JVC AV-21L31/AR, AV-25L31/AR, AV-29L31/AR Schematics

AV-21L31
AV-25L31

SCHEMATIC DIAGRAMS

COLOR TELEVISION

BASIC CHASSIS

CH

POWER

DISPLAY

MENU

CHANNEL VOLUME

CLOSED

MUTING

CAPTION

TV/VIDEO

123

456

PICTURE MODE

7809

100

RETURN

CHANNEL SCAN

OFF TIMER

ECO SENSOR

RM-C248 REMOTE CONTROL UNIT

RM-C248-2C

AV-21L31
AV-25L31

CD-ROM No. SML200208

/AR

/AR

COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.

No. 51969

Jun. 2002

AV-21L31/AR

AV-21L31
AV-25L31

AV-25L31/AR

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
TA N: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.

Jun. 2002 No. 51969

AV-21L31
AV-25L31

CONTENTS

SEMICONDUCTOR SHAPES .................................................................................................................................2-2

BLOCK DIAGRAM.......................................................................................................................................................... 2-3

CIRCUIT DIAGRAMS

MAIN PWB CIRCUIT DIAGRAM (1/3) ............................................................................................................................. 2-5

MAIN PWB CIRCUIT DIAGRAMS (2/3, 3/3) ...................................................................................................................2-7

PATTERN DIAGRAMS

MAIN PWB PATTERN......................................................................................................................................................... 2-9

MAIN PWB (CRT SOCKET) PATTERN ......................................................................................................................... 2-11

SEMICONDUCTOR SHAPES

TRANSISTOR

TOP VIEWBOTTOM VIEW FRONT VIEW

CHIP TR

E

C

B

ECB

EC

B

(G)(D)(S)

ECB

ECB

C

B

E

IC

CHIP IC

TOP VIEWBOTTOM VIEW FRONT VIEW

OUT

E

IN

IN E OUT

N

N

N

1

N

1N

TOP VIEW

1

N

1N

1N

2-2 No.51969

BLOCK DIAGRAM

AV-21L31

AV-21L31
AV-25L31AV-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

CR

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

CB

C

13

15

14

26

24

23

Q111 Q109

BUF

IC702

EEPROM

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

FILTER

IC665

IC601

MULTI SOUND

PROCESSOR

40 41

L, R

L_VOL, R_VOL

5

2

26,27

30,31

IC650

AUDIO AMP

7

12

MAIN (CRT SOCKET)

IC351

VIDEO AMP

J770

HEADPHONE

JACK

SP

SP

R

V01

L

AC IN

VOL+

VOL- CH+ CH- MENU

REMOCON
RECEIVER

S901

POWER SW

POWER

LED

F901

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

V

DY01
DEF YOKE

H

FOCUS1

SCREEN

EHV

No.519692-4No.51969 2-3

CIRCUIT DIAGRAMS

MAIN PWB CIRCUIT DIAGRAM (1/3)

AV-21L31AV-21L31
AV-25L31AV-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

R

L

J770

QNS0155-001

HEADPHONE JACK

R

L

GND

J771

J772

J773

QNN0349-001

V2/Y

J802

J803

QNN0349-001

Vout

Lout

Rout

R774

X

J801

YC

V1

L1

R1

R805
75

J802

Cb

X

Y802

X

Cr

Y803

Y801

X

L2

R2

J804

R836

75

J804

R808

82k

J804

R810

NC

82k

Q802

DTC323TK-X

IC801

1.2Vp-p(H

IC801 IC801

2.1Vp-p(H

MAIN PWB ASS'Y(1/3
SCH-1503A-R2(AV-21L31

SCH-1504A-R2(AV-25L31

DIFFERENCE LIST

∗

SCH-1503A-R2
SCH-1504A-R2

L

QGA2501C5-04Z

R770

QRE121J-271Y

R772

QRE121J-271Y

X

Y804

R807

75

BUFFER

C822

470/16

R809

7

27

CN001

R801

X

R802

X

R804

75

C801

10/50

R806

75

C802

10/50

Q804

7

∗

4.4V

390

R811

390

Q801
DTC323TK-XDTC323TK-X

)

)

B.MUTE

1K

D801

∗

D802

∗

5.0V

R837

C803

10/50

10/50

IC801

1KR773

4

100

C804

CN00A

R803

33k

Y2

L2

R2

C823

100/16

Q803

2

∗

2.2Vp-p(H

2.2Vp-p(H

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

)

(

A.GND

VIDEO

CB

CR

PARTS

∗

R771

9.0V

R838
120
QRK126J-121X

R812
100K

4.7MΩ 4.7MΩ

R769

X

ECO

REMOTE

LED

KEYIN

WJQ0003-002A CN00B

R665

560

C666

0.015

NCB31CK-104X

D770

3

∗

R779

2.7K

R775

3.3K

Q770

2

∗

ECO DRIVE

R666

560

C667

0.015

XR630

XR629
X

C645

XR628

X

C644

XR627
XR626

XC642

XC641

C640

X

C639

X

C638

X

C637

X

C636

X

NCB31CK-104X

C665

NCB31CK-104X

IC665
BA4558F-X
FILTER

C669

)

R806

75

Ω

NOT USED

3.9K

Y665

R669

56K

C674
100n

R672

56K

R673

Y666

X

P1241-04

ECO SENSER

R776

R777

6.8K

C1

Y1

SW1

V1

L1

R1

ROUT1

C646

X

SCL

X

R680

C668

GND

68K

D771

R638

SDA

68K

R778

X

R760

6.8k
C770
10/50

L2

Y2

R2

V1

L1

Y1

R1

C1

SW1

IC602

R621

X

Rin

GND

AGCADJ

LS1

LS2

Sout

XC643

PS

Vref

STB

CH

RT

RB

Rout

SRV

SLV

SCL

X

SDA

R637

X

tone/vol

R670

15K

R667

C676

10K

0.022

Vcc

R674

68K

R675

C670

10K

22n

R678

15K

)

R807

75Ω

NOT USED

IC760

GP1U281Q

VCC

OUT GND

GND

OUT

0V

5.0V

C760

R821

2.2k

R824

2.2k

R813

2.2k

R818

2.2k

X

Lin

Vcc

Cin

ADD

Bin

MSin

BGAIN

STT

LT

LB

CT

CB

Lout

Cout

SCV

DAC

R668

68K

C672
47n

R679

2.7K

POWER [RED]

SLR-342VR-T16

0V

0.1

C761

100/16

C811

0.1

C805

0.1

C806

X

MY

C809

R833

V

L

R622

C627

C634

X

C629

X

C631

C632

C633

C635

X

R671

2.7K

47nC675

C671

47/16

R677

4.7K

D682

∗

3

/AR

/AR

NOT USED
2200pF/50V2.2MΩ2.2MΩ

X

1k

R

X

X

XC647

XCHC630

X

CH

X

X

C705R749R748

D760

1/10 80%

1/10 80%

C808
1/10

NCF31AZ-105X

C625

X

X

R631

X

R632

R676

4.7K

C681

220/16

C682

220/16

)
)

FRONT I/P

R780

470

R781

1.2K

C810

C812

C807

80%

R832

1.2K

NCF31AZ-105X

LOUT1

C626

X

C648

X

R633

X

C673

33/16

C821
1/10

R652

2.2K

R653

2.2K

POWER OFF DET

R689

S781

S780

QSW0619-003Z

MENU

R820
100

4.9V

4.3V

R823

4.9V

100

4.4V

4.9V

C813

0.01
R815
100

5.3V

4.3V

R817

X

4.4V

R819

7.0V

X

C819

0.1

5.9V

R835

5.6k

R834

C820

5.6k

1/10

4.9V

0.01C831

4.3V

0.01C830

4.3V

0.01C829

5.7V

4.9V

C827

0.01

COUT1

YOUT1

R304

2.2K

R303

5.6K

R301

2.1V

2.2K

R302

2.2K

C685

R651

1/10

R655

C686
1/10

NCF31AZ-105X

Q683

2

∗

-1.0V

4.6V

5.0V

X

R688

27k

K701 K108

QQR1214-001Y BW

BW

C308

0.01

2.6V

Q301

0

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

∗

2

/

P.ON MUTE

MSPRESET

X

Y603

Y604

0

QSW0619-003Z

IC801

MM1492AF

R306

5.6K

1.7V

Q302

∗

2

R305

2.2K

R650

X

R698
100K

0V

R690
100k

C683
33/16

R691

6.8K

R660
10k

QQR1214-001Y

R783

220

2.3V

Q684

∗

S782

CH UP

V3-L

V3-V

V3-R

Cout2

Yout2

BIAS

4.4V

Vout2

Lout2

Rout2

Yin2

GND

Cin2

MUTE

SCL

SDA

GND

Yout1

Lout1

Cout1

Rout1

Vout1

C650

10/50

2

-0.3V

0V

R661

68k

Vcc

0V

MUTING

Q307

C310

0

NC

0V

Q687

1

∗

Q660

∗

0.6V

QSW0619-003Z

VOL DOWN

R784

330

C814

0.1

R826

100

4.4V

4.9V

4.3V

9.0V

22/50

5.0V

4.2V

4.2V

1.7V

4.1V

4.2V

3.4V

4.2V

5.1V

X

RINRFGND

0V

DTC323TK-X

R693
10K

0.6V

R692
100K

R662

33k

1

S783

QSW0619-003Z

VOL UP

R785

470

R829

75

C815

1/10 80%

D805

X

C833

C824

100/16

QRE121J-221Y

1.9V

QRE121J-221Y

C826

0.1

Q305

X

Y301

0

R313
R312
X

C311

IC650

AN5276

LIN

NC

22.8V

0V

C651

100/50

R654

C652

10/50

C660

0.22

R699
100K

R658

2.2

0V

-0.4V

Q686

DTC323TK-X

MUTING

Q685

MUTING

R694

Q688

X

Y602

0

R695

0V

X

R663

10k

16.9V

Q661

R664

1

∗

2.2k

0V

L731
QQL244J-5R6Z
QQL244J-151Z

S784

R839

R842

X

X

X

X

R696

2.2K

C684
10/50

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

∗

R830

2.2k
LOUT1

ROUT1

CH

180P

C834

R843

820

YOUT1

3.0V

R8441/10 80%

VOUT2

2.2k

LOUT2

V

ROUT2

R846

R849

2.2k

220

2.9V

CR

Q861

∗

2

4.2V

1.9V

R847

R848

10k

470

YOUT1

LOUT1

R880

R883

2K

180

1.9V

X

STB

CB

W-H1

15.3V

2.6V

R881
10k

C312

X

W-H2

ROUT

11.4V

C661

0.22

C663

0.22

R659

2.2
QRE121J-2R2Y

Q862

∗

2

2.6V

R882
470

R315

X

R316
X

C655

1000/35

QEHQ1VM-108

R

L

D652

MA3330/L/-X

COUT1

ROUT1

R314

X

Q306

X

C313

GND

VCC

24V

2-5No.51969 2-6

9.0V

Q860

2.4V

R845

A_OUT_R

R

L

Y601

X

C620

C622

10/16

C619

0.1

C617

10/16

0V

0.1

C616

10/16C615

XC601

C605

X

C623

1

3.7V

3.7V

C613

C624

0.1

0.1V

1

C612

10/16

C614

X

L602

QRN143J-0R0X

C611

0.1

∗

2

1K

SCL

SDA

220R724

SCL

SDA

EW

A.GND

VDRB_

VDRA+

A_OUT_L

PROTECT

P_ON/OFF

C656

1000/35

QEHQ1VM-108

D653

MA3330/L/-X

9V

A.GND

EW

A.VCC

VDRB_

PROTECT

VDRA+

P_ON/OFF

3.3V_STB

5V_STB

5V

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

IC702

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

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

P_ON/OFF

REMOTE

L002

C002

10/50

TF

0.1

C003

C004 8.2

0V

5V

BM

5.0V

5.0V

33.8V

LOCK

XY101

XY102

QQR1214-001Y

XY103

QQR1214-001Y

XY104

CN01B
WJQ0003-002A

NC

NC

VREF2

D_CTR_OUT0

ADR_SEL

5.0V

3.3V

3.3V

R717

10K

5.0

5.0
V

SDA1

SCL

1.8V

100R702

100R703

SCL

SDA

SDA

SCL

QQL244K-8R2Z

220

R001

470/16

SCL

1.7V

SDA

STANBY

V

SCL1

SDA

R002

1.9V

K104

K103

K101

∗

RESETQ

R716

1.6V

1k

for BG

DVSUP

10K

R704

CF101

220

NC

NC

DVSS

I2C DA

1.7V

I2C CL

1.9V

5.0V

VDDP

3.58/OTH

R101

10

CF102

X

AS

NC

5.0V

TP

NC

TP

TP

TP

C702

3.3V

3.3V

X

NC

0V

C707

100/16

3.3V

Q702

∗

QAX0688-001

XY701

10/50

RESET

4.5/OTH

1KR705

BT

8.6V

R005

5.0V

NC

NC

NC

NC

NC

NC

2

X701

22p

C703

CH

0V

XTALOUT

P.ON MUTE

MSPRESET/

3.3V

5.0
V

1KR706

/

MSPRESET

P.ON MUTE

R102

6.8K

C101

0.0047

R103

2.7K

R006
27K

4.6V

AGC

X

C602

CE42482-103Y

C604

0.1

R603

100

R604

100

12MHZ

1.6V

XTALIN

MICRO

KEYIN

R718

KEYIN

2SC5083/L-P/-T

R602

10n

LC601

QQL244K-4R7Z

SCL

C713

CH

0.1

22p

C704

C705

0V

1.5V

OSCGND

3.3V

ECO_IN

2.8
V

220

R719
220

C715

ECO

N3.58/OTHERS

1.5V

R106

100

Q101

C005

0.0022

QAU0251-001

K108

270

100/16

L601

SDA

10

L702

C710

C709

100/16

∗

3.3V

VDDC

VSSC

X

LED

L101

QQL244J-5R6Z

R104
180

9.0V

2.2V

R105

22

0.0047
C102

0.0047

33/16

TU001

C603

/

P.ON MUTE

MSPRESET

TO CRT SOCKET
PWB CN10T

QGA2501C5-08Z

QQL244K-100Z

0.22

R741

C706

0V

2.8V

VPE

VDDA

BOUT

3.3V

LED

PROTECT

GND(A)

0V

0V

C730

100/16

C105

X

R107

4.7k

C104

0.0047

C109

10/50

C103

R108

2.2k

DAN235K-X

R003

3.9K

C006

∗

XK107

K106
QQR1214-001Y

K105
QQR1214-001Y

0.22

C143

CN00T

GRB

100

0.22

C732

Y730

X

D101

R004

220

C141

C142

X

GOUT

SEC.PLL

X

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

RF AGC

EQ

DLY

APC

AFC

V OUT

RF AGC

C140

OUT

X

R147

X

R148

X

R150

R152

9V

K701

10K

R738

100

R739

2.7V

IBLACK

8.3V

DECDIG

C733

0.1/16

R109

X

Y004

0

Vcc.F

V IN

VCO

V IN

GND

VCO

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

0.1

0.1

BW

R746

C751

33K

C752

C753

R747

10K

2.7k

R737

∗∗∗

R748

R749

C749

10/50

2.6

2.4 4.2 1.9

680P

C725

V

VVV

V

Y

U

2.6V

5.1V

BCL

FBLIN2

4.9V

3.8V

3.0V

0V

4.0V

PHF2

C734

5.0V

R726

4.7K

2.2k

Q103

2.0V

PHF1

GND

DECBG

EWDR.

22KR730

.1/16

0.0022C735

C738

0.0022

R731

1/50

C737

R758

C736

1/50

EW

R727

C720

100K

47/16

5.0V

Q720

0V

SF102

2

∗

QAX0594-001

C106

0.01

SF101

QAX0663-001

C107

0.01

Y001

R110

X

2.2K

C108

X

X

C133

R143

X

X

Q137

C134

X

C136

X

C137

X

C138

X

R146

X

C743

100/16

.047/25

C746

C747

.047/25

.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

100

R756

X

2.2K

R757

C756

2.2K

VDRA+

VDRB_

PROTECT

R728

10K

R144

C132

X

X

C135

R145

X

X

L104

QQL244K-180Z

9.0V
0V

Q111

1

∗

4.3V

R121

X

CF106

QAX0639-001Z

Q108

X

R116

X

R117

1K

R750

100K

C745

39K

CVBSINT

IREF

C755

X

3.8V

8.3V

VP1

3.6V

VSCAP

C739

NFV41CJ-104X

R734

R736

3.8V

IF VOUT

4.6V

AGCout

C007

R735

C741

.1/16

390

33K

3.5V

PIL1

SIF IN1

1.9
V

0.01

C742

.1/16

1.9V

R732

R139

X

R140

X

Q135

R132

X

C130

X

X

Q131

X

R119

1K

Q109

2

∗

3.9V

R114
X

Q107

X

CF103

X

L731

∗

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

X

R141

X

Q132

X

R135

X

R134

R133

X

R120

470

0V

Q110

X

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

V

C740

2.2/50

IC701

IC701

IC701

IC701

R131

X

Q130

X

Q106

X

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

X

CF141

CF142

X

R130

X

Y003

X

Y002

X

R111

R112

X

X

Q104

X

Q105

X

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

∗

7:2SC1740S/QR/-T

∗

BW : BUS WIRE
X:NON MOUNT (OPEN)
0:NRSA63J-0R0X

No.51969

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

QFZ9073-224

X

R917

XY913

XY912

XY911

XY910

!

C906

Y918

Y917

BW

Y916

Y915

BW

Y914

IC901

∗

POWER REGULATOR

OVP

GND

TSD

Vcc

OSC

DRIVE

D903

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

R908

33K

3WOMR

QRL039J-333

C911

220/25

19.6V
D906

EG01C-T2

291V

0V

C908

2.4V

QCZ0364-222

OR

QCZ0325-222

OR

QCZ0122-222

C910
470p

NDC31HJ-471X

D910

NRSA63J-0R0X

9

T551

)

8Vp-p(H

MAIN PWB ASS'Y(2/3
SCH-1503A-R2(AV-21L31

SCH-1504A-R2(AV-25L31

∗DIFFERENCE LIST(∗PARTS

IC480

NOT USEDSCH-1503A-R2

SCH-1504A-R2 680Ω

SCH-1503A-R2
SCH-1504A-R2 47Ω

SCH-1503A-R2
SCH-1504A-R2

SCH-1503A-R2
SCH-1504A-R2

UPC358G2-XE

NOT USED

8.2kΩ

NOT USED

10µF/50V

NOT USED

RGP10J-5025-T3

R492

C480

D953

STR-F6707A/F7

STR-F6709A/F7

NOT USED

NOT USED NOT USED

4.7µF/50V

RU3AM-LFC4

31DF6N-FC5

)

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

33kΩ

C483

D956

2SC4722/NP/ QQLZ016-821

DEG COIL

L01

∗

CNDEG

QGZ5004C1-02

TH901

QAD0134-4R5

QRZ0111-474

C901

QFZ9073-104

LF902

QQR1035-002

C902

QFZ9073-473

C904

0.0022

∗

K902

D902

X

D908
MTZJ27B-T2

D909

∗

T551

!

!

!

QCZ9015-102Z

QCZ9015-102Z

QEZ0199-227

D904
EG01C-T2

R907

56K

ERC30-02L38

RGP10J-TS-T3

3

C915

∗

MY

R911

3.3K

1/2W

96Vp-p(H

!!R915

GSIB460

0.0022

C907

220/25

D911

C917

Y909

X

Y908

X

D901

C903

0.0022

QCZ9015-102Z

C905

R909
470K
1/2W

D907

∗

C914

R904
680
1/2W

R905

D914

∗

3WMFR

R906

X

2WMFR

R913

BW

1/2W

D912

X

1SS133-T2

R912

∗

R910

∗

1/2W

C916

X

VOLTAGE FEEDBACK

T551

150Vp-p(H

6

2

)

!

PC123F2

)

R991

PC901

∗

QCZ9079-102

QCZ9079-102

LIVE

!

T551

!

QCZ9073-332

QSK0061-001

!

C992

!

C991

!

T901

150Vp-p(H

C993

400VAC

RY901

∗

!

Q954

∗

)

)

/AR

)

/AR

4.7kΩ

NOT USED

!

33Ω

C485

22µF/50V 4700pF/1.5kVH

Q352 L480

NOT USED QQR1138-001

390kΩ
120kΩ

R524

27Ω

82Ω

6100pF/1.5kVH

Q480

NOT USED

2SD1408/OY/-LB

47kΩ

NOT USED

270Ω/1W
270Ω/2W

3400pF/1.5kVH

0.011µF/1.5kVH

AV-21L31

AV-21L31
AV-25L31AV-25L31

VDRB_

ABL

HFB

VDRA+

8V

P_ON/OFF

9V

H_DRIVE

32V

5V

C972
47/35
QEHR1VM-476Z

C976

100/16

C977
47/35
QEHR1VM-476Z

R961
22k

2W OMF

2.2k

Ω

4.7k

Ω

4.7µF/250V
10µF/250V

! !

PROTECT

PROTECT

H_DRIVE

D964
MA3330/L/-X

STB

32V

9V

5V

8V

A.VCC

9V

8V

8V

9V

5V

9V

32V

A.VCC

STB

XY505

XY504

XY503

XY502

XY501

2.2

Ω

3.9

Ω

100µF/160V
220µF/160V

C407

NCF21HZ-334X

NCF21HZ-334X

H_DRIVE

0.3V

QCS32HJ-180Z

C402

QCB31HK-682Z

C411

C412

R412

1

1/2W

NCB31CK-104X

1k

Ω

820

Ω

2200pF/50V
1500pF/50V

!

D408

∗

14.4V

C407

C550

R521
100

3

R401

220k

PUMP UP

+VCC

-13.1V

R402

C402

6800p

D402

MTZJ75-T2

C406

.068/100

QFLC2AJ-683Z

K401

BW

R411

220

1W OMF

C413

.056/100

R524

0.1

R522
1K

R425

RGP10J-5025-T3

68k

C401
1/50

IC401

AN5522VERT OUT

THERMAL
PROTECTION

0.9V

-VCC

0.3V

-15.2V

X

C422

1000/35

R407

X

R410
12K

R413

2.7

1W

MY

R414

∗

C484

X

C521

∗

47/35

Q521

2SC2655/Y/-T

0V

D550

3

∗

0.22

Ω

0.15

Ω

NOT USED

470pF/500V

D401

R403

0

R404

X

C403
220/35
QEHR1VM-227Z

C404

14.6V

X

D405
1N4003-T2

C408

0.18
TF

IC401

5

60Vp-p(V

7

IC401

5Vp-p(V

R408

6.8K

C409

R409

X

X

C481

X

R486

∗

R485

9.0V

∗

6.6V

R487

C485

∗

∗

R489

∗

R490

∗

-0.1V

R545

22

1/2W

T521

∗

R526

20.6V

C522

0.0033
MY

C523

0.022

NOT USED NOT USED NOT USED

3.9k

Ω

4.7k

Ω

NOT USED

220µF/35V 220µF/160V

3.3V_STB

5V_STB

A.GND

A.VCC

3

IC401

1

IC401

)

0.7Vp-p(V

2

IC401

)

2Vp-p(V

D968

3

∗

C980

R966

100/16

6.8K

1

D969

3

∗

R967

47K

ISOLATED

C952

QCB32HK-471Z

!

CP

CP951

ICP-N75-Y

D952

ERC30-02L38

D953

C959

OR

OR

MA3068/M/-X

C955

∗

C957

D954
RGP30B-F1

D956

∗

1000/35

QEHQ1VM-108

CP952

IC PROTECT

CP

!

CP953

ICP-N38-Y

IC PROTECT

CP

C960

∗

R953
100

27.7V

D966

6.8

0V

R965

0

C953

!

∗

QQLZ034-460

C979

K951

QQR1214-001Y

QQR1214-001Y

Y951

X

QQR1214-001Y

7

)

K953

∗∗

QCB32HK-471Z

K954

K955

560P 2KV

QCZ0122-561

QCZ0325-561

QCZ0122-222

R952

3.3K

Q521

150Ω

1.2Ω

0.47Ω

0.039µF/400V

0.022µF/400V

QQR1005-004 BW CE40203-00CJ1 QQH0104-001 QQS0117-001 NOT USED QQD0060-002 BW NOT USED QQW0118-001
QQR1137-005

D955

1SR35-400A-T2

R955

33

1W OMF

C954

0.001

C956

∗

C958

∗

∗

1000/25

Y955

Y956

QEHQ1EM-108

L951

46

R963
10K
1/2W

0V

Q953

1

∗

0V

Q952

1

R970

∗

0.6V

15K

R971

R964

X

45Vp-p(H

18K

47K

C

Q521

)

2Vp-p(H

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

1.2

Ω

Ω

0.47

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

0.15µF/250V

0.18µF/250V

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

0.12µF/250V

0.18µF/250V

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

C968

NCB31CK-104X

134.2V

R962

26.6V

560

C978

0.1

B

)

!

4.7

Ω

47

Ω

)

6

)

5VSTB

C962
10/50

IC972

L88M33T-X

3.3V

3.3VSTB

C964

47/16

QEHR1VM-476Z

GND

5.1V

2.7V

R957

6.8
1/2W

L953

QQL244J-5R6Z

C974

C975

0.1

C970

150k
120k

220/16

R960
390

X

L954

QQL244J-5R6Z

C973

100/16

QRL029J-223

B

)

Ω
Ω

0.1

X

C969

D965

1SS133-T2

IC951
SE135N
ERROR AMP.

Q522

2.4Vp-p(H

4.7µF/250V

2.2µF/100V

NCB31CK-104X

QEHR1CM-107Z

T521 T551L540L523 T901 CP952 DY01 K902 K953 L01 V01

EW

R539

X

R538

D595

X

Q523

X

D593

X

C537

R405

6.8K

R406

12K

X

)

)

Y731

X

R480

∗

R482

R481

∗

∗

R484

∗

2.0V

2.0V

1.9V

IC480

*

2.5V

2.4V

R491

∗

Q522

H.OUT

2SD2634-YD

C524

1.5kVH MPP

∗

MY

T551 T551 T551

25Vp-p(H

C480

∗

R483

∗

R492

∗

R493

!

∗

R494

∗

C483

Q480

∗

D521

1.5kVH MPP

C526

D522

400V PP

∗

∗

4810

)

90Vp-p(H

1.8k

Ω

1.5k

Ω

NOT USED

100µF/160V

NOT USED

MTZJ4.3A-T2

X

R537

X

R536XC538

X

R535

X

1%
MF

D480

∗

L480

∗

∗

C525

∗

∗

)

R490R489R487R486R485R484R483R482R481R480R414R377R373R362IC901

!

Ω

8.2M

D480

!

Q524

X

D596

X

D594

X

C539

R534

X

X

1% MF

C529

∗

1140Vp-p(H

250V MPP

TO
MAIN
PWB
CN00T

9V

IK

R
G
B

CN10T

QCB32HK-101Z

C533

1000/25

QEHR1EM-108Z

R528

∗

2W OMF

C531

1000/25

QEHR1EM-108Z

C527

∗

C528

∗

250V MPP

D523

RGP10J-5025-T3

QCB32HK-561Z

R527

10K 3W OMF

QRL039J-103

)

R491

NOT USED

5.6kΩ1kΩ33kΩ2.7kΩ 1.2kΩ5.6kΩ5.6kΩ82kΩ5.6kΩ22kΩ8.2Ω

C351 C353 C356
NOT USED
560PF/50V

ERB06-15-F1

RH3G-F1

NOT USED

RU3AM-LFC4 MA3300/M/-X

Y918

BW

IC351

TDA6107Q/N2

2.2K

R369

R364

150

R351

3

∗

D361

1

470/16

C351

∗

R543

470

1/2W

150

R353

C352

D362

3

∗

D363

Q353

1

∗

C358

R533

R590

C536

0.01
MY

D524

X

C534

RGP10J-5025-T3

QFK62EK-104Z

∗

C353

XD365

100

R380

3

∗

3

∗

D364

R385

R381

100

R382

100

R383

100

D351

3

∗

X

X

!

R532

4.7 1/4W FR
QRZ9017-4R7

X

D553

R592

HV

CN0HV
QGZ5004C1-06

V.DYH.DY

C357

NDC31HJ-101X

L351

QQL03BJ-5R6Z

R367
820
1/2W

X

L524

∗

FR

∗

D359

RGP10J-5025-T3

RGP10J-5025-T3

R361

0
R362

∗

Q351

∗

C356

∗

X

R386

R384

22K

R591

1/2W

C592

∗

2

∗

100p/500

560p/500

150

R350

Q354

∗

Q355

1

∗

D356

3

∗

C535

R531

2.2K

R530

X

R529

∗

2W OMF

C532

X

D554

RGP10J-5025-T3

L523

∗

C530

DY01

∗

DEF YOKE

4.7µF/250V
1µF/250V

100µF/16V

1000µF/16V

D907

31DF6N-FC5 MA3150/M/-X

Y955 Y956

NOT USED BW

BWCE41433-001Z QQR1214-001Y QQW0119-001

NOT USED

CE42446-001

R363

2.2K

2.2K

R354

R365

R368

D357

D358

RGP10J-5025-T3

R377

∗

SG303

SG301

QAF0006-501

Q352

∗

D360

R373

MA3075/M/-X

∗

R374

120K

1/2W

NC

NC

HB

GND

!

T551

∗

FBT

C591

100/10

134.2V

0V

R594

18k

1/2W

R595

2.2k

A51QDX992X002

A59QDF891X002/S

!

SK351

B

TP-47B

BK

G

GK

RK

R

H

H

SG302
QAF0006-501

R363

TP-47G

R365

R368

QCZ0131-222

QAF0006-501

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

SCH-1503A-R2 (AV-21L31
SCH-1504A-R2 (AV-25L31

CN10U

CHGC04-400-G

CN00U

CHGC04-400-G

HEATER

D541

RGP10J-5025-T3

D551

RGP10J-5025-T3

R593

∗

133.8V

Q591
2SA1208/ST/Z1-T
FBT PROTECTOR

TP-47R

QRZ0107-152Z

QRZ0107-152Z

QRZ0107-152Z

C354

C355

QCZ0131-472

TP-E

U

EHV

FOCUS1

SCREEN

C540

0.1
TF
R546

8.2K
1/2W

L540

∗

MA3075/H/-X

C593
47/25

G1G2G3

SK351

0.0047

1.25KV

TO
CRT

R542

∗

1/2W

R541
150k
1/2W

!

R540

∗∗

D592

FBT PROTECTOR

DTC124EKA-X

E1

CRT

GND

)

C541

Q592

NOTE

: 2SC2412K/QR/-X

∗1

: 2SA1037AK/QR/-X

∗2

: MA111-X

∗3

:BUS WIRE

BW
X

:NON MOUNT (OPEN)

0

:NRSA63J-0R0X

!

SG304

QAF0041-272

0V

V01

∗

EHV

FOCUS1

SCREEN

SC

/AR

)

/AR

)

CN00S

GND

FOR ADJ.

X-RAY1
X-RAY2

CONNECTOR

NC
B1

QGA2501C5-05Z

5.0V

No.519692-8No.51969 2-7

PATTERN DIAGRAMS

MAIN PWB PATTERN

MLKJ

9

D911

88

77

66

W391

C914

D912

R912

D903

()

5

R908

C904

FRONT

44

3

2

D901

LF902

1

Q953

HS901

R905

W432

R906

0

M

D907

C917

R910

R907

C902

C901

S901

D965

R909

R902

C916

R991

R914

C918

POWER

L

PC901

C907

W305

R780

R970

IC951

DEG

TH901

LF901

C906

VA901

F901

T4AL 250V

R781

D760

W106

C991

R955

C992

RY901

AV-21L31AV-21L31
AV-25L31AV-25L31

IHFDCBA

J801 J802 J803

L951

D956

C959

K955

R661 R663R664

C661

W422

K952

K951

C954

CP951

CP953

R969

C968

Q954

IC760

R760

R956

R680

C673

R777

R670

R769

D968

C720

D770
Q770

R779

C962

R669

R667

R668

C964

R676
R673
R679
C672

W004

J

R728

R674
R675

R678

C674

R954

D958

D955

K

REMOCON

C953

W338

D771

R691

D

W341

Q687

C656

C655

C977

IC972

W343

IC974

R776

R778

Y602

1012

D652

C972

HS974

W345

W362

R692

W275

R690

W365

C659

W372

W336

W025

C684

D653

C652

C

W354

BASS

C1

R699

W435
L953

W317

W346

W344

C669

C665

W307

B

W320

W373

W012

D682
R688

Q684

R801

R802

IC650

C827C8

29

W257

W306
Y301

AV

R841

C308

Q302

C302
C301

R308

W318

W369

W329

COMB

R726

R705

1

W327

5

W331

64 60

X701

Q702

STEREO

W008

C3

C645

C641

R626

C627

30

C634

R632

R633

VOL- CH+

R832
W388
R834

K701

25

R803

C830

Y302

R720

5

C707

C644

C666

C629

HS650

15

C650

R658

Q686

C683

W380

W359

A

W265

FILTER

C970

R719

W282

4

R711

18

W321

C

W232

C702

R717

R715

Q701

W279

IC602

W013

15 10 1615

R629 R666

32

R622

I

VOL+ MENU

R807 R808

D801

C801

W061

W053

R819
C821
R835

R833

Q301

W276

W274

16

W018

15

C303

10

C732

C703
C704

55 50

C710

R741

65

T

Q111

W311

W332

C640

CF105

CF104

R115

Q107

W385

17

A

20

C631

C635

C632

R818

C833

15 9

L301

W419

R847

11

10

IC130

G

J804

R817

L103

R806

R111
R119

R810

Q801

B

R838

R823

R840

W107

R839

D803

1

D804

W042

IC801

C814

Q8
60

R104

L101

Q304

R3
11

Q303

C305

IC301

Q102

8

W424 W425

C736

2015 25 30

D7
33

R7

45

45

40

C752

W322

R882

Q861

R849
R883

Q109

R1

12

Q1

Q105

6

R113
R132
Q132

Q1
36

R142
R141

15

C141
C140

1

5

R148

GH

CH-

R880

Q137

W437

1
W009

L104

Q110

CF106

CF103

R1
R1

L102

33
34

W309

R130

20

R836

W075

R746

MICON

C133

Y102

TU001

LOCK

BM

32V

R131

Q131

F

5V

W100

Q101

IC701

D

W150

W143

C106

W003

A

W259

W091

W093

W113

W038

W135

W262

R149

W092

W181

W007

W173

W263

W293

W285

W288

W095

W101

W140

W264

W291

W287

A2

BT

AS

SCL

SDA

NC

IF

W114

W290

W283

W284

W268

W261

AGC

R002

R001

C102
R106

C623
C624

W079

R004

C003

R103

C109

Y004

W094

E

32

C760

C742
C745

D731

33

35

C741

R7
34

L731

R136

R137

CF131

Y130

R114

R143

C

S780S781S782S783S784

Y101

C002

W051

C617

W418

W302

C409

C408

R401

W052

W270

R485

C610

IC480

W019

R487

C151

A2

E

R595

R541

R542

W084

U

4

1

L524

CL001

R533

R546

Q524

W054

R534

R535

R530

C535

W350

W316

R410

R403

R404

C480

D480

C484

W328

R602

C621

C605

C614

R154

C612

R771

E

A

R773

R774

V2

J771J772J773 J770

E

R402

R409

C401

C481

IC601

C601

C615

W062

IC401

HS401

D401

C485

C622

W314

R412

C602

R489

R593

R538
R539

D595

D3

R483

R484

R486

S

C606

CN001

D592

W269

R493

LC601

Q592

R406

C537

C412

R151

R529

HS480

C406

Q480

R770

R413

W127

R591

R540

R414

C604

L602

D

D596

D402

R407

CKF1491-CH1-1

UL MARK

L540

D553

D554

C534

C532

6

HV

C413

C530

C542

DEF

D523

R494

HP

5

6

7

C527

C528

GND

#NAME?

#NAME?

HFB

8

R532

C536

4

HEATER

D522

9

/2!

HB

ABL

2

3

GND

1

B1

()

T551

FBT

9

1

6.4.H1

NATTAPONG

C524

C550

R521

T521

COL

10

5

3

B1

C525

C483

C521

2-9No.51969 2-10

No.51969

MAIN PWB (CRT SOCKET) PATTERN

AV-21L31
AV-25L31

C358

D356

R381

R365

TP-47G

Q352

C356

W281

6

D363

SG301

1

R377

2

R386

D360

E3

D362

T

D361

GK

R350

R353

SG302

H

RK

G2

G1

G1

W028

Q351

E2

TP-E

G1

1

BK

/2!

CKF1491-CH1-1

SG303

G1

C354

D357

R363

SG304

C355

0

D358

D359R373

E1

CBA

TOP

()

No.51969 2-11

AV-21L31
AV-25L31

SERVICE NOTE :

2-12 No. 51969

VICTOR COMPANY OF JAPAN, LIMITED

HOME AV NETWORK BUSINESS UNIT 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan

21L31-AR-CK #4
25L31-AR-CK #4

Printed in Japan
VP0206
SW