BLAUPUNKT VERONA ID39 COLOR (7 660 370) YEAR 1981

The BLAUPUNKT  VERONA ID39 COLOR (7 660 370)  is a 22 inches (56cm) color television with 39
programs with  with PLL frequency synthesized tuning system, such television tuning system employs a frequency synthesizer system for establishing the tuning of the receiver, featured with a Microcomputer driven synthesis system.

The system employed in the tv permits utilization of a frequency synthesizer tuning system which correctly tunes to a desired television station or channel even if the transmitted signals from that station are not precisely maintained at the proper frequencies even in combination of a fine tuning adjustable by the user.
Accordingly, it is an object of this invention to provide an improved tuning system for a television receiver.
It is an additional object of this invention to provide an improved frequency synthesizer tuning system for a television receiver.


This model series was introducing at the time the PLL synthesizer tuning system first time Microcomputer controlled with direct channel calling feature even from remote control. The PLL frequency synthesized electronic
tuning system provides free and easy channel selection. and lets you tune directly to any chan-
nel using the channel number buttons (0~9 and key) on the remote control !!
A microcomputer control system is described for effecting channel tuning and function selection in a television receiver. The system will respond to commands entered by a set of controls at the television receiver or to remote control commands received at the television receiver. A channel number display is also provided whereby the channel number of a station currently tuned is displayed. A microprocessor within the system is programmed to validate control information received from an operator either by remotely generated commands or by controls located on the television receiver. Operator supplied information is processed and implemented by the microprocessor control system to effect control over the television receiver.
Microprocessor technology has recently provided circuit designers with a new basic design component. The microprocessor is capable of duplicating many functions heretofore realized with the use of large scale computer systems. The microprocessors have the advantage of being small, low power consumption devices capable of being programmed with instructions for executing mathematical algorithms on data supplied to the microprocessor. The microprocessor, when properly programmed, will execute a set of instructions providing output data during execution which may be used to control a process or apparatus.

PLL SYNTHESIZED TUNING System Concepts:

INTRODUCTION Digital tuning systems are fast replacing the conventional mechanical systems in AM FM and television receivers The desirability of the digital approach is mainly due to the following features * Precise tuning of station frequencies
* Exact digital frequency display
* Keyboard entry of desired frequency
* Virtually unlimited station memory
* Up down scanning through the band
* Station ‘‘search’’ (stop on next active station)
* Power on to the last station
* Easy option for time-of-day clock In addition
" recent "developments in large scale integrated circuit technology and new varactor diodes for the AM band have made the cost-benefit picture for digital tuning very attractive System partitioning is extremely important in optimizing this cost-benefit picture as will be discussed.

SYSTEM DESCRIPTION
A simplified block diagram of a typical digitally tuned receiver is shown in Figure 1 Notice this receiver could be one for AM FM marine radio or television it makes no difference The frequency synthesizer block generates the local oscillator frequency for the receiver just as a conventional mechanical tuner would However the phase-locked-loop (PLL) acts as an integral frequency multiplier of an accurate crystal controlled reference frequency while the mechanical type provides a continuously variable frequency output with no reference Some method of controlling the value of the multiplier for channel tuning must be provided The other RF IF and audio video circuitry will be the same as in the mechanical tuning method There are many different ways to partition the frequency synthesizer system to perform the digital tuning function................


The control of television receivers has heretofore required separate circuits for effecting channel selection, function selection and level setting, and remote control. With the microprocessor it has become possible to control these performance aspects with a single preprogrammed microprocessor and suitable input/output circuits. Data indicating the selection of a new channel to be tuned or a function to be controlled by an operator of the television receiver may be supplied to the input port of the microprocessor. This data may be supplied from a set of hand controls or a transducer for detecting remotely generated commands. Remote control systems presently incorporated in many television receivers provide operation of a television receiver by transmitting information bearing ultrasonic sound waves or infrared light waves to the television receiver. These waves when received at the television receiver are decoded into an electrical signal for effecting the change in channel tuning or function level. The microprocessor has the capability of validating this electrical signal and performing all decoding pursuant to preprogrammed instructions. These instructions, when executed by the microprocessor, 
generate a digital signal for effecting the desired channel change or function level change.

It was featuring fist time The TDA3300 Motorola's third generation colour processing,Motorola's third generation PAL decoder system (Chroma III) employs a single 40 -pin i.c., type TDA3300. Amongst the features of this i.c. are low dissipation, typically 600mW, with a single 12V supply; a patented 90° phase - shift system requiring no adjustment; and direct inputs for on -screen (data, TV games, etc.) displays, with a complementary fast blanking input. Of particular interest is the beam limiting and automatic black -level adjustment system, the latter making it unnecessary to incorporate preset controls to set up the black level. These arrangements rely on three high -voltage transistors to monitor the beam currents, providing feedback signals for the i.c.  If the reference voltage is exceeded, the beam current limiting action comes into operation, reducing the contrast. The system has been designed to enhance the set's video and digital signal handling capability. During the flyback time the feedback input impedance rises, activating a further internal comparator. This compares the tube's cut-off current (a hot cathode doesn't cut off completely) with another internal reference voltage. The resultant signal is integrated and added to the output (at the output clamp) to provide the automatic black -level correction. Readers may recall that a similar idea, using discrete circuitry, is employed in certain B and 0 colour chassis. The advantage is that the black level is held constant throughout the tube's life, with no grey scale drift.
The device will accept a PAL or NTSC composite video
signal and output the. three colour signals—needing only a simple
driver amplifier to interface with the picture tube ,furthermore it features first time an apparatus and method for the automatic setup of a CRT operating point, or dc signal level (black), as well as the contrast, or gain level (gray), of a video display by sampling the CRT signal level of the individual cathodes and locking the dc signal level to a common dc setup reference and gain level to a value determined by a common contrast control signal and gain reference. An apparatus and method in which a common brightness control signal is modulated by a common contrast control signal such that a brightness control pedestal is added to each video signal path of a video display whereby picture black level does not change with contrast. the system is provided for achieving and maintaining gray scale tracking in a multibeam, cathode ray display device, despite fluctuations in the electrical characteristics of the display device and of video amplifiers driving the device. Tracking is accomplished by measuring the actual beam currents produced during the applications of test signals to the amplifiers and automatically adjusting the biases and gains of the amplifiers in response to differences between the measured beam currents and predefined beam currents which should be produced. The invention can also be used to automatically stabilize the beam current in a single beam cathode ray display device.

First Blaupunkt model series featuring the CHASSIS FM100-20DA 
Furthermore it features first time the Automatic Black Level set-up.

It features a RCA CRT tube.

Pictures from this set are superb surpassing widely any modern LCD Toy.

These were highly durable and reliable except for the EHT Transfomer which was failing very often.

Feature first time the TDA4600 power supply design. Switching regulators serve as efficient and compact power supplies for instruments such as television receivers. A switching regulator may typically comprise a power transformer having a primary winding coupled to an input voltage source and to a power switch and a secondary winding coupled to a rectifier arrangement for developing a DC supply voltage for the instrument. A regulator control circuit generates pulse width modulated control signals that control the duty cycle of the power switch. A power switch is coupled to an inductance and a source of input voltage. A control circuit is coupled to the power switch for producing the switching thereof to transfer energy from the input voltage source to a load circuit coupled to the inductance. The control circuit is responsive to control voltages for varying the duty cycle of the power switch to control the transfer of energy to the load. A first control voltage representative of a variation in an energy level of the load circuit is developed to control the duty cycle in a manner that regulates the energy level.


(To see the Internal Chassis Just click on Older Post Button on bottom page, that's simple !)








Blaupunkt GmbH is (WAS) a German manufacturer of electronics equipment, noted for its home and car audio equipment. It was a 100% subsidiary of Robert Bosch GmbH until March 1st, 2009 (Date of closing) when its Aftermarket and Accessories branch including the brand name were sold to Aurelius AG of Germany for an undisclosed amount. Founded in 1923 in Berlin as "Ideal", the company changed its name to "Blaupunkt" in 1938, German for "blue point" or "blue dot" after the blue dot painted onto its headphones that had passed quality control. After the Second World War, Blaupunkt moved its headquarters and production to the city of Hildesheim.

Today the majority of Blaupunkt products are manufactured overseas, with large manufacturing centers in Tunisia (speakers) [WTF !!! !!!] and Malaysia (speakers and electronics) [arrrrgggghhh!]. During the 1960 and 1970s, Blaupunkt had become the leading German manufacturer for car radios and car audio equipment. Blaupunkt was involved in the development of the Autofahrer-Rundfunk-Informationssystem traffic-information system for car radios, and provided this feature on their German-market car radios from the late 1970s. The company attempted to have ARI used in the USA but had only a few radio stations per major city involved.Founded in 1923 in Berlin as "Ideal", the company changed its name to "Blaupunkt" in 1938, German for "blue point" or "blue dot" after the blue dot painted onto its headphones that had passed quality control.

During World War II the company used slave labour at Groß-Rosen concentration camp.

After the Second World War, Blaupunkt moved its headquarters and production to the city of Hildesheim. Today the majority of Blaupunkt products are manufactured overseas, with large manufacturing centres in Tunisia (speakers) and Malaysia (speakers and electronics).

During the 1960 and 1970s, Blaupunkt had become the leading German manufacturer for car radios and car audio equipment.


Blaupunkt was involved in the development of the Autofahrer-Rundfunk-Informationssystem traffic-information system for car radios, and provided this feature on their German-market car radios from the late 1970s. The company attempted to have ARI used in the USA but had only a few radio stations per major city involved.

For many years, Blaupunkt car audio equipment models often carried the name of a city somewhere in the world, e.g. "London RDM126". In Blaupunkt model nomenclature, this can be translated as "An RDS CD player capable of controlling a Multichanger, rated at 4x30W RMS (4x30 = 120) from model year 1996". High-end models typically had German place names.

Blaupunkt also used the brand "Velocity" to sell products aimed at the top, audiophile end of the market. Audi, Volkswagen, Porsche, Mercedes, Vauxhall, Pontiac and BMW all fit Blaupunkt products into their cars, often branded with the car manufacturer's own mark (e.g. The VW Gamma or Audi Symphony lines), with Fiat using them, occasionally unbranded but generally unmodified. Some later Holden Astra models are fitted with Blaupunkt systems (with others being produced by Delphi). Blaupunkt also specialised in coach installations, selling TVs, multiple-speaker setups and PA equipment to that industry. However, that part of the business remained with Robert Bosch Car Multimedia GmbH, a 100% subsidiary of Robert Bosch GmbH.

Blaupunkt was part of the mobile communications division of the Robert Bosch group, a world leading manufacturer of industrial and automotive systems.

Blaupunkt's research, design and development headquarters are based in Hildesheim, Germany, where approx 3,000 staff are based.

Manufacture takes place either in Germany, or other plants in Portugal or Malaya where another 5,100 staff are employed
blaupunkt production

Current production is in excess of 4 million car radios every year.

Blaupunkt started life in 1920's Germany as the "Ideal" radio company of Berlin. Initially it produced only headphones. Quality control was paramount even in those days and each set of headphones that passed its final test was indicated by a blue circular sticker.

Before long customers simply began to ask for "Blue Dot" headphones - the symbol became the companies' trade mark, and in 1938 the company name.

This is where we get the name "Blaupunkt" - "Blue Spot" in German.
blaupunkt production

Bosch acquired the company over 60 years ago, and following the Second World War, the company made the move to Hildesheim It was at this time, 1932, that Blaupunkt introduced the world's first car radio: the AS5. This long, medium and short wave monster was about the size of a modern day microwave oven. Because of its bulk it could not be mounted within reach of the driver and had to be operated by a remote control on the steering wheel. Because car radio aerials were not yet developed, wires had to be run over the roof and along the running boards to get a signal. The cost in those days was 465 Reich marks; about one third the price of a small car.

In 1959, the one millionth car radio rolled off the production line. Each valve-based radio consisted of 1,693 separate parts. In 1969 Blaupunkt took advantage of the emerging FM radio system to introduce the world's first stereo car radio. A few years later the Phillips Compact Cassette was incorporated into sets.

In the late 1970's it was realised that the car radio could contribute toward road safety, and Blaupunkt developed the ARI traffic news detector which has evolved into the current Radio Data System (RDS) of traffic and related information.

The 1980's saw the first microprocessor digitally tuned radio cassette and in 1983 the first car radio equipped with EON station identification was released.

The first CD player incorporated into a dashboard mounted radio was introduced in 1988..
blaupunkt production

With increasingly attractive car radio systems, theft became a major problem. In 1990 the KeyCard smart card owner authorisation system was a big step forward in crime deterrence. This feature was the first recorded use of smart card technology in the automotive field.

In 2002, the Woodstock DAB52 receiver was launched. This is the world's first combined MP3 / CD / DAB receiver housed within a standard DIN sized enclosure. This ground-breaking unit was enhanced in 2003 with the DAB53 and in 2004 the DAB54 models that added the option of recording DAB broadcasts directly onto a MMC / SD memory card.

Die Blaupunkt GmbH ist eines der großen deutschen Unternehmen mit Weltgeltung. Gegründet in den 20er Jahren, ist Blaupunkt heute eine hundertprozentiges Tochterunternehmen der Bosch-Gruppe. Die Unternehmenszentrale liegt im niedersächsischen Hildesheim.

Blaupunkt stellte früher Kopfhörer, Radio-, Fernseh- und HiFi-Geräte her. Heute ist das Unternehmen europäischer Marktführer bei Autoradios und Car-Multimedia-Systemen; darüber hinaus gehört es zu den großen Anbietern von Navigationssystemen für den automobilen Einsatz.

Geschichte

Keimzelle der Unternehmensgeschichte ist die Berliner „Radiotelefon- und Apparatefabrik“ Ideal. Diese 1923 gegründete Firma stellt zunächst Kopfhörer her, die mit einem „blauen Punkt“ als Prüfsiegel gekennzeichnet wurden. Bald fragen die Käufer nur noch nach den "Blaupunkt-Kopfhörern" – es war der erste Schritt auf dem Weg vom Qualitätssymbol zum Markenzeichen (1924)
und zum heutigen Firmennamen "Blaupunkt" (1938).
Bereits 1932 stellt das Unternehmen mit dem „Autosuper AS 5“ das erste in Europa entwickelte Autoradio vor. Dieser Apparat für den Mittel- und Langwellenempfang ist mit 10 Litern Rauminhalt üppig dimensioniert und mit einem Kaufpreis von 465 Reichsmark ein Luxusartikel (ein kompletter Kleinwagen kostet damals weniger als 1.500 Reichsmark).
Durch wegweisende Innovationen trägt Blaupunkt entscheidend zur Popularisierung des Autoradios bei: 1952 baut man das erste UKW-Autoradio der Welt, 1969 folgt das erste Stereo-Autoradio, 1974 der erste Verkehrsfunk-Empfänger. Viele digitale Pionierentwicklungen rund um den Empfang und Klang auf Rädern stammen ebenfalls aus Hildesheim. Automobilgerechte Multimedia-Techniken in jeder Form stehen weiterhin im Mittelpunkt der Forschung und Entwicklung.
Mit dem 1989 vorgestellten „TravelPilot“ leistet Blaupunkt auch wesentliche Schrittmacherdienste für eine weitere Technologie, die das Autofahren komfortabler und sicherer macht: Der TravelPilot gilt als das erste serienreife Navigationssystem für den Straßenverkehr in Europa. Eines seiner Nachfolgemodelle ist das erste serienreife Gerät mit dynamischer Zielführung, die automatisch aktuellste Verkehrsinformationen verarbeitet und so Staus umfahren hilft. Neben fest eingebauten gehören längst auch mobile Navigationssysteme zum Blaupunkt-Programm.

Aktuelle Zahlen

Heute (12/2006) hat Blaupunkt weltweit über 9.000 Mitarbeiter, 2.300 davon in Hildesheim. Weitere Fertigungs- und Entwicklungsstätten befinden sich in Ungarn, Portugal, Malaysia, China und Tunesien. Das Unternehmen produziert jährlich über 500.000 Navigationssysteme, 6 Mio. Autoradios sowie 19 Mio. Autolautsprecher. Der Umsatz liegt bei ca. 1,4 Mrd. Euro.

Some References:

"'Aurelius AG Acquires Blaupunkt". Aurelius AG Press Release. 18 December 2008. Archived from the original on 28 February 2009.


Germany, Hannoversche Allgemeine Zeitung, Hannover, Niedersachsen,. "Autoelektronik-Spezialist – Blaupunkt stellt Insolvenzantrag". Hannoversche Allgemeine Zeitung (in German). Retrieved 2017-12-21.

"Blaupunkt Hildesheim entlässt auch die letzten Mitarbeiter". DEUTSCHE WIRTSCHAFTS NACHRICHTEN (in German). Retrieved 2017-12-21.

"Several possible buyers for Blaupunkt". RetailDetail. 2015-11-20. Retrieved 2017-12-21.

"Blaupunkt winding up Penang operations". NST Online. 2015-10-22. Retrieved 2017-12-21.

Sethi, Anand Kumar (2013). The Business of Electronics: A Concise History. New York: Palgrave Macmillan. p. 33. ISBN 9781137330420.

"Robert Bosch GmbH". Answers.com. Retrieved 31 May 2013.

White, Annie (March 2019). "AV Club: Odyssey of Sound". Car and Driver.

"Blaupunkt Hildesheim entlässt auch die letzten Mitarbeiter". DEUTSCHE WIRTSCHAFTS NACHRICHTEN (in German). Retrieved 2017-12-21.

"Rockford Announces Details on Blaupunkt Deal | ceoutlook.com". ceoutlook.com. 2012-07-11. Retrieved 2017-12-21.

"Archived copy". Archived from the original on 9 August 2012. Retrieved 14 July 2012.
Blaupunkt company profile
Bosch BLAUPUNKT HISTORY
TV 1950
Radio 1963
Radio 1938