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Haier DTA-1496, Руководство по обслуживанию

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CONTENTS 

1.  Safety  precautions

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3 

 

2.  TV  block  diagram

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3.  Replacement  of  memory  IC

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5 

 

4.  Service  adjustment

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...5 

 

5.  ICs  functional  description

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6.  Test  point  waveform

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7.  All ICs voltages

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8.  Purity    / convergence adjustment

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9.  DVD  maintenance

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Содержание DTA-1496

Страница 1: ...er model 13D204MR l FEATURES l DVD TV 14 COMBO l AUTO TUNE 218 CHANNES l DVD VCD SVCD CD CD R CD RW JPEG MP3 COMPATIBLE l FORMATO DE VIDEO 4 3PS 4 3LB l DOLBY AC 3 DECODE CAUTION READ THIS MANUAL CARE...

Страница 2: ...precautions 3 2 TV block diagram 4 3 Replacement of memory IC 5 4 Service adjustment 5 5 ICs functional description 8 6 Test point waveform 10 7 All ICs voltages 10 8 Purity convergence adjustment 11...

Страница 3: ...not check high voltage by drawing an arc Use a high voltage meter or a high voltage probe with a VTVM Discharge the picture tube before attempting meter connection by connecting a clip lead to the gro...

Страница 4: ...4 2 Block diagram TDA9351PS N2 series with mono intercarrier sound demodulator...

Страница 5: ...ustment of corresponding factory menus Press EXIT key to exit factory mode Focus adjustment 1 Receive a crosshatch signal 2 While watching the screen adjust the FOCUS VR on the FBT to make the vertica...

Страница 6: ...0 A 0BRI Listen Brightness 0 A 0COL Listen Colour 50 A 0SHP Listen Sharpness 50 A 1CON Soft Contrast 45 A 1BRI Soft Brightness 45 A 1COL Soft Colour 50 A 1SHP Soft Sharpness 50 A 6 Picture preset 2 2...

Страница 7: ...n Description Preset Remark Bit 6 HALFTONE 1 Enable 1 EA Bit 5 IDENT_SENSITIVE 1 EA Bit 4 HCO 1 Enable 0 EA Bit 3 LOGO 1 EA Bit 2 TILT 0 EA Bit 1 SPANISH 1 EA Bit 0 ROMANIA 0 EA 5 OP5 Bit Function Des...

Страница 8: ...DESCRIPTION STAND BY output 1 In STAND BY mode low level Power OFF For Power ON this pin will be high SCL 2 I2 C bus clock line SDA 3 I2 C bus data line TUNING 4 tuning Voltage Vt PWM output KEY 5 Co...

Страница 9: ...B input U B Y input PB input BCLIN 49 Beam current limiter input BLKIN 50 Black current input RO 51 Red output GO 52 Green output BO 53 Blue output VDDA 54 Analog supply of Closed Caption decoder and...

Страница 10: ...t V FEEDBACK 9 Vertical feedback GND 5 Ground 5 U101 Tuner PIN Function PIN Function 1 AGC 7 5V 2 vacant 8 vacant 3 Gnd 9 Vt 33V 4 SCL 10 Gnd 5 SDA 11 IF Out 6 5V 6 Test point Waveforms 7 IC voltages...

Страница 11: ...38 39 40 41 42 43 44 45 46 47 48 V 0 5 0 3 0 1 7 2 4 3 4 8 3 9 0 3 3 0 3 6 1 4 2 5 2 5 2 5 PIN 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 V 1 9 5 0 2 4 2 4 2 4 3 1 0 3 2 0 1 8 1 7 0 3 2 5 1 3 3 5...

Страница 12: ...he screen Fig 3 8 Move the deflection yoke forward and fix the position of the deflection yoke so that the whole screen will become green 9 Insert the wedge to the top side of the deflection yoke so t...

Страница 13: ...convergence DYNAMIC CONVERGENCE ADJUSTMENT 1 Move the deflection yoke up and down and overlap lines in the periphery Fig 2 2 Move the deflection yoke left to right and overlap the lines in the periph...

Страница 14: ...nding pins of MT1389D to see if there is any short circuit break or faulty soldering 4 System in normal operation but the audio has no sound 1 Because the AUDIO DAC is built in MTK1389D IC you need to...

Страница 15: ...1 IF 10 8 3 1 5 4 6 7 2 TU101 ENV56DB4G3 16V 10 F C107 104 C202 C201 10u KA33V DZ201 A1 33V D2901C SF101 MTZJ9 1B DZ101 16V 47 F C108 BF370 V101 1 6W 10 R104 1 6W 13K R105 1 6W 470 R106 25V 220 F C102...

Страница 16: ...15 Sincere Forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China http www haier com...

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