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Haier HTAF29S Service Manual

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COLOUR TELEVISION

SERVICE MANUAL

Features
2
I
C BUS CONTROL
Auto search 181 program presetting and memory
ON-TIME,OFF-TIME
CCD & V-CHIP
SIDE AUDIO/VIDEO INPUT
Serial Number: 0010570608
Models
HTAF29S
Version:00.00
Edition: 2007-6-08

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  Summary of Contents for Haier HTAF29S

  • Page 1: Colour Television

    COLOUR TELEVISION SERVICE MANUAL Models HTAF29S Features C BUS CONTROL Auto search 181 program presetting and memory ON-TIME,OFF-TIME CCD & V-CHIP SIDE AUDIO/VIDEO INPUT Serial Number: 0010570608 Version:00.00 Edition: 2007-6-08...
  • Page 2: Table Of Contents

    CONTENTS safety precautions………………………………………………………………………………………3 block diagram and PHILIPS UOC functional difference between the various IC versions ………………….4 3. Replacement of memory IC……………………………………………………………………………7 4. Service adjustment……………………………………………………………………………………...7 5. ICs functional description………………………………………………………………………………11 6. Test point waveform………………………………………………………………………………….…15 7. All ICs/transistors voltages…………………………………………………………………………….16 8. Purity / convergence adjustment……………………………………………………………………..17 Circuit diagram……………………………………………………………………………………………19 10.
  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS 10. Isolation Check The design of this product contains special hardware, many (Safety for Electrical Shock Hazard) circuits and components specially for safety purposes. For continued protection, no changes should be made to the After re-assembling the product, always perform an isolation original design unless authorized in writing by the check on the exposed metal parts of the cabinet (antenna manufacturer.
  • Page 4: And Philips Uoc Functional Difference Between The Various Ic Versions

    2 TV Block diagram TDA93XX video TUNER IF IN Y IN RF AGC V IN 4052 video U IN video CVBSINT video S-VHS CHROMA IFVO OUT TRAP video CVBS/Y IN audio 24C04 ARi2 TDA9874 ARi1 AUDIO OUT RGB OUT XS303 TDA9859 V OUT H OUT...
  • Page 5: Block Diagram

    PHILIPS UOC FUNCTIONAL DIFFERENCE BETWEEN THE VARIOUS IC VERSIONS IC VERSION 9350 9351 9352 9353 9360 9361 9362 9363 9364 9365 9366 9367 9380 9381 9382 9383 9384 9385 9386 9387 9388 9389 9370 9373 9375 9377 9378 110 90 110 110 110 110 90 110 110 110 110 90 110 110...
  • Page 7: Replacement Of Memory Ic

    3.REPLACEMENT OF MEMORY IC 1. MEMORY IC. This TV uses memory IC. In the memory IC are memorized data for correctly operating the video and deflection circuits. When replacing memory IC, be sure to use IC written with the initial value of data. 2.
  • Page 8: Bus Control Adjustment

    BUS CONTROL ADJUSTMENT To enter BUS control mode, Press “TEST” key on the Remote control unit of factory. Press “0” to “9“ key, (Mkey) and corresponding on-screen display will be appeared. On TV screen “TEST” will be indicated, this means entered bus control mode. And press following key, each function will be available.
  • Page 9 ICs Default Settings 1. TDA9381(1.0) EK cord=NTDA9381-----NG Items Variable Preset Items Variable Preset ON/OFF SUBCON 0~63 ON/OFF SUBCOL 0~63 FMWS ON/OFF SUBSHP 0~63 ON/OFF SUBTINT 0~15 ON/OFF YDLY PAL 0~15 ON/OFF YDLY NTSC 0~15 WOOFER ON/OFF YDLY SEC 0~15 DUAL OUT YDLY AV 0~15 Volume mode...
  • Page 10 2. TDA9361(1.1) EK cord=NTDA9361-----NF Items Variable Preset Items Variable Preset ON/OFF SUBCON 0~63 ON/OFF SUBCOL 0~63 FMWS ON/OFF SUBSHP 0~63 ON/OFF SUBTINT 0~15 ON/OFF YDLY PAL 0~15 ON/OFF YDLY NTSC 0~15 WOOFER ON/OFF YDLY SEC 0~15 DUAL OUT YDLY AV 0~15 Volume mode UOC VOL...
  • Page 11: Ics Functional Description

    5. ICs functional description UOC OM8378 SYMBOL DESCRIPTION STAND BY output. In STAND BY mode, high level (Power OFF). For Power ON this pin will be reduced to low. C-bus clock line C-bus data line TUNING tuning Voltage (Vt) PWM output P3.0/NTSC SW Port 3.0 or NTSC output/SCART SW input, Forced NTSC selection, Low-level output, otherwise High output.
  • Page 12 PLL IF IF-PLL loop filter IFVO/SVO IF video output / selected CVBS output supply voltage TV processor CVBS INT internal CVBS input GND1 ground for TV processor CVBS/Y CVBS/Y input CHROMA C input AUDOUT/AMOUT *1 audio output /AM audio output (volume controlled) INSSW2 RGB / YUV insertion input R2/VIN...
  • Page 13 TABLE 1 IC version FM-PLL version QSS version East-West 01/10/11 01/10/11 01/10/11 01/10/11 CMB1/CMB0 bits bits Pin 20 Pin 28 AUDEEM SIFIN1 Pin 29 DECSDEM SIFIN2 Pin 31 SNDPLL SIFAGC Pin 32 SNDIF(1) REFO(2) AVL/SNDIF(1) REFO(2) AMOUT REFO(2) AMOUT REFO(2) Pin 35 AUDEXT AUDEXT...
  • Page 14 AN7522/7523 Function : audio output Symbol Function Symbol Function Power supply ground Out 1 (+) Ch 1 output (+) In 2 Ch 2 input GND(out 1) Ch 1Ground Volume Control Out 1 (-) Ch 1 output (-) Out 2 (-) Ch 2 output (-) Standby Mute input...
  • Page 15: Test Point Waveform

    6. Test point Waveforms 1.2Vpp 2.6Vpp 3.8Vpp 2.5Vpp 2.5Vpp TDA93XX PIN53 TDA93XX PIN52 TDA93XX PIN51 TDA93XX PIN38 TDA93XX PIN40 0.9Vpp 5Vpp 95Vpp 95Vpp 95Vpp TDA93XX PIN34 TDA93XX PIN33 CRT KR CRT KG CRT KB 1.3Vpp 0.8Vpp 1Vpp 2.7Vpp 1000Vpp V451 B V451 C TDA93XX PIN59 TDA93XX PIN21...
  • Page 16: All Ics/Transistors Voltages

    7. IC voltages TDA93XX LA76040 15.9 -0.07 AN 7522 TDA9859...
  • Page 17: Purity / Convergence Adjustment

    8. PURITY / CONVERGENCE ADJUSTMENT PURITY ADJUSTMENT WEDGE Demagnetize CRT with the demagnetizer. DEFLECTION YOKE Loosen the retainer screw of the deflection yoke. Remove the wedges. Input a green raster signal from the signal generator, and turn the screen to green raster. Move the deflection yoke backward.
  • Page 18 STATIC CONVERGENCE ADJUSTMENT 1. Input a crosshatch signal. 2. Using 4-pole convergence magnets, overlap the red and blue lines in the center of the screen (Fig. 1) and turn them to magenta (red/blue). (FRONT VIEW) 3. Using 6-pole convergence magnets, overlap the magenta (red/blue) and green lines in the center of the screen and turn them to white.
  • Page 21: Material List

    Sincere Forever...