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Daewoo DTC-21Y2 User Manual

Daewoo DTC-21Y2
85 pages
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http : //svc.dwe.co.kr
Caution
: In this Manual, some parts can be changed for improving. their
performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List)in
Service Information Center(http://svc.dwe.co.kr)
DAEWOO ELECTRONICS Corp.
Service Manual
June. 2004
COLOR TELEVISION
CHASSIS : CP-520
MODEL : DTY-28A8/28A6/28A7
DTY-2880/28W5
DTY-21U7/21B4
DTY-25G6/25G7
CHASSIS : CP-520A
MODEL : DTC-20T2
DTC-21Y1/21Y2
CHASSIS : CP-520F
MODEL : DTZ-29U7/U3
DTZ-2881/28W8
DTZ-2481
P/N:TCP520BEF0

Table of Contents

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Daewoo DTC-21Y2 Specifications

General IconGeneral
BrandDaewoo
ModelDTC-21Y2
CategoryTV
LanguageEnglish

Summary

MAIN FEATURES

SPECIFICATIONS

Detailed technical specifications for the television models.

GENERAL

General specifications including TV standard, color system, and power.

EURO-SCART 1 (21 Pin)

Pin description and matching values for the EURO-SCART 1 connector.

EURO-SCART 2 (21 Pin)

Pin description and matching values for the EURO-SCART 2 connector.

CHANNEL/FREQUENCY TABLE

Table listing channel numbers and their corresponding frequencies for different regions.

SAFETY INSTRUCTION

X-RAY RADIATION PRECAUTION

Precautions regarding hazardous X-RAY RADIATION and high voltage.

SAFETY PRECAUTION

General safety warnings related to high voltage and servicing procedures.

PRODUCT SAFETY NOTICE

Notice regarding special safety-related characteristics of replacement parts.

ALIGNMENT INSTRUCTIONS

MICROCONTROLLER CONFIGURATION : SERVICE MODE

Instructions for entering and navigating the TV's service mode.

SERVICE MODE NAVIGATION

Details on how to navigate through service mode items and adjust values.

MICROCONTROLLER CONFIGURATION : OPTION BITS

Explanation of how to configure option bits for various model features.

NVM DEFAULT SETTING

Procedure for editing NVM (Non-Volatile Memory) data in service mode.

TV SET ALIGNMENT

Detailed procedures for aligning various picture parameters.

G2 ALIGNMENT

Procedure for adjusting the G2 (screen) voltage for optimal picture.

WHITE BALANCE

Procedure for adjusting color temperature via bias and gain controls.

FOCUS

Procedure for adjusting picture focus for best resolution.

VERTICAL GEOMETRY

Adjusting vertical linearity, slope, size, and centring.

HORIZONTAL PICTURE CENTRING

Procedure for centering the picture horizontally on the screen.

EAST / WEST CORRECTION

Adjusting parameters for geometrical distortion correction (East/West).

AGC

Procedure for setting the Automatic Gain Control (AGC) level.

IC DESCRIPTION

UOC Series

Description of the UOC III series Video Signal Processor and its features.

IC MARKING AND VERSION

Table showing IC markings, OSD languages, and ATSS countries.

BLOCK DIAGRAM

Block diagram illustrating the main functional blocks of the TV processor.

PINNING

Detailed pin description for the 128-pin QFP package.

FEATURES

List of features for the analogue video processing system.

TDA8946J STEREO AUDIO AMPLIFIER

Description of the TDA8946J stereo audio amplifier IC.

FEATURES

Key features of the TDA8946J audio amplifier.

TDA8358J VERTICAL AMPLIFIER

Description of the TDA8358J vertical deflection amplifier IC.

TDA8358J

Features of the TDA8358J IC, including its output stages.

TDA6107AJF

Description of the TDA6107AJF video output amplifier.

Features

Key features of the TDA6107AJF video output amplifier.

Pin description

Pinout and description for the TDA6107AJF IC.

24WC16 - 16 KB EEPROM

Description of the 24WC16 serial I2C bus EEPROM.

STR - F6653

Description of the STR-F6653 flyback converter power supply IC.

GENERAL DESCRIPTION

General description of the STR-F6653 hybrid IC.

FEATURES

Features of the STR-F6653, including protection functions.

BLOCK DIAGRAM

Block diagram of the STR-F6653 power supply IC.

PIN DESCRIPTION

Pin description for the STR-F6653 IC.

CONTROL PART - ELECTRICAL CHARACTERISTICS

Electrical characteristics for the control part of the STR-F6653.

MOSFET ELECTRICAL CHARACTERISTICS

Electrical characteristics of the MOSFET within the STR-F6653.

CIRCUIT DESCRIPTION

BLOCK DIAGRAM

Overall block diagram of the TV's functional units.

FUNCTIONAL DESCRIPTION OF VIDEO PROCESSOR

Functional description of the video processor section.

Vision IF amplifier

Description of the vision IF amplifier's demodulation capabilities.

QSS sound circuit

Description of the Quasi Split Sound (QSS) circuit.

FM demodulator

Description of the FM demodulator using PLL technology.

Audio input selector and volume contro

Description of audio input selection and volume control circuits.

STEREO AND AV STEREO VERSIONS

Audio input/output details for stereo and AV stereo versions.

MONO VERSIONS

Audio input/output details for mono versions.

CVBS and Y/C input signal selection

Description of CVBS and Y/C signal input selection.

ALL VERSIONS

Signal selection for all versions of the television.

Synchronisation circuit

Description of the horizontal and vertical synchronization circuits.

Horizontal and vertical drive

Details on horizontal and vertical drive circuits and geometry control.

Chroma, luminance and feature processing

Description of chroma, luminance, and picture improvement features.

Colour decoder

Description of PAL, NTSC, and SECAM colour decoding.

RGB output circuit

Description of the RGB output circuit and cathode calibration.

I2C-BUS USER INTERFACE DESCRIPTION

Description of the I2C-bus interface for controlling the UOC III processor.

GENERAL DESCRIPTION OF THE TV SOUND OF SOUND PROCESSOR

General overview of the digital TV sound processor.

Supported standards

Supported terrestrial TV sound standards, FM Radio, and satellite FM.

FUNCTIONAL DESCRIPTION SOUND PROCESSOR

Functional description of the sound processor.

The UOC III TV Sound Concept

Description of the UOC III sound concept.

Functional Overview Of the digital controller sound part

Overview of the digital controller's sound processing components.

Demodulator and decoder

Description of sound demodulator and decoder functionalities.

SERVICE PARTS LIST

DTY--28A8FZF-S

Service parts list for the DTY-28A8FZF-S model.

DTC-20T2FZS-S

Service parts list for the DTC-20T2FZS-S model.

DTC-21Y1FZF-S

Service parts list for the DTC-21Y1FZF-S model.

DTZ-29U7FZS-S

Service parts list for the DTZ-29U7FZS-S model.

Exploded View

DTY-28A8

Exploded view diagram for the DTY-28A8 television model.

DTY-2880

Exploded view diagram for the DTY-2880 television model.

DTY-21U7

Exploded view diagram for the DTY-21U7 television model.

DTC-20T2

Exploded view diagram for the DTC-20T2 television model.

DTC-21Y1

Exploded view diagram for the DTC-21Y1 television model.

DTZ-29U7

Exploded view diagram for the DTZ-29U7 television model.

DTZ-2881

Exploded view diagram for the DTZ-2881 television model.

DTZ-2481

Exploded view diagram for the DTZ-2481 television model.

Printed Circuit Board

4859809693(CP-520)

Printed circuit board layout for the CP-520 model.

4859809893(CP-520A)

Printed circuit board layout for the CP-520A model.

4859809993(CP-520F)

Printed circuit board layout for the CP-520F model.

Schematic Diagram

CP-520

Schematic diagram for the CP-520 television.

CP-520A

Schematic diagram for the CP-520A television.

CP-520F

Schematic diagram for the CP-520F television.

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