JVC AV-21B116 Service Manual

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Table of Contents
SERVICE MANUAL
9
2006
YA417
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28
COLOUR TELEVISION
AV-21B116
AV-V2160
[AV-21B116/B]

TABLE OF CONTENTS

COPYRIGHT © 2006 Victor Company of Japan, Limited
,
/B
/B
POWER /
ON TIMER
[AV-V2160/B]
BASIC CHASSIS
CG4
No.YA417
2006/9

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  • Page 1: Table Of Contents

    SERVICE MANUAL COLOUR TELEVISION YA417 2006 AV-21B116 AV-V2160 BASIC CHASSIS POWER / ON TIMER [AV-21B116/B] [AV-V2160/B] TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 SPECIFICATION Contents Items AV-21B116/B AV-V2160/B Dimensions (W × H × D) 59.8 cm × 47.6 cm × 47.7 cm 64.9 cm × 46.6 cm × 47.4 cm Mass 22 kg 23 kg TV RF System B/G, I, D/K Colour System...
  • 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

    This function can set a channel you frequently view to the Return Channel and you can view that channel at any time with one-touch. MAIN DIFFERENCE LIST Item AV-21B116/B AV-V2160/B Power Cord Flat pin type Round pin type MAIN PWB...
  • Page 5: Disassembly

    SECTION 3 DISASSEMBLY DISASSEMBLY PROCEDURE [AV-21B116/B] 3.1.1 REMOVING THE REAR COVER • Unplug the power cord. (1) Remove the 6 screws [A], 1 screw [B] and 1 screw [C] as shown in Fig.1. (2) Withdraw the REAR COVER toward you.
  • Page 6 [AV-21B116/B] FRONT CABINET SPEAKER CRT SOCKET PWB (Within MAIN PWB) FRONT LED PWB (Within MAIN PWB) POWER CORD SPEAKER MAIN PWB REAR COVER Fig.1 1-6 (No.YA417)
  • Page 7 DISASSEMBLY PROCEDURE [AV-V2160/B] 3.2.1 REMOVING THE REAR COVER • Unplug the power cord. (1) Remove the 2 screws [A], 7 screws [B] and 1 screw [C] as shown in Fig.2. (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 8 [AV-V2160/B] FRONT CABINET SPEAKER CRT SOCKET PWB (Within MAIN PWB) POWER CORD SPEAKER MAIN PWB REAR COVER Fig.2 1-8 (No.YA417)
  • Page 9 MEMORY IC REPLACEMENT • This model uses the memory IC. • This memory IC stores data for proper operation of the video and drive circuits. • When replacing, be sure to use an IC containing this (initial value) data. 3.3.1 MEMORY IC REPLACEMENT PROCEDURE 1.
  • Page 10 3.3.2 SETTINGS OF FACTORY SHIPMENT 3.3.3 SYSTEM CONSTANT SETTING 3.3.2.1 BUTTON OPERATION Setting item Setting value Setting item Setting position COLOUR TRIPLE POWER BILINGUAL CHANNEL TUNER VOLUME ECO SENSOR LANGUAGE E / T 3.3.2.2 REMOTE CONTROL DIRECT OPERATION B/B SOUND Setting item Setting position LOCK...
  • Page 11 (2) Replace the IC301 with a new one. (3) While pressing [MENU] button and [VOL+] button ON the FRONT CABINET simultaneously, turn the POWER ON. When the POWER is turned ON, the data is written in the micro-computer immediately. LOCATIONS OF FRONT PANEL BUTTONS [AV-21B116/B] [AV-V2160/B] (No.YA417)1-11...
  • Page 12 REPLACEMENT OF CHIP COMPONENT 3.4.1 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. 3.4.2 SOLDERING IRON (1) Use a high insulation soldering iron with a thin pointed end of it.
  • Page 13: 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) Signal generator components.
  • Page 14: Main Pwb

    ADJUSTMENT LOCATIONS CRT SOCKET PWB (SOLDER SIDE) TP-47G/R TP-47B TP-E CRT EARTH WIRE (BRAIDED ASS'Y) FRONT F901 IC702 IC701 MEMORY IC IC301 TU001 MAIN PWB 1Pin TP-91(B1) UPPER:FOCUS 2Pin NC LOWER:SCREEN 3Pin X-ray1 4Pin X-ray2 5Pin TP-E( ) 1-14 (No.YA417)
  • Page 15 BASIC OPERATION OF SERVICE MENU 4.6.1 TOOL OF SERVICE MENU OPERATION Operate the SERVICE MENU with the REMOTE CONTROL UNIT. 4.6.2 SERVICE MENU ITEMS With the SERVICE MENU, various adjustments can be made, and they are broadly classified in the following items of settings. 1.IF Adjustment of the IF circuits.
  • Page 16 (1) By pressing the [6] key, you can change the ON or OFF [should be OFF]. Should be OFF: If it is ON, when you turn off the power and turn on a power again, the JVC’s logo will be shown about 15 seconds automatically, and the SETUP TOUR starts.
  • Page 17 4.6.8 SERVICE MENU FLOW CHART SERVICE MENU 1. IF VCO (CW) ***.** TOO HIGH SERVICE MENU ABOVE REFERENCE 1.IF 2.V/C JUST REFERENCE 3.DEF 4.VSM PRESET BELOW REFERENCE 1. VCO 5.PRESET TOO LOW 6.SETUP TOUR OFF AFT ADJUST 2. DELAY POINT VCO ADJUST 1-6 : SELECT DISP : EXIT...
  • Page 18 INITIAL SETTING VALUE OF SERVICE MENU • Adjustment of the SERVICE MENU is made on the basis of the initial setting values ; however, the new setting values which set the screen in its optimum condition may differ from the initial setting. •...
  • Page 19 [5. PRESET] The items in the following table, it is no requirement for adjustment.If values had changed by the miss operation, set the initial setting values in the following table. COLOUR SYSTEM (Do not adjust) Initial setting value (Fixed value) Setting item Variable range SECAM...
  • Page 20 ADJUSTMENT PROCEDURE 4.8.1 CHECK ITEM Measuring Item Test point Adjustment part Description instrument B1 VOLTAGE Signal TP-B1 : 1-pin (1) Receive a whole black signal. generator TP-E : 5-pin (2) Connect a DC voltmeter to 1-pin and 5-pin of S1 (S1 connector) connector.
  • Page 21 Measuring Item Test point Adjustment part Description instrument DELAY POINT Signal [1. IF] (1) Receive a black and white signal (colour 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 22 4.8.4 DEFLECTION CIRCUIT • There are 2 modes of adjustment (setting value) 50Hz mode and 60Hz mode, depending upon the kind of signals (vertical frequency 50Hz / 60Hz). • When adjusted in 50Hz mode and 60Hz mode will be automatically set. The setting (adjustment) using the REMOTE CONTROL UNIT is made on the basis of the initial setting values.The setting values which adjust the screen to the optimum condition can be different from the initial setting values.
  • Page 23 4.8.5 VIDEO CIRCUIT The setting (adjustment) using the REMOTE CONTROL UNIT is made on the basis of the initial setting values. The setting values which adjust the screen to the optimum condition can be different from the initial setting values. Do not change the initial setting values of the setting items not listed in "ADJUSTMENT PROCEDURE".
  • Page 24 COLOUR. MODEL SECAM NTSC3.58 NTSC4.43 (3) Adjust NTSC 3.58 COLOUR to bring the value of (A) in the voltage table. AV-21B116/B +12V +8V (VDO) AV-V2160/B NTSC 4.43 COLOUR (1) When NTSC 3.58 is set, NTSC 4.43 will be automatically set at the respective values.
  • Page 25 NTSC 4.43 TINT (1) When NTSC 3.58 is set, NTSC 4.43 will be automatically set at the respective values. Voltage setting (B) MODEL NTSC3.58 NTSC4.43 AV-21B116/B +6V (VDO) AV-V2160/B SECAM BLACK Signal [2. V/C] (1) Input a SECAM full field colour bar signal.
  • Page 26 4.8.6 VSM PRESET SETTING Measuring Item Test point Adjustment part Description instrument VSM PRESET Remote [4. VSM PRESET] (1) Select 4. VSM PRESET from the SERVICE MENU. control unit TINT (2) Set the PICTURE MODE to BRIGHT. COLOUR (3) Select < TINT >. BRIGHT (4) Set the initial setting value of <...
  • Page 27 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 28: Troubleshooting

    STATIC CONVERGENCE ADJUSTMENT (1) Input a crosshatch signal. (2) Using 4-pole convergence magnets, overlap the red and (FRONT VIEW) blue lines in the centre of the screen (Fig.1) and turn them 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 29 (No.YA417)1-29...
  • Page 30 Victor Company of Japan, Limited Display Category 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan (No.YA417) Printed in Japan...
  • Page 31 1 Confirm which remote control you have ..3 INSTRUCTIONS 2 Inserting the batteries ........3 3 Connecting the aerial and external devices ... 4 Thank you for buying this JVC 4 Connecting the power cord ......6 colour television. 5 SETUP TOUR ..........6...
  • Page 32: Safety Precautions

    Safety precautions WARNING • To prevent fire or shock hazard, do not expose the TV to rain or moisture. CAUTION • Operate only from the power source indicated on the rear of the TV. • Avoid damaging the power cord and mains plug. When you unplug the TV, pull it out by the mains plug.
  • Page 33: Preparation

    Preparation 1 Confirm which remote control you have RM-C1121 2 Inserting the batteries Correctly insert two batteries, observing the , and . polarities and inserting the . end first. CAUTION: Follow the cautions printed on the batteries. Notes: • Use AA/R6/UM-3 dry cell batteries. •...
  • Page 34: Connecting The Aerial And External Devices

    Preparation 3 Connecting the aerial and external devices • For further details, refer to the manuals provided with the devices you are connecting. • Connecting cables are not supplied. • The front and rear AUDIO/VIDEO input jacks are directly connected so that input to either jack is output through both.
  • Page 35 Preparation ■ Connecting other external devices To audio To video output output VCR (for playing) VIDEO AUDIO VCR (for recording) To audio To video input input • Illustration of AV-14F116. Camcorder TV game To video To audio output output VIDEO AUDIO MENU CHANNEL...
  • Page 36: Connecting The Power Cord

    Operate only from the power source indicated on the rear of the TV. 5 SETUP TOUR When the TV is first turned on it enters the SETUP TOUR mode, and the JVC logo is displayed. Follow the instructions on the on-screen display to perform the SETUP TOUR.
  • Page 37: Basic Operation

    Basic operation 1 Press the POWER button to turn your TV on. • If your TV does not turn on, press the Main power button on the TV then press the POWER button again. • You can also turn on your TV by pressing any of the following buttons;...
  • Page 38: Remote Control Buttons And Functions

    Remote control buttons and functions In VIDEO mode: PICTURE MODE button AUTO SECAM You can select one of three picture adjustment settings as you like. NTSC3.58 NTSC4.43 Press this button to select a mode. AUTO: Automatic colour system selection. BRIGHT: Heightens contrast and sharpness.
  • Page 39: Display Button

    Remote control buttons and functions DISPLAY button CHANNEL SCAN button You can continuously display the current You can quickly view all TV channels channel number or VIDEO mode on the programmes that you can view on your screen. TV, and search for the programme you want to view.
  • Page 40: Using The Tv's Menus

    Using the TV’s menus This TV has a number of functions you can operate using the menus. To use all your TV’s functions fully, you need to understand how to use the menus. 2 Repeatedly press the MENU T buttons to display a desired menu.
  • Page 41: On Timer

    Using the TV’s menus When the time set for the ON TIMER ON TIMER function is reached: Your TV will automatically turn on and The TV automatically turns on and the tune into the channel you set after the channel set for the ON TIMER function is period of time you set.
  • Page 42: Vnr

    Using the TV’s menus CHILD LOCK (Video Noise Reduction) You can reduce the picture noise. You can disable the front control buttons of the TV. 1 Press MENU T to display the When this function is set to “ON”, the TV “MENU 1”...
  • Page 43: Setup Tour

    EXIT BY 2 Press MENU M. OPERATE BY -+ D I SPLA Y JVC logo is appear and the SETUP 2 Press MENU M to start the AUTO TOUR function will start. CH PRESET function. For details, see page 6.
  • Page 44: Manual Ch Preset

    Using the TV’s menus If the picture is not clear: MANUAL CH PRESET Fine-tune the TV channel. You can manually preset desired TV channels to desired channels. 1 Press MENU t to select “FINE”. 1 Press MENU T to display the MANUAL FINE “MENU 3”...
  • Page 45: Skip

    Using the TV’s menus SKIP Picture Adjustments You can set undesired channels to be You can adjust the picture as you like. skipped. Channels set to be skipped 1 Press MENU T to display the cannot be selected by the CHANNEL m “MENU 4”...
  • Page 46: Using The Buttons On The Tv

    When ON TIMER function is on, it is red. 8 Main power button 9 Not application <AV-21D116> MENU CHANNEL VOLUME EXIT TIMER POWER <AV-21V116> POWER MENU CHANNEL VOLUME ON TIMER EXIT <AV-21B116> POWER TIMER MENU CHANNEL VOLUME EXIT...
  • Page 47 Using the buttons on the TV Basic operation Operating menus • Check to make sure the CHILD LOCK You can operate functions in menus using function is set to “OFF”. When the CHILD the front control buttons on the TV. LOCK function is set to “ON”, the TV cannot 1 Press MENU y to display a menu.
  • Page 48: Troubleshooting

    Troubleshooting If there is no picture or the TV does not operate normally, make sure the problem isn’t due to the reasons indicated below. If the problem persists even after taking the measures indicated, please contact a service technician. Poor picture Cannot turn the TV on •...
  • Page 49: Specifications

    Specifications MODEL AV-14F116 AV-21B116 AV-21C116 AV-21D116 AV-21V116 TV RF systems B/G , I , D/K Colour RF MODE PAL, SECAM systems VIDEO MODE PAL, SECAM, NTSC 3.58 MHz, NTSC 4.43 MHz Channel and frequencies VHF low channel (VL) = 46.25 to 168.25 MHz VHF high channel (VH) = 175.25 to 463.25 MHz...
  • Page 51: 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 52 CONTENTS USING P.W. BOARD & REMOTE CONTROL UNIT ....................3-3 EXPLODED VIEW PARTS LIST -1 [AV-21B116/B] ....................3-3 EXPLODED VIEW -1 [AV-21B116/B] ......................... 3-4 EXPLODED VIEW PARTS LIST -2 [AV-V2160/B] ...................... 3-5 EXPLODED VIEW -2 [AV-V2160/B] ..........................3-6 PRINTED WIRING BOARD PARTS LIST [AV-21B116/B] ..................3-7 MAIN P.W.
  • Page 53: Using P.w. Board & Remote Control Unit

    USING P.W. BOARD & REMOTE CONTROL UNIT P.W.B ASS'Y AV-21B116/B AV-V2160/B MAIN P.W.B SCG-1550A-BK SCG-1557A-BK ← REMOTE CONTROL UNIT RM-C1121-1H EXPLODED VIEW PARTS LIST -1 [AV-21B116/B]  Ref.No. Part No. Part Name Description Local  V01 A51MBA11X05AN05 PICTURE TUBE(ITC) Inc.DEF YOKE, PC MAGNET ...
  • Page 54: Exploded View -1 [Av-21B116/B]

    EXPLODED VIEW -1 [AV-21B116/B] CRT SOCKET PWB (Within MAIN PWB) FRONT LED PWB T522 (Within MAIN PWB) MAIN PWB RATING LABEL 3-4(No.YA417)
  • Page 55: Exploded View Parts List -2 [Av-V2160/B]

    PICTURE TUBE(ITC) Inc.DEF YOKE, PC MAGNET  L01 QQW0125-001 DEG COIL  T522 QQH0170-001 FB TRANSF GG30068-003A-H AV SHEET GG40023-002A-H JVC MARK GG30044-001B-H REMOCON LENS GG30042-001B-H LED LENS QYSBSBG4016ZA TAP SCREW M4 x 16mm(x2) QYSBSFG4016ZA TAP SCREW M4 x 16mm(x7)
  • Page 56: Exploded View -2 [Av-V2160/B]

    EXPLODED VIEW -2 [AV-V2160/B] CRT SOCKET PWB (Within MAIN PWB) T522 MAIN PWB RATING LABEL 3-6(No.YA417)
  • Page 57: Printed Wiring Board Parts List [Av-21B116/B]

    PRINTED WIRING BOARD PARTS LIST [AV-21B116/B] MAIN P.W. BOARD ASS'Y (SCG-1550A-BK) Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C004 QETN1CM-477Z E CAPACITOR 470uF 16V M C005 QFVF1HJ-104Z MF CAPACITOR 0.1uF 50V J...
  • Page 58 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C581 QFVF1HJ-104Z MF CAPACITOR 0.1uF 50V J R301 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J C652 NCB31HK-473X C CAPACITOR 0.047uF 50V K R302 NRSA63J-472X MG RESISTOR 4.7kΩ...
  • Page 59 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R661 QRE121J-271Y C RESISTOR 270Ω 1/2W J CF162 QAX0694-001Z C FILTER 5.742MHz R662 QRE121J-271Y C RESISTOR 270Ω 1/2W J ICP-N50-T IC PROTECTOR 2.0A CP981 R664 NRSA63J-682X MG RESISTOR...
  • Page 60: Printed Wiring Board Parts List [Av-V2160/B]

    PRINTED WIRING BOARD PARTS LIST [AV-V2160/B] MAIN P.W. BOARD ASS'Y (SCG-1557A-BK) Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C001 QETN1HM-106Z E CAPACITOR 10uF 50V M C002 NCB31HK-103X C CAPACITOR 0.01uF 50V K IC301 NN5198K C004...
  • Page 61 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C571 QETN1AM-107Z E CAPACITOR 100uF 10V M R165 NRSA63J-220X MG RESISTOR 22Ω 1/16W J C572 QETN1EM-476Z E CAPACITOR 47uF 25V M R166 NRSA63J-821X MG RESISTOR 820Ω...
  • Page 62 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R659 QRE121J-4R7Y C RESISTOR 4.7Ω 1/2W J R660 NRSA63J-153X MG RESISTOR 15kΩ 1/16W J CF161 QAX0694-001Z C FILTER 5.742MHz R661 QRE121J-271Y C RESISTOR 270Ω 1/2W J CF162 QAX0694-001Z C FILTER...
  • Page 63: Remote Control Unit Parts List (Rm-C1121-1H)

    REMOTE CONTROL UNIT PARTS LIST (RM-C1121-1H)  Ref No. Part No. Part Name Description Local R56-1400 BATTERY COVER PACKING [AV-21B116/B] PACKING PARTS LIST [AV-21B116/B]  Ref.No. Part No. Part Name Description Local GG10285-012A-H PACKING CASE GG10422-001A-H CUSHION ASS'Y 5pcs in 1set...
  • Page 64: Packing [Av-V2160/B]

    PACKING [AV-V2160/B] PACKING PARTS LIST [AV-V2160/B]  Ref.No. Part No. Part Name Description Local GG10285-009B-H PACKING CASE GG10387-001B-H CUSHION ASS'Y 4pcs in 1set GG30097-003A-H POLY BAG GG30096-001A-H POLY BAG ------------ BATTERY 1.5V AA/R6 (x2) GGT0111-001B-H INST BOOK  ATEAB001-00A MATCHING BOX GG40042-001A-H CORD CLAMP R/C RM-C1121-1H...
  • Page 65 SCHEMATIC DIAGRAMS COLOUR TELEVISION AV-21B116 AV-V2160 CD-ROM No.SML200609 BASIC CHASSIS POWER / ON TIMER No.YA417 COPYRIGHT © 2006 Victor Company of Japan, Limited. 2006/9...
  • Page 66: Standard Circuit Diagram

    AV-21B116 AV-V2160 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 67 SEMICONDUCTOR SHAPES ..............2-2 BLOCK DIAGRAM ..................2-3 CIRCUIT DIAGRAMS ..................2-5 MAIN PWB CIRCUIT DIAGRAM [AV-21B116/B] (1/4)(2/4) ................2-5 MAIN PWB CIRCUIT DIAGRAM [AV-21B116/B] (3/4)(4/4) ................2-7 MAIN PWB CIRCUIT DIAGRAM [AV-V2160/B] (1/3) .................. 2-9 MAIN PWB CIRCUIT DIAGRAM [AV-V2160/B] (2/3)(3/3) ................2-11 PATTERN DIAGRAMS ................
  • Page 68: Block Diagram

    BLOCK DIAGRAM MAIN PWB(1/4, 3/4) POWER LED STB_PW IC703 5V REG.& RESET TIMER LED SF102 TU001 Q102 LED(TIM) IF AMP SAW FILTER TUNER REMOCON REMOCON RECEIVER SCL/SDA HEADPHONE IC651 SPEAKER L AUDIO AMP AUDIO OUT SCL/SDA SCL/SDA SPEAKER R IC701 IC702 MAIN PWB(4/4) MEMORY...
  • Page 69: Circuit Diagrams

    CIRCUIT DIAGRAMS MAIN PWB CIRCUIT DIAGRAM [AV-21B116/B](1/4)(2/4)SHEET1 MAIN PWB ASS'Y(2/4) (FRONT LED) SCG-1550A-BK D704 R772 S705 SPEAKER IC704 S702 S704 POWER LED(GREEN) ON TIMER LED(RED) S701 S703 Q708 R727 R731 R730 R771 R726 4.7k Q710 4.7k CN0S5 R736 CN0S3 CN0S4...
  • Page 70: Main Pwb Circuit Diagram [Av-21B116/B] (1/4)(2/4)

    MAIN PWB CIRCUIT DIAGRAM [AV-21B116/B](3/4)(4/4) SHEET 2 MAIN PWB(1/4) SHEET 1 AC110V-AC240V 50Hz/60Hz CN0PW SK351 R365 VA901 TP-47B Y973 Y972 L353 Q353 R362 S901 Y961 Q961 F901 R353 C901 T3.15AL C356 390p R359 IC421 R368 R356 1.8k R961 R962 R348...
  • Page 71: Main Pwb Circuit Diagram [Av-V2160/B] (1/3)

    MAIN PWB CIRCUIT DIAGRAM [AV-V2160/B](1/3) SHEET3 D704 R773 R772 IC704 SPEAKER POWER LED(GREEN) S702 S704 S705 ON TIMER LED(RED) S701 S703 R721 R727 R731 R730 C719 R726 C727 4.7k 1/50 4.7k R703 .1/16 D701 Q708 C721 R736 R749 IC701 .033 4.7k Q709 Q710...
  • Page 72 MAIN PWB CIRCUIT DIAGRAM [AV-V2160/B](2/3)(3/3) SHEET 4 MAIN PWB(1/3) SHEET 3 AC110V-AC240V 50Hz/60Hz CN0PW TP-47B SK351 R365 VA901 Y973 Y972 L353 Q353 R362 S901 Y961 Q961 C356 F901 R353 390p C901 T3.15AL R359 IC421 R368 R356 1.8k R961 R962 R348 LF901 R963 R965...
  • Page 73: Pattern Diagrams

    PATTERN DIAGRAMS MAIN PWB PATTERN [AV-21B116/B] R573 Y001 C925 D921 Y002 R574 R983 C993 D925 J002 W543 R575 C842 C008 R9 35 C571 R802 R982 Q804 CN0S2 C926 W012 W023 R807 R004 R815 C924 C942 R003 C981 W436 R811 C010...
  • Page 74 MAIN PWB, CRT SOCKET PWB PATTERN [AV-V2160/B] R573 Y001 C925 D921 Y002 R574 R983 C993 D925 J002 W543 R575 C842 C008 R9 35 C571 R802 R982 Q804 CN0S2 C926 W012 W023 R807 R004 C924 R815 C942 R003 C981 W436 R811 C010 FRONT R929...
  • Page 75: Voltage Charts

    VOLTAGE CHARTS [AV-V2160/B] [AV-21B116/B] <MAIN PWB> <CRT SOCKET PWB> <MAIN PWB> <FRONT LED PWB> <CRT SOCKET PWB> MODE MODE MODE MODE MODE MODE MODE MODE MODE DC (V) DC (V) DC (V) DC (V) DC (V) DC (V) DC (V)
  • Page 76: Waveforms

    WAVEFORMS [AV-21B116/B] -MAIN PWB- (SHEET1) IC301-10 IC301-11 IC301-12 IC301-14 IC301-36 IC301-40 IC301-42 (1µs) (1µs) 3.5 Vp-p 3.5 Vp-p 4.0 Vp-p 0.35 Vp-p 3.0 Vp-p 0.5 Vp-p 2.5 Vp-p IC301-46 IC701-27 IC701-35 2.5 Vp-p 5.0 Vp-p 5.0 Vp-p (SHEET2) IC421-1 IC421-3...
  • Page 77 [AV-V2160/B] -MAIN PWB- (SHEET1) IC301-10 IC301-11 IC301-12 IC301-14 IC301-36 IC301-40 IC301-42 (1µs) (1µs) 3.5 Vp-p 3.5 Vp-p 4.0 Vp-p 0.35 Vp-p 3.0 Vp-p 0.5 Vp-p 2.5 Vp-p IC301-46 IC701-27 IC701-35 5.0 Vp-p 5.0 Vp-p 2.5 Vp-p (SHEET2) IC421-1 IC421-3 IC421-5 IC421-6 Q521-C Q521-B...
  • Page 78 Victor Company of Japan, Limited Display Category 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama-city, kanagawa-prefecture, 221-8528, Japan (No.YA417) Printed in Japan...

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Av-21b116/bAv-v2160Av-v2160/b