Daewoo DTR Series Specifikace

Colour Television CHASSIS : CP-490MODEL : DTR-14D3VGDTR-14D3TMDTR-16D3VGDTR-20D3VGDTR-20D3TMDTR-21D3TMWDTR-21D3VGWDTR-21D3TGWDAEWOO ELECTRONICS CO., L

8(3) Block Diagram

1 P40 P47/PWM10 422 P20 P46/PWM9 413 P21 F BLANK 404 P22 B 395 P23 G 386 P24(SCLØ) R 377 P25(SDAØ) V-SYNC 368 P26(SCL1) H-SYNC 359 P27(SDA1) P63 3410

10DW5255MBI(TVTEXT 8-bit Micro controller, Rom-version)=SDA5254 (SIEMENS Type No.)(1) General DescriptionThe SDA 525x contains a slicer for TTX, VPS a

11• Microcontroller- 8 bit C500-CPU (8051 compatible)- 18 MHz internal clock- 0.33 µs instruction cycle- Eight 16-bit data pointer registers (DPTR)- T

12(4) Pin Configuration P-SDIP-52-1 (ROM-Versions)Pin Configuration P-SDIP-52-1 (ROM-Versions)(top view)

24LC08B (EEPROM)(1) Features(2) General DescriptionThe Microchip Technology Inc. 24LC08B is a 8K-bit Electrically Erasable PROM.The device is organize

14TDA884X ( One Chip TV-processor ) (1) General DescriptionThe TDA884X family is a pin-aligned range of single chip video and audio processors.With th

15- All automatic controls have an option for forced mode. • Power consumption- Low power consumption.• Packaging- SDIP-56 (Shrinked Dual In Line Pack

16(4) Pin DescriptionNo Name Description1 SOUND IF INPUT The sound equivalent input impedance is 8k5 ohm // 5pF which has to betaken into account for

17No Name Description Power-up : If the 8V increases >6.8V then; (after IC-initialization and auto re-calibration)Hout starts at 2fHHout continues

CONTENTS Specifications ... 1Safety Instruction ...

18No Name Description27 LUMINANCE in, The Luminance out, B-Y / R-Y out signals from the output pins from the device itself or 31 B-Y / R-Y in from Y

19No Name Descriptionblanking pulse is only present when the external flyback pulse is fed to this pin.The lineflyback pulse, fed to this pin is used

20No Name Description46 VERT DRIVE + The vertical drive has a current output. The output is balanced which ensures 47 VERT DRIVE - a good common mod

21TDA6106Q ( Video Output Amplifier )(1) General DescriptionThe TDA6106Q is a monolithic video output amplifier (5MHz bandwidth) in a SIL 9 MPpackage,

22I804 PC817(1) General DescriptionThe specification applies to the structures and characteristics of Model No. PC817(2) Block Diagram(3) Absolute max

23TDA8356 (DC-coupled vertical deflection circuit)(1) General DescriptionThe TDA8356 is power circuit for use in 90 and 110 color deflection systems f

24TA8218AH (AUDIO IC AMP) : 3 SPEAKER MODEL (CONTAINS WOOFER)(1) General DescriptionThe TA8218AH is 3 channel audio amplifier for consumer application

25Unless otherise specified, Vcc = 20V, RL= 8Ω, Rg = 600Ω, f = 1 KHz, Ta = 25˚CCHARACTERISTIC SYMBOLTEST CIRCUITTEST CONDITION MIN. TYP.L MAX. UNITQu

26UPC1406HA(Audio output Amplifier)(1) Feature• Each attenuator is completely separate and is very easy to control with remote control (e.g Volume, Ba

27KA4558H/A/I(1) General DescriptionThe KA4558 series is a monolithic integrated circuit designed for dual operational amplifier.(2) Features• No freq

1SpecificationsTV Standard PAL/SECAM-B/G, D/K, I, H, NTSC-3.58/4.43 Mains Voltage 100~250V AC, 50/60HzPower Consumption 14”

28(5) ABSOLUTE MAXIMUM RATINGS(6) ELECTRICAL CHARACTERISTICS(Vcc=15V, VEE=-15V, Ta=25˚C, unless otherwise specified)CHARACYERISTIC SYMBOL RATING UNITS

29STR-S6708 (Hybrid IC for a Switching Regulator) (1) General DescriptionThe STR-S6708 is a Hybrid IC with a built in power transistor and a separate

30RatingDescription Terminal Symbol UnitMin. Typ. Max.On-State Voltage 9-2 VIN(ON) 7.6 8 8.4 VOff-State Voltage 9-2 VIN(OFF) 4.6 4.9 5.2 VOperating Ci

31PCA84C 122A(IC REMOCON)(1) Features• ROM, RAM and I/O is device dependent• Two test inputs T0, T1• 3 Single-level vectored interrupt sources• 8 bit

32Vision IF amplifier, AFC, video demodulator The IF signal from the tuner is fed through a SAW filter to the differential IF input (pin 48 and 49). T

33SoundThe main functions are :- Limiter- PLL-Demodulator- Pre-amplifier and mute- Audio switch- Volume controlled amplifier

34The charge (or attack) current is 1mA, the discharge (or decay) current is 200nA. This equals a current ratio of 5000. The time constant is defined

35The PHI-2 circuit shifts the horizontal drive, pin 40, such that the picture position on screen is constant.The flyback input pin 41 is combined wit

36• Coincidence detector (Synchronization Lock SL)The coincidence detector detects whether the incoming CVBS signal is synchronized with the horizonta

373. Standard TV-norm : divider ratio 525(60Hz) or 625(50Hz)When the system is switched to the narrow window (standard mode) it is checked whether the

2Safety InstructionWARNING: Before servicing this chassis, read the “X-RAY RADIATION precaution”, “safety precaution”and “product safety notice” below

38• EHT tracking + overvoltage protectionBoth the vertical and the E-W drive can be modulated for EHT compensation.This tracking makes the picture siz

39• Luminance signal processingFor luminance processing, the selected video signal is supplied to the H/V sync circuits for sync processing and alsoto

40• PAL/NTSC demodulationThe 0˚ and 90˚ reference signals from the VCXO are supplied to the HUE phase rotator; it’s outputs (H0, H90) aresupplied to t

41RGB processing and controlThis paragraph can be divided into :- YUV/RGB processing- RGB-control(1) YUV/RGB processing• The main functions are :- Y-s

42RGB signal selection has three modes to choose from:- RGB (composite)- fast RGB insertion (R1ING1INB1IN)- OSD modeBefore the RGB signal selection th

43For fast insertion on RIN, GIN, BINinputs then brightness, contrast and white point RGB is possibleRGB output illustration during OSD modeDuring OSD

44• Continuous Cathode Calibration (CCC)The Continuous Cathode Calibration (CCC) loop (or two point stabilisation loop) is an auto-tuning loop whichst

45Power Supply STR-S6708(1) VINterminal, start-up circuitAstart-up circuit is to start and stop a operation of a control IC by detectiong a voltage ap

46(5) Stand-By ModeWhen going into light load mode such as remote control standby mode, internal impedance at a signal terminal of amicrocomputer gets

47(7) OCP (overcurrent protection) functionOvercurrent protection is performed pulse by pulse by directlydetecting collector current of the power tran

3Circuit Block Diagram

48Trouble Shooting Charts1. NO RASTERCHECK MAIN B+(+124V/+110V) LINENORMALNORMALNORMALABNORMALABNORMALABNORMALABNORMALABNORMALABNORMALABNORMALABNORMAL

492. NO PICTURE(RASTER OK)CHECK VIDEO SIGNAL AT PIN 13 OF I501(TDA8842)[REFER TO WAVEFORM ¤Ø]NORMALNORMALNORMALNORMALNORMALNORMALNORMALNORMALNORMALABN

503. NO VERTICAL SCANING(ONE HORIZONTAL LINE ON SCREEN)CHECK / REPLACEP401 & DY ¤Ø]CHECK VERTICAL Vcc +16.5V AT PIN3 & +48V AT PIN6 OF I301(TD

4. NO COLOR51CHECK VIDEO SIGNALAT PIN13 OF I501(TDA8842)[REFER TO WAVEFORM ¤Ø]CHECK SYSTEM MODEAUTO¤APAL¤ASECAM ¤AN3¤AN4¤AN5CHECK SIGNAL AT PIN29, PIN

525. NO SOUND(PICTURE OK)CHECK AUDIO SIGNALAT PIN15 OF I501CHECK MUTE VOLTAGEAT PIN20 OF I701*MUTE : HIGHCHECK SIF SIGNALAT PIN1 OF I501CHECK / REPLAC

536. NO EXTERNAL A/V(RF OK)7. NO ON-SCREEN DISPLAY(PICTURE OK)CHECK EXTERNAL AUDIO SIGNALAT PIN4, 5, 11, 14 OF I604 / VIDEO SIGNALAT PIN 11, 17 OF I50

548. REMOTE CONTROL UNIT TROUBLE(LOCAL CONTROL OK)CHECK PULSE AT COLLECTOR OF Q1(TRANSMITTER BOARD)CHECK / REPLACEQ1 / LED1(TRANSMITTER BOARD)CHECK IC

ZZ100 48B3228B03 TRANSMITTER REMOCON R-28B03ZZ110 PTACPWD146 ACCESSORY AS DTR-21D3TMW00100 47P7500001 BATTERY AAM 1.5V10000 48586A1617 MANUAL INSTRUCT

56C635 CEXF1H478V C ELECTRO 50V RSS 0.47MF (5X11) TPC636 CEXF1H478V C ELECTRO 50V RSS 0.47MF (5X11) TPC638 CEXF1H100V C ELECTRO 50V RSS 10MF (5X11) TP

57D633 DMTZJ6R8B- DIODE ZENER MTZJ 6.8B (TAPPING)D634 DMTZJ5R6B- DIODE ZENER MTZJ 5.6B (TAPPING)D635 DUZ9R1BM— DIODE ZENER UZ-9.1BM 9.1VD636 DUZ9R1BM—

41. AFT1.1 Standard B/G,D/K,I 1) Set a Signal Generator with- RF FREQUENCY = 38.9 MHz,- RF OUTPUT LEVEL = 80 5 dBuV- System = PAL / SECAM - B/G, D/K,

58Q631 TKTC3198Y- TR KTC3198YQ632 TKTC3198Y- TR KTC3198YQ633 TKTC3198Y- TR KTC3198YQ635 TKTC3198Y- TR KTC3198YQ640 TKTC3198Y- TR KTC3198YQ641 TKTC3198

59R619 RD-AZ472J- R CARBON FILM 1/6 4.7K OHM JR623 RD-AZ562J- R CARBON FILM 1/6 5.6K OHM JR624 RD-AZ103J- R CARBON FILM 1/6 10K OHM JR631 RD-AZ224J- R

60R803 RX10B109JN R CEMENT 10W 1 OHM J BENCH 4PR804 RS02Z153J- R M-OXIDE FILM 2W 15K OHM J (TAPPING)R805 RS02Z153J- R M-OXIDE FILM 2W 15K OHM J (TAPPI

No LOC. PART NAME DTR-14D3VG DTR-14D3TM DTR-20D3VG DTR-20D3TM DTR-21D3VG DTR-21D3TM DTR-21D3VGM DTR-21D3TMW611 C722 C CERA 50V B 120PF K 50V SL 39PF J

62No LOC. PART NAME DTR-14D3VG DTR-14D3TM DTR-20D3VG DTR-20D3TM DTR-21D3VG DTR-21D3TM DTR-21D3VGM DTR-21D3TMW14 R783 R CARBONFILM 1/6 10K OHM J NONE 1

No LOC. PART NAME DTR-14D3VG DTR-14D3TM DTR-20D3VG DTR-20D3TM DTR-21D3VG DTR-21D3TM DTR-21D3VGM DTR-21D3TMW6327 P602 CONNWAFER YW025-03(STICK) NONE NO

64 1. 14D3Mechanical Exploded View

65 2. 20D3

66 3. 21D3

67 4. 16D3

56. GEOMETRY6.1 VERTICAL CENTER1) Set the TV to NOR I mode. 2) Pressing the V-SIZE UP/DOWN KEY, the lower half of the screen is blanked.3) Adjust the

67 Printed Circuit Boards

Circuit SchematicsCP-490 SCHEMATIC DIAGRAM

ENGINEER NOTE

DAEWOO ELECTRONICS CO., LTD.686, AHYEON-DONG, MAPO-GU,SEOUL, KOREA.C.P.O. BOX 8003 SEOUL KOREATELEX : DWELEC K28177-8T E L : 82-2-360-8179F A X : 82-2

6If EEPROM(I702) has been changed ;- Option data has to be changed and- all alignment function has to be readjusted.The initial state of adjustment ar

7IC Description DW90244-AS/(Z8 DIGITAL TELEVISION CONTROLLER)= Z9024106PSC (ZILOG TYPE NO.)(1) General DescriptionThe Z9023X Digital Television Contro