GRUNDIG SUPER COLOR A3405 SERIE F3016 CHASSIS CUC220 UNITS VIEW.

VIDEO + RGB UNIT (FARB BAUSTEIN 29504-005... )

TDA3561A (PHILIPS)

Luminance+Chrominance+RGB MATRIX

PAL decoder TDA3561A

GENERAL DESCRIPTION



The TDA3561A is a decoder for the PAL colour television standard. It combines all functions required for the identification
and demodulation of PAL signals.

Furthermore it contains a luminance amplifier, an RGB-matrix and amplifier. These
amplifiers supply output signals up to 5 V peak-to-peak (picture information) enabling direct drive of the discrete output
stages.
The circuit also contains separate inputs for data insertion, analogue as well as digital, which can be used for text display systems (e.g. (Teletext/broadcast antiope), channel number display, etc. Additional to the TDA3560, the
circuit includes the following features:

· The peak white limiter is only active during the time that the 9,3 V level at the output is exceeded.
The start of the
limiting function is delayed by one line period. This avoids peak white limiting by test patterns which have abrupt transitions from colour to white signals.

· The brightness control is obtained by inserting a variable pulse in the luminance channel. Therefore the ratio of brightness variation and signal amplitude at the three outputs will be identical and independent of the difference in gain of the three channels. Thus discolouring due to adjustment of contrast and brightness is avoided.

· Improved suppression of the internal RGB signals when the device is switched to external signals, and vice versa.

· Non-synchronized external RGB signals do not disturb the black level of the internal signals.

· Improved suppression of the residual 4,4 MHz signal in the RGB output stages.

· Cascoded stages in the demodulators and burst phase detector minimize the radiation of the colour demodulator
inputs.

· High current capability of the RGB outputs and the chrominance output.

ABLENKUNG 90° 29504-007.21 TDA2594 HORIZONTAL COMBINATION
The TDA2594 is a monolithic integrated circuit intended for use in colour television receivers.
The circuit incorporates the following functions:
0 Horizontal oscillator based on the threshold switching principle.
0 Phase comparison between sync pulse and oscillator voltage (tp1).
0 Internal key pulse for phase detector (-D) fYP~ ‘I V
V3-1elp-pl WP- 1° V

* Permissible range: 1 t


TDA2653A Vertical deflection circuit

DESCRIPTION
The TDA2653A is a monolithic integrated circuit for vertical deflection in large screen colour television receivers.
The circuit incorporates the following functions:
· Oscillator; switch capability for 50 Hz/60 Hz operation
· Synchronization circuit
· Blanking pulse generator with guard circuit
· Sawtooth generator with buffer stage
· Preamplifier with fed-out inputs
· Output stage with thermal and short-circuit protection
· Flyback generator
· Voltage stabilizers

PINNING
1. Oscillator adjustment
2. Synchronization input/blanking output
3. Sawtooth generator output
4. Preamplifier input
5. Positive supply of output stage
6. Output
7. Flyback generator output
8. Ground
9. Positive supply (VS)
10. Reference voltage
11. Sawtooth capacitor
12. 50 Hz/ 60 Hz switching voltage
13. Oscillator capacitor.

APPLICATION INFORMATION
The function is described against the corresponding pin number
1, 13. Oscillator
The oscillator frequency is determined by a potentiometer at pin 1 and a capacitor at pin 13.
2. Sync input/blanking output
Combination of sync input and blanking output. The oscillator has to be synchronized by a positive-going
pulse between 1 and 12 V. The integrated frequency detector delivers a switching level at pin 12.
The blanking pulse amplitude is 20 V with a load of 1 mA.
3. Sawtooth generator output
The sawtooth signal is fed via a buffer stage to pin 3. It delivers the signal which is used for linearity control,
and drive of the preamplifier. The sawtooth is applied via a shaping network to pin 11 (linearity) and via a
resistor to pin 4 (preamplifier).
4. Preamplifier input
The DC voltage is proportional to the output voltage (DC feedback). The AC voltage is proportional to the
sum of the buffered sawtooth voltage at pin 3 and the voltage, with opposite polarity, at the feedback
resistor (AC feedback).
5. Positive supply of output stage
This supply is obtained from the flyback generator. An electrolytic capacitor between pins 7 and 5, and a
diode between pins 5 and 9 have to be connected for proper operation of the flyback generator.
6. Output of class-B power stage
The vertical deflection coil is connected to this pin, via a series connection of a coupling capacitor and a
feedback resistor, to ground.
7. Flyback generator output
An electrolytic capacitor has to be connected between pins 7 and 5 to complete the flyback generator.
8. Negative supply (ground)
Negative supply of output stage and small signal part.
9. Positive supply
The supply voltage at this pin is used to supply the flyback generator, voltage stabilizer, blanking pulse
generator and buffer stage.
10. Reference voltage of preamplifier
External adjustment and decoupling of reference voltage of the preamplifier.
11. Sawtooth capacitor
This sawtooth capacitor has been split to realize linearity control.
12. 50 Hz/60 Hz switching level
This pin delivers a LOW voltage level for 50 Hz and a HIGH voltage level for 60 Hz. The amplitudes of the
sawtooth signals can be made equal for 50 Hz and 60 Hz with these levels.




Audio - Sound Unit (NF BAUSTEIN 29504-004.23)




TDA1905 (SGS) Audio Output




TUNER UNIT

















































- TUA2000 (SIEMENS) OSC+ MIXER

The TUA 2000-4 is a  monolithically integrated circuit and suitable as a tuner for the VHF
range up to 400 Mkz, e.g. for TV tuners.
RF section
Few externa! components
Stable oscillator frequency and amplitude with very low interference radiation
Optimal rejection of oscillator and input frequencies at the IF output due to a decoupled
active ring mixer circuit
High interference voltage resistance
High-impedance mixer input, for symmetrical and asymmetrical connections
IF post-amplifier for the UHF IF signal
IF section
@
 Optimal cross-talk rejection
@
 Large signal-modulation range
@
 Low noise figure with wide minimum over large load-impedance range

Circuit description
The TUA 2000-4 contains a symmetrical mixer input, as well as a multiplicative mixer. The
oscillator amplitude is regulated. All oscillator operating currents and voltages are stabilized,
so that the oscillator’s amplitude and frequency are largely independent of temperature
and operating voltage changes.
The IF amplifier has been provided with a high impedance input.
The output has two open collector connections.
During UHF operation, oscillator and mixer are switched off and the UHF IF input coupling
stage is activated.
RF section
Few external components
Stable oscillator frequency and amplitude with very low interference radiation
Optimal rejection of oscillator and input frequencies at the iF output due to a decoupled
active ring mixer circuit
High interference voltage resistance
High-impedance mixer input, for symmetrical and asymmetrical connections
IF post-amplifier for the UHF IF signa!
IF section
@
 Optima! cross-talk rejection
@
 Large signal-modulation range
@
 Low noise figure with wide minimum over large load-impedance range

Pin description

1. “Open collector” output of the IF SAW driver
2. “Open collector” output of the IF SAW driver
3. Input for external reference voltage
4. Low-ohmic collector output to the high reference point of a parallel resonant circuit
5. High-ohmic base input to the high reference point of a parallel resonant circuit
6. Oscillator signal output for counter connection
7. GND
8. “Open collector” output of the mixer
9. “Open collector” output of the mixer
10. Supply voltage
11. Asymmetrical IF signal input for the UHF IF signal
12. Mixer high-impedance differential input
13. Mixer high-impedance differential input
14. Switching voltage input for the VHF-UHF switch selection
15. Asymmetrical signal input of the IF SAW amplifier
16. GND

- TDA5500 (SIEMENS) IF VIDEO

- TBA120T (TELEFUNKEN) IF AUDIO


TBA120T (Siemens) SIF (Sound IF)


















- U264B (TELEFUNKEN) PRESCALER (Under the screen in the middle of PCB)






TUNING SYSTEM 96 PROGR. (ABSTIMMUNG BAUSTEIN 29504- 003.04)









































TUNING SYSTEM 96 PROGR. (ABSTIMMUNG BAUSTEIN 29504- 003.04)

96 Programs frequency synthesized tuning system based on SIEMENS uController and SIEMENS
synthesizer and memory.

- SDA2010 A013 uController

- SDA2112-3 (Uc controlled frequency systhesizer)

- SDA2006 (Memory x 3)
512-Bit Nonvolatile EAROM SIEMENS  SDA2006 MOS circuit

General features
• Nonvolatile memory of electrical, word-organized reprogrammability, in n channel floating gate technology
• 512-bit storage capacity (32 words of 16 bits, each)
• Serial word address, chip select, and instruction input via an 8-b1t or 12-bit control word (switchable by means of external components)
• Erase and write duration determined with the aid of chip-internal control
• Signal outputs with open-drain stages active signal inputs and outputs can be inverted by terminal wiring
• Number of reprogrammings > 104
• Unlimited number of read-out procedures without refresh
• Min. 10 years storage time

Circuit description
Data transfer
Data transfer with the SDA 2006 is performed serially via a 5-line bus, consisting of:
Data input D;
Data output D q/D;;"
Data input signal REC/REC (receive data)
Clock input <P/iP
Programming output signal [/L (load)
The active input or output levels, respectively, may be inverted via the input INV. They are switchable, as a group, in order to facilitate adaptation to different external circuits.


Read-out (figure 1a and 1b)
Prior to the read operation of the memory the 8-bit or 12-bit control word must be serially clocked into the data input D. 8 or 12 clock pulses, respectively, at the input <PIP are necessary for the input of the control word. During the input, the REC/REC input is active (active high for low at INV, active low for high at INV). The information input is closed by means of the trailing edge of the REC/REC signal and at chip select the read-out instruction is decoded. In this way, also the data output D ;/D 9 becomes low-ohmic. With the aid of a further clock pulse S, the read-out operation is initialized. The data is shifted with the trailing edge of further clock pulses. The LSB arrives at the data output with the first of these pulses. During the read-out operation via the control word either the first data bit D 1 or the ninth data bit D 9 can be chosen as LSB. The read-out operation can be discontinued after any number of shift pulses. Thus.every stored 16-bit data word can also be read split into two 8-bit data words.

Reprogramming (figure 2a and 2b)
Prior to programming, the 16-bit data word (D 1 as LSB, first), then the 8-bit or 12-bit control word at the data input D; must be clocked in by means of the active REC/REC signal. It is the trailing edge of the REC/REC signal which decodes the programming instruction at chip select. The reprogramming operation, however, only starts with the trailing edge of a further clock pulse and is recorded to the memory controller via the [/L signal.

The duration tprog of reprogramming is determined by chip-internal control. Independent of the external operating voltages VpH and Vp1the erase and the write operation are only finished after every memory has reached the desired state. During rewriting, the memory cannot be influenced externally, because the input REC/REC, PIP and D; remain blocked. Premature termination of the operation can only be caused by zero level at the input RES.

Reset function
A low level voltage at the input RES moves the memory into the reset status. A voltage divider is internally connected to the input. It reliably finishes the reset status for V00 >11 V.

Voltage supply

The SDA 2006 includes four brought out voltage inputs Vpp, Vp1, V00 , V88 with respect to Vss (ground). Normally, V00 and Vp1are externally interconnected. The voltages VpH and Vp1 are only required during the programming operation. During read out or in the quiescent state, they may also be open or grounded. The values of these voltages are only of influence on the duration, but not on the reliability of the nonvolatile storage operation. Figure 3 shows an appropriate circuit configuration as tuning memory in TV sets.

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PLL Device for 125 kHz Resolution for TV Application SIEMENS  SDA2112-2 Bipolar circuit

The SDA 2112-2 is fabricated in ASBC technology. In connection with a VCO (tuner) and a high-speed 1:64 divider, it forms a digitally programmable phase-locked loop for producing TV sets with PLL frequency-synthesis tuning. The PLL enables crystal-controlled setting of the tuner oscillator frequency for a 125 kHz rsolution in the frequency bands I/IIl, IV, and V.

A serial interface provides for simple connection to a microprocessor. The latter loads the programmable divider and the band-selection outputs with the appropriate information.

Features
@ No external integrator necessary
@ Internal buffer
@ Microprocessor compatible



SDA 2112-2 description (refer to block diagram) A switchable 16/17 counter is triggered by the ECL signal inputs F/F. The counter, in connection with a 4-bit and a 9-bit programmable, synchronous counter, forms a programmable, 13-bit synchronous divider using the dual-modulus technique, the 4-bit counter controlling the switchover from 16 to 17. Divider ratios of N = 256 to 8191 are possible. For test purposes the carry of the synchronous divider is available at the LDM output (open collector). The 16-bit shift register and latch is subdivided into 13 bits for storing the divider ratio N and 3 bits for controlling the three band-selection outputs. The telegram is shifted in via the serial data input IFO with the HL edge of the shift clock CPL when the enable input PLE is also on high level. First the complement of the divider ratio N, beginning with the LSB, is inserted in binary code, followed by the three control bits for the band-selection switching (see truth table). The 16-bit latch takes the data from the shift register when the enable input PLE is on low level. The IC includes a crystal-controlled, 3-MHz clock oscillator. The output signal is divided down to 1.953125 kHz (reference signal) by a 1/1536 reference divider. The oscillator frequency appears at the TTL output OSC. The clock of 62.5 kHz is available at the open-collector output CL. The divided input signal is compared with the reference signal in a digital phase detector. If the falling edge of the input signal appears prior to the falling edge of the reference signal, the DOWN output of the phase detector turns to high level for the duration of this phase difference. In the reverse case the UP output turns to high level. If the two signals are in phase, both outputs remain at low level. The UP/DOWN outputs control the two current sources I+ und! (charge pump). If the two outputs are low (PLL locked), the charge-pump output PD will turn to the high-impedance state (TRISTATE). An L signal appears at the LOCK IND output if frequency and phase are synchronous. The current sources I+ and I~ are then reduced from 300 to 100 pA. The current pulses generated by the charge pump are integrated to form the tuning voltage by means of an active lowpass filter (external pull-up resistor to supply Vso and external RC circuitry). The dc output signal appears at Viy, and serves as a tuning voltage for the VCO. The band-selection outputs (UHF, VHF, Bd I/II) contain current drains with open collectors. In this way PNP transistors working as band-selection switches can be connected directly without current-limiting resistors (see application circuit).

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Application-Oriented Single Chip Microcomputer SIEMENS SDA2010 MOS circuit.

Features
@ 8 bit CPU, ROM, RAM, IN/OUT in a DIP 40 package
@ 4 analog outputs with 6 bit resolution
@ 30 digital IN/OUT lines
Two serial interfaces
Two 8 bit interfaces
Two 4 bit interfaces
Two test inputs
2 Kbyte ROM
64 byte RAM
10 ps cycle time — 1 or 2 cycles per instruction
Zero passage detector
Interface for mudulated digital signal
Interval timer/counter
5 V supply voltage
Instructions - subset of SAB 8048

Brief description
The SDA 2010 stresses application-specific control functions surpassing the former purely numeric computation performance. As a result, the use of additional hardware could be reduced and software operations have been simplified, optimizing cost savings during the developmental and production stages. Although the SDA 2010 was designed for electronic entertainment devices, it is equally suitable for mass-produced applications requiring highly economic components. The SDA 2010 includes a 2 Kbyte program memory (ROM), a 64 byte data memory (RAM) and four 6 bit D/A converters. The 30 digital IN/OUT lines are comprised of two 4 and 8 bit ports each, two test inputs and 2 serial interfaces consisting of one data and one clock line each. Test input TO processes signals modulated with approx. 30 kHz and is equipped with a digitai demoduiator, which derives the enveiope curve from the moduiaied digiiai signal. Since the digital demodulator forwards an unmodulated signal without changing it, test input TO can also function as a normal digital input during operations with standard H/L levels. Test input T1 includes a zero passage detector and can also serve as a normal digital input. The SDA 2010 is equipped with its own oscillator and timer/counter.

The instruction set includes 65 instructions (1-2 bytes), which can be processed in max. 2 cycles. Numerical problems can be processed in either binary or BCD arithmetic modes. The large number of available bit-handling instructions increases the efficiency of the controller functions. The program development and system testing for the SDA 2010 are carried out on the SME development system in conjunction with the SDA 2010 emulator board EMB U2. The EMB U2 emulator consists of one 2 K EPROM (SAB 2716) as well as a 40 pin plug which is used to insert an SAB 8035 type microprocessor or an ICE 48 plug. In addition, the EBM U2 contains all the necessary hardware to simulate the four analog outputs and the serial and parallel interfaces of the SDA 2010. A 40 wire cable is used to connect the U2 emulator with the user system. A version without the ROM (SDA 3010) is available for in-house software development on an SME system. Technical data of the SDA 2010

Maximum ratings must carefully be observed to prevent the IC from being permanently
damaged.

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TDA1905 5W AUDIO AMPLIFIER WITH MUTING.DESCRIPTION
The TDA1905 is a monolithic integrated circuit in
POWERDIP package, intended for use as low
frequency power amplifier in a wide range of applications
in radio and TV sets:
– muting facility
– protection against chip over temperature
– very low noise
– high supply voltage rejection
– low ”switch-on” noise
– voltage range 4V to 30V
The TDA 1905 is assembled in a new plastic package,
thePOWERDIP, that offers the same assembly
ease, space and cost saving of a normal dual in-line
packagebutwith apower dissipationofup to6Wand
a thermal resistance of 15°C/W (junction to pins).
THERMAL SHUT-DOWN
The presence of a thermal limiting circuit offers the following advantages:
1) An overload on the output (even if it is permanent), or an above limit ambient temperature can be easily
tolerated since the Tj cannot be higher than 150 °C.
2) The heatsink can have a smaller factor of safety compared with that of a conventional circuit. There is
no possibility of device damage due to high junction temperature.
If for any reason, thejunction temperatureincreases upto 150°C, the thermalshut-down simply reduces
the power dissipation and the current consumption.
The maximum allowable power dissipation depends upon the size of the external heatsink (i.e. its thermal
resistance).