Daewoo DTC-21Y1/21Y2, DTZ-29U7/U3, DTZ-2881/28W8, DTY-21U7/21B4 Horizontal and vertical drive

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CP-520/520A/520F Service Manual

available on one of the other CVBS inputs.In this condition the connections between the vision IF amplifier and the synchronisation circuit can be switched on and off by means of the VDX bit. The VDXEN bit must be set to “1” for this mode.

The vertical synchronisation is realised by means of a divider circuit.

5.2.7 Horizontal and vertical drive

The horizontal drive is switched on and off via the soft start/stop procedure. The soft start function is realised by means of variation of the TON of the horizontal drive pulses. During the soft-stop period the horizontal output frequency is doubled resulting in a reduction of the EHT so that the picture tube capacitance can easily be discharged. In addition the horizontal drive circuit has a ‘low-power start-up’ function.

The vertical ramp generator needs an external resistor and capacitor. For the vertical drive a differential output current is available. The outputs must be DC coupled to the vertical output stage.

The IC has the following geometry control functions:

nVertical amplitude

nVertical slope

nS-correction

nVertical shift

nVertical zoom

nVertical scroll

nVertical linearity correction. When required the linearity setting for the upper and lower part of the screen can have a different setting.

nHorizontal shift

nEW width

nEW parabola width

nEW upper and lower corner parabola correction

nEW trapezium correction

nHorizontal parallelogram and bow correction.

When the East-West geometry function is not required (e.g. for 90 picture tubes) the EW output pin can be used for the connection of the AVL capacitor. This function is chosen by means of the AVLE bit.

5.2.8 Chroma, luminance and feature processing

Someversionscontaina4H/2H(2D)adaptivePAL/NTSC comb filter. The comb filter is automatically activated when standard CVBS signals are received.A signal is considered as “standard signal” when a PAL or NTSC signal is identified and when the vertical divider is in the modes ‘standard narrow window’ or ‘standard TV norm’.For non-standard signals and for SECAM signals the comb filter is bypassed and the signal is filtered by means of bandpass and trap filters.

The chroma band-pass and trap circuits (including the SECAM cloche filter) are realised by means of internal filters and are tuned to the right frequency by comparing the tuning frequency with the reference frequency of the colour decoder.

DTV R&D Europe

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Contents Color Television Chassis CP-520 TDA8358J Vertical Amplifier Contents Document History Main Features SpecificationsIC Description UOC III Series TDA8946J Stereo Audio AmplifierFunctional Description Sound Processor Schematic DiagramStereo and AV Stereo Versions Mono Versions ALL VersionsDocument History Version Date Comments General EURO-SCART 1 21 Pin Signal Description Matching valueEURO-SCART 2 21 Pin Pin Signal Description Matching valueChannel Europe Ccir France Gbireland East Oirt CHANNEL/FREQUENCY TableC49 C46C47 C48S21 S18S19 S20Safety Instruction RAY Radiation Precaution Safety PrecautionProduct Safety Notice HOR CEN RED Gain GRN Gain Blue Gain RED Bias GRN Bias Microcontroller Configuration Service ModeService Mode Navigation Order Default settingTuner Options Chassis Model OptionRemarks Exit NVM Editor mode Entering into Factory modeEntering into NVM Editor mode Navigation in NVM Editor modeNVM Data Change List Horizontal Picture Centring 1 G2 AlignmentWhite Balance Vertical Geometry7 AGC Corner B & Corner T EW TrapezCZECH, German DANISH, Spanish IC DescriptionIC Marking and Version BulgarianBlock Diagram Short Description QFP 128pinPBIN3 BlkinBclin GND3QSSO/AMOUT/AUDEE SIFAGC/DVBAGCPllif GND2Analogue video processing mono versions FeaturesAnalogue Video Processing all versions Analogue video processing stereo versionsAudio interfaces and switching mono versions Sound Demodulation all versionsStereo Demodulator and Decoder full stereo versions Audio Multi Channel Decoder stereo versions with Audio DSP RDS/RBDSController Data Capture DisplayTDA8946J Stereo Audio Amplifier Mode Pin Symbol DescriptionOUT1 OUT1+Block diagram TDA8946J 1 TDA8358J TDA8358J Vertical AmplifierInew INAINB OutbFeatures Pin descriptionGND Pin No Name Description General Description TJ TSD PIN Description Name SymbolOVP IIN HMosfet Electrical Characteristics IC PIN Rating Description Symbol MIN Type MAX UnitOCH F Circuit Description FM demodulator Functional Description of Video ProcessorVision if amplifier QSS sound circuitALL Versions Audio input selector and volume controStereo and AV Stereo Versions Mono VersionsSynchronisation circuit Horizontal and vertical drive Colour decoder RGB output circuit Wprgb Read registers 11 I2C-BUS User Interface DescriptionPossible slave address Write registersAnalog 2-CARRIER Systems Table Frequency modulation Other features of the Demdec areCarriersystemswithnicam ParameterA2/A2 A2+ KoreaFunctional Overview Of the digital controller sound part Introduction MixerFmandamdemodulation Nicamdemodulation FmidentificationFM/AMDECODING FmpilotcarrierpresentdetectorNicam 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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