JVC AV-25MXP6/V Main PWB Circuit Diagram AV-21MXP6/V 1/4 2/4 SHEET1, No.YA4762-72-8No.YA476

Page 49

CIRCUIT DIAGRAMS

MAIN PWB CIRCUIT DIAGRAM [AV-21MXP6/V] (1/4) (2/4) SHEET1

ADJUSTMENT

CONNECTOR

 

MAIN PWB ASS'Y (2/4)(FRONT LED)

CN00C

SCW-1645A-H2 [AV-21MXP6/V]

 

 

IC801

 

 

 

POWER LED

 

 

 

IC302

 

 

 

 

 

(RED)

 

 

 

 

 

 

 

 

 

D808

 

 

 

 

 

C808

C806

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

100/16

C807

.1/16

 

 

 

 

 

 

 

 

R822

 

 

 

 

 

 

Y813

 

 

1K

S805

S804

S803

S802

 

 

X

 

 

 

 

 

 

 

 

C317

Y814

R823

 

 

R824

 

 

 

R327

0

 

 

470

 

 

 

39K

10/50

 

X

 

 

 

 

 

 

 

 

 

R825

 

 

 

 

 

 

MAIN PWB(4/4)

(CRT SOCKET)

SHEET2

CN10T

CN00T

J808

S801

VIDEO-3

INPUT

J806

 

J807

 

 

 

 

 

J809

 

R817

 

 

 

X

 

 

 

 

R630

R632

 

 

270

270

 

LC805

D814

 

 

 

*8

 

C825

C826

 

 

SPEAKER

CN00S

 

220

220

220

220

 

 

R764

R765

R762

R763

5V

SDA

ECO IN

PW LED

REMOTE

1.8V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R821

R820

R819

 

R818

CN10A

 

 

 

 

 

 

 

 

 

 

 

470

330

220

 

180

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN00A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S V DET

VDO DET

KEYIN

1.8V

ECO IN

PROTECT

4.5/OTHER

5V

A MUTE 5V

3.58/OTHER

SDA

SCL

PW

S REDUCE

1.8V

PW LED

REMOTE

KEYIN

GND

12V

 

V1.8A

12V

R3

D341

*3

D342

*3

.0015

.0015

 

 

R631

 

 

R633

 

 

Y809

 

1K

 

 

1K

 

 

 

Y810

 

 

 

 

X

 

X

 

 

 

 

 

C831

 

 

 

 

 

 

 

0

 

 

 

 

 

GND

L3

V3

GND

A GND

L AOUT

R AOUT

B MUTE

 

 

STB

3.3V

C615

 

 

C616

 

 

1000/25

 

 

1000/25

 

 

_

 

 

 

 

 

3.3V

 

 

 

 

 

R816

75

MAIN PWB(3/4)

SHEET2

GND

3.3V_STB

8V A_VCC

A_GND

5V

12V

NECK

H_DRIVE

HFB

ABL

EW

P_ON/OFF

VDRA+

VDRB-

PROTECT

3.3V

32V

TU001

 

D706

 

 

C777

C778

 

 

 

 

.1

47/35

 

 

 

 

 

R760

 

 

 

 

 

220

 

 

 

 

 

R761

 

 

 

 

 

220

 

 

IC702

 

 

 

 

 

R984

R983

R982

R981

 

 

47K

3.9

47K

3.9

 

 

 

 

*1

Q981

 

 

 

 

Q982

 

R796

R985

Q984

 

 

 

10K

 

 

 

4.7K

*1

 

 

 

 

 

 

Q983

 

Q704

 

 

 

 

 

*1

R986

 

 

 

 

 

4.7K

 

 

 

 

K103

 

 

L001

X

K101

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R101

 

 

C101

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

.0047

L003

 

 

 

 

C111

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

220/16

 

 

 

 

 

 

C106

 

 

 

 

 

CF101

 

 

 

 

 

 

 

C110

 

 

 

 

18p

R005

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

.1

 

 

 

 

 

 

75

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L101

 

 

 

 

 

 

Y008

C001

 

C002

10/50

 

 

6.8K

R104

180

 

 

4.7K

 

 

 

 

X

.01

 

 

 

 

 

 

 

 

 

 

L002

 

 

 

 

 

 

 

 

 

 

 

R107

 

 

 

 

 

 

 

 

 

C004

 

R102

 

 

 

 

 

D101

 

 

 

 

 

 

 

 

470/16

 

 

 

 

 

 

 

 

 

 

 

 

R001

C003

 

 

 

 

 

 

 

 

C109

 

 

 

2.2K

2.2K

 

C107

220

 

.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

.0047

 

 

 

 

.01

C007

56p

R002

220

 

2.7K

 

 

Q101

 

 

 

 

R109

R110

 

 

C008

56p

 

 

 

 

 

 

22

 

D102

 

 

 

 

C005

 

 

 

R003

3.9K

 

R103

 

R105

 

 

 

Y004

Q102

*5

 

 

X

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y003

.0022

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C103.0047

 

C10410/50

R106100

C102.0047

R1082.2K

 

Q103

*5

 

 

 

 

R004

 

C006

33/50

 

 

 

 

 

 

C108

.0047

C105

.0047

27K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCL

 

 

 

D707

 

R794

 

Q706

 

 

 

5V

*3

 

2.2K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C792

 

 

 

 

 

 

 

 

 

 

0.1

 

 

 

SCL0

 

Q708

 

 

Q707

Q705

 

 

 

 

 

 

*1

 

 

 

 

*2

 

 

 

 

 

 

 

 

SDA0

 

 

 

 

 

 

 

 

 

 

 

 

R795

 

 

 

R783

 

R976

 

 

 

 

 

10K

 

 

 

100K

 

 

 

 

1K

 

 

 

 

 

 

 

 

 

3.3V_STB

 

 

 

 

 

 

 

 

 

Q791

 

 

 

 

 

 

 

 

R759

3.3K

*1

 

PW

 

 

 

 

 

 

 

 

 

 

SCL0

 

 

 

 

 

 

 

 

 

 

SDA0

 

 

 

 

 

 

 

 

C793

 

 

 

 

 

 

 

R793

100

 

10/50

 

 

 

R790

 

 

 

 

 

 

1K

 

 

 

 

 

P_ON/OFF

 

 

 

 

 

D713

 

 

 

V1.8A

 

 

 

 

 

 

 

 

 

 

1.8V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C701

 

 

 

 

1.8V

 

 

 

 

 

.22

 

 

 

 

 

 

 

 

 

 

C702

 

 

D982

 

 

 

 

 

 

 

.22

 

 

 

 

 

 

 

 

 

 

 

 

D981

CONT

R792

L703

470/10

 

 

 

 

 

 

 

33

*4

 

 

 

 

 

 

 

 

 

C704

C790

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C703

 

.1

27p

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8V

 

 

 

 

 

 

 

 

 

A_VCC

 

 

 

 

 

 

 

 

 

 

5V

 

 

 

 

 

 

 

 

 

A_GND

 

 

 

C705

 

 

 

 

 

 

 

 

 

7p

 

 

 

 

 

5V

 

C706

 

 

 

 

 

 

 

L701

 

 

 

 

 

 

 

 

7p

 

 

 

 

 

 

12V

 

 

 

 

X701

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NECK

 

 

 

 

 

 

 

 

 

H_DRIVE

 

 

 

R756

10K

 

 

 

 

NECK

 

 

 

 

 

 

 

 

 

 

HFB

 

C785

 

X

 

 

 

 

 

 

CONT

 

 

 

 

 

 

 

 

 

 

ABL

 

L718

 

 

 

C784

 

 

 

 

 

 

 

 

 

 

 

 

 

EW

 

 

 

 

 

.47/50

 

 

 

P_ON/OFF

C707

.1

 

C709

 

 

 

 

 

 

 

.01

 

 

 

 

 

VDRA+

 

 

 

C710

R701

 

 

 

VDRB-

 

 

 

6800p

12K

 

 

 

C708

C711

 

 

 

 

 

 

 

 

 

 

 

 

PROTECT

47/16

2.2/50

 

 

 

 

 

 

 

3.3V

 

 

 

 

 

 

 

 

 

 

 

 

C712

.22

 

 

 

 

 

4.5/OTHER

 

C713

10/50

 

 

 

 

 

 

 

 

 

 

 

3.58/OTHER

 

 

 

 

 

 

 

 

 

 

 

 

C714

.022

 

 

 

 

 

EW

 

R702

X

 

 

 

 

 

 

 

 

C715

.001

 

 

 

SF102

 

VDRB-

 

R703

 

100

 

 

 

 

 

 

 

 

C716

 

.001

 

 

 

 

 

 

VDRA+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R704

100

 

 

SF101

 

 

 

 

 

 

C718

 

 

*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R705

 

 

 

 

 

 

 

 

 

 

39K

 

 

 

 

 

 

C719

.01

 

 

 

 

 

 

 

 

R706

220

 

 

 

 

 

 

 

C720

.001

 

 

 

 

 

 

 

R707

22K

 

 

 

 

 

 

 

R708

10K

 

 

 

 

 

 

 

 

 

 

 

R709

C721

X

 

 

 

 

 

 

 

 

1M

 

 

 

 

 

 

 

 

D701

C794

 

 

 

SCL

 

 

 

 

 

*3

X

 

 

 

 

 

 

 

 

 

 

R710

 

 

 

SDA

 

 

 

 

 

 

 

 

 

D714

C775

220/16

R758

3.3K

R757

4.7K

 

 

C776

.1

1

 

1

 

 

 

 

C723

 

C724

 

 

 

 

5.6K

10K

5.6K

10K

C795

C725

.1

R711

R712

R713

R714

 

 

 

 

R755

 

 

 

R753

 

 

 

R750 10K

 

 

 

 

 

 

 

 

 

 

 

 

 

W-A1

 

 

 

R740 15K

 

 

1.2K

 

 

R789 X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.2K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q612

*1

 

R787

4.7K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*3

 

.22

 

22/50

C770 .1

 

 

 

 

 

.22

 

3.3K

 

3.3K

220

4.7K

*3

*3

 

 

 

 

 

1/50

 

D709

 

C772

 

C771

R747 100

 

 

1K

R744C768

 

R745

 

R743

R741

R785

D711

D712

C767 .22

R736 100

R777 100

R776

15K

C783

R754

220

R752

100

R751

100

R749

1K

R748

2.7K

R771

220

R742

220

IC701

*

MAIN MICRO COMPUTER/TELETEXT DECODE/

IF VIDEO RGB SYNC DEF PROCESS

C727

3300p

 

 

 

 

 

 

 

1

 

 

C782 1

R738

100

C736

.01

C744

.1

 

 

R737

100

 

 

 

 

C739

1

R739

100

D710

*8

 

 

 

 

R715

390

C729

2.2/50

 

C732

2.2/50

C781

 

 

D702

*8

C745

.1

C737

.1

C738

1

C740

.1

C743

10/50

C742

10/50

C726

10/50

C728

.1

 

 

C730 22/50

C731 .1

L702

C734 .1

R772 5.6K

R773 10K

5.6K

R775 10K

C735 .1

 

 

 

R786

75

 

D703

*8

 

5.6K

 

R717 10K

R718 5.6K

10K

R768 D704

*8

R769 C741

.1

 

 

 

 

 

 

R774

 

 

 

 

 

R716

 

R719

100

0

R770

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y707

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C766

.22

C764

X

 

 

C763

 

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

C761

 

 

C762

 

 

 

 

 

 

.1

 

 

100/16

 

 

 

 

 

 

 

 

C760

 

 

 

 

 

 

 

 

 

 

.22

 

 

 

 

 

 

 

 

 

 

 

C758

 

 

 

 

 

 

 

 

 

 

.22

 

 

 

 

 

 

 

 

 

R735

 

 

 

 

 

 

 

 

 

 

 

100

 

 

 

 

 

 

 

 

 

 

 

R734

 

 

D715

 

 

 

 

 

 

 

100

 

 

*3

 

 

 

 

 

 

 

 

R733

 

D716

 

 

 

 

 

 

 

 

100

 

*3

 

 

 

 

 

 

 

 

 

 

D717

 

 

R720

 

 

 

 

 

R732

 

 

 

68K

 

 

 

 

 

 

 

*3

 

 

 

 

 

 

 

 

 

1K

 

C717

 

 

R721

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C757

 

1/50

 

 

47K

 

 

 

 

 

 

560p

 

 

 

 

 

 

 

 

 

 

 

 

 

C756

R731

D708

 

 

 

 

 

 

 

1K

*3

 

 

 

 

 

 

 

.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C755

L706

 

 

 

 

 

 

 

 

 

 

10/50

*4

 

 

 

 

 

C779

 

C753

C754

 

 

 

 

 

 

10/50

 

.1

 

.1

 

 

 

 

 

 

R779

100

 

D753

 

 

 

 

 

 

 

 

 

 

 

*8

 

 

 

 

 

 

R780

100

C752

.1

 

 

 

 

 

 

 

 

 

C751

.1

 

 

 

 

 

 

R781

100

 

 

 

 

 

 

 

 

 

 

 

 

 

D751

 

 

 

 

 

 

R782

1.2K

 

 

*8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R729

4.7K

 

 

 

 

 

 

 

 

 

 

 

C780

 

 

 

 

 

 

 

 

 

 

 

.1

 

 

 

 

 

 

 

 

 

 

C750.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C786

 

 

 

 

 

 

C749.1

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

C787

 

 

 

 

 

 

C748.1

 

 

 

X

 

 

 

 

 

 

 

C788 X

 

 

 

 

 

 

 

 

C746

 

 

 

 

 

L716

 

 

 

 

 

.1

 

 

 

 

 

*4

 

 

 

 

 

 

R728

100

 

 

 

 

 

 

 

 

 

 

R727

560

 

 

 

 

 

 

R726

27K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R725

 

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

R724

X

 

Q702

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

R778

X

 

 

 

 

 

 

 

 

 

 

 

R722

 

R723

 

 

 

 

 

 

 

 

X

 

 

X

 

 

 

 

 

 

 

 

 

 

 

5V

HFB

H_DRIVE

V

U

Y

D343

 

*3

 

 

L301

 

 

 

 

 

 

C304

 

 

 

10/50

 

 

L305

 

 

 

 

 

C310

 

 

 

10/50

 

 

R309

220

 

 

R312

220

 

 

L302

 

 

 

 

C306

 

 

C307

0.01

10/50

 

 

4.7K

 

R311

4.7K

R310

 

 

R314

 

*1

Q305

 

22K

 

 

 

 

 

 

 

 

Q306

*1

 

 

R313

 

 

 

 

82K

 

 

 

 

R307

22K

K701

ABL

 

10K

R617

R618

X

C305

0.01

C311

0.01

C318

27p

X301

R308 33K

C302

27P

IC601

Q341

*2

Y942

Y941

X

 

C341

100/16

D301

R319

*3

4.7K

 

C314

 

IC301

27P

 

C303

10K

 

R317

C602

10/50

D602

X

C611 X

R344

22

D345

*3

10K

10K

R316

R315

L_AOUT

C605

.22

R961

10KY909C1 X

5V S_V_DET

Y912

 

 

 

 

 

 

12V

 

 

 

 

 

 

SCL

 

 

 

 

 

 

Y1/CVBS1

 

 

 

 

 

 

SDA

 

 

 

 

 

 

W-C

 

 

 

 

 

 

GND

 

 

 

 

 

 

5V

 

 

 

 

 

 

VDO_DET

 

L304

 

 

 

 

 

 

 

 

 

 

 

L1

 

 

 

 

 

 

R1

R320

3.3K

R321

4.7K

C316

100/16

GND

C315

 

 

 

 

 

 

0.047

 

 

 

R318

CVBSO/PIP

 

 

 

 

 

 

 

Q307

4.7K

 

 

 

 

*2

 

 

 

 

C313 C312

0.0110/50

 

 

 

V2/Y

 

 

L306

GND

 

 

 

 

 

 

PB

C309

C308

L303

GND

0.01

10/50

 

 

 

 

 

PR

 

 

V

GND

 

 

Y

 

 

 

U

 

 

 

 

L2

 

 

 

R2

 

 

NECK

 

 

 

PB

GND

 

 

GND

 

 

 

 

 

V2/Y

 

 

 

PR

 

 

Y943

 

BASS

X3.3V_STB

3.3V

A_GND

Y944

5V

V_OUT

L_OUT

GND

R_OUT

R AOUT

BASS

S REDUCE

OFF MUTE

 

 

 

D605

 

 

 

X

 

D604

 

 

X

 

 

 

C614

X

W-A

 

 

 

 

 

J801

 

W-C1

 

 

 

 

 

 

C827

Y801

R801

Y819

 

 

0

X

 

75

BW

 

 

 

Y802

 

 

 

 

 

X

 

 

 

LC801

 

 

 

 

 

 

 

 

D817

 

 

 

 

 

 

*8

 

 

 

 

C821

 

 

 

 

 

 

 

 

 

C822

 

 

W-G

W-G1

 

 

 

C828

 

 

 

 

R804

 

0

Y803

X

 

 

 

 

75

 

LC802

 

 

 

 

 

 

Y804

D810

 

 

C829

X *8

 

 

 

0

Y805

X

R805

 

 

 

 

 

 

LC803

 

 

 

75

J802

 

 

 

 

 

 

 

Y806

X

 

 

 

 

 

 

D811

 

 

C830

 

 

*8

 

 

 

0

 

 

 

 

 

 

 

LC804

 

 

 

 

 

 

 

 

 

 

R806

 

 

 

 

 

 

75

 

 

 

 

D812

 

 

 

 

 

*8

 

 

 

 

C823

 

 

 

 

J803

 

.0015

 

 

 

 

 

 

 

 

 

C824

 

 

 

 

 

 

.0015

 

 

 

 

 

 

 

 

J805

 

 

 

 

 

 

X

 

 

 

R807

C804

 

 

 

 

 

100

 

 

 

 

 

 

470/16

 

 

R809

 

 

 

 

 

 

220

 

 

 

 

R815

 

 

 

 

 

 

 

 

 

 

 

 

75

 

 

Q801

 

 

D813

J804

 

 

 

 

 

*8

 

 

 

C809

 

 

R810 390

R811

 

 

X

 

C802

82K

 

 

 

10/50

 

 

 

C810

 

C803

R812

 

 

 

X

 

10/50

390

R813

 

 

 

 

 

 

 

 

 

 

 

 

82K

 

 

 

 

Q803

 

 

 

 

 

 

*6

 

 

 

 

 

 

 

 

Q804

 

 

Q805

 

 

 

*6

 

 

 

 

 

 

 

 

*2

 

R814

 

 

 

 

 

100K

 

 

VIDEO-1

S-VIDEO

INPUT

VIDEO-2

COMPONENT VIDEO INPUT

OPEN

OUT PUT

ABL

L3

R3

L OUT

R OUT

8V

5V

V OUT

L1

R1

V3

V2/Y

L2

R2

Y1/CVBS1

C1

A L

A R

CVBSO/PIP

 

R601

P_R

3K

R637 0

10K

X

C603 .22

c21244001a.001.1/2

C722

R767

5V

3.3V

3.3VSTB

A L

A R

12V

SCL

SDA

GND

A B

P R

P L

GND

BMUTE

GND

ON/OFFP

A VCC

12V

5V

OFFMUTE

 

R766

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q701

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

MUTE

P L

A_B

X

 

R602

 

A_

 

 

3K

R638 X

R639 0

D610 *3

R604

R605

 

C604

.22

C612 X

 

R619

X

R606

2.2

R625 X

C606

.22

R607

2.2

D606

X

 

R640

1K

 

 

 

 

 

 

 

CF702

CF701

 

 

 

Y711

C773

Y722

 

X

X

 

 

 

 

 

 

 

 

 

 

.1

 

 

 

 

 

 

 

Y710

 

Y721

 

 

 

 

 

 

BW

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y709

 

Y720

 

 

 

 

 

 

Y708

 

Y718

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

Y706

 

Y717

 

 

 

 

K702

 

 

 

 

 

 

 

 

 

 

Y705

 

Y716

 

Y968

 

 

K651

 

 

 

 

 

 

 

 

 

 

Y704

 

Y715

 

Y962

 

 

 

 

 

 

 

 

X

 

 

K105

 

Y703

 

Y714

 

Y961

 

 

 

 

 

 

X

 

X

 

 

K104

 

Y702

 

Y713

 

Y824

 

 

 

 

X

 

 

 

X

 

 

K102

 

Y101

 

Y712

 

Y812

 

 

 

 

 

 

X

 

X

 

GND

GND

GND

GND

GND

GND

GND

GND

 

NOTE) 1. Refer to the part list for the part number of IC701 and IC702.

2.Refer to page 2-33 for voltages of this circuit diagram.

3.Refer to page 2-35 for waveforms of this circuit diagram.

Y963

X

Y964

Y610

X

Y611

X

CN00M

BASS PWB

SHEET9

CN00M

C662

 

 

 

 

 

 

 

 

 

10/50

D607

*3

 

 

 

 

 

 

 

 

 

 

 

10K

R612 100K

R613 X

R614 100K

R615 X

 

 

 

 

R611

100/16

 

 

 

 

D603

 

Q601

 

C610

 

 

 

 

*3

 

*2

 

 

 

 

 

 

 

C607

 

 

 

Q602

 

 

 

 

 

 

 

R649

*2

 

 

 

 

 

220/16

 

 

 

 

Q603 *6

Q604 X

Q605 *6

Q606 X

 

 

 

1K

 

 

 

 

R609

 

R610

 

C608

 

27K

C609

100K

 

 

 

 

 

220/16

 

 

33/50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

!

 

 

 

 

 

 

 

D608

D609

 

 

 

 

 

 

 

X

X

CP650

 

 

 

 

 

 

 

 

 

 

 

 

 

R623

R620

 

 

 

 

 

 

 

 

33K

10K

R621

 

 

 

 

 

 

 

 

 

2.2K

 

 

 

 

 

 

R622

Q607

 

 

 

 

 

 

 

 

10K

*1

Q608

 

 

 

 

 

 

 

 

 

*1

 

 

 

 

 

 

 

 

 

 

C613

 

C617

 

 

 

 

R624

 

 

10/50

 

X

 

 

 

 

68K

 

 

 

 

 

 

R634

R635

R636

390

X

390

Q609 *6

Q610 X

Q611 *6

 

C661

 

 

100/16

 

IC701

Refer to

 

NOTE

SF101

 

MAIN PWB ASS'Y(1/4) SCW-1645A-H2 [AV-21MXP6/V]

(No.YA476)2-72-8(No.YA476)

Page 48 Page 50
Image 49
Page 48 Page 50
Contents AV-29MXP6/V AV-21MXP6/V AV-25MXP6/V AV-29MXP6/V Items ContentsLeakage Current Check Safety PrecautionsAlternate Check Method No.YA4761-3Auto Signal Detect Features DVD Picture ModePicture Mode Cinema SurroundNo.YA4761-5 Techninal Information Main MI-COM CPU PIN FunctionWire Clamping and Cable Tying Disassembly Procedure AV-21MXP6/V Removing the Rear CoverRemoving the Main PW Board Removing the SpeakerNo.YA4761-7 AV-21MXP6/XDisassembly Procedure AV-25MXP6/V Removing the Rear Cover No.YA4761-9 AV-25MXP6/VRemoving the Chassis Chassis Base and Control Base Disassembly Procedure AV-29MXP6/V Removing the Rear CoverRemoving the AV Terminal Board Remove the Rear Cover Remove the 4 screws C as shownNo.YA4761-11 Front SideMenu Memory IC ReplacementSettings of Factory Shipment Button Operation System Constant SettingRemote Control Direct Operation Remote Control Menu Operation Picture SettingInstall Setting Feature SettingService Mode Setting Items VSM PresetHow to install Chip parts Resistors, capacitors, etc Replacement of Chip ComponentSoldering Iron Transistors, diodes, variable resistors, etcPreset Setting Before Adjustment Adjustment PreparationAdjustment Items „ Check Items „ VSM Preset SettingFront Adjustment Location AV-21MXP6/V, AV-25MXP6/VNo.YA4761-17 Main PWB ASS’Y CRT Socket Adjustment Location AV-29MXP6/V18 No.YA476 Setting Method Service Mode ItemsMemorize the Adjustment Data Release of Service Mode20 No.YA476 Service Mode Flow ChartPAL Secam NTSC3 NTSC4 Video Initial Setting Value of Service Mode32 ~ +31 No.YA4761-2122 No.YA476 No.YA4761-23 Mode AV-21MXP6/V Function100Hz 300Hz 1kHz 3kHz 8kHz AV-25MXP6/V Function+12 AV-29MXP6/V Function+11 No.YA4761-2543 50Hz Others 60Hz CompressS.CR 32 ~ +31 LIN 32 ~ +3150Hz 60Hz 43 50HzTheater Bright SoftCool Warm Normal Theater Measuring Test point Adjustment part Description Instrument Adjustment Procedure Check ItemB1 Voltage High Voltage HV voltmeterTuner / if Circuit Delay PointAGC FocusPAL V. Position PositionNtsc V. Position SizeNtsc H. Size PAL H. SizeSide PIN PAL Side PINPAL V. Linearity LinearityNtsc V. Linearity Corner PINPAL H. BOW BOWNtsc H. BOW PAL Trapezium PIN Follow the same to 7 as in PAL Side PINNtsc Trapezium PIN Select 8. COR-UPVideo Circuit „ Video 2 SET ComponentWhite Composite White BalanceSUB SUB BrightContrast SUB ColourPAL Tint SUB TintNtsc 3.58 Tint Ntsc 4.43 TintSTANDARD, Soft and Theater VSM Preset Setting1. R Drive to 3. B Drive to the values Warm and NormalPurity and Convergence „ Purity Adjustment „ Dynamic Convergence Adjustment „ Static Convergence AdjustmentNo.YA4761-41 Self Check Functions Outline Indication by the Power LEDSelf Check Items Self Check Indicating FunctionVPT Copyright 2006 Victor Company of Japan, Limited Schematic DiagramsIndication of Parts Symbol Example SafetyIndications on the Circuit Diagram Specified Voltage and Waveform ValuesAV-21MXP6/V, AV-25MXP6/V AV-29MXP6/V ContentsMain PWB Pattern 2No.YA476No.YA4762-32-4No.YA476 Main PWBFront Control PWB1/2 No.YA4762-72-8No.YA476 Main PWB Circuit Diagram AV-21MXP6/V 1/4 2/4 SHEET1No.YA4762-92-10No.YA476 Main PWB Circuit Diagram AV-21MXP6/V 3/44/4 SHEET2No.YA4762-112-12No.YA476 Main PWB Circuit Diagram AV-25MXP6/V 1/4 2/4 SheetNo.YA4762-132-14No.YA476 Main PWB Circuit Diagram AV-25MXP6/V 3/44/4 SHEET4No.YA4762-152-16No.YA476 Main PWB Circuit Diagram AV-29MXP6/V 1/2 SheetNo.YA4762-172-18No.YA476 Main PWB Circuit Diagram AV-29MXP6/V 2/2 SheetNo.YA4762-192-20No.YA476 CRT Socket PWB Circuit Diagram AV-29MXP6/V SheetNo.YA4762-212-22No.YA476 Front Control PWB Circuit Diagram AV-29MXP6/V SheetNo.YA4762-232-24No.YA476 Bass PWB Circuit Diagram SheetNo.YA4762-25 26No.YA476 FrontNo.YA4762-272-28No.YA476 Main PWB Pattern AV-29MXP6/VBass PWB Pattern Solder Side CRT Socket PWB Pattern AV-29MXP6/VBass PWB Pattern Parts Side No.YA4762-292-30No.YA476No.YA4762-312-32No.YA476 Front Control PWB Pattern AV-29MXP6/VNo.YA4762-332-34No.YA476 Voltage Charts AV-21MXP6/V, AV-25MXP6/VNo.YA4762-35 Waveforms AV-21MXP6/V, AV-25MXP6/VMain PWB 36No.YA476No.YA476 No.YA4763-1 Parts ListContents No.YA4763-3 Using P.W. Board & Remote Control Unit106 103 105 104 T522 100 V01 L01 101 1024No.YA476 No.YA4763-5 Printed Wiring Board Parts List6No.YA476 No.YA4763-7 8No.YA476 No.YA4763-9 10No.YA476 487 5No.YA4763-11 12No.YA476 V01 L01 100 101 102 106 103 105 104No.YA4763-13 Main P.W. Board Assy SCW-1646A-H214No.YA476 No.YA4763-15 16No.YA476 No.YA4763-17 B Assy AV-29MXP6/V 18No.YA476No.YA4763-19 V01 L01 100 101 103 DY01 2822 3018 102 40 T52220No.YA476 Main P.W. Board Assy SCW-1647A-H2No.YA4763-21 22No.YA476 No.YA4763-23 24No.YA476 CRT Socket P.W. Board Assy SCW-3037A-H2No.YA4763-25 Bass P.W. Board Assy SCW-6003A-H2Packing Packing Parts List Colour Television Do not allow objects or liquid into the cabinet openings Main features Knowing your TV’s featuresNo. Press Remote control buttons and basic functionsRemote control buttons and basic functions Front of the TV TV buttons and functionsTurn off the equipment including the TV before connecting Setting up your TVSetting up your TV Picture Mode Basic setting for pictureColour System Picture Booster Picture Setting White BalanceAI ECO Sensor ECO/ECO Mode Advanced setting for pictureCompress Blue BackPIP Original features for pictureSound Mode Basic setting for soundSound System BalanceAI Volume Advanced setting for soundCinema Surround EqualizerDVD Picture Mode Auto Signal DetectDVD Sound Mode DVD MenuCustomized setting Beep VIDEO-2 Setting DisplayAuto Program TV channel presettingDelete TV channel presetting CH/CC number Additional preparation Before connectingTroubleshooting AV-25MXP6 SpecificationsModel 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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