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JVC InteriArt AV-21VT16/P Service Manual

Jvc flat color television service manual
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SERVICE MANUAL
10
2006
YA453
COLOR
CLOSED
CAPTION
VNR
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30
FLAT COLOR TELEVISION
AV-21VT16
EXIT
100+
ECO
CINEMA
BASS
SURROUND
RM-C1287

TABLE OF CONTENTS

COPYRIGHT © 2006 Victor Company of Japan, Limited
/P
BASIC CHASSIS
CW3
No.YA453
2006/10

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Summary of Contents for JVC InteriArt AV-21VT16/P

  • Page 1: Table Of Contents

    SERVICE MANUAL FLAT COLOR TELEVISION YA453 2006 AV-21VT16 BASIC CHASSIS COLOR EXIT CLOSED CAPTION 100+ CINEMA BASS SURROUND RM-C1287 TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 SPECIFICATION Items Contents Dimensions (W × H × D) 64.9 cm × 46.5 cm × 47.4 cm Mass 23 kg TV RF System COLOR System PAL / SECAM / NTSC 3.58 / NTSC 4.43 Stereo System Teletext System Closed caption Receiving VHF Low 55.25MHz - 127.25MHz (CH.2 - CB.B) Frequency...

  • Page 3: Precaution

    SECTION 1 PRECAUTION SAFETY PRECAUTIONS (1) The design of this product contains special hardware, (8) When service is required, observe the original lead dress. many circuits and components specially for safety Extra precaution should be given to assure correct lead purposes.

  • Page 4: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS FEATURES DVD PICTURE MODE RETURN + This function can enhance the picture quality of DVD. The This function can set a channel frequently view to the Return screen can be made sharp or soft by this setting. Channel and you can view that channel at any time with one- touch.
  • Page 5 TECHNINAL INFORMATION 2.2.1 MAIN MI-COM (CPU) PIN FUNCTION Pin name Function Pin name Function VssP2 Not used VssC4 FbiSo Flyback input/sandcastle output V1.8C4 1.8V (Digital) Hout Horizontal output V3.3A3 3.3V VssComb VrefP_Sdac 3.3V (Positive) V5Comb VrefN_Sdac Vin/R2/Pr PIP R input VrefP_Sdac 3.3V (Negative) Uin/B2/Pb...

  • Page 6: Disassembly

    SECTION 3 DISASSEMBLY DISASSEMBLY PROCEDURE 3.1.1 REMOVING THE REAR COVER • Unplug the power cord. (1) Remove the 2 screws [A], 7 screws [B] and 4 screws [C]. (2) Withdraw the REAR COVER toward you. CAUTION: When reinstalling the rear cover, carefully push it inward after inserting the MAIN PWB into the REAR COVER groove.
  • Page 7 FRONT CABINET SPEAKER CRT SOCKET PWB (Within MAIN PWB) POWER CORD SPEAKER MAIN PWB BASS PWB REAR COVER Fig.1 (No.YA453)1-7...
  • Page 8 MEMORY IC REPLACEMENT • This model uses the memory IC. Memory IC: IC702 on MAIN PWB The memory IC memorizes data for correctly operating the video and deflection circuits. When replacing the memory IC, be sure to use the same type IC written with the initial values of data. In other words, use the specific IC listed in "PRINTED WIRING BOARD PARTS LIST".
  • Page 9 3.2.2 SYSTEM CONSTANT SETTING 3.2.3.3 REMOTE CONTROL MENU OPERATION (1) PICTURE SETTING Setting item Setting value SYSTEM OTHERS Setting item Setting position COMB PICTURE MODE BRIGHT TILT PICTURE / BRIGHT / DETAIL / Centre COLOR / TINT SOUND STEREO WHITE BALANCE COOL BLUE BACK MUTE AUTO...
  • Page 10 3.2.4 SERVICE MODE SETTING ITEMS Setting item Setting value 1. IF 1. VCO 2. DELAY POINT 2. V / C 1. SCREEN 2. CUTOFF(B/G) 3. WDR(R/G/B) 4. BRIGHT(TV/VDO 1/2/3) 5. CONT(TV/VDO 1/2/3) 6. COLOR (TV/VDO1/2/3) 7. TINT(TV/VDO 1/2/3) 8. SHARP [Do not adjust] 9.
  • Page 11 REPLACEMENT OF CHIP COMPONENT 3.3.1 CAUTIONS (1) Avoid heating for more than 3 seconds. (2) Do not rub the electrodes and the resist parts of the pattern. (3) When removing a chip part, melt the solder adequately. (4) Do not reuse a chip part after removing it. 3.3.2 SOLDERING IRON (1) Use a high insulation soldering iron with a thin pointed end of it.

  • Page 12: Adjustment

    SECTION 4 ADJUSTMENT ADJUSTMENT PREPARATION MEASURING INSTRUMENT AND FIXTURES (1) There are 2 ways of adjusting this TV : One is with the (1) DC voltmeter (or digital voltmeter) REMOTE CONTROL UNIT and the other is the (2) Oscilloscope conventional method using adjustment parts and (3) HV voltmeter components.
  • Page 13 ADJUSTMENT LOCATION S804 S802 J808 J807 J806 J809 S805 S803 S801 POWER SW FRONT S901 CN00S POWER CORD IC702 DEG COIL IC701 YOKE BASS PWB ASS'Y J801 J802 J803 J804 CN00C MAIN PWB ASS'Y CN00B CN00C CN00B TU001 UPPER : FOCUS 1.
  • Page 14 BASIC OPERATION OF SERVICE MODE 4.6.1 TOOL OF SERVICE MODE OPERATION Operate the SERVICE MODE with the REMOTE CONTROL UNIT. 4.6.2 SERVICE MODE ITEMS With the SERVICE MODE, various adjustments can be made, and they are broadly classified in the following items of settings. 1.IF This mode adjusts the setting values of the IF circuit.
  • Page 15 4.6.4 SERVICE MODE FLOW CHART 1. IF SERVICE MENU SERVICE MENU IF SERVICE MENU 1. IF 2. V/C VCO (CW) ***** 3. AUDIO 4. DEF TOO HIGH 5. VSM W/B 6. STATUS 1. VCO ABOVE REFERENCE 7. PLUG & PLAY (ON) JUST REFERENCE 2.
  • Page 16 (2) Do not change the initial setting values of the setting items not listed in "ADJUSTMENT PROCEDURE". (3) The " --- " means adjustment is not possible. [2. V/C] * is variable values for adjustment. [AV-21VT16/P] Initial setting value Adjustment item...
  • Page 17 [3. AUDIO] *This submenu is for display only, no adjustment is required. Function Item Setting value AUDIO 1. DC XO ADJ 19H* 2. NICAM LOWER ERR LIM 3. NICAM UPPER ERR LIM 4. A2 ID THR Function MODE Item 100Hz 300Hz 1kHz 3kHz...
  • Page 18 [5. VSM W/B] Setting value Variable Setting item range BRIGHT SOFT STANDARD THEATER 1. BRIGHT -16 - 16 2. CONT -16 - 16 3. COLOR -16 - 16 4. SHARP -16 - 16 5. HUE -16 - 16 Setting value Variable Setting item range...
  • Page 19 ADJUSTMENT PROCEDURE 4.8.1 CHECK ITEM Measuring Item Test point Adjustment part Description instrument B1 VOLTAGE DC voltmeter CN00B connector (1) Receive any broadcast. 1-pin:TP-B1 (2) Connect a DC voltmeter to 1-pin and 3-pin of CN00B Remote 3-pin:TP-E connector. control unit [MAIN PWB] (3) Make sure that the voltage is DC134.5V ±2.0V.
  • Page 20 4.8.2 TUNER / IF CIRCUIT Measuring Item Test point Adjustment part Description instrument DELAY POINT Signal [1. IF] (1) Receive a black and white signal (COLOR off). (AGC) generator 2. DELAY POINT (2) Select 1. IF. (AGC TAKE-OVER) (3) Select <2. DELAY POINT>. Remote (4) Set the setting values of the setting items as shown control unit...
  • Page 21 Measuring Item Test point Adjustment part Description instrument V. POSITION Signal [4. DEF] PAL V. POSITION generator 1. V-SHIFT (1) Receive a circle pattern signal of vertical frequency 50Hz (PAL). Remote (2) Select 4. DEF from the SERVICE MODE. control unit (3) Select <1.
  • Page 22 Measuring Item Test point Adjustment part Description instrument V.LINEARITY Signal [4. DEF] PAL V. LINEARITY generator 12. V-S. CR (1) Receive a PAL crosshatch signal. 13. V-LIN (2) Select 4. DEF from the SERVICE MODE. Remote (3) Select <12. V-S.CR>. control unit (4) Set the initial setting value of <12.
  • Page 23 COMPRESS : ON (16:9) Measuring Item Test point Adjustment part Description instrument V. SIZE Signal [4.DEF] PAL V. SIZE generator 14. V. ZOOM (1) Receive a circle pattern signal of vertical frequency 3. V-SIZE 50Hz (PAL). Remote (2) Set the COMPRESS(16 : 9) to ON. control unit (3) Select 4.
  • Page 24 4.8.5 VIDEO CIRCUIT Measuring Item Test point Adjustment part Description instrument WHITE Signal [2. V/C] COMPOSITE WHITE BALANCE (1) Receive a PAL black and white signal (COLOR off). BALANCE generator 2. CUTOFF (B) (2) Set the PICTURE MODE to BRIGHT. (Low light) 2.
  • Page 25 (1) Receive a NTSC 3.58MHz broadcast. (2) Follow the same step 2 to 8 as in PAL COLOR. Voltage setting VOLTAGE (W-B) NTSC 4.43 COLOR SECAM NTSC • When NTSC 3.58 COLOR is set, NTSC 4.43 COLOR +21V(VDO) +20(RF) AV-21VT16/P will be automatically set. (No.YA453)1-25...
  • Page 26 (2) Follow the same step 2 to 8 as in PAL TINT. Voltage setting NTSC 4.43 TINT VOLTAGE (W-B) • When NTSC 3.58 TINT is set, NTSC 4.43 TINT will be NTSC TINT PAL TINT automatically set. AV-21VT16/P +4V(RF) +14V(VDO) 1-26 (No.YA453)
  • Page 27 4.8.6 VSM PRESET SETTING Measuring Item Test point Adjustment part Description instrument VSM PRESET Remote [5.VSM W/B] (1) Select 5.VSM W/B from the SERVICE MODE. control unit 1. BRIGHT (2) Select the BRIGHT with the [OK] key. 2. CONT (3) Adjust the [MENU / ] key to bring the set values 3.
  • Page 28 4.8.7 PURITY AND CONVERGENCE PURITY ADJUSTMENT NOTE: The final adjustment of CONVERGENCE must be done after WEDGE DEFLECTION the FOCUS adjustment. (CONVERGENCE is changed by YOKE FOCUS adjustment.) When makes difference by FOCUS adjustment, should be reconfirming PURITY adjustment. (1) Demagnetize CRT with the demagnetizer. P / C (2) Loosen the retainer screw of the deflection yoke.
  • Page 29 STATIC CONVERGENCE ADJUSTMENT (1) Input a crosshatch signal. (2) Using 4-pole convergence magnets, overlap the red and blue lines in the centre of the screen (Fig.1) and turn them (FRONT VIEW) to magenta (red/blue). (3) Using 6-pole convergence magnets, overlap the magenta (red/blue) and green lines in the centre of the screen and turn them to white.

  • Page 30: Troubleshooting

    SECTION 5 TROUBLESHOOTING SELF CHECK FUNCTIONS 5.1.1 OUTLINE This model has self check functions given below. When an abnormality has been detected, the SUB POWER is turned off and POWER LED flashes to inform of the failure. An abnormality is detected by the signal input state of the control line connected to the microcomputer.
  • Page 31 Victor Company of Japan, Limited Display Category 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan (No.YA453) Printed in Japan...

  • Page 32: Parts List

    PARTS LIST CAUTION The parts identified by the symbol are important for the safety . Whenever replacing these parts, be sure to use specified ones to secure the  safety. The parts not indicated in this Parts List and those which are filled with lines --- in the Parts No. columns will not be supplied. P.W.

  • Page 33: Exploded View Parts List

    BASS P.W. BOARD ASS'Y (SCW-6001A-H2) ....................3-7 REMOTE CONTROL UNIT PARTS LIST (RM-C1287-1H) ..................3-8 PACKING ..................................3-8 PACKING PARTS LIST ............................... 3-8 USING P.W. BOARD & REMOTE CONTROL UNIT P.W.B ASS'Y AV-21VT16/P MAIN P.W.B SCW-1920A-H2 BASS P.W.B SCW-6001A-H2 REMOTE CONTROL UNIT...

  • Page 34: Exploded View -1

    EXPLODED VIEW -1 DY01 CRT SOCKET PWB T522 (Within MAIN PWB) MAIN PWB BASS PWB RATING LABEL (No.YA453)3-3...

  • Page 35: Printed Wiring Board Parts List

    PRINTED WIRING BOARD PARTS LIST MAIN P.W. BOARD ASS'Y (SCW-1920A-H2) Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local D715 MA111-X SI DIODE D716 MA111-X SI DIODE IC302 S9648 PHOTO CONDUCTOR D717 MA111-X SI DIODE IC351 TDA6107AJF/N1...
  • Page 36 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C554 QETN1EM-108Z E CAPACITOR 1000uF 25V M C778 QETN1VM-476Z E CAPACITOR 47uF 35V M C555 QFLC2AJ-103Z M CAPACITOR 0.01uF 100V J C779 QETN1HM-106Z E CAPACITOR 10uF 50V M C571 QEZ0203-107...
  • Page 37 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R411 NRSA63J-222X MG RESISTOR 2.2kΩ 1/16W J R735 NRSA63J-101X MG RESISTOR 100Ω 1/16W J R412 NRSA63J-222X MG RESISTOR 2.2kΩ 1/16W J R736 NRSA63J-101X MG RESISTOR 100Ω...

  • Page 38: Bass P.w. Board Ass'y (Scw-6001A-H2)

    BASS P.W. BOARD ASS'Y (SCW-6001A-H2) Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R962 QRL029J-223 OMF RESISTOR 22kΩ 2W J R963 NRSA63J-223X MG RESISTOR 22kΩ 1/16W J IC671 MX3000DS-X R964 NRSA63J-223X MG RESISTOR 22kΩ...

  • Page 39: Remote Control Unit Parts List (Rm-C1287-1H)

    REMOTE CONTROL UNIT PARTS LIST (RM-C1287-1H)  Ref No. Part No. Part Name Description Local R25-8566 BATTERY COVER PACKING PACKING PARTS LIST  Ref.No. Part No. Part Name Description Local GG10285-009B-H PACKING CASE GG10387-001B-H CUSHION ASS'Y 4pcs in 1set GG30097-003B-H POLY BAG GG30096-001B-H POLY BAG...
  • Page 40 COLOR TELEVISION EQUALIZER • CINEMA SURROUND • COMPONENT INPUT Contents AV-29BA16 AV-21BA16 Knowing your TV’s features ............3 Remote control buttons and basic functions ......4 AV-29MT16 AV-21MT16 TV buttons and functions ............6 AV-29ST16 AV-21VT16 Setting up your TV ..............7 AV-29VT16 Basic setting for picture ..............9 Advanced setting for picture .............
  • Page 41 Thank you for buying this JVC color television. To make sure you understand how to use your new TV, please read this manual thoroughly before you begin. WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE 7 This TV can be turned on/off power by connecting/disconnecting the AC THIS APPLIANCE TO RAIN OR MOISTURE.

  • Page 42: Knowing Your Tv's Features

    Knowing your TV’s features Main features DVD MENU Just connect DVD player to the television. The television will detect DVD signal and display picture on the screen automatically and you can adjust pictures and sound while you are COLOR watching DVD as your desire. When disconnect DVD player, the television will display the previous channel.

  • Page 43: Remote Control Buttons And Basic Functions

    Remote control buttons and basic functions No. Press 1 POWER Turn on or off the TV from standby mode. COLOR 2 MENU/OK Display menu and confi rm selected function. 3 5 / ∞ / 2 / 3 Select and adjust menu function. 4 CHANNEL -/+ EXIT Select the desired channel number.
  • Page 44 Remote control buttons and basic functions (continued) How to operate menus and menus locations Top menu 2nd menu Location 3nd menu Location Operation Note MENU PICTURE PICTURE MODE – – PICTURE SETTING P.10 PICTURE P.10 Press the MENU/OK button 2. Display the MENU To exit the MENU, press the DISPLAY/...

  • Page 45: Tv Buttons And Functions

    TV buttons and functions The illustrations shown below is for AV-21BA16 and AV-29ST16 only, which are used for explanation purpose. Your TV may not look exactly the same as illustrated. No. Button/terminal Description Page Front of the TV 1 L (main power) Press to turn on or turn off the TV’s main power.

  • Page 46: Setting Up Your Tv

    INPUT OVER / MONO MONO JVC logo will appear on the screen again at the phase of “SETUP TOUR RESTART?” function. Then the initial setting can be performed according to page 8. Note: While in the INSTALL menu with the cursor pointing at INSTALL, pressing The illustration shown is just a sample.
  • Page 47 Setting up your TV (continued) Making the initial settings When turn on the TV at Set up your TV by pressing MENU/OK button or waiting for 15 seconds, then operate the TV by the next time following the steps below: AUTO PROGRAM AUTO PROGRAM CHANNEL SUMMARY...

  • Page 48: Color System

    Basic setting for picture COLOR SYSTEM PICTURE MODE You can select the appropriate color system when the picture is not You can choose the desired picture setting with one-touch. clear or no color appears. Press the PICTURE MODE button to select a setting. Press the COLOR SYSTEM button to select a setting.

  • Page 49: Picture Setting

    Basic setting for picture (continued) PICTURE SETTING WHITE BALANCE You can adjust the desired picture setting when selecting USER in You can change the white balance of the picture to better match PICTURE MODE. the type of video being viewed. Select WHITE BALANCE in the PICTURE menu, then choose the Select USER in PICTURE MODE under PICTURE menu.

  • Page 50: Blue Back

    Advanced setting for picture AI ECO SENSOR (ECO)/ECO MODE Press the 5/∞ buttons until the picture becomes level. Then press the MENU/OK button. You can adjust TV screen contrast according to the brightness of your room. Press the ECO button to select the desired mode. COMPRESS (16:9) Cancel the function.

  • Page 51: Sound Mode

    Basic setting for sound SOUND MODE You can choose the desired sound setting. Select the SOUND MODE in SOUND menu, then choose the setting. MENU SOUND menu SOUND MODE USER You can change this sound setting as you like. Select USER and adjust the frequencies in EQUALIZER (100, 300, 1K, 3K, 8K Hz).

  • Page 52: Advanced Setting For Sound

    Advanced setting for sound CINEMA SURROUND You can enjoy an enhanced sound for wider audience. You can enjoy the stereo and SAP broadcasted programs. Press the CINEMA SURROUND button to select a setting. Select the MTS in SOUND menu, then choose the desired mode. Cancel the function.
  • Page 53 Advanced setting for sound (continued) EQUALIZER AI VOLUME You can adjust the sound level of each frequencies when selecting You can adjust the volume of all the channels and video inputs to USER mode in SOUND MODE. the same level automatically depends on the strength of signal of the sources.

  • Page 54: Dvd Menu

    DVD Menu AUTO SIGNAL DETECT Enjoy movie playback with suitable color temperature, sharp subtitles and improved gradation for black, like in a theater. When the DVD input signal is detected, the input mode will be changed Cancel the function. to VIDEO-2 automatically. And when the DVD input signal is not detected, the input mode will be changed to RF previous input mode.

  • Page 55: Child Lock

    Customized setting CHILD LOCK You can reduce the picture noise. You can disable the front control buttons of the TV. Select VNR in PICTURE menu, then choose a setting of VNR function. Select CHILD LOCK in the FEATURES menu, then choose ON or OFF.

  • Page 56: Off Timer

    Customized setting (continued) OFF TIMER BEEP You can set the TV to turn off automatically to standby mode after You can use the BEEP function to alert you during AUTO SIGNAL a set time. DETECT, AI ECO SENSOR Detect, Stereo Detect, ON TIMER/OFF Press the OFF TIMER button to select a desired period of time.

  • Page 57: Tv Channel Presetting

    TV channel presetting To register the TV channels automatically Choose CHANNEL SUMMARY, then press the MENU/OK (AUTO PROGRAM) button. CHANNEL SUMMARY menu appears. You can register the TV channels into the TV’s channel list automatically. CHANNEL SUMMARY Display the INSTALL menu. CH/CC SKIP CH 02...

  • Page 58: Additional Preparation

    Additional preparation The illustrations shown in this section are for AV-21BA16 and AV- Connecting to rear component/video input 29ST16 only, which are used for explanation purpose. Your TV may terminals and output terminals not look exactly the same as illustrated. Rear of TV Before connecting •...

  • Page 59: Troubleshooting

    Troubleshooting If a problem occurs when you are using the TV, check the below troubleshooting guide before calling for repair. • No picture, no sound • Deactivate the BLUE BACK function if it is turned • Color patches appear • This may due to the magnetized device such as a at the corner of the speaker near to your TV.

  • Page 60: Specifi Cations

    Specifi cations TV RF systems Color systems TV mode: NTSC 3.58 MHz VIDEO mode: PAL, SECAM, NTSC 3.58 MHz, NTSC 4.43 MHz Receiving channels VHF low channel (VL), VHF high channel (VH), UHF channel (U) Receives cable channels in mid band, super band and hyper band. Power requirements AC 110 to 240 V, 50 Hz / 60 Hz External input / output...
  • Page 61 MEMO...
  • Page 62 MEMO...
  • Page 63 0606-FLE-JMT © 2006 Victor Company of Japan, Limited...
  • Page 64 SCHEMATIC DIAGRAMS FLAT COLOR TELEVISION YA453 2006 AV-21VT16 CD-ROM No.SML2006010 BASIC CHASSIS COLOR EXIT CLOSED CAPTION 100+ CINEMA BASS SURROUND RM-C1287 No.YA453 COPYRIGHT © 2006 Victor Company of Japan, Limited 2006/10...
  • Page 65 AV-21VT16 STANDARD CIRCUIT DIAGRAM NOTE ON USING CIRCUIT DIAGRAMS 1.SAFETY Type No indication : Ceramic capacitor The components identified by the symbol and shading are : Metalized mylar capacitor critical for safety. For continued safety replace safety ciritical : Polypropylene capacitor components only with manufactures recommended parts.
  • Page 66 BASS PWB CIRCUIT DIAGRAM ........................ 2-9 PATTERN DIAGRAMS ................2-11 MAIN PWB PATTERN ..........................2-11 BASS PWB PATTERN ..........................2-13 VOLTAGE CHARTS .................. 2-15 WAVEFORMS .................... 2-16 USING P.W. BOARD P.W.B ASS'Y name AV-21VT16/P MAIN P.W.BOARD SCW-1920A-H2 BASS P.W.BOARD SCW-6001A-H2 SEMICONDUCTOR SHAPES TRANSISTOR BOTTOM VIEW...

  • Page 67: Block Diagram

    BLOCK DIAGRAM MAIN PWB IC701 MAIN MICRO COMPUTER/ IF VIDEO RGB SYNC DEF. PROCESS IC351 108,109 SCL1, SDA1 RGB OUT I 2 C IC702 127,128 SCL0, SDA0 MICRO MAIN MEMORY DIGITAL SIGNAL PROCESS COMPUTER TU001 98,99 TUNER REMOTE PORT CRT SOCKET KEY_IN PEAKING SCAN ROUT...

  • Page 68: Circuit Diagrams

    MAIN PWB(3/3) CIRCUIT DIAGRAMS (CRT SOCKET) SHEET 2 MAIN PWB CIRCUIT DIAGRAM (1/3) SHEET1 VIDEO-3 CN10TA INPUT CN00C CN00T J806 J808 J807 MAIN PWB ASS'Y(1/3) IC801 S805 S804 S803 S802 S801 IC302 J809 SCW-1920A-H2 D808 R817 CN00S SPEAKER C806 C808 100/16 R630 R632...
  • Page 69 MAIN PWB CIRCUIT DIAGRAM (2/3) (3/3)SHEET 2 MAIN PWB(1/3) SHEET1 IC351 RY901 F901 AC110V-AC240V 3.3V_STB D956 C966 50Hz/60Hz VA901 R910 100/16 CN0PW R963 R358 SK351 C910 C964 Q955 S901 R359 IC971 R964 H_DRIVE R360 LF901 D957 P_ON/OFF C352 4.7/250 PROTECT D595 SG351 SG353...

  • Page 70: Bass Pwb Circuit Diagram

    BASS PWB CIRCUIT DIAGRAM SHEET 3 MAIN PWB (1/3) SHEET1 CN00M CN00M GG30161-001A-H L671 QQL244J-4R7Z BASS PWB ASS'Y SCW-6001A-H2 R675 C690 C691 R677 R678 C683 C684 R679 C688 C689 4.7K 4.7K IC671 10/50 NCF21AZ-475X NCF21AZ-475X MX3000DS-X R682 DVDD C671 R683 .47/50 DGND AVDD...

  • Page 71: Pattern Diagrams

    PATTERN DIAGRAMS MAIN PWB PATTERN R822 C807 D354 IC302 S805 J806 J808 J807 R824 R823 D808 IC801 D356 J809 R961 S801 S802 S803 S804 CN0E3 C808 D355 TP-47B R825 R633 R520 D976 K107 R632 W011 L304 Y809 D351 CN0E1 CN00S C831 C306 R309...

  • Page 72: Bass Pwb Pattern

    BASS PWB PATTERN [SOLDER SIDE] C685 C677 C686 IC671 C689 C679 C688 C680 C671 R676 R673 R6 74 C673 X671 C672 R677 CN00M R678 BASS PWB PATTERN [PARTS SIDE] C677 C679 C671 X671 CN00M (No.YA453)2-13 2-14(No.YA453)

  • Page 73: Voltage Charts

    VOLTAGE CHARTS <MAIN PWB> (CRT SOCKET) <MAIN PWB> [P.2-5 - P.2-8] [P.2-8] MODE MODE MODE MODE MODE DC ( V ) DC ( V ) DC ( V ) DC ( V ) DC ( V ) PIN NO. PIN NO. PIN NO.

  • Page 74: Waveforms

    WAVEFORMS -MAIN PWB- IC401-3 IC401-6 IC401-7 IC401-1 IC401-5 27Vp-p 30Vp-p 0.8Vp-p 1.0Vp-p 53Vp-p IC701-10 IC701-11 IC701-22 IC701-23 IC701-48 IC701-66 IC701-67 (0.2µs) (0.2µs) 2.3Vp-p 2.7Vp-p 1.0Vp-p 1.3Vp-p 2.0Vp-p 5.0Vp-p 3.0Vp-p IC701-74 IC701-85 IC701-86 IC701-87 1.2Vp-p 1.4Vp-p 1.4Vp-p 1.7Vp-p T522-2 T522-4 T522-6 T522-7 T522-8 T522-9...
  • Page 75 Victor Company of Japan, Limited Display Category 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama-city, kanagawa-prefecture, 221-8528, Japan (No.YA453) Printed in Japan...

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