken.  
• BE CAREFUL WITH CABLE ROUTING - When routing audio cables, make sure RCA and speaker wires are  
routed away from high current power lines for audio amplifiers and vehicle systems lines when possible.  
This will help prevent noises from creeping into the audio system, plus prevent potential damage to the  
vehicle wiring itself.  
• BE CAREFUL WITH ALL CONNECTIONS - When making connections, make sure each connection is clean  
and properly secured. Observe all polarity markings carefully to ensure proper end performance.  
• CAUTION - FUEL TANKS AND FUEL LINES ARE NOW LOCATED DIRECTLY BENEATH THE REAR DECK  
IN MANY CARS - CHECK FOR ADEQUATE CLEARANCE BEFORE EVEN CONSIDERING SUCH A  
MOUNTING LOCATION!  
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SYSTEM PLANNING  
Before wiring up an audio system that may not achieve the  
sound quality you want, be sure to choose a system  
concept that fits your listening requirements. Basic  
Full-Range  
Full-Range  
systems, a receiver with internal 4x20 watts and 4 coax  
speakers, are adequate for many listeners. But, when you  
want to really “feel” the music, you will need some kind of  
subwoofer amplifier/speaker combination. Although many  
people might jump into an “add-on” amplifier to power to  
rear coaxial speakers, a better choice is usually a subwoofer  
amp/speaker system that supplements the existing 4  
speaker system as shown in the adjacent drawing. Such a  
system provides a surprising improvement in sound quality  
due to the usually dramatic increase in bass response.  
Subwoofer  
Full-Range  
Full-Range  
Supplementary subwoofer system  
The next dramatic step up in performance is with a “multi-  
channel” system that offers more dynamic range in the mids  
and highs due to higher power plus more bass response  
due to multiple woofers and/or more power. But, with such  
a system, the stereo image and overall listening experience  
usually becomes much more life-like due to better tonal  
quality midrange/tweeter speakers and usually better  
placement.  
Receiver  
Sat Amplifier  
(4x100 W)  
To build such a system though, complexity goes up due to  
the addition of passive or active crossovers which take time  
to install and may inject noise into the system due to  
potential noise signal pick up. The results though of such a  
system can be dramatically pleasing.  
Passive X-over  
Sub Amplifier (2x100 W)  
Subwoofers  
High performance multi-channel system  
INSTALLATION TOOLS  
For most installations, simple hand tools are adequate to install an aftermarket amplifier. Depending upon the  
mounting locations used, you will need power tools for drilling and cutting plastics and metal. A good starting list is  
summarized below:  
Tape measure and ruler  
• Marking pen and starting punch  
• Phillips and flat blade screwdrivers (small and medium sizes)  
• Nylon wire bundle ties  
• Pliers: standard vice-grip and needle nose styles  
• Light-duty trim pry-bar for removing door trim  
• Cutting shears or nibbling tool for cutting thin and medium gauger metal  
• Wire cutters, wire strippers, electrical tape, crimping pliers and appropriate crimp-on  
terminals  
• Power drill with appropriate sized drill bits  
– 5 –  
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VEHICLE WIRING  
VEHICLE FUSING  
SYSTEM FUSE CHART  
(Fuse size for total amplifier system power in “rms” watts)  
For safety purposes, a high current fuse (or circuit  
breaker) MUST be installed in line with the amplifiers(s)  
immediately at the battery to prevent vehicle damage  
should the battery line in advertently shorted to the  
vehicle chassis. The chart at the right shows the  
100 W  
200 W  
500 W  
1000 W  
Fuse Size  
(in amps)  
20 A  
30 A  
50 A  
100 A  
recommended master fuse sizes for an average audio system with noted “rms” output power levels.  
POWER WIRING  
SYSTEM POWER AND GROUND WIRE CHART  
(Wire gauge for total system in 'rms' watts)  
Most vehicles built since 1990 have adequate current  
capability for your amplifier. Except for systems above  
WIRE LENGTH  
5 ft. / 1.5 m  
10 ft. / 3.0 m  
15 ft. / 4.5 m  
20 ft. / 6.0 m  
25 ft. / 7.5 m  
100 W  
12  
200 W  
500 W  
1000 W  
about 500 W rms, the factory charging system and  
battery should easily support it if properly installed.  
Proper wire size must be chosen to ensure adequate  
current delivery to the amp. Wire size (gauge) of the  
cables need to increase in size for higher power  
systems. (Wire sizes larger than those noted are usually  
a waste of time and money since they offer Little or no  
performance improvements.)  
10  
10  
8
8
8
6
6
4
4
12  
4
10  
2
2
10  
8
10  
8
0 or 00  
Wire diameter must increase (decreased wire gauge number) for higher power systems. For long wire runs the  
wire diameter must also increase. The wire sizes noted allow for a maximum 0.5 volts DC drop over the give  
wire run which results in Sound Pressure Level drops inaudible to the average listener.  
SPEAKER WIRING  
As with power wire, speaker wire size (gauge) changes  
LOUDSPEAKER WIRE CHART  
(Wire gauge per loudspeaker/speaker power in “rms” watts)  
WIRE LENGTH  
5 ft. / 1.5 m  
10 ft. / 3.0 m  
15 ft. / 4.5 m  
20 ft. / 6.0 m  
25 ft. / 7.5 m  
20 W  
18  
50 W  
16  
100 W  
16  
200 W  
16  
with the power required and the length of the wire run.  
The speaker wire chart shows the minimum  
recommended wire size for a single audio output  
channel driving a loudspeaker at a given distance with a  
maximum power loss of 0.5 dB, the threshold of  
audibility. (Wire sizes larger than those noted are usually  
a waste of time and money since they offer little or no  
performance improvements.)  
18  
16  
16  
16  
16  
16  
16  
14  
16  
16  
16  
14  
16  
16  
14  
12  
FINAL VEHICLE WIRING  
Battery  
Current requirements for an upgraded audio system dictate a  
dedicated power line be run from the amplifier directly to the  
battery of the vehicle. This line should NOT be run to the fuse  
panel of the vehicle but directly to the battery. DO NOT run to the  
alternator either. There MUST be a fuse installed at the battery  
with adequate amperage as shown in the chart above.  
Battery  
Connector  
Fuse or  
Circuit  
Breaker  
Grommet  
To prevent  
damage to  
power wire  
Power Wire  
(10 gauge  
wire or larger)  
Power Antenna  
Turn-On Wire  
As for the final signal wiring, be sure to route the audio cables  
down the side of the car opposite the power lines to avoid noise  
pick up from the lines. Also, try to route all audio cables away  
from noise sources such as engine computers and ABS brake  
computers.  
(18-20 gauge wire)  
Speaker Wires  
or  
RCA Cables  
Speakers  
Proper power grounding is important to insure adequate current  
flow. Be sure to grind the surface clean of all paint to ensure a  
solid electrical connection.  
Ground Screw  
Drill 1/8" hole in  
chassis sheet metal  
Use the same ground if  
using multiple amplifiers  
Amplifier  
– 6 –  
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CONNECTIONS & CONTROLS  
REMOTE GAIN  
CONTROL JACK  
FRONT  
CROSSOVER  
SELECTOR,  
REAR  
CROSSOVER  
SELECTOR,  
LINE LEVEL  
INPUTS  
CROSSOVER  
MODE SELECTOR  
& GAIN CONTROL  
CROSSOVER  
MODE SELECTOR  
& GAIN CONTROL  
REMOTE GAIN CONTROL JACK - For connecting the remote gain control (included). This allows you to adjust the  
gain while seated in the vehicle with the system operating.  
FRONT & REAR CHANNEL CONTROLS  
GAIN CONTROL - The gain control allows for a range of 0.3-6Volts input. This means that if the setting is a 0.3V,  
it only takes 0.3Volts to drive the amp to full output. (Such a low setting allows for the amp to be easily overdriven  
and more susceptible to noise so a mid-position is highly recommended for most radios.)  
CROSSOVER MODE SELECTOR - Depending upon the system design chosen, you need to set the amplifier in  
the proper “mode”; LP, Flat, or HP. The low-pass and high-pass frequency settings are explained below. The  
“Flat” setting simply allows for the amp to pass all audio frequencies without any kind of crossover filter  
application. (This is common with 6x9” fullrange coaxial speakers for example.)  
CROSSOVER CONTROL  
HIGH-PASS - If the Mode Selector is in the “HP” position the amplifier passes only mid and high frequency  
sound. The lower limit for such sound is set via this control. A common setting is just above 100Hz.  
LOW-PASS - If the Mode Selector is in the “LP” position the amplifier passes only low frequency sound. The  
upper limit for such sound is set via this control. For bass, a value just below 100Hz is usually best.  
LINE LEVEL INPUTS - The most commonly used inputs in the aftermarket are RCA type line level inputs. These can  
handle up to about 6 Volts rms without overdriving the amplifier. Such high voltages are rarely found from car audio  
head units so this is a very comfortable value. But, should the use need to drive the amp directly from speaker level  
leads, use the supplied “High Level Adapter” to connect to the amp.  
– 7 –  
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CONNECTIONS & CONTROLS  
SPEAKER OUTPUTS  
FUSES  
POWER  
CONNECTIONS &  
TRIGGER LINE  
SPEAKER OUTPUTS - The amplifier is connected to appropriate  
impedance speakers via these leads. It is IMPERATIVE that these leads  
NOT be connected or touch the vehicle chassis in any way or the amplifier  
will be damaged. The (+) and (-) leads of the amp are in no way inter-  
connected to one another. Also, NONE of the leads can touch each other,  
touch ground, or touch +12V or damage may occur to the amp or vehicle.  
+12V Terminal  
Connect directly to the vehicle battery (+)  
terminal with 10 gage wire (minimum)  
FUSES - These fuses are only for catastrophic situations should the  
amplifier begin to self-destruct or incur installation situations where gross  
amounts of current are being required from the amp beyond its design  
limits. Although another fuse should be installed inline with the high power  
line at the battery, these amplifier mounted fuses MUST remain in the  
circuit to protect the amplifier.  
NOT SUPPLIED  
Fuse or  
Circuit Breaker  
To Battery  
Terminal  
10 Gage  
Wire  
Battery  
Terminal  
Adapter  
POWER CONNECTIONS & TRIGGER LINE  
Ground Terminal  
+12v - A high current line run direct from the batter is highly  
recommended to insure adequate current and voltage. This line MUST  
be run through a dedicated fuse of some kind and this fuse should be  
located immediately next to the power source. This in-line fuse is used  
to protect the vehicle should a short to chassis occur.  
Connect to a good chassis ground. The  
ground connection should be clean,  
unpainted metal to provide a good electrical  
connection.  
TRIGGER - This line tells the amp to turn on and is remotely switched  
from the radio which normally provides an amp “trigger” output. This  
line is required to go “high” (+12V) to turn on the amp. If this line is not  
available, use the power antenna line trigger which is normally available  
in most radios.  
Sheet  
Metal  
Screw  
Ring  
Connector  
10 Gage  
Wire  
GROUND - This is the high current ground connection to the chassis of  
the car. It should be fastened to a clean ground connection in the  
vehicle, capable of handling high current loads. This wire should be no  
longer than 3 feet (1 meter).  
Drill 1/8” hole  
in chassis  
sheet metal  
Trigger Terminal  
Connect the radio power antenna lead from  
the receiver to the trigger terminal. This  
turns the amplifier on whenever the receiver  
is turned on.  
BLUE DOT LIGHT INDICATOR ON THE TOP OF THE AMPLIFIER  
(not shown above)  
POWER ON - This light will turn on when the amplifier receives a +12V  
turn-on signal from the radio. If the amp is properly wired, but the light  
does not turn on, there may be a short circuit condition that the amp is  
protecting itself from.  
PROTECTION LED - This light flashes if the amplifier senses a severe  
problem, such as a speaker short circuit.  
Butt  
Connector  
To Receiver  
(not supplied)  
Power  
Antenna Lead  
18-20 Gage  
Wire  
– 8 –  
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SYSTEM CONFIGURATION #1  
Full-Range  
High-Pass  
Full-Range  
High-Pass  
Subwoofer  
5 Channel Combo (2ch HP + 3ch passive Multi-Mode)  
The multi-mode system is a “poor-man’s” satellite/subwoofer sys-  
tem. This amplifier is able to drive speakers in stereo mode and  
at the same time drive low frequencies to a dedicated subwoofer  
speaker. By inserting inductors (coils) and capacitors, the result is  
an inexpensive solution to generating a ‘5' channel system with a  
4 channel amplifier.  
Using passive components (coils and capacitors) the installation is simple and performs adequately for most listen-  
ers. Such a system will not perform as well as an “active” system because the slow attenuation (roll-off) of the fre-  
quency response resulting in a moderate amount of over-lapping of the sound spectrum between the satellites and  
subwoofers. It is important to remember that although surprisingly pleasant performance is achieved, this is a com-  
promise system and will NOT perform as well as a dedicated 5 channel system with electronic crossovers.  
SYSTEM  
CONFIGURATION #2  
Full-Range  
Full-Range  
Full-Range  
Full-Range  
4 Channel (Full-Range,HP)  
For many listeners, they need only slightly higher system  
loudness and/or music dynamic range without the amplifier  
going into distortion. By simply adding additional power to  
the speakers this can be achieved in many installations. BUT, the speakers must be able to handle this additional  
power without damage.  
Such installations are most common with listeners who only need systems that can play moderately loud. Also, this  
consumer is often a person who simply cannot, or will not, accept additional amplifiers or speakers in the vehicle.  
Such systems will not be able to perform as well as audio systems with additional speakers and amps, but this is  
often an accepted trade-off for this consumers.  
– 9 –  
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SYSTEM CONFIGURATION #3  
Full-Range  
Full-Range  
Subwoofer  
Full-Range  
Full-Range  
3 Channel Combo (2ch HP + 1ch Subwoofer)  
Like the four channel systems as shown above, the  
benefits, and performance trade-offs are similar. But,  
this system configuration offers an additional advan-  
tage with the internal high-pass crossover.  
This crossover reduces the bass to the front speakers thus protecting them under heavy low frequency loads.  
A typical system with larger drivers in the back is then able to be pushed harder without worry over the power  
handling on the front speakers.  
SYSTEM  
CONFIGURATION #4  
Full-Range  
OR  
HP  
Full-Range  
Subwoofer  
LP  
Subwoofer  
LP  
Full-Range  
OR  
HP  
Full-Range  
OR  
2 Channel (Full-Range, HP, LP)  
This installation is most popular for listeners who want  
to simply increase the power to the rear speakers in a  
car. The resulting performance is most commonly a  
louder overall sound field from the rear.  
But, such a system’s biggest benefit is the additional bass response since the bass control of the radio can be  
turned up without distorting the amplifier. Such a system is not necessarily louder in the mids and highs but is  
able to play louder in the low frequencies due to this additional power. This leads to an overall richer and  
stronger sound experience for the listener without additional subwoofer boxes or electronics that may compli-  
cate the system or take up more room. Such a system WILL NOT equal the performance of a subwoofer sys-  
tem but will certainly be a pleasant improvement.  
With the addition of a high-pass filter, this amplifier is set up to complement a dedicated subwoofer  
amplifier/speaker system. This allows for smaller (e.g., 5" or 6") satellite speakers to operate most efficiently  
without being over-driven in the bass region where a dedicated subwoofer system operates most efficiently.  
– 10 –  
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TROUBLE-SHOOTING GUIDE  
Below is a basic trouble-shooting guide to assist in seeking out and correcting a problem that may occur in the  
installation process. Although lengthy, this chart cannot address every single problem possible but mainly the ones  
most common.  
SYMPTOM  
PROBABLE CAUSE OR CORRECTION  
No power (power light not on)  
• Check connections to amps +12 volt, ground, and remote lines.  
• Use voltmeter to verify voltages are at terminals of amp.  
• Check main power connection at battery.  
• Check fuse in power line at battery.  
• Disconnect all speakers but not power lines - if unit then turns on, a speaker short or speaker  
line touching vehicle chassis is likely.  
Power but no sound (power light is on)  
No sound from one channel or entire side  
Very low sound level  
• Check all input cable lines for connection.  
• Disconnect speakers from amp, test speaker lines with digital voltmeter to verify >2 ohms per  
channel (non-bridged mode).  
• Check radio’s balance and fader control positions - verify they are at center.  
• Check speaker connections at amp and speaker.  
• Check input leads for connection to amp.  
• Verify radio balance and fader controls are at center positions.  
• Check amplifier’s input gain control setting - adjust for higher output levels if necessary (gain  
settings closer to 0.3 volts).  
• Receiver may have very low output voltage levels - a step up “line driver” may have to be  
used.  
Power amplifier turns on and off repeatedly  
(motor-boating sound)  
• Make sure power connections at batter are tight.  
• Verify battery voltage is >11.5 volts DC (12.5-15V engine on) at amplifier with engine off.  
• Check all radio and amplifier ground connections.  
Amplifier turns off during loud or distorted  
passages  
• Input stage being over-driven - lower input gain (closer to 4 volt setting).  
• Verify battery voltage is >11.5 volts DC at amplifier with engine off.  
• Check all radio and amplifier ground connections.  
• Verify speaker loads >2 ohms on all channels (non-bridged mode).  
Amplifier performs fine but gets very hot to  
the touch  
• Input gain control too high - lower accordingly (closer to 4.0 volt setting).  
• Verify speaker loads >2 ohms on all channels (non-bridged mode).  
• Verify the mounting location allows for free air movement around the amp. Preferably, the amp  
should be mounted with fins up and down so rising heat moves quickly away from amp.  
Amplifier turn-on/turn-off pops or noises  
• “turn on race” - disconnect trigger from radio and turn on/off via a wire jumper to power  
terminal. If noise goes away, the radio is turning on/off too slowly. This is radio problem and  
can only be corrected with outboard turn-on delay relay system.  
• Radio “thump” - disconnect the RCA input lines to the amp and turn on/off via radio trigger. If  
noise goes away without RCA lines connected, the radio is sending pops out through RCA  
lines. This is a radio problem and can only be corrected with outboard turn-on delay relay  
system.  
Cracking noises on AM/FM radio but not on  
tape or cd.  
• Ensure the problem is “radiated noise” by placing a portable FM radio near the car engine. If  
noise is picked up, then it is a vehicle problem and not your system. Research to isolate the  
source and properly shield or bypass.  
• Are spark plugs and wires > 3 years old? These can often radiate substantial noise when old.  
• Verify the engine block has a good ground connection to chassis ground.  
• Verify the engine compartment hood is grounded to vehicle chassis via a braided grounding  
strap.  
Whining noise, engine running, varies in pitch  
or loudness with engine speed, AND varies  
with radio volume control setting (this is  
generally a RADIO installation problem)  
• Verify all power and ground connections are clean at radio.  
• Re-route radio power and ground so they are sourced from same connections back at  
amplifier (this is called a “common” ground).  
• Check all ground connections to ensure clean surfaces that have all paint removed and also  
not oxidation buildup over time.  
• Verify there is some kind of power filtering choke assembly at back of radio. If not, install one.  
Whining noise, engine running, varies in pitch  
or loudness with engine speed, BUT, DOES  
NOT vary with radio volume control setting  
(this is generally an amplifier installation  
problem)  
• Check battery ground connections at chassis are clean and tight, scraped free of oxidation,  
paint, and grease.  
• Re-route radio power and ground so they are sourced from same connections back at  
amplifier (this is called a “common” ground).  
• Bypass all equipment between radio and amp (e.g., equalizers) directly connecting radio. If  
noise goes away, signal processor has problem.  
• Check for signal level “ground loops” - disconnect the outer shield of the RCA cable at one  
end of the cable (e.g., radio end). If noise goes away, modify cables accordingly. There are  
voltage differences at the ground connections of the components and these are NOT  
correctable any other way than such shield cutting or an outboard “ground loop isolator”  
which is a small transformer.  
– 11 –  
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GUARANTEE (EUROPEAN UNION)  
We provide a manufacturer guarantee for our products bought within the European Union. You can view the  
Blaupunkt GmbH  
Hotline  
Robert Bosch Str. 200  
D-31139 Hildesheim  
Germany  
LIMITED WARRANTY (UNITED STATES ONLY)  
Robert Bosch Corporation (for products sold in the United States) warrants new Blaupunkt car audio products distributed in the  
United States through authorized Blaupunkt dealers, or which are imported as original vehicle equipment by the automobile  
manufacturer, to be free from defects in material and workmanship, in accordance with the following terms and conditions:  
For twelve (12) months after delivery to you, the original consumer purchaser, we will repair or at our option replace at no charge  
to you any car audio product which, under normal conditions of use and service, proves to be defective in materials or  
workmanship. However, this warranty does not cover expenses incurred in the removal or reinstallation of any car audio  
product, whether or not proven defective, and does not cover products not purchased from an authorized Blaupunkt dealer.  
This warranty is limited to the original consumer purchaser and is not transferable. Repaired and replacement car audio  
products shall assume the identity of the original for purpose of this warranty and this warranty shall not be extended with  
respect to such products.  
To obtain performance of this warranty, contact the nearest Blaupunkt authorized repair facility or our nearest office. A dated  
purchase receipt or other proof that the product is within the warranty period will be required in order to honor your claim.  
Carefully pack the unit and ship prepaid to the servicing location.  
For further information: In the United States, write to the Robert Bosch Corporation, 2800 South 25th Avenue, Broadview,  
Illinois, 60155, attention Blaupunkt Customer Service Department or call 1-800-950-2528.  
Specifically excluded from this warranty are failures caused by misuse, neglect, abuse, improper operation or installation,  
dropping or damaging a radio faceplate, unauthorized service or parts, or failure to follow maintenance instructions or perform  
normal maintenance activities. Normal maintenance activities for car audio products include but are not limited to cleaning, such  
as cleaning radio faceplate connectors and tape heads, tape player head demagnetization and tape player lubrication, compact  
disc and lens cleaning, and other minor maintenance activities and adjustments that are outlined in the owner’s manual or that  
are normally required for continued proper operation. Also excluded from this warranty are the correction of improper installation  
and the elimination of any external electromagnetic interference.  
THIS WARRANTY SETS FORTH YOUR EXCLUSIVE REMEDIES WITH RESPECT TO THE PRODUCTS COVERED BY IT. WE  
SHALL NOT BE LIABLE FOR ANY INCIDENTAL, CONSEQUENTIAL, SPECIAL OR PUNITIVE DAMAGES ARISING FROM THE  
SALE OR USE OF ANY BLAUPUNKT CAR AUDIO PRODUCTS, WHETHER SUCH CLAIM IS IN CONTRACT OR TORT. NO  
ATTEMPT TO ALTER, MODIFY, OR AMEND THIS WARRANTY SHALL BE EFFECTIVE UNLESS AUTHORIZED IN WRITING BY  
AN OFFICER OF ROBERT BOSCH CORPORATION.  
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED, INCLUDING  
ANY WARRANTY IMPLIED BY LAW, WHETHER FOR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR  
OTHERWISE AND SHALL BE EFFECTIVE ONLY FOR THE PERIOD THAT THIS EXPRESS WARRANTY IS EFFECTIVE.  
ANY IMPLIED WARRANTY SHALL BE LIMITED IN DURATION TO ONE YEAR FROM DATE OF PURCHASE. SOME STATES IN  
THE U.S. DO NOT ALLOW LIMITATIONS ON HOW LONG IMPLIED WARRANTY LASTS. SO THE ABOVE LIMITATIONS MAY  
NOT APPLY TO YOU.  
THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY  
FROM STATE TO STATE IN THE U.S.  
In the event any provision, or any part or portions of this warranty shall be held invalid, void or otherwise unenforceable, such  
holding shall not affect the remaining part or portions of that provision or any other provision hereof.  
ROBERT BOSCH CORPORATION  
BLAUPUNKT CUSTOMER SERVICE  
2800 SOUTH 25TH AVENUE  
BROADVIEW, IL 60155  
TEL: 1-800-950-2528  
BLAUPUNKT TECHNICAL SUPPORT  
Blaupunkt is constantly working on making the operating instructions clearer and easier to understand. However,  
if you still have questions on how to operate the amplifier, please contact your dealer or the telephone hotline for  
your country. You will find the hotline telephone numbers printed at the back of this booklet.  
– 12 –  
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SERVICE NUMBERS • SERVICE-NUMMERN • NUMÉROS DU SERVICE APRÈS-VENTE  
NUMERI DEL SERVIZIO DI ASSISTENZA • NÚMEROS DE SERVICIO  
NÚMERO DE SERVIÇO • SERVICENUMMERS • TELEFONNUMMER FÖR SERVICE  
Country:  
Germany  
Austria  
Phone:  
Fax:  
WWW:  
(D)  
0180-5000225  
01-610 3150  
02-525 51004  
44 898 360  
05121-49 4002  
01-610 393 91  
02-525 5263  
44-898 644  
(A)  
Belgium  
Denmark  
Finland  
(B)  
(DK)  
(FIN)  
(F)  
09-435 991  
09-435 99236  
01-4010 7320  
01-89583 8394  
01-576 9473  
01-10098830  
02-369 6464  
40 2085  
France  
01-4010 10007  
01-89583 8880  
0800-550 6550  
01-4149400  
02-369 6331  
40 4078  
Great Britain (GB)  
Greece  
Ireland  
Italy  
(GR)  
(IRL)  
(I)  
Luxembourg (L)  
Netherland  
Norway  
(NL)  
023-565 6348  
66-817 000  
023-565 6331  
66-817 157  
(N)  
(P)  
Portugal  
Spain  
01-2185 00144  
1502-120234  
08-7501500  
01-8471644  
02-6130 0441  
01-333 9575  
0800-118922  
0212-3400677  
800-950-2528  
01-2185 11111  
916-467952  
08-7501810  
01-8471650  
02-6130 0514  
01-324 8756  
022-8771260  
0212-3460040  
708-681-7188  
(E)  
Sweden  
Switzerland  
(S)  
(CH)  
Czech. Rep. (CZ)  
Hungary  
Poland  
Turkey  
(H)  
(PL)  
(TR)  
(USA)  
USA  
Brazil  
(Mercosur)  
Malaysia  
(BR)  
+55-19 37100 2769 +55-19 37100 2773  
(Asia Pacific) (MAL)  
+604-6382 474  
+604-6413  
Robert Bosch Corporation  
Sales Group - Mobile  
Communications Division  
2800 S. 25th Avenue  
Blaupunkt GmbH  
Robert Bosch Strasse 200  
D-31139 Hildesheim  
Germany  
Broadview, IL 60155 U.S.A.  
Copyright 2005 by the Robert Bosch Corporation  
No portion of this work may be reproduced in any form without the written consent of the Robert Bosch Corporation  
Printed in China  
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