JVC AV-1400AE AV-14A17 AV-14AMG7.pdf

7/17/2019 JVC AV-1400AE AV-14A17 AV-14AMG7.pdf

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COLOUR TELEVISION

COPYRIGHT © 2007 Victor Company of Japan, Limited. No.YA522007

SCHEMATIC DIAGRAMS

CD-ROM No.SML200706

AV-1400AE, AV-14A17,

AV-14A17/A, AV-14A17/H,

AV-14A17/L, AV-14AMG7/G

BASIC CHASSIS

CQ


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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 theISOLATED(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(NEUTRA

side GND or never measure with a measuring apparatus 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 brok

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

circuit constants may be subject to change for improvementwithout any notice.

NOTE

Due improvement in performance, some part numbers show

in the circuit diagram may not agree with those indicated in

the part list.

When ordering parts, please use the numbers that appear

in the Parts List.

STANDARD CIRCUIT DIAGRAMNOTE ON USING CIRCUIT DIAGRAMS

(7)Ground symbol

: LIVE side ground

: ISOLATED(NEUTRAL) side ground

: EARTH ground

: DIGITAL ground

(6)Connecting method

: Connector : Wrapping or solderi

: Receptacle

(5)Test point

: Test point : Only test point display

Respective voltage values are indicated

: B1

: 9V : 5V

: B2 (12V

(4)Power Supply

Type

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

Others

: [µH]

: As specified

No indication : Ceramic capacitor

(2)Capacitors

Capacitance value

1 or higher : [pF]

less than 1 : [µF]

Withstand voltage

No indication : DC50[V]

Others : DC withstand voltage [V]

AC indicated : AC withstand voltage [V]

Electrolytic Capacitors

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

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

Type

No indication : Carbon resistor

OMR : Oxide metal film resistor

MFR : Metal film resistor

MPR : Metal plate resistor

UNFR : Uninflammable resistor

FR : Fusible resistor

4.INDICATIONS ON THE CIRCUIT DIAGRAM(1)Resistors

Resistance value

No unit : [Ω]

K : [kΩ]

M

Rated allowable power

No indication : 1/16 [W]

Others : As specified

: [MΩ]

3.INDICATION OF PARTS SYMBOL [EXAMPLE]

In the PW board : R209 R209

1.SAFETY

The components identified by the symbol and shading are

critical for safety. For continued safety replace safety ciritical

components only with manufactures recommended parts.

Since the voltage values of signal circuit vary to some extent

according to adjustments, use them as reference values.

2.SPECIFIED VOLTAGE AND WAVEFORM VALUES

The voltage and waveform values have been measured under the

following conditions.

(1)Input signal : Colour bar signal

(2)Setting positions of each knob/button and

variable resistor

(3)Internal resistance of tester : DC 20kΩ/V

(4)Oscilloscope sweeping time : H 20µs / div

: V 5ms / div

: Othters Sweeping time is

specified

(5)Voltage values : All DC voltage values

: Original setting position

when shipped

AV-1400AE, AV-14A17, AV-14A17 /A,AV-14A17 /H, AV-14A17 /L, AV-14AMG7 /G



SEMICONDUCTOR SHAPES

CONTENTSSEMICONDUCTOR SHAPES ......................................................................2-2

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

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

MAIN PWB CIRCUIT DIAGRAM(1/2) ......................................................................................................... 2-7

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

VOLTAGE CHARTS ...................................................................................2-11

WAVEFORMS ............................................................................................ 2-12

USING P.W. BOARD

P.W.B ASS’Y name

MAIN P.W. BOARD SCQ-1024A-H2

AV-1400AE

IC

BOTTOM VIEW FRONT VIEW TOP VIEW

1 N

N1

OUT

E

IN

IN OUTE

1 N

TOP VIEW

1

N

1

N

CHIP IC

TRANSISTOR

BOTTOM VIEW FRONT VIEW TOP VIEW

CHIP TR

E

C

BE C B

C

B EB(G)

E(S)

C(D) E C B

E C B

SCQ-1020A-H2

AV-14A17

SCQ-1022A-H2

AV-14A17/A

SCQ-1021A-H2

AV-14A17/H

SCQ-1023A-H2

AV-14A17/L

SCQ-1018A-H2

AV-14AMG7/G

2-2(No.YA528)



2-4(No.YA528)(No.YA528)2-3

MAIN PWB (1/2)

REAR OUTVIDEO

AUDIO

AC IN

LF901

L941

IF

9V

14V

AUDIO OUT1

SAW

REMOT

V OUT

H OUT

MONITOR OUT

V2

KEY

EXT AUDIO2

AUO MON 1

SCL/SDA

SCL/SDA

SCL/SDA

5V

B1

TU001

TUNER

IC702

MEMORY

Q101

IF AMP

SF101

SAW FILTER

IC921

POWER

REG.

IC9719V REG.

IC972

5V REG.

IC973

5V REG.

D901-D904

T921

SW

TRANSF.

REAR INVIDEO

AUDIO

J001

VIDEO

AUDIO

J001

5V _STB

8V

G OUT

R OUT

B OUT

F901 POWER SW

V_REAR

A_REAR

V_FRONT

A_FRONT

V_MONI

A_MONI

S901

AUDIO

CONTROL

PIF PROCESS

ODS R / G / B

/ Ys / I

AUDIO SW

VIDEO SW

RGBSW

I/O

PORT

CPU

MEMORY

Y PROCESS

VERT. PROCESS

HOR. PROCESS

BASE BAND

PROCESS

CUT-OFF/

DRIVE

V3

EXT AUDIO1

POWER LED

CHROMA

PROCESS

IF AGC

J003

FRONT IN

J004

41,42

57,58

24

32

23

22

45

38

IC701

MAIN CPU / IF PROCESS / VIDEO(Y/C/RGB)PROCESS / DEF.PROCESS / AUDIO PROCESS

BLOCK DIAGRAM



2-8(No.YA528)(No.YA528)2-7

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

IC973

GND

C974

D951

GND

C972

D901

C973 C975

D902

GND

R971 R9 72

GNDD904

D903

T501

R902

Y504

T921

S901R905

Y906

Y903

Y902

Y901

Y503

GND GND

D554

C930

C971

C427

K942

C943

R924

R923

R529

D976

C993

R531

CN0PW

C901

C910

D427

LF901

C925

R921

D930

CNDEG

D425

VA901

R532

R904

C926

F901

R439

C942

C931

C979

R903

Y904

Y905 C992

C991

C907

R453

C904

R935

C978

C429

R443

R526

C905

R933

R901

R922

C929

C927

C922

C932

C909

K901

D927

R934

D931

D921

D925

D933

K941

K943

D943

D942

CP943

CP942

R422

C944

CN

C946

R424

D42

C436

D941

C941

C947

C531

L941

R991

GNDGND

TH901

D975IC972

R979

IC971

R561 C561

D561

Q561D563

R565

R566

C563 C56

C562

C564

R562 R563

R564

R567

R570

D562

Q562

Q563

R951

R525

C523

C526

C424

Q521

Q402

Q

Q401

IC421

IC921

A_

V C C

H E A T E R

5 V

1 4 V

H B

A_

G N D

G N D

D 9 2 8

D 9 2 9

D 9 7 7

C 9 2 4

R 9

2 8

R 9 2 5

C 9 4 5

5 V_

S T B

9 V

A . P R O T

P_

O N / O F F

3 2 V

H_

O U T

V_

O U T

F B P

A B L

8 V

C 5 2 9

C 4 2 6

0.1

100/16

*9

100/25 100/16

*9

X 2.2K

*9

*9

100K

BW

X

X

X

0

X

*3

X

100/25

100/35

*7

150K

*3

330

33/50

1.8

*9

*3

1K

X

3300p

82K

100/16

100K

BW

BW

2.7K

3.9K

100/16

10/50

1

270

4.7

220.1

.1/50

220p

*

*7

X

*3

*9

*9

X

*7

*9

4.7K

1000/25

470p

3.3K

.33

*

*3

X X

X

X

X

X

X

X X

47/25

X

10K 3.3K

22K

X

*1

47K

68

47/25

.01

*1

4 . 7 / 5 0

1 M

1 0 0 0 / 2 5

POWERREGULATION

POWER SW

NOTE) 1. Refer to page 2-11 for voltages of this circuit diagram.

2. Refer to page 2-12 for waveforms of this circuit diagram.

ADJUSTMENTCONNECTOR

MAIN PWB (1/2)SHEET 1

MAIN PWB CIRCUIT DIAGRAM (1/2) SHEET 2



(No. YA52 8)2-9 2 -10 (No. YA5 28 )

W 0 1 3

W008

W 0 3 2

I C 9 7 3

J 0 0 2

I C 7 0 1

T U 0 0 1

W 0 0 1

R743

W085

W033

C943

R552

R 5 8 2

C561

CP943

C947

C942

CP942

C946

Q 5 2 1

Q 5 6 1

C944

D 9

5 1

R951

W007

C 9 7 1

C972

D423

D551

D 5 5 2

D5

61

D 5 8 2

D 9 7 7

C973

D921

D925

D 9 3 0

D942

D943

R971

Q522

R972

IC972

D 9 7 6

D 9 7 5

C5

65

H S 4 2 1

D931

R 9 3 5

C564

R 5 6 1

C563

C975

I C 4 2 1

W 0 1 6

D 5 6 3

D 5 6 4

W 0 4 4

W017

Q562

R 5 5 1

I C 6 0 1

C606

D 5 6 2

W 0 1 8

W019

R 7 4 4

IC971

FR556

R529

C7

48

R564

R562

C 5 6 2

R 4 3 2

R 4 3 3

C 9

7 4

Q4

01

R 4 4 0

R443

05R6

R 5 2 6

R 5 6 3

R554

R569

Q563

K712

R581

R 5 6 7

R568

R570

C747

R 9 0 1

C551

R928

R933

R 9 3 4

W020

W 0 2 1

W022

R 6 0 6

R444

R607

K 7 1 1

W 0 8 7

W 0 0 3

C436

C 9 3 0

H S 6 0 1

W045

C424

C 5 8 1

C 9 2 2

C 9 2 6

K901

W 0 2 3

C555

C 4 3 0

W 0 0 4

C 4 2 7

C428

C924

W002

C 5 5 4

C901

C 9 1 0

C 4 3 5

C 5 5 2

C945

R002

R001

C 5 3 1

R710

W 0 3 9

W 0 0 5

W006

R 7 5 1

W 0 3 4

R 7 1 1

W043

C 4 3 3

C 5 2 3

C978

T501

C 5 5 3

R 7 1 2

Y 5 0 4

C929

C941

C993

R608

R 7 1 3

L 5 5 1

L941

W025

R5 31

Y 5 0 2

R 7 1 4

Q710

D 7 1 0

C925

W026

C 7 1 0

C711

C7

12

C7

13

W027

R 7 1 5

W028

X710

R705 R706

W014

W030

K941

K942

K943

K421

D941

R707 R708

C525

C 7 1 4

W 0 1 5

C 7 1 5

L522

L 7 1 0

K 7 1 0

HS522

R7

50

C979

W 0 3 1

R 6 0 9

R 7 1 6

R717

R 7 1 8

I C 9 2 1

R719

D553

8 1

D 5

C716

C717

C6 08

D 4 2 5

C 5 2 7

C 6 0 9

C604

C718

R 7 2 0

R 9 2 4

C 6 0 5

R 9 2 5

R 7 2 1

R422

C 6 1 1

R424

03

D6

D 6 0 2

R 7 2 2

R 4 3 1

R 4 4 1

R442

R 4

5 3

R565 R5 66

R 5 8 3

R 7 2 3

R724

R 6 0 4

L 7 1 1

C 7 1 9

C 4 2 3

C6

07

C7 20 C 1 1 3

C N 0 0 U

C N 0 H V

C 7 2 1

CN0S1

T522

T 9 2 1

C 7 2 2

C 7 2 3

C 6 1 2

C 5 2 9

D 9 3 3

C 9 3 2D4

27

C429

D 7 1 1

D 7 1 2

R 5 3 2

D421

W035

W042

C 5 2 6

R528

W 0 4 1

C 5 3 0

D 7 1 3

R 5 2 5

C 7 2 4

C725 C 7 2 6

27

C7

C 7 2 8

25

R7

R7 26

C426

R 9 7 9

R 7 2 7

R728

R729

R 7 3 0

D 7 1 4

D715

Q 1 0 3

Q 1 0 4

CF101

R 1 1 0

R585

C 5 8 2

R 1 1 1

C114

1 2

R 1

LF901

R

5 2 1

D719

R113

R114

R 1 1 5

C111

C112

Y603

W086

Q605

W 0 8 8

Q604

R610

R 6 1 1

R6 12

R439

Q402

Y 5 0 1

W 0 8 9

R 6 1 3

R 6 1 4

R615

C 6 1 0

03

Q6

Q601

Q6 02

C601

C602

C 6 0 3

D601

R601

R602

R603

R616

R617

Y607

C N 0 0 C

R

7 4 8

J 0 0 1

CN0S3

J 0 0 3

J 0 0 4

R 7 4 9

S701S702S703S704S705

I C 7 0 2

CN0S4

W071

W0

65

C 7 2 9

C730

C 7 3 1

C 7 3 2

C 7 3 3

R731

R732

L 7 1 2

C 7 3 4

C 7 3 5

R 7 3 3

C 7 3 6

C 7 3 7

R 7 3 4

C 7 3 8

C739

R 7 3 5

R 7 3 6

L 7 1 3

4 0

C 7

C 7 4 1

L 7 1 4

C 7 4 2

C743

R737

R 7 3 8

R 7 3 9

R 7 4 0

D 7

1 6

D7 17

D7 18

CN00T

L715

44C7

C745

R 7 4 5

R 7 4 6

R 7 4 1

R 7 4 2

C746

R747

R 0 0 3

R 0 0 4

R005

C 0 0 1

C 0 0 3

C 0 0 4

C005

C007

C006

C002

C008

L001

K001

Q 1 0 1

Q 1 0 2

C102

C101

C 1 0 3

C 1 0 4

C105

R 1 0 1

R 1 0 2

03

R1

R104

R 1 0 5

R106

R 1 0 7

L101

L 1 0 2

D1 01

C108

C106C107C109

R 1 0 8

R109

S F 1 0 1

Y 1 0 1

C749

C 8 0 7

C804C805

C806

C 8 0 8

Q 8 0 1

Q 8 0 2

C809

C810

R802

R 8 0 3

R806

R 8 0 8

R809

R810R811

C801

02

C8

C803

R801

W058

W059

IC704 D701

R701

C811 D 8 0 1

D 8 0 2

D803

Y604

Y605

Y606

C 7 5 0 W050

W051

W052

W053

W054

W055

W 0 5 6

W057

W060

W061

W062

W063

W064

W 0 6 6

W 0 6 7

W 0 6 8

W069

W 0

7 0

W 0 7 3

W072

W075

W 0 7 6

W 0 7 7

W078

W 0 7 9

W080

W081

W082

W083

W084

W090

W091

W092

W093

W 0 9 4

R618

W046

W049

W048

4 7

W 0

W097

D 9 0 1

D902

D 9 0 3

D 9 0 4

R903

R 9 2 2

C991

W 0 0 9

R9

W 0 1 0

R991

C909

V A 9 0 1

CNDEG

C904

C905

R117

C 9 0 7

C992

TH901

FC901

R703

FC902

R704

R904Y904

Y905

C701

W 0 1 1

W 0 1 2

W 0 4 0

R584

C702

W0

36

W 0 3 7

W038

C L 0 0 1

C L 0 0 2

Y903

Y 9 0 2

Y 9 0 1

Y906

W 0 9 9

K002

R 9 0 5

HS971

D 5 5 4

K 6 0 1

R902

R118

D720

D721

Y 7 0 3

D 9 2 8

D 9 2 9

Y701

Y601

Y001

W 0 9 8

Y 7 0 2

C613

PATTERN DIAGRAMSMAIN PWB PATTERN

FRONT


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MODEDC (V)

PIN NO.MODE

DC (V)PIN NO.

IC421

1 3.7

2 25.9

3 1.6

4 0

5 0

6 25.9

7 3.7

IC601

1 19.0

2 0

3 0

4 0

5 9.7

6 0.8

7 0

8 20.1

9 13.3

IC701

1 NC

2 NC

3 5.1

4 0

5 5.1

6 2.2

7 2.0

8 0

9 5.1

10 0

11 0

12 1.0

13 2.0 14 5.5

15 4.0

16 4.7

17 7.9

18 0

19 2.5

20 2.4

21 2.5

22 3.8

23 2.4

24 2.5

25 0

26 0

27 4.5

28 0

29 3.2

30 0

31 3.2

32 3.9

33 0

34 0

35 0 36 0

37 2.1

38 0

39 0.3

40 0

41 1.9

42 2.0

43 0

44 2.3

45 2.6

46 2.3

47 4.8

48 2.0

49 3.3

50 0

51 2.0

52 2.1

53 0

54 0

55 5.1

56 5.0

57 5.1 58 5.1

59 5.1

60 5.1

61 0

62 NC

63 5.1

64 0

IC702

1 0

2 0

3 0

4 0

5 5.1

6 5.1

7 0

8 5.1

IC704

1 4.9

2 5.1

3 0

IC921

1 307.5

2 NC

3 0

4 0

5 31.9

6 3.6

7 0.8

IC971

1 15.5

2 8.9

3 0

4 4.7

IC972

1 0

2 7.3

3 5.0

IC973

1 5.1

2 0

3 15.5

Q101 1.5

E 8.9

C 2.2

B

Q102

E 0

C 0

B 4.9

Q401

E 0

C 0 B 4.5

Q402

E 0

C 4.9

B 0

Q521

E 0

C 9.9

B 0.3

Q522

E 0

C 115.3

B 0

Q562

E 0

C 5.1

B 0

Q563

E 115.7

C 45.9

B 115.6

Q601E 15.3

C 0

B 15.4

Q602

E 0

C 0

B 0

Q603

E 0

C 0

B 0

Q604

E 0

C 0

B 0

Q605

E 0

C 14.5

B 0

Q710

E 5.1

C 5.1 B 4.5

Q801

E 3.3

C 0

B 2.6

Q802

E 0

C 0.4

B 0

TU001

1 4.3

2 NC

3 0

4 5.1

5 5.1

6 4.9

7 4.9

8 NC

9 34.1

10 NC

11 0

MODEDC (V)

PIN NO.

Q351

E 1.5

C 136.9

B 2.0

Q352

E 1.4

C 142.5

B 1.9

Q353

E 1.6

C 134.6

B 2.1

Q354

E 8.7

C 0

B 8.9

<MAIN PWB> <CRT SOCKET PWB>

VOLTAGE CHARTS


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WAVEFORMS

-MAIN PWB-(SHEET1)

-CRT SOCKET PWB-

IC701-50

(H)

IC701-51

(H)

IC701-52

(H)

IC701-6

(1µs)

IC701-45

(H)

IC701-16

(V)

3.0 Vp-p 3.0 Vp-p 3.2 Vp-p 4.0 Vp-p 3.0 Vp-p

2.0 Vp-p

3.0 Vp-p

IC701-12

(H)

IC701-13

5.0 Vp-p

(H)

IC421-1

0.5 Vp-p

(V)

IC421-3

25 Vp-p

(V)

IC421-5

60 Vp-p

(V)

IC421-6

30 Vp-p

(V)

Q521-C

38 Vp-p

(H)

Q521-B

1.0 Vp-p

(H)

Q522-C

1000Vp-p

(H)

Q522-B

2.0 Vp-p

(H) (H)(H)

T522-5

220 Vp-p

T522-9

220Vp-p

(H)

T522-7

25 Vp-p

Q351-C Q352-C Q353-C

(H)

90 Vp-p90 Vp-p

(H) (H)

100 Vp-p

(SHEET2)

(SHEET1)



(No.YA528)

Display Category 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan

Victor Company of Japan, Limited

Printed in Ja

JVC AV-1400AE AV-14A17 AV-14AMG7.pdf

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Transcript of JVC AV-1400AE AV-14A17 AV-14AMG7.pdf