JVC AV-25MXP6/V Main PWB Circuit Diagram AV-29MXP6/V 2/2 Sheet, No.YA4762-172-18No.YA476

Page 54

MAIN PWB CIRCUIT DIAGRAM [AV-29MXP6/V] (2/2) SHEET 6

MAIN PWB(1/2)

SHEET 5

MAIN PWB ASS'Y(2/2) SCW-1647A-H2 [AV-29MXP6/V]

A VCC

A GND

C MUTE

GND

 

 

 

3.3V

3.3V STB

8V

5V

12V

32V

H DRIVE

P ON/OFF

NECK

VDRA+

VDRB-

EW

HFB

PROTECT

ABL

 

 

 

 

 

3.3V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC971

3.3V_STB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R971

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.3V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H_DRIVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C973

C971

P_ON/OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PROTECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C972

 

R421

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5V

10K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R976

 

 

Q422

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

390 P_ON/OFF

 

 

Q421

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC972

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC401

D976

*3

R471

270K

D595

 

x

 

 

 

 

D593

 

 

 

X

 

Q591

 

 

 

X

 

 

 

 

R594

C593

 

 

X

X

 

D591

R592

D592

 

X

X

X

 

C591

 

R593

C592

X

 

X

X

R591

X

FRONT CONTROL PWB ASS'Y SHEET8 CN00W

CN00W

 

Y906

X

 

 

Y905

X

!

C901

 

 

 

 

Y908

X

 

!

Y907

X

 

 

 

 

LF902

 

 

C902 X

CN00D

*

 

 

 

Y909

R901

D901

!

*

*

 

C904

.001

Y910

*

!

C903

!

C905

R902

 

 

K921

 

 

*9

C921

 

 

C927

 

 

X

 

 

C922

C923

R922

390

R921

C906

*

C916

X

!

C991

!

C992

!

T921

C915

D926

*6

R926

22

 

 

 

 

 

 

 

R472

 

 

 

 

 

 

 

C471

10K

 

Y965

 

D977

 

L972

22/50

 

 

 

X

 

 

 

3.3V_STB

 

 

 

 

 

R965

 

 

 

 

 

 

 

C975

 

 

 

 

C422

 

 

 

 

C977

 

 

 

 

 

 

1000/25

 

47/35

 

 

C423

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

.001

 

 

 

 

 

 

 

 

R437

 

 

 

 

 

 

 

 

X

 

 

 

 

 

PROTECT

 

 

R438

 

 

 

IC975

 

 

 

 

1M

C955

 

 

 

 

 

 

 

 

 

!

 

 

 

 

 

 

K955

 

CP955

 

 

 

 

 

C424

*7

 

 

 

 

 

 

 

 

 

 

 

 

 

D975

 

 

 

 

D955

 

 

 

*3

 

 

 

 

 

C960

C962

 

 

 

 

 

 

 

2200/35

0

 

D972

 

D424

 

 

 

 

 

 

 

 

 

 

 

 

 

*3

 

 

 

 

C952

!

 

 

 

 

 

 

K952

 

 

 

 

 

 

 

 

CP952

 

 

 

 

 

 

*7

 

 

 

 

 

 

 

 

 

 

 

 

 

5V

 

 

 

D952

 

 

 

 

 

 

 

 

 

 

C967

C994

R990

 

 

L421

 

 

C957

1000/10

X

X

 

 

 

 

 

 

 

 

 

 

 

2200/10

 

 

 

 

 

 

 

 

 

IC973

 

 

 

 

R440

 

 

 

 

 

 

 

C435

C430

 

 

 

 

 

D973

 

 

 

 

C953

 

 

 

*3

 

C436

 

 

 

 

 

 

 

 

 

 

!

 

 

D971

 

 

 

K953

 

 

 

*3

 

 

 

 

CP953

 

 

 

 

R448

 

*7

 

 

 

 

 

 

 

 

 

 

 

 

12V

 

1

 

D953

*6

 

 

 

 

 

 

 

 

 

 

 

C966

R973

 

 

 

 

 

C958

C980

x

 

 

 

 

 

470/25

100/16

 

X

 

 

 

 

 

 

 

 

 

 

C954

 

 

 

 

 

 

 

 

 

!

 

 

 

 

 

 

K954

 

CP954

 

 

8V

 

 

 

*7

 

 

 

 

 

 

 

 

 

 

 

 

R970

 

 

 

 

D954

*6

 

 

 

 

 

 

 

R473

68K

R427

R411

6.8K

2.2K

R474

220K

C428

100/35

R426 R412

12K 2.2K

D423

C427

1000/35

C431

.1

R434

6.8K

R430

12K

R431

X

R432

R433

3.9

R461

82K

R462L521

Q461

C531

R554

1.8K

D554

D555

 

X

! R551

C553

C554

!

R552

!

T522

C555

!

R533

C551

 

D551

R582

*6

 

82K

D552

*6R583

180K

 

 

D581

C581

R581

 

 

*6

.1

8.2K

C552

 

L530

 

 

 

 

 

 

 

 

D530

! R530

C532

 

 

*6

 

 

 

 

 

10/250

 

R572

 

 

 

R571

C572

R573

 

 

 

100/16

3.3K

 

 

 

C571

 

 

 

 

220/160

 

 

 

 

 

Q571

 

 

 

 

R574

 

 

 

 

18K

 

 

 

 

D571

 

 

 

 

 

Q572

 

 

 

 

*5

 

CN00U

CRT SOCKET

PWB ASS'Y SHEET7 CN00U

CN00X

ADJUSTMENT

CONNECTOR

IC921

 

 

 

 

R923

 

 

D930

 

27K

 

 

*3

 

 

D924

D923

 

D929

 

D932

 

 

 

 

*3

 

 

 

 

 

R929

22

 

 

Q921

R928

 

 

 

 

10K

 

D933

D922

 

 

 

 

 

 

D931

 

 

 

C926

 

 

D925

 

R924

C924

 

 

 

D928D927

D921

*6

C925

R927

2.2K

!

PC901

!

R991 8.2M

!

C993 680p

 

C959

C984

D970

 

X

 

100/35

 

C963

!

 

 

 

 

 

K951

CP951

L951

 

*9

 

 

 

D951

 

 

 

 

CP956

 

 

 

X

C956

 

C951

 

K957

 

 

 

 

X

Q958

R960

22K

R951

 

 

D958

 

2.2K

 

 

 

 

 

 

 

 

R975

 

 

 

IC951

1.2K

R952

R961

 

 

 

 

X

 

 

 

 

 

R953

 

 

 

 

10K

 

 

 

 

R963

C950

 

 

 

0.1/50

 

 

 

3.3K

 

R980

 

 

 

 

 

 

 

 

5.6K

 

D950

 

 

Q957

 

 

 

*1

 

X

 

 

C964

 

 

 

 

X

 

Q951

 

Q952

 

 

*1

 

R959

 

 

*1

 

C969

R957

 

15K

 

 

 

 

X

15K

 

 

 

 

 

R958

 

 

 

 

18K

 

R524

STB

R525

R962

32V

C523

47/35

D962

Q521

R520 C520

STB

H_DRIVE

470

 

R521

100K

D520

X

D524

P_ON/OFF

!

!Q522

T521

 

 

D521

C525

 

R522

C524

C526

 

 

22

 

 

 

!

D522

C528

.022

R523

270

 

 

 

C521

.0033

C522

.022

Y915

Y912

X

Y911

X

Y901

X

Y607

W-E

XY606 X

 

W-B

 

 

K105

 

X

 

 

 

GND

GND

GND

GND

GND

C542

L523

XX

C527

L522

Y501

C582

Y502

C530

R528

C529

 

470

C533D523

X*6

R527

T523

X

Y984

Y983

Y980

Y976

Y975

Y961

Y913 Y914

GND

GND

GND

R575

C573

2.2K

47/35

D957

CN0HV

NOTE) 1. Refer to page 2-34 for voltages of this circuit diagram.

 

c21260001a.001.2/2

 

 

2. Refer to page 2-36 for waveforms of this circuit diagram.

 

 

*

 

 

CN00D

XX X X

DEF YOKE

 

!

R901

 

 

C906

 

 

Y909

X

 

Y910

X

 

(No.YA476)2-172-18(No.YA476)

Page 53 Page 55
Image 54
Page 53 Page 55
Contents AV-29MXP6/V Items Contents AV-21MXP6/V AV-25MXP6/V AV-29MXP6/VAlternate Check Method Safety PrecautionsLeakage Current Check No.YA4761-3Picture Mode Features DVD Picture ModeAuto Signal Detect Cinema SurroundTechninal Information Main MI-COM CPU PIN Function No.YA4761-5Removing the Main PW Board Disassembly Procedure AV-21MXP6/V Removing the Rear CoverWire Clamping and Cable Tying Removing the SpeakerAV-21MXP6/X No.YA4761-7Disassembly Procedure AV-25MXP6/V Removing the Rear Cover AV-25MXP6/V No.YA4761-9Removing the AV Terminal Board Disassembly Procedure AV-29MXP6/V Removing the Rear CoverRemoving the Chassis Chassis Base and Control Base Remove the Rear Cover Remove the 4 screws C as shownFront Side No.YA4761-11Memory IC Replacement MenuRemote Control Direct Operation System Constant SettingSettings of Factory Shipment Button Operation Remote Control Menu Operation Picture SettingService Mode Setting Items Feature SettingInstall Setting VSM PresetSoldering Iron Replacement of Chip ComponentHow to install Chip parts Resistors, capacitors, etc Transistors, diodes, variable resistors, etcAdjustment Items „ Check Items Adjustment PreparationPreset Setting Before Adjustment „ VSM Preset SettingAdjustment Location AV-21MXP6/V, AV-25MXP6/V FrontNo.YA4761-17 Adjustment Location AV-29MXP6/V Main PWB ASS’Y CRT Socket18 No.YA476 Memorize the Adjustment Data Service Mode ItemsSetting Method Release of Service ModeService Mode Flow Chart 20 No.YA47632 ~ +31 Initial Setting Value of Service ModePAL Secam NTSC3 NTSC4 Video No.YA4761-2122 No.YA476 No.YA4761-23 100Hz 300Hz 1kHz 3kHz 8kHz AV-21MXP6/V FunctionMode AV-25MXP6/V Function+11 AV-29MXP6/V Function+12 No.YA4761-25S.CR 32 ~ +31 Compress43 50Hz Others 60Hz LIN 32 ~ +3143 50Hz 50Hz 60HzBright Soft TheaterCool Warm Normal Theater B1 Voltage Adjustment Procedure Check ItemMeasuring Test point Adjustment part Description Instrument High Voltage HV voltmeterAGC Delay PointTuner / if Circuit FocusNtsc V. Position PositionPAL V. Position SizeSide PIN PAL H. SizeNtsc H. Size PAL Side PINNtsc V. Linearity LinearityPAL V. Linearity Corner PINBOW PAL H. BOWNtsc H. BOW Ntsc Trapezium PIN Follow the same to 7 as in PAL Side PINPAL Trapezium PIN Select 8. COR-UPWhite „ Video 2 SET ComponentVideo Circuit Composite White BalanceContrast SUB BrightSUB SUB ColourNtsc 3.58 Tint SUB TintPAL Tint Ntsc 4.43 Tint1. R Drive to 3. B Drive to the values VSM Preset SettingSTANDARD, Soft and Theater Warm and NormalPurity and Convergence „ Purity Adjustment „ Static Convergence Adjustment „ Dynamic Convergence AdjustmentNo.YA4761-41 Self Check Items Indication by the Power LEDSelf Check Functions Outline Self Check Indicating FunctionVPT Schematic Diagrams Copyright 2006 Victor Company of Japan, LimitedIndications on the Circuit Diagram SafetyIndication of Parts Symbol Example Specified Voltage and Waveform ValuesMain PWB Pattern ContentsAV-21MXP6/V, AV-25MXP6/V AV-29MXP6/V 2No.YA476Main PWB No.YA4762-32-4No.YA476Front Control PWB1/2 Main PWB Circuit Diagram AV-21MXP6/V 1/4 2/4 SHEET1 No.YA4762-72-8No.YA476Main PWB Circuit Diagram AV-21MXP6/V 3/44/4 SHEET2 No.YA4762-92-10No.YA476Main PWB Circuit Diagram AV-25MXP6/V 1/4 2/4 Sheet No.YA4762-112-12No.YA476Main PWB Circuit Diagram AV-25MXP6/V 3/44/4 SHEET4 No.YA4762-132-14No.YA476Main PWB Circuit Diagram AV-29MXP6/V 1/2 Sheet No.YA4762-152-16No.YA476Main PWB Circuit Diagram AV-29MXP6/V 2/2 Sheet No.YA4762-172-18No.YA476CRT Socket PWB Circuit Diagram AV-29MXP6/V Sheet No.YA4762-192-20No.YA476Front Control PWB Circuit Diagram AV-29MXP6/V Sheet No.YA4762-212-22No.YA476Bass PWB Circuit Diagram Sheet No.YA4762-232-24No.YA476Front No.YA4762-25 26No.YA476Main PWB Pattern AV-29MXP6/V No.YA4762-272-28No.YA476Bass PWB Pattern Parts Side CRT Socket PWB Pattern AV-29MXP6/VBass PWB Pattern Solder Side No.YA4762-292-30No.YA476Front Control PWB Pattern AV-29MXP6/V No.YA4762-312-32No.YA476Voltage Charts AV-21MXP6/V, AV-25MXP6/V No.YA4762-332-34No.YA476Waveforms AV-21MXP6/V, AV-25MXP6/V No.YA4762-3536No.YA476 Main PWBNo.YA476 Parts List No.YA4763-1Contents Using P.W. Board & Remote Control Unit No.YA4763-3100 V01 L01 101 102 106 103 105 104 T5224No.YA476 Printed Wiring Board Parts List No.YA4763-56No.YA476 No.YA4763-7 8No.YA476 No.YA4763-9 487 5 10No.YA476No.YA4763-11 V01 L01 100 101 102 106 103 105 104 12No.YA476Main P.W. Board Assy SCW-1646A-H2 No.YA4763-1314No.YA476 No.YA4763-15 16No.YA476 No.YA4763-17 18No.YA476 B Assy AV-29MXP6/VV01 L01 100 101 103 DY01 2822 3018 102 40 T522 No.YA4763-19Main P.W. Board Assy SCW-1647A-H2 20No.YA476No.YA4763-21 22No.YA476 No.YA4763-23 CRT Socket P.W. Board Assy SCW-3037A-H2 24No.YA476Bass P.W. Board Assy SCW-6003A-H2 No.YA4763-25Packing Packing Parts List Colour Television Do not allow objects or liquid into the cabinet openings Knowing your TV’s features Main featuresRemote control buttons and basic functions No. PressRemote control buttons and basic functions TV buttons and functions Front of the TVSetting up your TV Turn off the equipment including the TV before connectingSetting up your TV Basic setting for picture Picture ModeColour System Picture Setting White Balance Picture BoosterCompress Advanced setting for pictureAI ECO Sensor ECO/ECO Mode Blue BackOriginal features for picture PIPSound System Basic setting for soundSound Mode BalanceCinema Surround Advanced setting for soundAI Volume EqualizerDVD Sound Mode Auto Signal DetectDVD Picture Mode DVD MenuCustomized setting VIDEO-2 Setting Display BeepTV channel presetting Auto ProgramDelete TV channel presetting CH/CC number Before connecting Additional preparationTroubleshooting Specifications AV-25MXP6Model AV-29B316 AV-29M316 AV-29S356 AV-29B316BK

AV-29MXP6/V, AV-21MXP6/V, AV-25MXP6/V specifications

The JVC AV-25MXP6/V, AV-21MXP6/V, and AV-29MXP6/V are a trio of high-performance CRT televisions that represent a combination of cutting-edge technology and practical design, catering to the diverse needs of home entertainment enthusiasts. These models are characterized by their impressive picture quality, robust build, and user-friendly features, making them a prominent choice during their production era.

One of the key features of these models is their screen sizes, which cater to different room sizes and viewing preferences. The AV-25MXP6/V offers a compact 25-inch display, ideal for smaller living spaces or bedrooms, while the AV-21MXP6/V with its 21-inch screen is perfect for desk setups or as a secondary television. The AV-29MXP6/V, on the other hand, boasts a larger 29-inch display, making it suitable for home theaters or larger family rooms.

JVC is renowned for its superior picture technology, and these models are no exception. They utilize a high-quality CRT screen that provides deep contrast, vivid colors, and sharp details. The picture performance is further enhanced by JVC's proprietary circuitry, including a dynamic contrast system that adjusts brightness and contrast levels based on the content being displayed, resulting in a more immersive viewing experience.

Moreover, these televisions come equipped with several input options, including RF, composite, and S-video inputs, allowing users to connect multiple external devices such as DVD players, game consoles, and VCRs. With built-in tuners, viewers can easily access over-the-air broadcasting, making these models versatile entertainment hubs.

Another noteworthy characteristic is the user-friendly interface that JVC has engineered into the AV-25MXP6/V, AV-21MXP6/V, and AV-29MXP6/V models. The on-screen menu provides quick access to settings and customization options, allowing users to tailor the viewing experience to their preferences, including the ability to adjust color tones and picture settings.

In addition to their functionality, these televisions also sport an elegant design that incorporates a sleek frame and aesthetically pleasing finish, making them a suitable complement to any home décor.

Overall, the JVC AV-25MXP6/V, AV-21MXP6/V, and AV-29MXP6/V models represent a harmonious blend of technology, style, and user-centric features, making them reliable choices for anyone seeking quality CRT televisions for their home entertainment needs. Though newer technologies have since emerged, these models remain a fond memory for many who experienced their remarkable performance.
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