JVC AV-28EH1SUG Скачать руководство пользователя страница 13 | Manualshive

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(No.52172)

AV & MULTIMEDIA COMPANY VIDEO DISPLAY CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan

VICTOR COMPANY OF JAPAN, LIMITED

WPC

Printed in Japan

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Содержание AV-28EH1SUG

Страница 1: ... 2003 VICTOR COMPANY OF JAPAN LIMITED No 52172 2003 7 COLOUR TELEVISION 52172 2003 7 AV 28EH1SUG TABLE OF CONTENTS 1 PRECAUTION 1 3 2 SPECIFIC SERVICE INSTRUCTIONS 1 4 3 DISASSEMBLY 1 5 4 ADJUSTMENT 1 8 5 TROUBLE SHOOTING 1 12 ...

Страница 2: ...ncy VIF Carrier 38 9MHz B G D K I L 33 95MHz L SIF Carrier 33 4MHz 5 5MHz B G 32 9MHz 6 0MHz I 32 4MHz 6 5MHz L D K 40 45MHz 6 5MHz L Colour Sub Carrier Frequency PAL 4 43MHz SECAM 4 40625MHz 4 25MHz NTSC 3 58MHz 4 43MHz Power Input AC220V AC240V 50Hz Power Consumption 74W standby 3W Aerial Input Terminal 75Ω unbalanced coaxial Picture Tube Visible size 66cm Measured diagonally Audio Power Output ...

Страница 3: ...ments or alternatives approved by the manufacturer of the complete product 7 Do 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 ground frame and connecting the other end of the lead through a 10kΩ 2W resistor to the anode button 8 When service is requ...

Страница 4: ...V rms Nominal High impedance Used L1 Used L2 7 B input 700mV B W 75 Ω Used NC 8 FUNCTION SW SLOW SW Low 0V 3V High 8V 12V High impedance Used NC 9 GND G Used NC 10 SCL T V LINK Not used NC 11 G input 700mV B W 75 Ω Used NC 12 SDA Not used NC 13 GND R Used Used 14 GND YS Used Used 15 R C input R 700mV B W 75 Ω C 300mV P P 75 Ω Used R Used C 16 Ys input FAST SW Low 0V 0 4V High 1V 3V 75 Ω Used NC 17...

Страница 5: ...eck the back side of the PW Board 1 Pull out the CHASSIS Refer to REMOVING THE CHASSIS 2 Erect the CHASSIS vertically so that you can easily check the back side of the PW Board CAUTION When erecting the CHASSIS be careful so that there will be no contacting with other PW Board Before turning on power make sure that the wire connector is properly connected When conducting a check with power supplie...

Страница 6: ...TTING AND INITIAL SEETING 3 2 3 2 USER MENU SETTING No Adjustment item Initial data 1 HOR CEN 00144 2 RED GAIN 00380 3 GRN GAIN 00360 4 BLUE GAIN 00380 5 RED BIAS 00256 6 GRN BIAS 00256 7 AGC LEVEL 00035 8 G2 SCREEN 00032 9 AFT 00032 10 OPTION 1 0011 1100 11 OPTION 2 0100 0010 12 AVL OFF 13 PARABOLA 00250 14 HOR WIDTH 00093 15 CORNER T 00053 16 CORNER B 00043 17 HOR PARAL 00001 18 V LINEAR 00005 1...

Страница 7: ...he tweezers and remove the chip part Transistors diodes variable resistors etc 1 Apply extra solder to each lead 2 As shown in the figure push the part with tweezers and alternately melt the solder at each lead Shift and remove the chip part NOTE After removing the part remove remaining solder from the pattern 2 How to install Chip parts Resistors capacitors etc 1 Apply solder to the pattern as in...

Страница 8: ...ROL UNIT 4 3 2 SERVICE MENU ITEMS There are 21 adjustment items 4 3 3 HOW TO ENTER SERVICE MENU 1 Press i Information key and Muting key same time then enter SERVICE MENU 2 Adjust sharpness to minimum and exit all menus 3 Within 2 seconds press the key sequence RED GREEN MENU key 4 3 4 SELECTION OF MENU SCREEN 1 Press keys of the REMOTE CONTROL UNIT and select adjustment item 4 3 5 SETTING VALUE O...

Страница 9: ...AFT 4 Adjust the adjustment coil L150 to bring the cursor to central poison Item Measuring instrument Test point Adjustment part Description AGC adjustment Signal generator Remote control unit AGC 1 Receive a colour bar pattern signal 2 Select AGC 3 Press the OK key and wait until AGC level stabilize to the optimum value Item Measuring instrument Test point Adjustment part Description FOCUS adjust...

Страница 10: ...ct RED BIAS GRN BIAS and adjust the screen until the black portion in the screen becomes black 3 Select RED GAIN GRN GAIN BLUE GAIN and adjust the screen until the white portion in the screen become white Item Measuring instrument Test point Adjustment part Description VERTICAL GEOMETORY adjustment Signal generator Remote control unit V LINEAR S CORRECT VERT SIZE VERT CENT 1 Receive a circle patte...

Страница 11: ...e a cross hatch pattern signal 2 Select PALABOLA Parabola HOR WIDTH Horizontal width CORNER Top bottom cor ner HOR PARAL Horizontal parallel EW TRAPEZ East west trapezium 3 Adjust these items to compensate for geometrical distortion Item Measuring instrument Test point Adjustment part Description PARABOLA HOR WIDTH CORNER HOR PARAL EW TRAPEZ ...

Страница 12: ...1 12 No 52172 SECTION 5 TROUBLE SHOOTING This service manual does not describe TROUBLE SHOOTING ...

Страница 13: ... No 52172 AV MULTIMEDIA COMPANY VIDEO DISPLAY CATEGORY 12 3 chome Moriya cho kanagawa ku Yokohama kanagawa prefecture 221 8528 Japan VICTOR COMPANY OF JAPAN LIMITED WPC Printed in Japan ...

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