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SERVICE MANUAL

Colour Television

Haier model:1407
Customer model: HTAR14
CAUTION
THIS MANUAL CAREFULLY TO DIAGNOSE
TROUBLE CORRECTLY BEFORE OFFERING
SERVICE .
READ

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   Summary of Contents for Haier 1407

  • Page 1: Service Manual

    CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE CORRECTLY BEFORE OFFERING SERVICE . SERVICE MANUAL Colour Television Haier model:1407 Customer model: HTAR14...

  • Page 2: Table Of Contents

    CONTENTS Safety precautions……………………………………………………………..……………3 TV block diagram……………………………………………………………………..…….4 Replacement of memory IC………………………………………………………….……5 Service adjustment……………………………………………………………..…………...5 ICs functional description…………………………………………………………………8 Test point waveform………………………………………………………………………10 All ICs voltages……………………………..……………………………………………….10 Purity / convergence adjustment………………………………………………………12 CIRCUIT DIAGRAM…………………………………………………………………Attached 10. WIRING CONNECTION DIAGRAM………………………………………………Attached...

  • Page 3: Safety Precautions

    1. SAFETY PRECAUTIONS The design of this product contains special hardware, many Isolation Check circuits and components especially for safety purposes. For (Safety for Electrical Shock Hazard) 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: Tv Block Diagram

    Block diagram TDA11115HPS/N2 series with mono intercarrier sound demodulator...

  • Page 5: 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. 2. PROCEDURE FOR REPLACING MEMORY IC (1) Power off Switch the power off and unplug the power cord from AC outlet. (2) Replace IC Be sure to use memory IC written with the initial data values.

  • Page 6

    Direct access key Items Description Preset Remark “1” 6HSH/5HSH Horizontal shift 0~63 VG2 Brightness “2” 5/6VSL Vertical slop 5/6VAM Vertical amplitude 5/6SCL S-correction 5/6VSH Vertical shift 5/6VOF OSD Vertical offset HOF* OSD Horizontal offset “3” BLOC RED/RED Black level offset R GRN/GRN Black level offset G BLU/BLU...

  • Page 7

    Function Description Preset Remark Bit 7 RUSSIA 1=Enable Bit 6 ITALY 1=Enable Bit 5 GERMANY 1=Enable Bit 4 FRANCE 1=Enable Bit 3 RUTKISH 1=Enable Bit 2 ARABIC 1=Enable Bit 1 FARSI 1=Enable Bit 0 ENGLISH 1=Enable 4. OP4 Function Description Preset Remark AGCT...

  • Page 8: Ics Functional Description

    7. OP7 Function Description Preset Remark 1=Enable 1=Enable BLUESCREEN FADE 1=Enable 1=Enable SVHS 1=Enable 1=Enable 8. OP8 Function Description Preset Remark 1=Enable INIT LOGOYEND 1=Enable Note:Don’t adjust any OPTION items, please inform the engineer about any change. 5. ICs functional description 1.

  • Page 9

    VDRA Vertical drive A output IFIN1 IF input 1 IFIN2 IF input 2 IREF Reference current input Vertical sawtooth capacitor TUNER AGC Tuner AGC output AUDEEM/SIFIN1 *1 Audio deemphasize or SIF input DECSDEM/SIFIN2 Decoupling sound demodulator GND2 Ground 2 for TV processor SNDPLL/SIFAGC *1 Narrow band PLL filter Automatic Volume Levelling...

  • Page 10: Test Point Waveform

    GND(out 1) Ch 1Ground Volume Control Out 1 (-) Ch 1 output (-) Out 2 (-) Ch 2 output (-) Standby Mute input GND(out 2) Ch 2 Ground In 1 Ch 1 input Out 2 (+) Ch 2 output (+) 4.

  • Page 11

    7. IC voltages TDA11115H 0.18 0.17 TDA4864 TDA1517 2.75 0.35 24C08/PCF8598...

  • Page 12: 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 13

    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 14

    X105 V0.31 Video CP101 PROG+ PROG- VOL+ VOL- Menu AV/TV D101 SW107 SW106 SW105 SW104 SW103 SW102 +5Vstb R108 R107 R106 R105 R102 1.8K 1.2K R101 C101 3.3K 10uF/16V +3.3Vstb R705 R712 S101 S105 IR-KEY Front AV S701 X301 R711 V707 RGB.AMP CON-05...

  • Page 15

    POWER AV PCB BAND Cord Specification Location...

  • Page 16

    Sincere Forever...

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