Daewoo DTZ-2881/28W8, DTZ-29U7/U3 Functional Overview Of the digital controller sound part

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CP-520/520A/520F Service Manual

intercarrier and an external second SIF(2NDSIFEXT), e.g. an intercarrier coming from a PIP frontend. In other applications a 10.7MHz radio IF or satellite FM may be connected to this input. The selected SSIF passes some anti alias filtering, is amplified in an AGC amplifier (SSIF AGC) and is then converted from analogue to digital (SSIF ADC).

The audio signal out of the AM demodulator is connected to the analogue crossbar at the video processor. All other inputs to this multiplexer/audio switch come from external, either from a PIP frontend or SCART/CINCH(AUDINx) or the DAC output signals from the digital controller. The audio AD converters are digitising the audio signals foreseen for further digital processing. One stereo output (AUDOUTS) is available for connections to SCART/CINCH sockets.

The sound part on the digital controller consists of the demodulator/decoder(DEMDEC), a digital input crossbar, the digital audio processing for the loudspeaker and DAC channels, the I2S processing and interfacing, a digital output crossbar as well as the DA conversion.

An auxiliary audio control (volume control, AUX audio contr.) is available on the video processor. Here it is applied to the headphone channel.

The part of the concept located in the digital controller will be described in the next chapters.

5.4.2 Functional Overview Of the digital controller sound part

The digital controller sound part consists of the SSIFADC, audio ADCs, DEMDEC HW, the sound DSP core, audio DACs and I2S interface hardware as shown in fig below. The DEMDEC part of the Sound DSP is used for the decoder and partly demodulator tasks. The AUDIO part provides the sound features, from the level adjust unit up to the output crossbar. Audio DACs and I2S hardware are converting the processed signals to analogue or digital audio.

The SSIF signal is applied to the SSIF ADC for conversion and is then fed to the DEMDEC hardware processing mainly for demodulation but also some decoding tasks. Remaining

DTV R&D Europe

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Contents Color Television Chassis CP-520 TDA8946J Stereo Audio Amplifier Contents Document History Main Features SpecificationsIC Description UOC III Series TDA8358J Vertical AmplifierALL Versions Schematic DiagramStereo and AV Stereo Versions Mono Versions Functional Description Sound ProcessorDocument History Version Date Comments EURO-SCART 1 21 Pin Signal Description Matching value GeneralPin Signal Description Matching value EURO-SCART 2 21 PinCHANNEL/FREQUENCY Table Channel Europe Ccir France Gbireland East OirtC48 C46C47 C49S20 S18S19 S21Safety Precaution Safety Instruction RAY Radiation PrecautionProduct Safety Notice Order Default setting Microcontroller Configuration Service ModeService Mode Navigation HOR CEN RED Gain GRN Gain Blue Gain RED Bias GRN BiasChassis Model Option Tuner OptionsRemarks Navigation in NVM Editor mode Entering into Factory modeEntering into NVM Editor mode Exit NVM Editor modeNVM Data Change List Vertical Geometry 1 G2 AlignmentWhite Balance Horizontal Picture CentringCorner B & Corner T EW Trapez 7 AGCBulgarian IC DescriptionIC Marking and Version CZECH, German DANISH, SpanishBlock Diagram QFP 128pin Short DescriptionGND3 BlkinBclin PBIN3GND2 SIFAGC/DVBAGCPllif QSSO/AMOUT/AUDEEAnalogue video processing stereo versions FeaturesAnalogue Video Processing all versions Analogue video processing mono versionsSound Demodulation all versions Audio interfaces and switching mono versionsStereo Demodulator and Decoder full stereo versions RDS/RBDS Audio Multi Channel Decoder stereo versions with Audio DSPController Display Data CaptureTDA8946J Stereo Audio Amplifier OUT1+ Pin Symbol DescriptionOUT1 ModeBlock diagram TDA8946J TDA8358J Vertical Amplifier 1 TDA8358JOutb INAINB InewPin description FeaturesGND Pin No Name Description General Description IIN H PIN Description Name SymbolOVP TJ TSDSymbol MIN Type MAX Unit Mosfet Electrical Characteristics IC PIN Rating DescriptionOCH F Circuit Description QSS sound circuit Functional Description of Video ProcessorVision if amplifier FM demodulatorMono Versions Audio input selector and volume controStereo and AV Stereo Versions ALL VersionsSynchronisation circuit Horizontal and vertical drive Colour decoder RGB output circuit Wprgb Write registers 11 I2C-BUS User Interface DescriptionPossible slave address Read registersOther features of the Demdec are Analog 2-CARRIER Systems Table Frequency modulationA2+ Korea ParameterA2/A2 CarriersystemswithnicamFunctional Overview Of the digital controller sound part Mixer IntroductionFmandamdemodulation Fmpilotcarrierpresentdetector FmidentificationFM/AMDECODING NicamdemodulationNicam AUTO-MUTE Service Parts List DTV- R&D Europe CCXB1H561K Cera Carbon Film Carbon Comp DTC-20T2FZS-S E30 4856310300 PCB Main CP-520A DTC 100 OHM J J500 85801065GY Packing AS DTC-20T2FZS-S DTC-21Y1FZF-S E33 4856310300 1N4937G 2.2K OHM F Packing AS DTC-21Y1FZF-S DTZ-29U7FZF-S Partsname 3M #232 6.0X2000M A001 4859809993 J38 85801065GY Packing AS DTZ-29U7FZS-S Exploded View Exploded View 7-2DTY-2880 Exploded View 7-3DTY-21U7 Exploded View 7-4DTY-25G6 Exploded View 7-5DTC-20T2 Exploded View 7-6DTC-21Y1 Exploded View 7-7DTZ-29U7 Exploded View 7-8DTZ-2881 Exploded View 7-9DTZ-2481 Printed Circuit Board 4859809893CP-520A 4859809993CP-520F Schematic Diagram CP-520A CP-520F

DTZ-2481, DTZ-29U7/U3, DTC-21Y1/21Y2, DTY-21U7/21B4, DTY-2880/28W5 specifications

The Daewoo DTC-20T2, DTY-28A8, DTY-28A6, DTY-28A7, DTZ-2881/28W8, DTY-25G6/25G7, and DTY-2880/28W5 represent a range of innovative and feature-rich vehicles that reflect Daewoo's commitment to quality and advanced technology. Each model combines sleek design with performance excellence, appealing to a wide range of consumers.

Starting with the DTC-20T2, this compact car offers a combination of efficiency and agility. Its lightweight design enhances fuel economy while maintaining stability on the road. Equipped with a state-of-the-art engine, the DTC-20T2 delivers a responsive drive, making it ideal for city commuting and weekend getaways.

The DTY-28A8 is known for its spacious interior and comfort features. It boasts advanced infotainment systems, including touch screens and smartphone connectivity, catering to modern drivers. Safety is paramount, with multiple airbags and advanced braking systems ensuring peace of mind on every journey.

Similarly, the DTY-28A6 and DTY-28A7 share many design elements but have unique enhancements that differentiate them. They incorporate advanced suspension systems that provide a smooth driving experience while navigating urban and rural landscapes. These models also feature high-efficiency engines that strike a balance between power and fuel consumption.

Moving to the DTZ-2881/28W8, this vehicle makes a statement with its bold design and robust performance. This model is designed with aerodynamics in mind, reducing drag and enhancing fuel efficiency. It includes innovative technologies like regenerative braking, which captures energy during deceleration, extending the vehicle's overall efficiency.

The DTY-25G6/25G7 and DTY-2880/28W5 are particularly impressive with their emphasis on versatility. These models offer various configurations and layouts to cater to different needs, whether for families or individuals. They feature expanded cargo capacity and modular seating arrangements that can accommodate both passenger and transportation requirements.

In conclusion, the Daewoo DTC-20T2, DTY-28A8, DTY-28A6, DTY-28A7, DTZ-2881/28W8, DTY-25G6/25G7, and DTY-2880/28W5 showcase a blend of performance, technology, and comfort across their varying models. From advanced safety features to innovative fuel efficiency technologies, these vehicles are tailored to meet the needs of a diverse clientele, reinforcing Daewoo’s stature in the automotive industry.
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