JVC AV-14F702 Schematics

A

SCHEMATIC DIAGRAMS

COLOUR TELEVISION

AV-14F702

CD-ROM No.SML200111

V-14F702

No. 51912 Nov. 2001

AV-14F702 STANDARD CIRCUIT DIAGRAM

n NOTE ON USING CIRCUIT DIAGRAMS

1.SAFETY

The Components identified by the symbol  are critical for safety. For continued safety, replace safety critical components only with

manufacturers recommended parts.

2.INDICATION OF PARTS SYMBOL [EXAMPLE]



In the PC board :R1209¨R209

3.NOTE FOR REPAIRING SERVICE

This models power circuit is partly different in the GND.

Please, 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 with a measuring apparatus

( oscilloscope, etc.) the LIVE side GND and ISOLATED(NEUTRAL) side GND at the same time. 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 circuit constants may be subject to change for improvement without any notice.

CONTENTS

SEMICONDUCTOR BASE CONNECTIONS

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2

BLOCK DIAGRAMS

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3

CIRCUIT DIAGRAMS

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5

MAIN PCB MICON/TUNER SCHEMATIC DIAGRAM MAIN PCB CHROMA/IF SCHEMATIC DIAGRAM MAIN PCB DEFLECTION SCHEMATIC DIAGRAM MAIN PCB POWER SCHEMATIC DIAGRAM MAIN PCB SOUND SCHEMATIC DIAGRAM MAIN PCB AV SCHEMATIC DIAGRAM COMB FILTER PCB SCHEMATIC DIAGRAM CRT/SVM PCB SCHEMATIC DIAGRAM

PATTERN DIAGRAMS

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21

MAIN/ PCB PATTERN COMB FILTER PCB PATTERN CRT/SVM PCB PATTERN

WAVEFORMS

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¥¥¥¥

27

AV-14F702

Nov. 2001 No.51912

AV-14F702

C

E

AV-14F702 STANDARD CIRCUIT DIAGRAM

n NOTE ON USING CIRCUIT DIAGRAMS

1.SAFETY

The Components identified by the symbol  are critical for safety. For continued safety, replace safety critical components only with

manufacturers recommended parts.

2.INDICATION OF PARTS SYMBOL [EXAMPLE]



In the PC board :R1209¨R209

3.NOTE FOR REPAIRING SERVICE

This models power circuit is partly different in the GND.

Please, 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 with a measuring apparatus

( oscilloscope, etc.) the LIVE side GND and ISOLATED(NEUTRAL) side GND at the same time. 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 circuit constants may be subject to change for improvement without any notice.

CONTENTS

SEMICONDUCTOR BASE CONNECTIONS

¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥

¥¥¥¥¥¥

2

BLOCK DIAGRAMS

¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥

¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥

3

CIRCUIT DIAGRAMS

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¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥

5

MAIN PCB MICON/TUNER SCHEMATIC DIAGRAM MAIN PCB CHROMA/IF SCHEMATIC DIAGRAM MAIN PCB DEFLECTION SCHEMATIC DIAGRAM MAIN PCB POWER SCHEMATIC DIAGRAM MAIN PCB SOUND SCHEMATIC DIAGRAM MAIN PCB AV SCHEMATIC DIAGRAM COMB FILTER PCB SCHEMATIC DIAGRAM CRT/SVM PCB SCHEMATIC DIAGRAM

PATTERN DIAGRAMS

¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥

¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥

21

MAIN/ PCB PATTERN COMB FILTER PCB PATTERN CRT/SVM PCB PATTERN

WAVEFORMS

¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥

¥¥¥¥

27

SEMICONDUCTOR BASE CONNECTIONS

DIODE

CATHODE

1N4937 11E1-EIC RM11C-EIC 1SS355 TE-17 SLR-342VCT32 1SS133T-77 30DF6-FC RU-4AM AU02A-EIC RU2YX-V1 SB290S MTZJ11B T-77 MTZJ12B T-77 MTZJ27B T-77 MTZJ33B T-77 MTZJ5.1B T-77 MTZJ5.6B T-77 MTZJ6.2B T-77 MTZJ9.1B T-77 RS-4FS

IC

OEC7055B M62420SP AN5829S S-24C08ADPA-01 NJM2150AM TB1253N MM1311AD

1

ANODE

1

2

3

PST600C KIA7805API STR-G6623 AN5276 TC90A45F

1

7

AN5522 2SA1015Y(TPE2) 2SC1740SP(R,S) TP 2SC4159(D,E) 2SC2621(D,E)-RAC

1

2

3

KIA7809API

TRANSISTOR

E

B

2SA1624E-AA KTA1273_Y 2SC1815Y(TPE2) 2SD734(E,F)-AA

E

C

2SA1037AKT146R,S LTV-817M-VB 2SD2499(LB0EC1) 2SC2412KT146 R,S 2SC2814(F3,F4)-T KRA102SRTK KRA104RTK KRC102RTK KRC111RTK

2-2

B

1

5

B B

B

C

No.51912

1

C

E

C

B

AV-14F702 AV-14F702

BLOCK DIAGRAM

DEFLCTION SIGNAL AUDIO SIGNAL TUNER AUDIO SIGNAL G. SIGNAL COLOR SIGNAL

LUMINANCE SIGNAL TUNER VIDEO SIGNAL B. SIGNAL

R. SIGNAL

38

Q 102

H-BUFFER

33

V OUT

FBP IN

31

Q 109

SYNC SEP

CHROMA IC IC201 TB1253N

H OUT

ABCL

34

28

16

B OUT

TU001

IF 11

6

IF IN

G OUT

15

7

SCL

SDA

4

5

25

SCL24SDA

IF IN

R OUT

14 42 47

C IN

YUV IN

43 44

CVBSLNT IN

51

20

21

22

IF DET OUT

55

MICON IC IC101 OEC7055B

6

1

39

37

52

51

50

14

DIGITAL COMB FILTER IC

IC1501

TC90A45F

SYNC

H SYNC

SCL

SCA

OSD R

OSD G

OSD B

18

SOUND DECORDER IC

30

MEMORY IC IC199 S-24C08ADPA-01

6

5

19

IC902

AN5829S

21 22

RESET IC IC103 PST600C

3

IC 503 KIA7805API

3

IC 502 KIA7809API

3

AT+5V

P.CON+9V

9

10 SCL

SPEAKER

SP351

L

12 7

SOUND AMP IC

2 5

14 7

NJM2150AM

20 1

14

SDA

TONE CONTROL IC

19

SPEAKER

SP352

R

HEAD

PHONE JACK

IC353

AN5276

BBE

IC301

7

IC303

M62420SP

2

Q 801, Q 810

RED AMP

Q 802, Q 811

GREEN AMP

Q 803, Q 812

BLUE AMP

1

V.OUTPUT IC

IC401

AN5522

5

R

G

B

Q402, Q405

H. OUT

Q 202, Q 203

TV BUFFER

3

9

DY

4

13

15

18

SCL

17

SDA

30

32

Q1504

7

CRT

V801

8F4

BUFFER

HV

S

F

10

FBT

FB401

7

4

6

9

1

+14V

+180V

31

25

22

20

SW. REG. IC

IC501

STR-G6623

4 1

24 23

AV SWITCH IC

MM1311AD

27 29

IC701

Y

9

C

6

Y

3

C

5

L

2

R

4

V

1

714 15 13 8 10

V

R

L

T501

5

3

V

R

L

16

13

SOUND+B

+B

YUV IN

S-JACK

LINE1

LINE2

VIDEO3

No.51912

2-3 2-4

No.51912

CIRCUIT DIAGRAM

yy



y

MAIN PCB MICON/TUNER SCHEMATIC DIAGRAM

yy



ACCESORY

BT001

R6P(AR)XICI

R143

C141

TM101

EUR524339

27K

S813X

336.3V KA

W812W814

W804

0.36

S813Y

RED LED

ON TIMER/POWER ON

D109

SLR-342VCT32

CH DOWN

0

EMERGENCY DET.

Q104

KRC111RTK

0

R152

1.2K

4.8

BT002

R6P(AR)XICI

FROM CHROMA/IF

SYNC_OUT

AFT_OUT

FROM DEFLECTION

V.OUT1 TV_MUTE

AFC

X-RAY BBE_SW

FROM POWER

P.CON+9V AT+10V

GND_POWER

P.FAIL

EMERGENCY1

FROM AV

CV_IN

S812X

PIC-28143SY-2

R126

2.7K

SW102

SKHVBED010

D106

1SS355

0

SYNC SEP.

Q107

0

2SC2412K

OS101

B+

Vout 123

5.0

4.9

R111

C132

R101

560

SW104

VOL DOWN

S802X

GND

0

1016V KA

C123

47

R127

4.8

V-BUFFER

Q101

2SC2412K

C112

0.0022 B

CH

820P

POWER

SKHVBED010

1K

0

C138_1

R150

4.7K

SW105

SKHVBED010

EMERGENCY DET.

KRA102SRTK

C122

150V KA

C121

200P CH

C128

0.001 B

Q105

22P CH

0.01 F

CH UP

C136

C118

R129 2.2K

0.3

0

R104

560

SW101

SKHVBED010

0

R102

1K

R106

15K

C124

0.1 B

C137

22P CH

C119

0.68 TF

22006.3V YK

R128 33K 1/4W

SYNC SEP.

2SC2412K

0

VOL UP

0

5.0

zz

z

zz

R131

Q109

R103

SW103

H-BUFFER

Q102

2SC2412K

10K 1/4W

R114

2.2K R116

2.2K

SKHVBED010

1M

R115

47K

R151

4.7K

R132

R136

R130

4.8

0

15K

4.7K

C107_1

X101_1

100CT8R005

1

820

0

MICON IC

110111213141516171819 220212223242526

0

3

4

5

6789

0

NC

0

IC101 OEC7055B

H SYNC

V SYNC

NC

REMOCON

TIM2

SYNC

KEY 1

KEY 2

X RAY

AFT

GND

NC

P FAIL

S.OUT

S.CLK

AVCC

HLF

RVCO

VHOLD

CVIN

CNVSS

X.IN

X.OUT

H TONE OUT

SPOT KILLER

4.8

R117

10K

4.9

R118

0

10K

0.3

5.0

2.5

0.01F

4.8

R112

10K

R113

10K

5.0

1.7

3.5

2.8

2.3

1.9 3.3

W823

AV-14F702 AV-14F702

R001:X-R3X181273J

R154

10K

0

OSD R

0

OSD G

0

OSD B

OSD BLK

X-RAY TEST

NC

EXT MUTE

TV MUTE

BBE H

IIC OFF

NC

POWER

SCL1

SCL2 (PIP)

SDA1

SDA2 (PIP)

DEGAUSS H

AV2

AV1

RESET

OSC2

OSC1

VCCVSS

50 51 52

0

4.9

0 NC

5.0

0

40 41 42 43 44 45 46 47 48 49

5.0

0

5.0

0

4.8 NC

0

0 NC

0

31 32 33 34 35 36 37 38 39

NC

5.0

30

3.2

5.0

27 28 29

R148

1K 1/4W

2

S807Y

0

L101

2.7

2.7uH

0

D102

1SS133

R107

1K 1/4W

R108

2.2K

R109

2.2K 1/4W

LED SW

Q108

2SC2412K

R149

1K 1/4W

C114

39P CH

C113

39P CH

S812Y

R123

4.7K R122

4.7K R121

4.7K

W805

R125

47K

R119

47K

R124

47K

R110

C108_1

270P B

C109_1

270P B

C120

10K

W822

TU001 TECC1040PG32D

IF 11

14 15

W801

1B

1.3

W858

C008_1

R139

1K 1/4W

R140

1K

R141

1K 1/4W

D107

1SS133

0

R142

10K 1/4W

4

5.0 5.0 5.0 5678

SDA

VSS

X-0145K00055

NC 10

0

NC

30.0

0.01 F

C004

0.022 M

R001

15.9

X-RAY TEST

0

KRC102RTK

R138

1K

3

0

SCL

E2

0000

BTL 9

0

D001

27K 1W

Q103

C101

0.022 B

MODE

E1

BPL

8

7

NC

5.0

MTZJ33B

C001_1

D104

VCC

E0

1234

V.S 6

NC

R006

C002

4706.3V YK

0.01 F

1SS133

IC199

MEMORY IC

S-24C08ADPA-01

AGC

SDA 5

5.0

270

NC

SCL

ADRES

2

3

4

5.0

R007

1

12 13

NC

4.6

6.2

1.3

C007_1

270

0.01 F

AGC

TP001

C003

2.250V KA

C140

39P CH

12345

GND

TEST POINT

CP101 173979-6

I2C SCL

R133

6

AGC

R.OUT

I2C OFF

I2C SDA

RESET IC

IC103 PST600C

VCC GND V.OUT

123

05.0 5.0

D103

10K

C111

C116

0.68 TF

150V KA

1SS133

C117

0.68 TF

R134

10K

FROM/TO CHROMA/IF

R.OUT

AGC

SCL

SDA

IF

OSD_R

OSD_G

OSD_B

OSD_BLK

TO DEFLECTION

X-RAY_TEST

FROM/TO AV

SCL

SDA

EXT_MUTE

FROM/TO SOUND

SCL

SDA

FROM/TO POWER

POWER

GND_SIGNAL

P.CON+5V_W/BL

+B

AT+5V

DEGAUSS_H

PCB010 TMA510

THE DC VOLTAGE AT EACH PART WAS MEASURED

NOTE:

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

No.51912 No.51912

CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY

2-5 2-6

ARESINCE THESE PARTS MARKED BYCAUTION:

DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES

ETANTLES PIECES REPAREES PAR UNATTENTION:

R.SIGNAL

CAUTION: DIGITAL TRANSISTOR CAUTION: DIGITAL TRANSISTOR

yy



y

MAIN PCB CHROMA/IF SCHEMATIC DIAGRAM

yy



FROM/TO AV

C.OUT

Y.OUT

TUNER_VIDEO

FROM/TO AV

CD701B

CH243001

1

2

3

4

R223

2.4

0

5

C227

150

TV BUFFER

Q203

2SA1037AK

3.1

R213

R214

0.001 CH

L204

12uH

330

390

TV BUFFER

Q202

2SC2412K

R210

150

CF203

EFCT4R5MW5

S803X

3.5

R211

AV-14F702 AV-14F702

zz

z

zz

S802Y

100010V YK

C640_1

C607_1

0.1 B

C IN

W842

W840

R601

180K

150V KA

C608_1

C633

0.01 F

4041424344

CVBS OUT

BLACK DET FILTER

0.1 B

DIG GND

L205

470

R215

0.2250V KA

C211

LOOP FILTER

47uH

C213

10010V

YK

C212

0.1 B

C214

V REF

IF VCC(9V)

S803Y

1016V KA

C215

DE-EMPH

MTZJ12B

D201

C216

33P CH

DC NF FILTER

1016V KA

C634

EXT AUDIO IN

0.22 B

9.0

3.7 AUDIO BUFFER

3.1 Q201

2SC2412K

1.2K

R203

9.0

4.1

3.3K

R212

220

2.2K

R204

C210

6

0 9.0

IF GND

0.0022 B

R205

100

4.1 2.4 2.4 3.7 2.8 3.6 2.4 2.5 1.9 2.4 2.5 2.5 2.5 2.7 1.5 6.0 4.9

IF DET OUT

7

C601

0.1 B

CVBS LNT IN

Y CLAMP FILTER

150V KA

C604

4546474849550515253545556

APL DET FILTER

R74775R750

C605

0.1 B

U IN

CVBS EXT IN

75

C606

V IN

S804YS804X

L601

47uH

910

1K

R602

C615

V OUT

C611_1

V RAMP

10010V

0.47 MMTV

8

09.0

R603

YK

2.250V KA

C612

7.1 4.0 2.1 0 6.0 3.4 2.0

H VCC(9V)

H AFC FILTER

R604

3.3 K

470

H OUT

10K

R605

W830

C609_1

SYNC OUT

R632

0.0 1 B

X-RAY

2.2K

R607

150K

R608

270 1/4W

FBP IN/GP OUT

C638

30313233343536373839

DIG VDD

100P CH

C616

29

EW OUT

11

4716V KA

0.01 F

C617_1

FROM/TO MICON/TUNER

SYNC_OUT

SDA

SCL

OSD_B

OSD_G

OSD_R

OSD_BLK

R.OUT

FROM POWER

GND_SIGNAL

P.CON+9V

P.CON+5V

GND_POWER

FROM/TO MICON/TUNER

AFT_OUT

AGC

IF

CF204

MKT47.3MC110P-TF

W844

R201

CF201

1K

R202

EFCT4R5YS5A

C201_1

R217

R218

CHROMA IC

IC201 TB1253N

SIF/H CORR IN

IF VCC(5V)

VCO ADJ FILTER

AUDIO OUT

AFT OUT

IF IN

1 10 111 12 13 14 15 16 17 18 192 20 21 22 23 24 25 26 27 28

1K

0.01 F C202_1

R221

470

R219

6.8K

6.2

1.3

0.6

68

2.2K

R220

3

4

5.0

3.0 0 0 0 0.1 2.7 3.2 2.1 2.0 2.9 1.6 4.8 4.8 4.8 0 2.2 0.1 2.2 2.2 2.2 1.1 6.0

1016V KA

10016V YK

C204

C203

L602

0.01 F 100uH

L201

100uH0305

C220_1

220 1/4W

0.1 F C221_1

L203

2.2uH

0.01 F

PRE AMP

Q204

2SC2814

6789

C206

0.1 B C218_1

L202_1

0.82uH

ELF0505

R207

2.2K

C207

5P CH

C205

3P CH

OUTOUT G IN IN

CF202

SAFGP45M7VHCZR

0.01 F

C208_1

IF AGC

IF IN

0.01 F C209

W839

12345

0.4750V KA

R209

RF AGC

33K

W849

12

C222_1

S807X

X601

0.01 F

C627

0

X'TAL(3.58MHz)

APC FILTER

W847

100CT3R505

C629

0.0022 B

C630

C637

3P CH

8P CH

R619

W848

R631

1.2K

R637

1.2K

D611

1SS133

4.2

SWITCHING

Q604

KRC111RTK

0

CW OUT

YC VCC(5V)

R OUT

G OUT

B OUT

YC GND

SVM OUT

YS/YM IN

EXT R IN

EXT G IN

EXT B IN

RGB VCC(9V)

SCL

5.0 9.0 9.0

0.2250V KA

33K

D613

1SS133

C618_1 0.01 F

C602

0.1 B

S806Y

D614

1SS133

C619

L604 47uH

4706.3V YK

R609

2.7K

R610

R612

100

R611

R613

MTZJ6.2B

D603

D604

13 14 15

R614

100

D602

2.7K

MTZJ6.2B

R615

1.8K

C620

C623_1

C621

C622 0.1 B

0.1 B

0.01 F

L603

C624

47uH

10010V YK

R616

5.0 5.0

C631

100

39P CH

R617

SDA

EHT IN

IK IN

ABCL IN

R625

150K C636

0.1 B

C632 39P CH

100

R624

1.5M

W816

R618

C625

270K

4.750V

D605

C626

KANP

0.012 B

C642

11E1-EIC

3.350V KANP

C644

0.01 B

FROM/TO DEFLECTION

V.OUT2

H.OUT

AFC

EW_OUT

ABCL

B.OUT

G.OUT

R.OUT

FROM/TO AV

FSC_OUT

TUNER_AUDIO_L

TUNER_AUDIO_R

THE RESISTOR MARKED F IS FUSE RESISTOR.NOTE: THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP IS NON POLAR ONE.

THE DC VOLTAGE AT EACH PART WAS MEASURED

NOTE:

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

No.51912

C935

4.750V KA

NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

470

R904

AUDIO_L

TP901

R905

470

2-7 2-8

C966

0.01B

C967

0.01B

2.3 2.3 2.3 2.3NC0 5.0 5.0 0 3.7 3.6 2.6 3.7

AGC

Matrix

De-Emph

75us

Cancel Offset

Expand

Cancel

IC902 AN5829S

SOUND DECORDER IC

220K

R906

Wide Band

Offset

2.3

1 10 1 1 1 2

2

0 2.3 2.3 2.2 2.2 0.4

C959

C965

0.01 B

4.750V KA

C917

2021222324

DAC

OUT SW

Switch

(L-R)/SAP

Filter SAPout

3456789

C919

0.01 B

4.750V KA

C918

R908

R907

100 1/4W

IIC Decoder

ZAP

L-R DemodL-R Filter

L+R Filter L+R Demod

fH.2fH Trap Filter

RMS Det

Wide Band

1050V KA

2.250V KA

C921

C922

C926

100 1/4W

GND

St.PLL

Cancel Pilot

Filter

Wide Band

Expand

dbx De-Emph

Spectral

Vcc

5.1 2.4 2.4 0.4 2.3 3.4

0.3350V KA

C925

0.022 B

0.047 B

Filter Stereo

C927

C928

Pilot

0.022 B

0.1 B

Det

Filter Noise

Filter

Spectral

RMS Det

Spectral

C929

R916 4.7M

Input

C930

3.350V KA

VCA

Filter

SAP

0.1 B

C931

13141516171819

Det SAP

Demod

SAP

Det

Noise

C932

C924

0.1 B

CAUTION: DIGITAL TRANSISTOR

TUNER AUDIO SIGNAL TUNER VIDEO SIGNAL LUMINANCE SIGNAL COLOR SIGNAL

0.1 B

10010V YK

L901

22uH

DEFLECTION SIGNAL R.SIGNAL G.SIGNAL B.SIGNAL

PCB010 TMA510

No.51912