JVC AV-21L31ME, AV-25L31ME Diagram

AV-21L31/ME

AV-21L31 AV-25L31

AV-25L31/ME

q

NOTE ON USING CIRCUIT DIAGRAMS

STANDARD CIRCUIT DIAGRAM

1. SAFETY

The components identified by the symbol and shading are critical for safety. For continued safety replace safety critical components only with manufactures recommended parts.

2. SPECIFIED VOLTAGE AND WAVEFORM VALUES

The voltage and waveform values have been measured under the following conditions.

(1) Input signal : Color bar signal (2)

Setting positions of each knob/button and variable resistor

: Original setting position when

shipped (3) Internal resistance of tester : DC 20kØ/V (4) Oscilloscope sweeping time : H ⇒ 20µS/div

:V ⇒ 5mS/div : Others ⇒ Sweeping time is

specified.

(5) Voltage values : All DC voltage values

9Since the voltage values of signal circuit vary to some extent ac-

cording to adjustments, use them as reference values.

3. INDICATION OF PARTS SYMBOL [EXAMPLE]

• In the PW board : R1209

→

R209

Type

•

No indication : Ceramic capacitor MY : Mylar capacitor MM : Metalized mylar capacitor PP : Polypropylene capacitor MPP : Metalized polypropylene capacitor MF : Metalized film capacitor TF : Thin film capacitor BP : Bipolar electrolytic capacitor TAN : Tantalum capacitor

(3) Coils

No unit : [µH] Others : As specified

(4) Power Supply

:B1

: B2(12V)

:9V

:5V

9Respective voltage values are indicated

(5) Test point

: Test point

: Only test point display

4. INDICATIONS ON THE CIRCUIT DIAGRAM

(1) Resistors

Resistance value

•

No unit : [Ø] k:[kØ] M:[MØ] Rated allowable power

•

No indication : 1/16 [W] Others : As specified Type

•

No indication : Carbon resistor OMR : Oxide metal film resistor MFR : Metal film resistor MPR : Metal plate resistor UNFR : Non-Flammable resistor FR : Fusible resistor

9Composition resistor 1/2 [W] is specified as 1/2S or Comp.

(2) Capacitors

Capacitance value

•

1 or higher : [pF] less than 1 : [µF] Withstand voltage

•

No indication : DC50[V] AC indicated : AC withstand voltage [V] Others : DC withstand voltage [V]

9 Electrolytic Capacitors

47/50[Example] : Capacitance value [µF]/withstand voltage[V]

(6) Connecting method

: Connector

: Wrapping or soldering

: Receptacle

(7) Ground symbol

: LIVE side ground

: ISOLATED(NEUTRAL) side ground

: EARTH ground

: DIGITAL ground

5. NOTE FOR REPAIRING SERVICE

This model’s power circuit is partly different in the GND. The difference of the GND is shown by the LIVE : ( ) side GND and the ISOLATED(NEUTRAL) : ( ) side GND. Therefore, care must be taken for the following points.

(1) Do not touch the LIVE side GND or the LIVE side GND and the

ISOLATED(NEUTRAL) side GND simultaneously. If the above caution is not respected, an electric shock may be caused. Therefore, make sure that the power cord is surely removed from the receptacle when, for example, the chassis is pulled out.

(2) Do not short between the LIVE side GND and ISOLATED(NEUTRAL)

side GND or never measure the LIVE side GND and ISOLATED(NEUTRAL) side GND at the same time with a measuring apparatus ( oscilloscope, etc.). If the above precaution is not respected , a fuse or any parts will be broken.

Since the circuit diagram is a standard one, the circuit and cir-

•

cuit constants may be subject to change for improvement without any notice.

Mar. 2002 No. 51908

AV-21L31 AV-25L31

SEMICONDUCTOR SHAPES

TRANSISTOR

TOP VIEWBOTTOM VIEW FRONT VIEW

CHIP TR

E

C

B

ECB

EC

B

(G)(D)(S)

ECB

C

B

E

IC

CHIP IC

TOP VIEWBOTTOM VIEW FRONT VIEW

OUT

E

IN

IN E OUT

N

1

N

1N

TOP VIEW

1

N

1N

2-2 No.51908

BLOCK DIAGRAM

AV-21L31 AV-21L31 AV-25L31 AV-25L31

J801

VIDEO-1

INPUT

J802,J803

COMPONENT

(VIDEO-2)

INPUT

J804

OUTPUT

J771-J773 FRONT IN (VIDEO-3)

TU001

TUNER

VIDEO

AUDIO L/MONO

AUDIO R

V/Y

B

C

R

AUDIO L/MONO

AUDIO R

VIDEO OUT

AUDIO L

AUDIO R

VIDEO

AUDIO L/MONO

AUDIO R

SCL SDA

IF

43

44

42

19

MAIN PWB

28

SF101

FILTER

SF102

FILTER

29,30

SCL SDA

7

V1-V

8

V1-L

10

V1-R

3

V2-Y

1

Y2-V

2

V2-L

4

V2-R

37

Vout2

36

Lout2

35

Rout2

V3-V

V3-L

V3-R

Yin1

Cout1

Yout1

IC801

VIDEO SW

MTV-V

MTV-R

MTV-L

Rout1

Vout1

Lout1

25

27

C

13

15

14

26

24

23

Q111 Q109

BUF

IC702

EEPROM

B

R

5,6

CF106

29

23

24

2,3

62,63

43

42

47

48

46

TRAP

SIF IN1

SIF IN2

IF IN1

IF IN2

IC701

V/C DEF.

PROCESSOR

SCL,SDA

SCL1 SDA1

CIN

CVBS/YIN

Y

U

V

7

ROUT

GOUT

BOUT

QSS OUT

VDRB(-)

VDRA(+)

HOUT

IF VOUT

10, 54

BUF

51

52

53

35

21,22

33

38

R

G

B

SCL

BUF

Q150

SDA

2

IC601

MULTI SOUND

PROCESSOR

40 41

26,27

30,31

L, R

L_VOL, R_VOL

IC665

FILTER

5

2

IC650

AUDIO AMP

7

12

MAIN (CRT SOCKET)

IC351

VIDEO AMP

J770

HEADPHONE

JACK

SP

R

V01

L

AC IN

VOL+

VOL- CH+ CH- MENU

REMOCON RECEIVER

S901

POWER SW

POWER

LED

F901

No.51908 2-3 2-4 No.51908

KEY_IN

REMOTE, LED

D901 RECT

IC901

POWER

REG

T901

SW

TRANSF.

PC901

VOLTAGE

FEEDBACK

IC951

ERROR

AMP

IC972

3.3V REG

IC974

REG

L951

IC401

VERT OUT

Q522

H. OUT

3.3V_STB

5V

8V

9V

32V

B1

T551

FBT

FOCUS1

SCREEN

EHV

V

DY01 DEF YOKE

H

CIRCUIT DIAGRAMS

PWB CIRCUIT DIAGRAM (1/3)

MAIN

AV-21L31 AV-25L31

QNN0282-003

FRONT INPUT (VIDEO 3)

QNN0282-002

QNN0282-001

VIDEO1 INPUT

QNN0349-002

COMPONENT (VIDEO 2) INPUT

QNN0348-001

OUTPUT

TO SPEAKER

-

+

-+

R

L

R

L

CN001

QGA2501C5-04Z

J770

QNS0155-001

HEADPHONE JACK

J771

J772

J773

J802

J803

J801

QNN0349-001

V1

L1

R1

V2/Y

J802

Cb

Cr

L2

R2

J804

QNN0349-001

Vout

J804

Lout

J804

Rout

NC

R

L

GND

R770

QRE121J-271Y

R772

QRE121J-271Y

R774

X

R801

X

YC

DTC323TK-X

IC801

IC801 IC801

R805 75

X

Y802

X

Y803

Y801

X

R836

75

R808

82k

R810

Q802

1.2Vp-p(H

2.1Vp-p(H

R802

X

R804

75

C801

10/50

R806

75

X

Y804

C802

R807

10/50

75

Q804

*7

BUFFER

4.4V

C822

470/16

R809

390

R811

390

Q801

82k

DTC323TK-XDTC323TK-X

7

)

27

)

R771

1K

1KR773

D801

*

D802

4

*

9.0V

5.0V

R837 100

R838 120 QRK126J-121X

C803

10/50

C804

10/50

R812 100K

IC801

2.2Vp-p(H

MAIN PWB ASS'Y(1/3 SCH-1501A-M2(AV-21L31

SCH-1502A-M2(AV-25L31

DIFFERENCE LIST(PA RT S

SCH-1502A-M2

NOT USEDSCH-1501A-M2

27

R803

CN00A

33k

C823

100/16

Q803

Y2

L2

R2

2

*

A_OUT_R

A_OUT_L

CN01A

AUDIO_L

AUDIO_R

VOUT2

LOUT2

D803

X

ROUT2

D804

X

W-B2 W-B1

CHT32KK0-10-N

23

)

37

)

B.MUTE

A.GND

VIDEO

CB

CR

R769

ECO

REMOTE

LED

KEYIN

WJQ0003-002A CN00B

R665

C666

0.015

270

0

IC760

GP1U281Q

D771

X

560

NCB31CK-104X

R779

2.7K

R775

3.3K

R666

560

C667

0.015

C645

C644

C640

C639

C638

C665

NCB31CK-104X

IC665 BA4558F-X FILTER

C669

D770

3

*

Q770

ECO DRIVE

C637

X

C636

X

NCB31CK-104X

*

XR630

XR629 X XR628

X XR627 XR626

XC642

XC641

X

2

R669

56K

C674

100n

R672

56K

Y666

P1241-04

ECO SENSER

R776

3.9K

R777

6.8K

C1

Y1

SW1

V1

L1

R1

C646

SCL

Y665

X

C668

GND

R673

68K

X

ROUT1

X

R638

SDA

R680

68K

VCC

GND

OUT GND

OUT

0V

R778

5.0V

X

C760

0.1

R760

6.8k C770 10/50

C761

R821

2.2k

L2

Y2

R2

R824

2.2k

V1

R813

2.2k

L1

Y1

R818

2.2k

R1

C1

SW1

V

IC602

X

R621

*

Lin

Rin

Vcc

GND

Cin

AGCADJ

ADD

LS1

Bin

LS2

MSin

Sout

XC643

BGAIN

PS

Vref

STT

STB

LT

CH

RT

LB

RB

CT

Rout

CB

SRV

Lout

SLV

Cout

SCL

SCV

X

SDA

DAC

R637

X

tone/vol

R670

15K

R667

C676

10K

0.022

47nC675

R668

68K

Vcc

R674

68K

C672 47n

R675

C670

10K

22n

R678

15K

R679

2.7K

)

/ME

)

100

NOT USED NOT USED NOT USEDNOT USED

100

NOT USED

SLR-342VR-T16

100/16

C811

0.1

C805

0.1

C806

L

C627

C634

X

C629

C631

C632

C633

C635

R671

2.7K

C671

47/16

POWER [RED]

X

MY

C809

X

R833

1k

R

R622

*

X

XC647

X

XCHC630

X

R677

4.7K

D682

3

*

D760

C808 1/10

NCF31AZ-105X

C625

X

R631

R632

CH

R676

4.7K

220/16

) )

C810

1/10 80%

C812

1/10 80%

C807

R832

1.2K

NCF31AZ-105X

X

R633

C673

33/16

C681

C682

10k

FRONT I/P

R780

470

R781

1.2K

80%

C626

X

C648

X

LOUT1

X

QSW0619-003Z

R820 100

R823

100

R815 100

R817

X

R819

X

C819

0.1

C821 1/10

C820 1/10

0.01C831

0.01C830

0.01C829

C827

0.01

YOUT1

R302

2.2K

C685

R652

1/10

2.2K

C686

R653

2.2K

1/10

NCF31AZ-105X

POWER OFF DET

4.6V

R689

X

S780

MENU

4.9V

4.3V

4.9V

4.4V

4.9V

C813

0.01

5.3V

4.3V

7.0V

5.9V

R835

5.6k

R834

5.6k

4.9V

4.3V

5.7V

4.9V

COUT1

R304

2.2K

R303

5.6K

R301

2.1V

2.2K

R651

R655

Q683

2

*

-1.0V

5.0V

R688

27k

4.4V

0

QSW0619-003Z

CH DOWN

R782

180

V2-V

V2-L

V2-Y

V2-R

V2-C

S2

V1-V

V1-L

V1-Y

V1-R

V1-C

S1

MTV-V

MTV-L

4.3V

MTV-R

4.3V

STV-V

STV-L

STV-R

Yin1

ADR

Cin1

GND

C308

0.01

2.6V

Q301

2

*

/

MSPRESET

Y603

Y604

0

MM1492AF

1.7V

R305

2.2K

P.ON MUTE

X

C683 33/16

Q302

IC801

R306

5.6K

*

QSW0619-003Z

2

R650

*

R698 100K

0V

R690 100k

R691

6.8K

R660 10k

CH UP

R783

220

V3-L

V3-V

V3-R

Cout2

Vcc

Yout2

BIAS

4.4V

Vout2

Lout2

Rout2

Yin2

GND

Cin2

MUTE

SCL

SDA

GND

Yout1

Lout1

Cout1

Rout1

Vout1

Q307

2.3V

C310

0

NC

0V

C650

10/50

Q684

0V

2

*

-0.3V

0V

Q687

1

*

MUTING

Q660

*

0.6V

R661

68k

QSW0619-003Z

VOL DOWN

R784 330

C814

0.1

R826 100

4.4V

4.9V

4.3V

9.0V

C833

22/50

5.0V

4.2V

1.9V

1.7V

4.1V

4.2V

3.4V

4.2V

5.1V

X

IC650

AN5276

RINRFGND

22.8V

0V

100/50

-0.4V

Q685

DTC323TK-X

MUTING

R693

10K

0.6V

R692 100K

R662

33k

1

D805

10/50

0V

C651

C652

R699 100K

0V

1/10 80%

X

Q305

Y301

0

R694

Y602

Q661

C815

C826

0.1

X

R312 X

0V

X

0

R695

R663

1

*

R785

470

R829

75

100/16

LIN

C660

0V

DTC323TK-X

MUTING

X

10k

QSW0619-003Z

VOL UP

C824

QRE121J-221Y

R839

QRE121J-221Y

R842

R313

X

C311

X

NC

*

R654

0.22

R658

2.2

Q686

Q688

X

R696

2.2K

C684

16.9V

R664

2.2k

C817 1/10 80%

R840 220

220

0

R841

0

LOUT

11.5V

0.22

C659

*

C662

R831

2.2k

C825

0.01

0.1V

L_R_MUTE

*

S784

S783

S782

S781

10k 1k 3.3M 3.3M

R

L

Y601

X

C620

C622

10/16

C619

0.1

C617

10/16

0V

0.1

C616

10/16C615

XC601

C605

R830

2.2k LOUT1

ROUT1

CH

180P

C834

R843

9.0V

820

YOUT1

VOUT2

LOUT2

V

ROUT2

R846

2.2k

CR

R847

10k

YOUT1

LOUT1

COUT1

CB

ROUT1

R314

C312

X

Q306

X

C313

X

W-H1

15.3V

GND

VCC

STB

ROUT

11.4V

24V

C661

0.22

C663

0.22

R659

2.2 QRE121J-2R2Y

Q860

3.0V

2

*

2.4V

R8441/10 80%

2.2k

R845

1K

R849

220

2.9V

Q861

2

*

4.2V

1.9V

R848 470

SCL

SDA

R880

R883

2K

180

1.9V

Q862

2

*

2.6V

R881

R882

10k

470

R315

X

R316 X

W-H2

EW

A.GND

VDRB_

A_OUT_L

A_OUT_R

PROTECT

C656

C655

1000/35

QEHQ1VM-108

R

L

D653

D652

MA3330/L/-X

EW

A.VCC

A.GND

PROTECT

C684

F/50V10

NOT USED

X

C623

1

3.7V

C613

C624

0.1

0.1V

1

C612 10/16

C614

X

L602

*

C611

0.1

220R724

SCL

SDA

VDRA+

P_ON/OFF

5V

P_ON/OFF

3.3V_STB

5V_STB

9V

VDRB_

VDRA+

NOTUSED NOTUSED NOTUSED NOTUSED NOTUSED NOTUSED NOTUSED

0.001

C621

0.001

NC

8.3V

NC

2.9V

AHVSVP

CAPL_M AHVSS

AVSUP

0.2 V

C610

10/16

QGA2501C5-06Z

220R721

R710

4.7K

R709

4.7K

47/16

5.0V

VDD

A0

R725 10K

8V

ANA_IN+

1.5V

0.01

C609

CN00C

SCL

SDA

SCL1

5.0 V

SCL

TEST

A1

A2

0V

AT24C08-29LS

R708

4.7K

R707

2SC2412K/QR/-X

2.9V

VREF1

SCI_OUT_L

SCI_OUT_R

IC601

MSP3445G-QG-B8X

ANA_IN-

TESTEN

XTAL_IN

0.01

2p

C608

C607

L701 10 QQL244K-100Z

R714 100

R743

SDA1

1K

C701

220/16

100

R711

R712

100

5.0V

SDA

VSS

4.7K

Q703

L001

8.2

QQL244K-8R2Z

C001

0.01

IF

0V

NC

32V

7.4V

3.7V

AGNDC

SC2_IN_L

SC2_IN_R

ASG1

SC1_IN_L

SC1_IN_R

VREFTOP

MCNO_IN

AVSS

0V

5.0V

220R723

220R722

C714

0.1

C711

32V

NC

0V0V

NC

DACM_L

DACM_R

XTAL_OUTNCD_CTR_OUT1

2.4V

X601 CE42546-001Z

C606

2P

R715

10K

2.7V

Q701

2

*

D7024

MA3024-X

R713

100

4.8V

IR

POWER

3.3V

R701 10K

5.0V

3.3V

2.7V

REMOTE

P_ON/OFF

L002

C002

10/50

TF

0.1

C003

C004 8.2

0V

5V

BM

5.0V

33.8V

LOCK

XY101

XY102

QQR1214-001Y

XY103

QQR1214-001Y

XY104

CN01B WJQ0003-002A

NC

VREF2

D_CTR_OUT0

ADR_SEL

5.0V

3.3V

R717

10K

5.0

5.0 V

SDA1

SCL

1.8V

100R702

100R703

SCL

SDA

SCL

SDA

QQL244K-8R2Z

220

R001

470/16

SCL

1.7V

SDA

NC

5.0V

RESETQ

NC

DVSS

DVSUP

5.0V

TP

NC

C604

0.1

NC

TP

NC

TP

NC

TP

NC

R603

100

I2C DA

1.7V

I2C CL

1.9V

R604

STANBY

100

C707

100/16

R716

10K

3.3V

Q702

2

*

X701

QAX0688-001

5.0V

22p

C703

CH

XY701

12MHZ

C702

10/50

V

0V

1.6V

3.3V

SCL1

VDDP

RESET

XTALOUT

MICRO

SDA

3.58/OTH

4.5/OTH

MSPRESET/

P.ON MUTE

1.6V

3.3V

5.0 V

1KR705

*

1KR706

R704

/

KEYIN

MSPRESET

P.ON MUTE

R102

6.8K

for BG

R101

C101

10

0.0047

CF102

R103

X

2.7K

CF101

X

220

R002

R006 27K

NC

0V

BT

AS

4.6V

8.6V

1.9V

AGC

R005

**

K104

K103

K101

*

R602

C602

10n

LC601

CE42482-103Y

QQL244K-4R7Z

SCL

C713

CH

0.1

22p

C704

C705

0V

1.5V

XTALIN

OSCGND

3.3V

KEYIN

ECO_IN

2.8 V

220

R718

R719 220

C715

ECO

N3.58/OTHERS

1.5V

R106

100

Q101

2SC5083/L-P/-T

C005

0.0022

QAU0251-001

K108

*

C603

100/16

L601

SDA

10

L702

C710

0.22

C709

100/16

*

3.3V

VPE

VDDC

VSSC

LED

0V

X

LED

L101

QQL244J-5R6Z

R104 180

9.0V

2.2V

R105

22

C103

0.0047 C102

0.0047

C006

33/16

TU001

XK107

C141

C142

C143

X

/

P.ON MUTE

MSPRESET

TO CRT SOCKET PWB CN10T

CN00T

QGA2501C5-08Z

GRB

QQL244K-100Z

100

R741

0.22

C706

0V

2.8V

VDDA

BOUT

GOUT

3.3V

PROTECT

GND(A)

SEC.PLL

0V

C730

0.22

C732

100/16

X

Y730

C105

X

R107

4.7k

C104

0.0047

C109

10/50

R108

2.2k

D101

DAN235K-X

R003

3.9K

R004

220

K106 QQR1214-001Y

K105 QQR1214-001Y

X

C144

X

C151

4.7n

IK

GND

100

R740

2.7V

ROUT

CHROMA

0V

VP2

C731

0.22

L730

X

R720

1K

Q102

IC130

X

EQ

RF AGC DLY

APC

AFC

R150

R152

IBLACK

DECDIG

R109

V OUT

RF AGC

OUT

Vcc.F

V IN

VCO

V IN

VCO

GND

S IN

Vcc

SIF OUT

AGC.F

SIF SW

FM FB

SIF IN

FM OUT

330

R151

2.2K

Q150

6.3V

C150

1

4.7n

*

3.1V

2.5V

R153

120

1.2K

R154

180

3D732

0.1

BW

K701

C725

5.1V

4.9V

2.2k

0

R746

C751

33K

C752

C753

R747 10K

2.7k

R737

***

R748

R749

C749

10/50

2.6

2.4 4.2 1.9

680P

V

VVV

V

Y

U

2.6V

BCL

FBLIN2

3.8V

3.0V

0V

4.0V

2.0V

PHF2

PHF1

GND

DECBG

EWDR.

22KR730

.1/16

0.0022C735

C738

C734

0.0022

R731

1/50

C737

R758

C736

1/50

EW

R727

C720

100K

47/16

5.0V

Q720

0V

SF102

2

R726

*

QAX0594-001

4.7K

C106

0.01

SF101

QAX0663-001

C107

0.01

Y001

R110

X

2.2K

C108

X

Q103

X

C140

X

R147

X

R148

X

9V

10K

R738

100

R739

2.7V

8.3V

C733

0.1/16

X

Y004

C133

R143

X

Q137

C134

X

C136

X

C137

X

C138

X

R146

X

C743

100/16

.047/25

C746

C747

.047/25

3.7V0V3.3V

1.5V

CIN

GND1

AMOUT

CVBS/YIN

1.9V

0.7V

0.8V

VDRB(-)

VDRA(+)

IFIN1

IFIN2

100

R755

100

R756

X

2.2K

R757

C756

2.2K

VDRB_

VDRA+

PROTECT

R728

10K

R144

C132

X

C135

R145

X

L104

QQL244K-180Z

9.0V 0V

Q111

1

*

4.3V

R121

X

CF106

QAX0639-001Z

Q108

*

R116

X

R117

1K

R750

100K

C745

39K

CVBSINT

IREF

C755

3.8V

X

8.3V

VP1

3.6V

VSCAP

C739

NFV41CJ-104X

R735

C741

.1/16

390

R734

33K

R736

3.5V

3.8V

PIL1

IF VOUT

4.6V

AGCout

SIF IN1

1.9 V

0.01

C007

C742

.1/16

1.9V

R732

R139

X

R140

X

Q135

R132

X

C130

X

Q131

X

R119

1K

Q109

2

*

3.9V

R114 X

Q107

*

CF103

X

L731

QQL244K-150Z

R744 560

C750

X

R733 27K

1.4V

IC701 TDA9365PS/N1/5S

33

2.8Vp-p(H

43

0.55Vp-p(H

51

3.4Vp-p(H

53

3.6Vp-p(H

X

Y130

X

CF131

X

L102

X

D730

3

*

D731

3

*

)

R137

X

C131

X

Q134

X

CF130

X

R113

X

(or A2BILINGUAL2/OTHERS)

Q136

X

R142

X

R141

X

Q132

X

R135

X

R134

R133

X

R120

470

0V

3.0V

Q110

*

W-M1 W-M2

L103

X

R115

X

CF104

X

CF105

X

0

C744

1000p

0

0.6

R742

V

2.0V

2.6V

EHT

SAND

QSS OUT

2.1V

SIF IN2

GND2

SIF AGC

AVL/REF OUT HOUT

0

1.9

4.0V

V

C740

2.2/50

IC701

R131

X

Q130

X

Q106

*

D733

3

*

R745 1M

IC701

1.0Vp-p(V

C726

X

IC701

1.0Vp-p(V

4.5/OTHERS

IC701

1.04Vp-p(H

IC701

1.6Vp-p(H

IC701

2.6Vp-p(H

R136

X

R138

X

Q133

X

R149

X

CF140

X

CF141

CF142

X

R130

X

Y003

X

Y002

X

R111

R112

X

Q104

*

Q105

*

ABL

H_DRIVE

HFB

21

)

22

)

42

)

47

)

52

)

NOTE

1: 2SC2412K/QR/-X 2: 2SA1037AK/QR/-X 3: MA111-X 4: MA3120/M/-X

Q108Q107Q106Q105Q104C705R749R748R704R654R650R622R621R602R005

BW: X: 0:

Q110

D124TCEKA-X2SC2412K/QR/-XDTC124EKA-XDTC124EKA-X 2SA1037AK/QR/-X2SA1037AK/QR/-X2200pF2.2M4.7M

7: 2SC1740S/QR/-T

BUS WIRE NON MOUNT (OPEN) NRSA63J-0R0X

K101 K108

QQR1214-001Y BW

BW

QQR1214-001Y

L602

QRN143J-0R0X

BW

No.51908 2-5 2-6 No.51908

AV-21L31 AV-21L31 AV-25L31 AV-25L31

MAIN PWB CIRCUIT DIAGRAMS (2/3, 3/3

POWER CORD! AC120V-240V 50/60Hz

QMPR010-200-E2

CN0PW

QGAB801F1-02

PW

!

S901

QSW0846-001

F901

3.15A

! QMF51E2-4R0J4

!

VA901

QAF0052-621

OR

ERZV10V621CS

R917

!

C906

QFZ9073-224

Y918

X

XY913

Y917

XY912

Y916

XY911

Y915

Y914

XY910

IC901

*

POWER REGULATOR

OVP

TSD

OSC

DRIVE

MTZJ12C-T2

Y904

X

Y903

X

!

LF901 QQR0673-004 LINE FILTER

Y902

X

Y901

X

Y906

X

Y907

X

R902

QRF154K-2R2

15W,UNFR

*

X

* *

X

GND

Vcc

D903

19.6V

291V

0V

2.4V

T551

QRL039J-333

C911

220/25

EG01C-T2

C908

QCZ0364-222

OR

QCZ0325-222

OR

QCZ0122-222

C910 470p

NDC31HJ-471X

8Vp-p(H

R908

33K

3WOMR

D906

D910

NRSA63J-0R0X

9

)

MAIN PWB ASS'Y(2/3 SCH-1501A-M2(AV-21L31

SCH-1502A-M2(AV-25L31

DIFFERENCE LIST(PA RT S

SCH-1502A-M2

SCH-1501A-M2 SCH-1502A-M2 47

SCH-1501A-M2 SCH-1502A-M2

STR-F6707A/F7SCH-1501A-M2

STR-F6709A/F7

R493 R494 R526 R528 R529 R540 R541 R542 R591 R592 R593 R905 R910 R912 R991

NOT USED

33k

C483

NOT USED NOT USED

4.7 F/50V

Q352 L480

2SC4722/NP/ QQLZ016-821

NOT USED QQR1138-001

4.7k

NOT USED

!

NOT USED

C485

22 F/50V 0.0045 F/1.5kVH

)

QRZ0111-474

QFZ9073-104

QQR1035-002

QFZ9073-473

C904

*

K902

D902

X

D908 MTZJ27B-T2

D909

!

C901

!

LF902

!

C902

0.0022

QCZ9015-102Z

QEZ0199-227

D904 EG01C-T2

R907

56K

ERC30-02L38

RGP10J-TS-T3

3

*

C915

1/2W

T551

96Vp-p(H

!!R915

GSIB460

C907

*

MY

R911

3.3K

0.0022

220/25

C917

TH901

QAD0134-4R5

Y909

X

Y908

X

D901

C903

C905

R909 470K 1/2W

D907

*

C914

R904 680 1/2W

D914

R906

X

2WMFR

D911

R913

BW

1/2W

D912

X

1SS133-T2

R912

*

R910

*

1/2W

2

)

0.0022

QCZ9015-102Z

R905

*

3WMFR

T551

150Vp-p(H

CNDEG

QGZ5004C1-02

!

C916

X

VOLTAGE FEEDBACK

6

)

/ME

DEG COIL

L01

R991

*

QCZ9079-102

LIVE

!

PC901

PC123F2

) )

*

QCZ9073-332

!

C991

T551

150Vp-p(H

C993

!

400VAC

RY901

QSK0061-001

C992

!

T901

*

!

Q954

1

*

ISOLATED

QQR1214-001Y

7

D968

3

*

R966

6.8K

R967

47K

QCB32HK-471Z

ERC30-02L38

K951

K953

D953

**

QCB32HK-471Z

K954

Y951

*

K955

QQR1214-001Y

C959

560P 2KV

QCZ0122-561

OR

QCZ0325-561

OR

QCZ0122-222

R952

3.3K

MA3068/M/-X

)

100/16

C952

D952

C955

*

C957

D954 RGP30B-F1

D956

*

C980

D969

3

*

CP

ICP-N75-Y

QEHQ1VM-108

IC PROTECT

!

IC PROTECT

C960

*

R953 100

27.7V

D966

6.8

0V

R965

0

!

CP951

1000/35

CP952

CP

CP953

CP

C953

!

*

QQLZ034-460

Q953

1

*

0V

C979

X

Q521

45Vp-p(H

L951

46

IC401

0.7Vp-p(V

2Vp-p(V

1SR35-400A-T2

C954

0.001

C956

*

C958

1000/25

QEHQ1EM-108

R963

10K 1/2W

R964 47K

C

)

1

2

D955

1W OMF

0V

VDRB_

8V

P_ON/OFF

5V

9V

C977 47/35 QEHR1VM-476Z

R961

22k

2W OMF

H_DRIVE

32V

C972 47/35 QEHR1VM-476Z

C976

100/16

PROTECT

D964 MA3330/L/-X

H_DRIVE

A.VCC

D408

*

STB

32V

9V

5V

8V

9V

C407

QCS32HJ-180Z

C402

QCB31HK-682Z

14.4V

0.3V

C407

3

R401 220k

PUMP UP

+VCC

-13.1V

R402

C402

6800p

D402

MTZJ75-T2

C406

.068/100

QFLC2AJ-683Z

K401

BW

RGP10J-5025-T3

68k

C401 1/50

IC401

AN5522VERT OUT

THERMAL

PROTECTION

0.9V

-VCC

-15.2V

X

1000/35

R407

R403

0

0.3V

C403 220/35 QEHR1VM-227Z

14.6V

D405 1N4003-T2

C422

C408

0.18 TF

IC401

X

D401

R425

IC401

8V

R410

QRL039J-820

C550

NCB31CK-104X

R521 100

1W OMF

.056/100

12K

R411

220

C413

MY

R524

0.1

R522 1K

9V

C411

NCF21HZ-334X

C412

NCF21HZ-334X

R412

1

5V

32V

STB

1/2W

9V

H_DRIVE

XY505

XY504

XY503

XY502

XY501

2SC2655/Y/-T

D550

*

C409

X

R486

R413

2.7 R485

1W

R414

*

C484

X

C485

*

C521 47/35

T521

*

Q521

20.6V

C522

0.0033

0V

MY

3

3.3V_STB

5V_STB

A.GND

A.VCC

3

IC401

30Vp-p(V

IC401

20Vp-p(V

R954

56

1/2W

D958

MTZJ5.1A-T2

R956

10

5.3V

1/2W

C963

47/16

IC974 BA51W12ST-V5

9V IN 5V CTL

9.8V

9.1V

Y905

BW

R969

X

NCB31CK-104X

134.2V

R962

560

C978

0.1

B

)

6

L88M33T-X

C968

0.1

26.6V

)

IC972

GND

5.1V

C969

D965

1SS133-T2

IC951 SE135N ERROR AMP.

Q522

5VSTB

C962

10/50

3.3V

3.3VSTB

QEHR1VM-476Z

2.7V

X

2.4Vp-p(H

C964

47/16

R957

6.8 1/2W

C974

0.1

NCB31CK-104X

C970

X

100/16

QEHR1CM-107Z

B

)

R960 390

C973

L953

QQL244J-5R6Z

C975

220/16

L954

QQL244J-5R6Z

QRL029J-223

)

R955

33

*

Y955

Y956

Q952

1

R970

*

0.6V

15K

R971

18K

Q521

2Vp-p(H

VDRA+

R405

6.8K

R404

X

R406

C404

12K

X

5

)

60Vp-p(V

7

)

5Vp-p(V

Y731

X

R408

6.8K

R409

R480

X

*

R482

R481

*

C481

X

9.0V

UPC358G2-XE

6.6V

*

-0.1V

R545

22

1/2W

R526

*

C523

0.022 MY

2.0V

IC480

2.5V

2.4V

H.OUT

2SD2634-YD

R484

2.0V

R491

*

Q522

1.5kVH MPP

*

1.9V

*

R487

R489

*

R490

*

T551 T551 T551

25Vp-p(H

)

390k 120k

270 270

F/1.5kVH0.0061

QQR1005-004 BW CE40203-00CJ1 QQH0104-001 QQS0117-001 NOT USED ICP-N75-Y QQD0060-001 NOT USED BWBW NOT USED QQW0118-001 QQR1137-005

47k

NOT USED

1.2

0.47

F/1.5kVH0.0034

0.011 F/1.5kVH

L524 QQLZ034-360 QQLZ026-140 QQL244J-5R6Z QQR1229-001 QQH0097-001 QQS0116-001 ICP-N50-Y ICP-N38-Y QQD0062-001 BW

150

1.2

0.47

0.0018 F/400V

NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED

680

!

F/400V0.0039

4.7 47

C527 C528C525C524 C526 C529 C541 C592 C915 C955 C956 C960 D521 D522

F/250V0.15

0.018 F/250V

T521 T551L540L523 T901 CP952 CP953 DY01 Y915 Y916K902 K953 L01 V01

150k 120k

F/250V0.12

0.018 F/250V

! !

150k 120k

F/250V4.7

2.2 F/100V

2.2k

4.7k

F/250V4.7

10 F/250V

! !

2.2

3.9

F/160V100

220 F/160V

0.0015 F/50V

1k

820

0.22

0.15

NOT USED

F/50V0.0022

470pF/500V

NOT USED NOT USED NOT USED

3.9k

4.7k

NOT USED

220 F/35V 220 F/160V

1.8k

1.5k

!

F/160V100

ABL

HFB

EW

R539

X

R538

X

Q524

X

C537

X

D480 MTZJ4.3A-T2

!

*

C483

*

1.5kVH MPP

C526

*

400V PP

C525

X

R537

X

R536XC538

X

R535

X

1% MF

L480

*

C529

*

D594

R534

1% MF

D596

X

QEHR1EM-108Z

250V MPP

RGP10J-5025-T3

C539

C531

1000/25

C527

*

C528

*

QRL039J-103

X

QEHR1EM-108Z

D523

R527

10K 3W OMF

D595

X

Q523

X

D593

C480

*

R483

*

R492

*

R493

*

R494

Q480

2SD1408/OY/-LB

D521

*

D522

C524

*

4810

)

R490R489R487R486R485R484R483R482R481R480R414R377R373R362IC901

!

NOT USED

8.2M

ERB06-15-F1

RH3G-F1

)

90Vp-p(H

R491 R492

NOT USED NOT USED

C351 C353 C356 C480 NOT USED 560PF/50V

RU3AM-11 MA3300/M/-X

31DF6N-FC5 MA3150/M/-X

NOT USED

1140Vp-p(H

1 F/250V

NOT USED

)

8.2k5.6k1k33k2.7k 1.2k5.6k5.6k82k5.6k22k8.2

D907

Y918 Y951

F/250V4.7

BW NOT USED

TDA6107Q/N2

150

R350

150

R353

R351

C352

XD365

3

*

D361

Q354

Q355

*

D356

3

*

C535

100p/500

R531

2.2K

R530

X

R529

2W OMF

C532

X

D554

RGP10J-5025-T3

L523

C530

DY01

*

1

*

1

470/16

C351

*

R543

470 1/2W

3

*

D363

Q353

1

*

C358

R590

C536

0.01 MY

D524

X

RGP10J-5025-T3

D362

R533

X

4.7 1/4W FR QRZ9017-4R7

C534

D553

TO MAIN PWB CN00T

CN10T

1000/25

R528

*

2W OMF

QCB32HK-561Z

9V

IK R G

B

QCB32HK-101Z

C533

560p/500

DEF YOKE

F/16V100

1000 F/16V

D953 D956

NOT USED RU3AM-LFC4

RGP10J-5025-T3 31DF6N-FC5

BW

IC351

2.2K

R369

C357

NDC31HJ-101X

QFK62EK-104Z

*

L351

C353

D359

100

RGP10J-5025-T3

R380

QQL03BJ-5R6Z

R361

0

R367

R362

3

820

*

1/2W

Q351

*

3

*

C356

D364

*

R385

X

R386

R381

100

R382

100

R383

100

D351

R384

3

22K

*

L524

*

FR

X

!

R532

X

R591

1/2W

R592

*

C592

*

HV

CN0HV QGZ5004C1-06

V.DYH.DY

NOT USED

10 F/50V

NOT USED BW

!

SK351

CE42446-001

TP-47B

BK GK

RK H

R363

2.2K

R364

R354

H

R365

R368

TP-47R

SG302

D358

RGP10J-5025-T3

*

Q352

*

MA3075/M/-X

R374

120K

1/2W

HB

T551

*

FBT

SG303

QAF0006-501

R373

*

NC

GND

QAF0006-501

TP-47G

R363

R365

R368

QCZ0131-222

SG301

QAF0006-501

CN10U

CHGC04-400-G

CN00U

CHGC04-400-G

HEATER

D541

RGP10J-5025-T3

D551

RGP10J-5025-T3

QRZ0107-152Z

U

D357

RGP10J-5025-T3

R377

2

D360

!

*

C591

R593

100/10

134.2V

*

133.8V

Q591

0V

2SA1208/ST/Z1-T FBT PROTECTOR

R594 18k

1/2W

R595

2.2k

NOTE

Y955 Y956

NOT USED

BWCE41433-001Z QQR1214-001Y QQW0119-001

B

G

R

G1G2G3

E1

CRT

SK351

GND

QRZ0107-152Z

C354

QAF0041-272

)

TO CRT

*

!

C541

R540

**

0V

Q592

FBT PROTECTOR

DTC124EKA-X

SG304

0.0047

C355

1.25KV

QCZ0131-472

MAIN (CRT SOCKET) PWB ASS'Y (3/3

SCH-1501A-M2 (AV-21L31 SCH-1502A-M2 (AV-25L31

TP-E

EHV

FOCUS1

SCREEN

R542

1/2W

C540

0.1

TF

R546

R541

8.2K 1/2W

L540

*

D592

MA3075/H/-X

C593 47/25

1: 2SC2412K/QR/-X 2: 2SA1037AK/QR/-X 3: MA111-X

BW:

BUS WIRE

X:

NON MOUNT (OPEN)

0:

NRSA63J-0R0X

!

A51QDX992X

A59QDF89/X/ST/

V01

*

EHV

FOCUS1

SCREEN

SC

/ME

)

/ME

)

CN00S

GND

FOR ADJ.

X-RAY1 X-RAY2

CONNECTOR

NC B1

QGA2501C5-05Z

5.0V

No.51908 2-7 2-8 No.51908

PATTERN DIAGRAMS

MAIN PWB PATTERN

AV-21L31 AV-25L31

B1

()

FRONT

No.51908 No.51908

2-102-9

PATTERN DIAGRAMS

MAIN PWB (CRT SOCKET) PATTERN

TOP

AV-21L31

AV-25L31

()

No.51908

2-11

AV-21L31 AV-25L31

CHANNEL CHART

MODE

TV DISP.CATV

BAND

VL

VH

MID

SUPER

HYPER

ULTRA

2-12 No.51908

CHANNEL

02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70

TUNER

BAND

I

II

I

II

IV

MODE

TV DISP.CATV

NOTE:

TO RECEIVE THE SUBSCRIPTION OR PREMIUM PROGRAMMING FROM CERTAIN CABLE COMPANIES. SPECIAL ADAPTERS MAY BE REQUIRED.

BAND

ULTRA

SUB

MID

UHF

TOTAL 180CH

VHF 124CH

UHF 56CH

CHANNEL

71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93

94 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125

01

96

97

98

99

14

69

TUNER

BAND

IV

I

IV

VP0203 SW

JVC AV-21L31ME, AV-25L31ME Diagram

Specifications and Main Features

Frequently Asked Questions

User Manual

STANDARD CIRCUIT DIAGRAM

CONTENTS

SEMICONDUCTOR SHAPES

BLOCK DIAGRAM

CIRCUIT DIAGRAMS

PATTERN DIAGRAMS

CHANNEL CHART