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56 

12  SCHEMATIC DIAGRAM

 

 

 
 
 

 

1

2

3

4

5

6

7

8

9

10

11

1

2

3

4

5

6

7

8

9

1

2

3

4

5

6

7

8

ZD983

D

G

S

D

G

S

R850

R846

1

2

3

4

5

6

1

2

3

4

5

6

R895

R847

R849

C831

1

2

3

4

5

6

7

8

9

10 11

C832

R848

R851

C833

C863

C834

C885

C886

CS0

P32

P31

1

2

3

4

5

6

7

8

9

10

1

2

3

4

5

6

P21

1

2

3

4

5

1

2

P15

12V

P13

P19

1

2

3

4

5

6

1

2

3

4

5

6

VS

VS

7V

B+

B+

B+

RO

HT

CONT

CONT

BD

BO

FB

G/D B/D

R/D

PM1+PM2

PM1+PM2

SENSE

SENSE

63V

6.3V

6.3V

6.3V

6.3V

GD

GO

H-OUT

H-OUT

ABL

ABL

ABL

GB

GB

RB

RB

DEG

DEG

BB

BB

F.B

F.B

F.B

F.B

HREF

HREF

5V

5V

5V

5V

5V

HS

HS

VDY

VDY

VOUT

VOUT

EWOUT

EWOUT

-12V

-12V

-12V

-12V

HOUT

HOUT

V-OUT

V-OUT

V-OUT

BOUT

BOUT

BOUT

CTRL

CTRL

CS1

CS1

CS0

CS0

CS0

R

R

R

SDA

SDA

SDA

SDA

SDA

G

G

G

15V

15V

15V

15V

15V

15V

15V

15V

15V

15V

75V

75V

75V

75V

B

B

B

G1

G1

OFF

OFF

SCL

SCL

SCL

SCL

SCL

MUTE

MUTE

RD

P22

6.3V

79A761-1-C

715A883-XX

715A793-1A

CRPC-S761V-2A

S761V-2A-01-A

P/N

OCT-31-01

S761V-2A

CSO

P22

P21

12V

05/28/2001

2

05/03/2001

VDY

HLCK

HOSCF

HPPL2

C0

HGND

R0

PLL1

HPDSF

MOIRE

VGND

VAGP

VOSCF

VEHT

HEHT

TDA9115

56A573-510

3.2

3.3

2.5

5.6

2.5

5.6

2.4

5.6

2.4

7.8

0.6

0.3

2.5

3.9

2.6

16.1

5

0.5

0.3

3.1

4

1.6

3.6

3.3

2.9

8.1

3.1

4.7

11.7

2.6

5.1

6.4

2

2.8

2.8

4

5.6

1.2

1.1

4.4

4.6

5

5

5

5

3

3

56A1125-74

10

11

10

10

12

9

8

4

2

6

7

8

9

10

35K~40K

CTRL

MTV016N

56A1131-5

1N5408

93C52-55P-52T

WT62P1

8

10

5

1

1

LM1279AN

2

3

1

5

7

6

8

4

LM2439

56A551-2

IC802

O/P

O/P

O/P

GND

I/P

I/P

I/P

VBB

VCC

B-BIAS

G-BIAS

CRT

9

10

11

6

8

7

5

R-BIAS

IC801

9

8

9

10

11

12

13

14

15

16

7

6

5

17

18

19

20

4

3

2

1

CLAMP

DRIVE

B

O/P

B

DRIVE

G

O/P

G

VCC2

DRIVE

R

O/P

R

B-OSD

G-OSD

CONT

CAP

B-CLAMP

I/P

B

CAP

G-CLAMP

GND

I/P

G

CAP

R-CLAMP

I/P

R

VCC1

R-OSD

R/D

SHUTTLE

KEY/

6

7

8

9

10

11

5

4

3

2

1

12

13

14

15

16

VSSA

VCP

RP

VDDA

HFLB

SS

SDA

SCL

VDD

VFLB

B

G

R

VSS

B/B

G/B

R/B

B/D

G/D

ROT

OFF

AD0

AD1

MUTE

SKEYA

SKEYB

SENSE

39

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

31

32

33

34

35

36

37

38

40

10

9

8

7

6

5

4

3

2

1

V-BLK

(AUDIO)

(CS0)

(CS1)

DEGAUSS

W/P

SDA

SCL

VS

HS

IC101

ON XRAY

Isense

REGIN

COMP

HREF

HFLY

VCAP

VOUT

EWOUT

HOUT

GND

BOUT

VCC

SCL

VSYNCIN

SDA

H/HVIN

IC401

32

1

31

30

29

28

27

26

2

3

4

5

6

7

25

24

23

8

9

10

11

12

13

14

15

16

22

21

20

19

18

17

IC105

V-I/P

H-I/P

H-OUT

V-OUT

SCL

SDA

PM1+PM2

SDA

SCL

OSC1

OSC0

GND

VCC

RESET

CONT

BRIT

APPROVED

DATE

CHECKED

DRAWING

MODE

70V

14

13

10

56A574-1

O

N

M

L

K

J

I

H

G

F

E

D

C

B

A

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

B

A

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

IC601

2

6

3

5

1

7

TDA9302H

O

N

M

L

K

J

I

H

G

F

E

D

C

4

3

2

1

1

UC3842AM

56A379-12

4

3

2

1

FROM FBT

ABL

6

T402

10

9

8

6

5

4

13

12 11

1

8

7

6

5

4

3

2

1

14

2

3

5

7

SYNC-

SYNC+

~

D901  D904

IC901

GND

O/P

Vcc

Vref

Ct/Rt

Is

F.B

COMP.

CMPC--S761V-2A

PARTS NO : 41A31-083V

30

30

29

28

28

27

26

26

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

10

8

7

6

5

4

3

2

1

-11

1.1

13.1

12.7

-11

1.1

36

35

32

3.1

3.1

3.1

7.8

76

1

2.9

3.1

2.9

3.1

7.9

-35V

CN901

D432

F901

C901

C902

C963

C964

C905

C918

D917

C920

C924

C921

C923

C922

C900

C915

C950

C408

C604

C462

C444

C946

C943

C945

C460

C948

C955

C447

C403

R403

R969

C418

C419

C415

C413

C425

C431

C422

C610

C709

L901

PR901

Q831

R935

C960

R915

R940

R942

R941

R937

R938

R939

R929

R930

R931

L906

R927

R441

R440

R725

R434

R957

R958

R962

R490

R436

R606

R605

R960

C407

C412

R986

C770

R967

R418

R972

R966

R406

D929

C443

C435

R405

C446

R404

R402

C405

C434

C433

C437

R411

VR902

R933

R609

C406

C613

R749

R741

R748

R747

D741

R740

D431

R745

C464

R911

R613

R462

R428

R427

R426

R425

R423

R422

R456

L401

R447

R457

R458

R721

R722

R723

R989

R726

R730

R409

R715

R713

R712

D704

R461

NR901

Q742

CN902

D703

C741

D902

D903

D901

D904

D914

D911

D913

R936

D910

D919

D930

D922

R410

D923

D925

D450

D926

R476

D460

D602

D408

D405

D418

D419

D706

D420

TP902

TP901

Q912

R192

Q910

Q406

Q403

SW601

Q408

R603

P801

R803

R802

R801

P802

C801

C804

D801

D802

C812

C811

R804

C802

D803

D804

R805

C805

C806

R806

D806

D805

C803

C807

R808

R809

D807

L801

R807

ZD801

C808

C809

E601

SW104

R150

C164

C965

JUMPER

R810

D402

R138

C872

R831

R122

Q821

C841

R963

R844

R100

C947

IC102

C816

Q101

C815

C814

R127

D740

C740

R738

R746

D105

D702

D603

X101

SW102

ZD101

C813

R110

R126

R141

SW103

L101

R701

D601

C820

R151

R985

R914

VR903

C916

C907

C931

C942

C828

C936

C938

C819

C939

C951

C606

C605

R818

R128

R817

R819

R125

R891

R816

R820

R815

C108

R412

R149

ZD110

C414

R823

C712

C713

R824

C107

C432

R921

C937

Q901

Q911

R825

FB901

FB907

FB904

R845

SW901

ZD903

R965

C887

D814

ZD420

Q830

C870

L805

R855

R826

VR701

R892

R139

SW101

C172

R174

Q405

Q404

Q909

Q920

R979

Q705

Q907

FB905

R856

FB902

R893

L903

L806

R952

R951

C941

R152

C105

C171

D815

R991

R840

C421

R604

C830

R857

L807

C829

R183

R173

R154

Q908

D816

C925

R953

R433

R155

R181

C166

C615

R843

C837

R158

L808

R175

C167

HET

FOCUS2

SCREEN

R170

R171

T901

Q130

C603

R601

R602

C962

R168

R727

L405

L404

V-DY

H-DY

C168

R161

ZD112

C104

R163

C106

C601

R858

C109

C110

C169

L102

R159

C602

R608

R117

R901

R959

R166

C836

R443

D817

P19

R153

C463

C146

P401

R859

P402

R147

C144

C835

R137

Q921

C143

C442

C142

C141

T401

R620

P403

H803

R860

G2

FOCUS

HV

J107

R888

R980

J104

R617

C607

R750

R619

D813

L809

C873

FB403

FB402

D812

C710

R988

R607

D407

D810

D811

R886

R872

D808

D809

R429

R870

H803

L810

L811

R887

R873

D842

R894

D840

D406

R896

D841

P804

C862

C417

R733

C823

R868

R867

R866

R833

C843

R472

Q823

R842

Q832

C470

C842

R474

Q428

C416

D470

R473

Q822

R841

R475

R832

Q407

C861

C860

R442

R460

D463

C429

R471

Q426

TP701

R934

C426

J080

C930

Q918

D626

R626

R621

C926

R448

D442

C440

D446

R461

R618

R466

R465

R955

Q431

C445

R492

D436

R776

R772

ZD770

C731

Q708

D915

R943

R932

R928

R770

R771

C402

LED1

L902

Q913

R983

C966

D939

RY901

R981

R982

ZD905

C409

R416

R417

R968

C614

C611

R497

R950

C438

C103

R920

R431

ZD405

R143

FB401

R438

C449

D412

R421

R432

P32

R614

D411

R430

C609

R918

R610

R611

R420

R419

JUM3

JUM1

JWT1

JWT2

JUM2

C961

Q401

H802

ZD105

FB101

R120

R118

R119

R116

R113

R114

R115

R112

R135

R165

R129

R130

R131

R133

R123

R111

P29

R136

JWT3

C173

R132

H804B

R706

L907

FB903

C145

C995

TP403

C732

D995

R996

R995

C133

D134

R917

R134

C113

C112

C114

R172

R109

D434

C929

D918

R108

R157

R616

ZD901

R156

R124

R463

Q430

R464

R453

C150

J096

RA101

C140

C430

R146

D701

H804A

R182

Q710

ZD702

SW602

R775

R199

CN903

Q905

Q903

C908

R907

R908

R909

R910

Q902

R906

R905

R902

LED

Q402

D448

R912

R446

P15

J020

D104

D607

FOCUS1

ZD939

D410

Q931

R414

R408

A

B

R454

P13

D106

C160

C163

R186

J142

J143

C162

J075

C702

R148

C161

R198

C130

C174

R400

C400

R102

L400

C990

R919

R993

D990

Q990

R751

R739

R455

C720

C488

T403

R944

C743

H601

C742

Q741

R615

Q923

D912

R459

R735

D735

R734

IC104

R101

C750

R923

ZD430

R992

R106

D107

C111

Q735

D991

C467

P601

R191

C420

R612

R994

C608

4.98

4.98

4.98

4.98

4.98

0

2.5

0.14

4.82

4.98

4.98

4.98

0.47

0.45

0.37

0.3

0.8

2.46

2.5

2.67

4.36

4.95

4.98

4.56

4.03

1.3

1N4148

2.5A/250V

84A7-45

250VAC

0.1

250VAC

0.22

400VAC

4700

400VAC

4700

NC

100V

3300

31T-52T

BAV20

93A64-

100V

1000

100V

2200

100V

0.1

1KV

220

100V

0.1

400VAC

4700

2KV

0.01

1KV

220

2KV

220

63V

0.22

16V

100UF

0.1

250V

0.1

100V

1500

100V

0.1

0.033

1KV

47PF

1KV

100

22n

100

1/4W

82K

1.6KV

5600PF

1KV

4300

100V

4700

0.1

400V

0.43U

250V

0.1

100V

2.2U

0.47

1KV

100PF

73A174-2-LA

61A52-27-5

BF423

1/4W

22K

2.2UF

1/4W

2K7

1/4W

2%

39K

1/4W

68

1/4W

150

1/4W

150

1/4W

22

1/4W

20K

2W

0.22

1/4W

1K

1/4W

1%

1

100UH

73A253-117-L

3W

33K

1/2W

100K

1%

1/4W

2K7

100K

3K9

1/4W

47K

1/4W

1K5

1/4W

100

1%

18K

680

1/2W

180

1/2W

1.5

1/4W

47K

100

NPO

330

1/4W

10M

95A90-23

1/4W

27K

1/2W

1%

4K7

1/4W

22K

1/4W

3K

100

93A1040-2

16V

47UF

0.1

100

100

100

1/4W

10K

16V

1000U

16V

4.7UF

22UF

10UF

1K8

20K

1K

47K

1/6W

0.1

0.1

100K

1/2W

56K

22K

1/2W

56K

UF2004

1/2W

56K

1N4148

680

10UF

JUMP

N.C

1/4W

1K

47K

3W

0.5

1/2W

22

3W

22

1/4W

100

20K

100

3W

150

1/4W

47K

3W

56

3W

56

1/2W

1K

3K3

2W

100

2W

470

1K

1/2W

10

10K

5K6

1K

95A90-23

95A90-23

61A58-8

57A493-1-T

DEG.

330

1N4148

93A64-11H-52T

93A1060-6-52T

1N4148

11H-52T

93A64-

1W

0.22

PS156R

21P-52T

93A60-

31DF4

93A60-73A

UF4004

-2-52T

93A1040

HER303

-8T

93A3040

UF2003

93A2020-5C

UF2004

93A3040-8T

1N4148

11H-52T

93A64-

1N4148

93A64-11H-52T

1/4W

220K

1N4148

93A64-11H-52T

1N4148

11H-52T

93A64-

DMV32B

93A220-11-F

1N5817

93A1002-1-52T

PS156R

93A60-21P-52T

PS156R

93A60-21P-52T

PS156R

21P-52T

93A60-

1N4148

2SC1213AC

57A446-1-T

1K

2SC945P

57A419-P-T

2SD2025

57A415-3

57A706-9-T

EXIT

2SC945P

57A419-P-T

1/4W

12K

75

75

75

10UF

0.1

1N4148

93A64-11-52T

1N4148

93A64-11-52T

16V

470UF

0.1

30

10UF

1N4148

93A64-11-52T

1N4148

93A64-11-52T

30

0.1

0.1

30

1N4148

93A64-11-52T

1N4148

93A64-11-52T

10UF

2.2UF

10K

1/4W

2M2

1N4148

93A64-11-52T

71A55-19

1W

39

8.2V

57-52T

93A39-

16V

47UF

0.1

(EXIT)

OSD

10K

0.1

JUMPER

100

95A90-23

10K

500V

1000

1K

220

BF422

57A493-500-T

0.1

1/2W

680

1/4W

22K

4K7

22UF

SL24W04

56A1133-12

0.1

57A420-P-T

0.1

0.1

1K

UF2004

450V

1UF

1/2W

100

1/2W

1M

1N5817

-1-52T

93A1002

1N4148

1N4148

93A64-11H-52T

8MHZ

93A22-22

95A90-23

(UP)

RIGHT

0.1

220

1/4W

1K

2K2

(DOWN)

LEFT

73A53-339-10

3.3UH

1N4004

93A52-47P-52T

100V

0.1

10K

1/4W

680

1/4W

1K

100

100V

0.1U

400V

220UF

100V

100UF

16V

470UF

100V

0.47UF

25V

470UF

16V

1000UF

0.1

16V

470UF

200V

47UF

16V

470UF

47UF

100

1K

390

100

2K2

1K

390

100

390

22/NPO

5K6

10K

HZ6B1

73-52T

93A39-

100V

47UF

1/4W

82

250V

2.2UF

1/4W

82

22/NPO

200V

47UF

1W

3.3

16V

1000UF

STP7NC70

-6

57A724

STP8N25

57A600-512

1/4W

82

71A55-19-T

7P1A55-9-T

71A55-9-T

1/4W

2K2

77A411A-3-S

1/4W

47

NPO

100

BAV20

TZX20B

522-52T

93A39-

BF423

500V

1000

109-5T

73A54-

1.0UH

1/2W

100

1/4W

470

22K

1K

1K

(MENU)

ENTER

NPO

100

1K

KSA733GC

57A420-SG-T

KSA733GC

57A420-SG-T

HSB772P

57A728-3

2SA673C

57A727-2-T

1/4W

150

BF423

57A498-1-T

BD140

57A690-2

95A90-23

1/2W

100

95A90-23

1K

95A90-23

109-5T

73A54-

1.0UH

1/4W

47K

1/4W

220

63V

0.1

4K7

1/4W

220K

0.1

10UF

BAV20

2W

91

1/4W

2K2

1KV

1500P

1/4W

5K6

1/4W

220K

100V

0.47UF

1/2W

100

109-5T

73A54-

1.0UH

100V

0.47UF

3K

1/4W

47

5K6

2SC945P

57A419-P-T

BAV20

10UF

1/4W

30K

1K6

1/4W

470K

1K5

0.01

100V

1000

1/4W

2K2

160V

4.7UF

7K5

71A55-19-T

2K

0.1

100

100

80A761-1-L

16V

470UF

1/4W

24K

1/4W

3K9

(N.C)

2.2K

1/4W

10K

73C253-116-L

1.5MH

73A253-70

0.1

1K

6.2V

128-52T

93A39-

25V

100UF

1/4W

6K8

33UF

100V

0.1

1W

1

2.2UF

1UF

16V

100UF

73A54-220-5T

200

330

2W

10

100

1/2W

470K

1/4W

33K

1K

1KV

220

1/4W

47K

PS206

9P-52T

93A52-

3K3

100V

0.01

10UF

2W

100

10K

10UF

2KV

1000

2SC1213AC

57A446-1-T

10UF

JUMP

10UF

10UF

79A167-110-L

32K

1/4W

100K

2K2

1/4W

220

95A90-23

43K

100V

0.047U

JUMPER

360K

BAV20

93A64-31-52T

JUMP

500V

1000

71A55-9

JUMP

BAV20

93A64-31-52T

0.22
100V

1/4W

22K

1W

110

93A60-21P

BAV20

93A64-31-52T

BAV20

93A64-31-52T

2K2

1/4W

1K

BAV20

93A64-31-52T

BAV20

93A64-31-52T

1/2W

10

1/4W

1K

JUMP

JUMP

2K2

1/4W

1K

1N4148

560

1N4148

93A60-21P

560

1N4148

560

1/4W

220K

1/4W

220K

1UF

100V

1UF

100V

1/4W

220K

1/4W

220K

100V

1UF

500V

220P

1000PF

0.15

100

0.01

39

10P

10P

100

100

100

1K

0.1

1/4W

220K

BF422

57A493-500-T

1/4W

22K

BF423

3300

0.1

100K

IRF630M

57A600-21

250V

0.68U

JUMP

BF422

57A493-500-T

1/4W

22K

10K

1K

KSC945GC

57A419-SG-T

500V

0.001

00.1

1/2W

1K

1/4W

4K7

FR107

26T-52T

93C60-

3300

56K

STP8N25

57A600-512

1K2

250V

0.68U

1/2W

100

0.1

2SC1213

57A446-1-T

-11-52T

93A64

18K

150K

50V

100UF

43K

JUMP

93A64-11-52T

JUMP

150K

19-T

71A55-

1K

1K

2.2V

2SC945

NC

NC

1W

100K

1/2W

82K

1/4W

22K

1/4W

1K

80A10-6-BH

73A173-2-LA

KSC945GC

57A419-SG-T

1/4W

10K

1N4148

93A64-11-52T

77A260-5-1

1/2W

100

1/4W

10K

6.2V

1000

1/2W

16K

2K

1/4W

1K2

100

0.15

95A90-23

1K8

250V

0.33UF

0.1

(NC)

2W

2K2

1/4W

6.2K

HZ6B1

93A39-73-52T

100

71A55-9-T

90-23

95A

100V

0.047

1N4148

93A64-11H-52T

1/4W

47K

95A90-23

P31

93A64-19G-52T

1/4W

180K

100V

0.22

1/2W

470K

1/6W

150K

20K

1/4W

4K7

(NC)

100V

0.01

2SC945P

-P-T

57A419

2K2

10K

10K

10K

20K

1K

(NC)

6K2

1K5

2K2

2K

4K7

4K7

4K7

2K2

220

2K2

73A147-71-L/H

JUMP

5K1

95A90-23

95A90-23

10UF

1KV

100

1/2W

470K

JUMP

5K1

47UF

UF2004

-2C

93A2040

5K1

4K7

1/4W

10K

4K7

1K5

JUMP

2SC945P

57A419-P-T

1/4W

1K

4.7K

16V

47UF

JUMPER

4K7

61A124-472-7

10UF

500V

1500

10K

330

BY

STAND

330

KSA733

-SG-T

57A420

2SC945P

-P-T

57A419

0.1

1/4W

2K2

1/2W

15

1/4W

100

91K

2SC2120

57A446-2-T

1/4W

4.7

6K2

10K

81A10-1

2N7000

57A706-2-T

(NC)

1N4148

1W

20K

N.C

1N4148

93A64-11H-52T

11H-52T

93A64-

2SC945

1/6W

1.3K

430K

4.7K

1N4148

93A64-11H-52T

100

100

2K

1000

16V

10UF

10K

220

1K

47

N.C

1W

150

N.C

250V

2.2UF

22K

N.C

-105-Y

73A253

1UF

10K

1/4W

10K

1/4W

93A64-11H-52T

57A419-P-T

1K2

330

1W

47

1KV

1000

2KV

100

79A167-119-L

3K9

1/4W

10UF

470

57A419-P-T

NTCR

100

57A498-1-T

1N4148

93A64-11H-52T

2W

6.8K

1/4W

100K

11H-52T

93A64-

1/4W

68K

(NC)

56A74LS-14

2.2K

(NC)

IC104

0.1

1/2W

82K

N.C

5.1V

N.C

2.2K

30K

(NC)

1N4148

-1-T

57A498

93A64-11H-52T

1N4148

N.C

0.01

2K

(NC)

470UF

N.C

1/4W

2K2

1/2W

10K

Содержание S761U

Страница 1: ...SERVICE MANUAL COLOR MONITOR SPECTRUM 7V SERIES S761U V 41AS761 E11 ...

Страница 2: ...LLER CIRCUIT 12 5 2 DEFLECTION CIRCUIT 13 5 3 TRANSISTOR DIODE CIRCUIT 14 6 TROUBLE SHOOTING CHART 15 6 1 NO RASTER CRT RELATIVE CIRCUIT PROBLEMS 15 6 2 ABNORMAL DISPLAY 17 6 3 NO BLANKING 18 6 4 HOR OSC DEF HV CIRCUIT FAULT 18 6 5 ABNORMAL HORIZONTAL DEFLECTION 19 6 6 ABNORMAL VERTICAL SCANNING 20 6 7 SIDE PIN CUSHION DISTORTION 20 6 8 POOR FOCUS 20 6 9 POWER SUPPLY TROUBLE SHOOTING CHART 21 7 ME...

Страница 3: ... Analog RGB Analog RGB Analog RGB Analog RGB Analog Horiz Sync TTL Level TTL Level TTL Level TTL Level TTL Level TTL Level Negative Negative Negative Positive Positive Positive Vert Sync TTL Level TTL Level TTL Level TTL Level TTL Level TTL Level Negative Positive Negative Positive Positive Positive Horizontal 640 H 720 H 640 H 800 H 1280 H 1024 H Vertical 480 V 400 V 480 V 600 V 1024 V 768 V Fh K...

Страница 4: ...0 C to 40 C Ambient 13 Humidity 10 to 85 Relative Non Condensing 14 Weight 15 5 Kgs Net 17 5Kgs Gross 15 Dimensions Monitor Carton 495 W 455 H 525 D mm Monitor 410 W 402 H 420 D mm 16 External Connection 15 Pin D type Connector AC Power Cord 17 Regulations UL CSA FDA FCC TÜV GS CE MPR II TCO 95 or TCO 99 ...

Страница 5: ...t use a line isolation transformer during this check b Use an AC voltmeter having 5000 ohms per volt or with more sensitivity in the following manner Connect a 1500 ohms 10 Watt resistor paralleled by a 0 15UF AC type capacitor between a known good earth ground water pipe conduit etc and the exposed metallic parts simultaneously Measure the AC voltage across the combination of 1500 ohms resistor a...

Страница 6: ...ply It is important to maintain specified values of all components in the horizontal and high voltage circuits and anywhere else in the monitor that could cause a rise in high voltage or operating supply voltages No changes should be made to the original design of the monitor Components shown in the shaded areas on the schematic should be replaced with exact factory replacement parts The use of un...

Страница 7: ...ews on the connector to ensure firm grounding The connector information is as follow 15 Pin Color Display Signal Cable PIN NO DESCRIPTION PIN NO DESCRIPTION 1 RED 9 NC 2 GREEN 10 GND 3 BLUE 11 SYNC GND 4 GND 12 SDA 5 GND 13 HORIZ SYNC 6 GND R 14 VERT SYNC VCLK 7 GND G 15 SCL 8 GND B 3 Apply power to the display by turning the power switch to the ON position and allow about thirty seconds for displ...

Страница 8: ... MAIN SW104 4 3 ADJUSTMENT METHOD 1 14V B HV voltage adjustment A Chroma 2000 Signal generator or PC equivalent set mode 1 VGA 640X480 pattern 1 0 B Connect a DC Volt meter between TP901 and ground then adjust VR903 to be 14VDC C Connect a DC Volt meter between TP902 and ground then adjust VR902 to be 59 5 VDC 2 Factory preset Timings Adjustment A Press MENU Key to show OSD window press Up or Down...

Страница 9: ...RIGHTNESS V MOIRE REDUCE H CENTER R GAIN H SIZE G GAIN V CENTER B GAIN V SIZE R BIAS ZOOM G BIAS PINCUSHION R BIAS TRAPEZOID 9300 COLOR TEMPERATURE PIN BALANCE 6500 COLOR TEMPERATURE PARALLELOGRAM DEGAUSS ROTATION OSD EXIT CORNER RETURN H 31 4KHZ V 59 8HZ ...

Страница 10: ...to 20 window white pattern then adjust contrast to 148 2 cd m C Recheck item A B to make sure both of them in spec Finally select OSD function to the 9300 K function then press the MENU Key To make the setting data saved in the memory D The adjustment of 6500 K white Balance May follow step A C with the x 313 10 y 329 10 E Full white luminance a Set mode 1 640 480 Fh 31 5KHz full white pattern b I...

Страница 11: ...ue lines are converged by varying the angle between the two tabs of the 4 pole magnets on the PCM assembly See above diagrams D Horizontal red and blue lines are converged by varying the two tabs together keeping the angle between them constant E Produce a white crosshatch pattern on the display F Vertical green and magenta lines are converged by varying the angle between the two tabs of the 6 pol...

Страница 12: ...nitor testing use On Screen Display Controller The IC105 is designed for display the built in characters or fonts onto monitor screen The display operation is by transforming data and control information from micro controller to RAM through a serial data interface Pin2 is used to control the internal oscillator frequency by DC voltage input from external low pass filter R154 C166 R155 and filter R...

Страница 13: ...nt on the oscillator saw tooth voltage The PLL loop filter C435 C437 R411 D403 is connected to Pin7 PLL2 Phase Detector This phase detector is similar to the PLL1 detector and compares the line flyback pulse at pin 12 with the oscillator saw tooth voltage The PLL2 detector thus compensates for the delay in the external H deflection circuit by adjusting the phase of the HDRV output pulses The phase...

Страница 14: ... Voltage Q909 Q910 Use for Standy By or Suspend Mode to Cut off 14V Supply Voltage Q912 Q920 Push Pull Topology to Drive Q911 Q913 Degaussing Switcher Transistor Q921 5V Regulator Transistor Q401 Turn on at Power ON OFF and Change Mode to Protect Hor Block Q402 HOR Driver Transistor Q407 Q408 As a Switcher for Horizontal S Correction CKT Q426 Horizontal s correction control MOSFET Q404 Q405 As Dif...

Страница 15: ...POWER SAVING CIRCUIT ABNORMAL DISPLAY H SYNC V SYNC SIGNAL CHECK SCREEN VOLTAGE ABOUT LESS THAN 300V CHECK FBT CHECK MAIN PCB POWER SUPPLY CHECK FAILSAFE CKT IC401 Q909 Q910 CHECK CRT S HEATER RELATIVE CIRCUIT Q907 Q908 Q703 Q704 Q705 RELATIVE CKT PIN 25 RELATIVE CKT OF CRT ABOUT 24 5 25 5KV 400V TO 600V REFER ITEM 6 2 53V 14V 78V CATHODE ABOUT 55V TO 65V CHECK THE HIGE VOLTAGE OF CRT ABOUT 24 5 1...

Страница 16: ...CHECK SIGNAL CABLE OR INTERFACE CARD CONTRAST SET MAX PIN 2 16 ABOUT 8V CHECK 8V RELATIVE CIRCUIT CHECK THE IC801 PIN 11 RELATIVE CIRCUIT RELATIVE CIRCUIT CHECK IC801 PIN 11 CLAMP PULSE PIN 13 15 18 ABOUT 4Vpp CHECK IC801 PIN 3 PIN 5 PIN 8 PIN 10 3 ABNORMAL DDC PLUG PLAY OK NG CHECK IC101 PIN 5 VOLTAGE ABOUT 5V CHECK SIGNAL CABLE CHECK Q921 GOOD OR FAIL OR H802 PIN 2 3 DATA OUTPUT ...

Страница 17: ...F FBT SCREEN CHECK THE RELATIVE CIRCUIT CHECK THE 12V PIN OF SMPS ON MAIN PCB RELATIVE CIRCUIT OF P802 CONNECTOR ABOUT 400V TO 700V EXCEED 700V CHECK FBT CRT RELATIVE CIRCUIT CHECK VIDEO IC801 VCC ABOUT 8V OF IC801 PIN 13 15 18 ABOUT 3Vpp CHECK THE IC802 OF IC801 PIN 2 PIN 16 Vcc CIRCUIT OR REFER ITEM 6 1 VIDEO PCB ABOUT 78V CHECK THE 78V RELATIVE CIRCUIT CHECK THE VOLTAGE OF FBT SCREEN ABOUT 450V...

Страница 18: ...G NG NG CHECK THE COLLECTOR VOLTAGE CHECK THE COLLECTOR VOLTAGE RELATIVE CIRCUIT RELATIVE CIRCUIT CHECK Q402 T401 CHECK T401 T402 Q402 Q403 ABOUT 3Vpp OF Q403 ABOUT 1200Vpp AT FH 31KHz D408 C418 C419 H DY B CHECK IC401 PIN 26 WAVE FORM CHECK IC401 PIN 4 7 PIN 13 CHECK IC401 PIN 29 ABOUT 12 VDC CHECK IC401 PIN 29 RELATIVE CIRCUIT OF Q402 ABOUT 20Vpp CHECK R858 ON VIDEO PCB CHECK G1 RELATIVE CIRCUIT...

Страница 19: ...DTH FUNCTION OF Q404 Q405 Q406 CHECK THE HV OF CHECK FBT B VOLTAGE CRT ABOUT 25KV ABOUT 60V AT FH 31KHz 2 ABNORMAL HORIZONTAL RASTER CENTER CHECK D418 D419 R457 R458 L404 3 ABNORMAL HORIZONTAL VIDEO CENTER RELATIVE CIRCUIT CHECK IC401 PIN 4 7 4 ABNORMAL HORIZONTAL LINEARITY AND IC101 PIN 28 29 CHECK L401 L403 Q426 RY401 CHECK THE HV OF CRT ABOUT 24 5KV ...

Страница 20: ...K THE VOLTAGE OF IC101 RELATIVE CIRCUIT CHECK IC401 PIN 20 21 22 23 CHECK THE IC601 PIN 2 ABOUT 11 8V PIN 4 ABOUT 12V CHECK D601 C605 2 VERTICAL CENTER NG READJUST V CENTER RELATIVE CKT CHECK IC401 AND IC601 6 7 SIDE PIN CUSHION DISTORTION NG READJUST SIDEPIN CHECK IC401 Q404 Q405 Q406 RELATIVE CKT 6 8 POOR FOCUS READJUST FOCUS CONTROL NG CHECK FOCUS CONTROL UNIT FOCUS LEAD WIRE CRT SOCKET CRT ...

Страница 21: ...OK NG OK OK NG NG NG OK OK OK NG OK NG YES NO CHECK BRIDGE RECTIFIED CIRCUIT CHECK START C K T CHECK IC401 CHECK D919 CHECK Q911 Q911 FAILURE CHECK Q901 CHECK IC901 CHECK AC LINE VOLT 120V OR 220V CHECK F901 SW901 CHECK LINE RECTIFIED SMOOTHED VOLT CHECK Q901 IC901 FAILURE CHECK T901 O P MAKE SURE THAT THE VARIABLE OK OUTPUT IS NOT SHORTED R928 R932 D911 D917 PIN 14 15 16 28 B DRIVER 6 3V 12V CIRC...

Страница 22: ...7 MECHANICAL OF CABINET FRONT DIS ASSEMBLY ...

Страница 23: ...OT GND LABEL 40A 581 26 704 SHIPPING LABEL 40A2041 615 2A ID LABEL 41A 68 508 A CARD 41A 68 615 1C WARRANTY MANUAL 41A 561 615 2B MANUAL 44A3222 1 EPS CUSHION 44A3222 2 EPS CUSHION 44A3222 615 4G CARTON 45A 76 28 RN pe bag 45A 76 34 RN PE BAG 45A 77 500 BARCODE RIBBON 45A 77 501 BARCODE RIBBON 45A 88 7 RN Monitor PE BAG 85A 582 1 SHIELD 89A404C 18N LN POWER CORD 95A 91 205 670 WIRE 95A8013 2 WIRE ...

Страница 24: ...TION 715A 757 1 P C BRD E601 77A 700 1 F ENCODER H601 95A8013 4 16 HARNESS 4P 4P 230MM R191 61A 602 202 52T CFR 2K OHM 5 1 6W PARTS LIST OF CHAS LOCATION CMS761U2N SPECIFICATION AMS761U MAIN PC BOARD ASS Y CRS761U CRT BOARD ASS Y ...

Страница 25: ...LOCATION CMS761U2N SPECIFICATION ...

Страница 26: ...LOCATION CMS761U2N SPECIFICATION LOCATION CMS761U2N SPECIFICATION ...

Страница 27: ... PARTS LIST OF MAIN PC BOARD LOCATION AMS761U SPECIFICATION LOCATION AMS761U SPECIFICATION ...

Страница 28: ......

Страница 29: ...LOCATION AMS761U SPECIFICATION LOCATION AMS761U SPECIFICATION ...

Страница 30: ...LOCATION AMS761U SPECIFICATION ...

Страница 31: ...LOCATION AMS761U SPECIFICATION ...

Страница 32: ...LOCATION AMS761U SPECIFICATION ...

Страница 33: ......

Страница 34: ...LOCATION AMS761U SPECIFICATION ...

Страница 35: ...LOCATION AMS761U SPECIFICATION LOCATION AMS761U SPECIFICATION ...

Страница 36: ...LOCATION AMS761U SPECIFICATION ...

Страница 37: ...LOCATION AMS761U SPECIFICATION ...

Страница 38: ......

Страница 39: ...LOCATION AMS761U SPECIFICATION PARTS LIST OF CRT PC BOARD LOCATION CRS761U SPECIFICATION ARS761U CRT BOARD ...

Страница 40: ...PARTS LIST OF CRT AUTO INS PC BOARD LOCATION ARS761U SPECIFICATION LOCATION ARS761U SPECIFICATION ...

Страница 41: ......

Страница 42: ...LOCATION ARS761U SPECIFICATION ...

Страница 43: ...LOCATION ARS761U SPECIFICATION PARTS LIST OF IC802 ASS Y LOCATION PARTS No SPECIFICATION PARTS LIST OF IC601 ASS Y LOCATION PARTS No SPECIFICATION ...

Страница 44: ...ION PARTS No SPECIFICATION PARTS LIST OF IC101 ASS Y LOCATION PARTS No SPECIFICATION PARTS LIST OF Q403 Q406 D408 ASS Y LOCATION PARTS No SPECIFICATION PARTS LIST OF Q901 ASS Y LOCATION PARTS No SPECIFICATION PARTS LIST OF Q911 ASS Y ...

Страница 45: ...F NR901 ASS Y LOCATION PARTS No SPECIFICATION PARTS LIST OF AC SOCKET ASS Y LOCATION PARTS No SPECIFICATION PARTS LIST OF D919 ASS Y LOCATION PARTS No SPECIFICATION PARTS LIST OF Q431 ASS Y LOCATION PARTS No SPECIFICATION PARTS LIST OF Q428 ASS Y ...

Страница 46: ...LOCATION PARTS No SPECIFICATION PARTS LIST OF CRT ALTERNATION LOCATION PARTS No SPECIFICATION PARTS LIST OF CRT ALTERNATION LOCATION PARTS No SPECIFICATION ...

Страница 47: ...9111 IC802 Q404 Q405 Q406 Q909 Q910 Q907 Q908 LM1279N IC401 IC801 Q403 T402 FBT Q402 T401 IC601 EHT VERT HOR OSC HOR O P G1 G2 FOCUS PRE AMP HOR DRIVER X RAY PROTECTION PINCUSHION VERT O P CONTROL 25KV H V BLANKING CIRCUIT H SIZE CONTROL SAVING POWER HV CPU IC101 CRT B G R B G R CABLE SIGNAL IC802 LM2439 ...

Страница 48: ...06 R929 RY901 90V 264V IC101 CPU FROM Q913 Q911 OUTPUT B VARIABLE MOSFET POWER VARI SMOOTHED SMOOTHED RECTIFIED RECTIFIED OUTPUTS 4 CONTROL H O T FROM C K T H SYNC H SYNC Is O P F B VCC MOSFET POWER Q901 8 3 6 2 7 IC901 PWM O P CONTROL C K T START AC INPUT FILTER LINE SWITCH ON OFF POWER C K T DEGAUSSING VIN SMOOTHED SMOOTHED RECTIFIED RECTIFIED TRANSFORMER TRANSFORMER POWER ...

Страница 49: ... VSYNC0 P05 DAC13 P04 DAC12 P03 DAC11 P02 DAC10 P01 DAC9 P00 DAC8 P31 SCL P30 SDA P20 P21 P22 P23 P24 P25 P26 P27 P16 INTE P10 AD0 P11 AD1 P12 HALFH0 P13 HALFH1 CE P14 P15 OSC1 OSC0 VDD DAC0 DAC1 DAC2 30 15 14 13 12 11 31 32 33 34 35 36 10 9 8 7 6 5 37 38 39 4 3 2 1 40 GND RESET_ IC101 25 24 23 22 21 20 19 18 17 16 26 27 28 29 ...

Страница 50: ......

Страница 51: ...ONTROL DISPLAY 15 14 13 12 11 WB WG WR VCLKX BLINK 7 CH 8 HORD 8 VERTD VSP HSP OSDENB SHADOW BSEN CONTROL FRAME WINDOWS LPN 9 DADDR 5 RCADDR VCLKS CWS BORDER LUMA GENERATOR BORDGER LUMINANCE CHARACTER ROM CRADDR DATA CHS CWS BLINK REGISTERS CONTROL VCLKX HDREN ARWDB HORD HSP 8 7 VERTD CHS CH VSP NROW VDREN HDREN 8 DATA ENCODER COLOUR HORIZONTAL VERTICAL ADMINISTRATOR ADDRESS BUS INTERFACE BLANK FB...

Страница 52: ...RMAL GENERATOR FLYBACK HV GENERATOR 4 8 VSS VCC SCL SDA 6 5 WP 7 R W CONTROL SENSE AMP YDEC XDEC PAGE LATCHES 128X8 EEPROM ARRAY MEMORY LOGIC LOGIC CONTROL CONTROL I O IC102 24C04 LM2438 4 3 2 5 6 7 8 9 IC802 Vout 1 Vout 2 Vout 3 VCC GND Vin 3 Vin 2 VBB Vin 1 1 ...

Страница 53: ...ST 1 35V SANDCASTLE SYNC BLUE DRIVE BLUE OUT GREEN DRIVE GREEN OUT VCC2 RED DRIVE RED OUT BLUE OSD IN GREEN OSD IN 11 12 13 14 15 16 17 18 19 20 A3 A3 A3 VID CONTRAST B CLAMP CAP BLUE VIDEO IN 10 9 8 G CLAMP CAP GROUND 7 6 GREEN VIDEO IN 5 gml gml gml R CLAMP CAP 4 1 2 RED OSD IN VCC RED VIDEO IN 3 A1 A1 A1 A2 A2 A2 ATTENUATOR ATTENUATOR ATTENUATOR 12dB DRIVE 12dB DRIVE 12dB DRIVE ATTENUATOR ATTEN...

Страница 54: ...132 J033 J086 C121 FB050 FB905 FB907 FB903 FB402 FB403 FB904 FB405 FB101 FB906 SW901 C169 C104 C740 C400 C929 C419 C901 C416 C442 C440 C946 C604 9 1 H802 CONT SEN CLP 12V GND SDA SCL HS VS Q406 E C B C488 C720 B E C Q403 D902 D901 D904 D922 D903 D409 S G D Q431 S G D Q426 S G D Q428 J107 C964 C900 D707 C904 C133 C462 C912 C958 C990 C911 C712 C434 C101 C966 C925 C947 C437 C443 R121 J016 C940 C109 C...

Страница 55: ... C866 C862 C872 C873 C841 C842 C843 C870 C861 C860 C834 C813 C836 C819 C865 C806 C814 C837 L801 L808 E C B Q832 E C B Q823 E C B Q831 E C B Q830 E C B Q822 E C B Q821 D810 FB804 R858 R807 R859 ZD801 ZD802 12 1 P801 SENSE SDA SCL VS HS GND B GND G GND R 5V 11 1 P804 FB ROGOBO GNDRD GDBDRBGBBB GND GND2 GND1 G2 C835 R831 R804 R818 R815 R819 R867 R891 R888 R816 R820 R817 R886 R887 R868 R866 R894 R895 ...

Страница 56: ...02 SW602 R775 R199 CN903 Q905 Q903 C908 R907 R908 R909 R910 Q902 R906 R905 R902 LED Q402 D448 R912 R446 P15 J020 D104 D607 FOCUS1 ZD939 D410 Q931 R414 R408 A B R454 P13 D106 C160 C163 R186 J142 J143 C162 J075 C702 R148 C161 R198 C130 C174 R400 C400 R102 L400 C990 R919 R993 D990 Q990 R751 R739 R455 C720 C488 T403 R944 C743 H601 C742 Q741 R615 Q923 D912 R459 R735 D735 R734 IC104 R101 C750 R923 ZD430...

Страница 57: ...0 R131 R133 R123 R111 P29 R136 JWT3 C173 R132 H804B L907 FB903 C145 C133 D134 R917 R134 C113 C112 C114 R172 R109 C929 D918 R108 R157 ZD901 R156 R124 C150 RA101 C140 R146 H804A R182 Q710 SW602 R775 R199 Q903 R907 R908 R909 LED D448 R912 P15 J020 D104 ZD939 Q931 A B P13 D106 C160 C163 R186 J142 J143 C162 J075 R148 C161 R198 C130 C174 R102 H601 Q923 D912 IC104 R101 C750 R923 ZD430 R992 R106 D107 C111...

Страница 58: ... R886 R872 D808 D809 R870 H803 L810 L811 R887 R873 D842 R894 D840 R896 D841 P804 C862 C823 R868 R867 R866 R833 C843 Q823 R842 Q832 C842 Q822 R841 R832 C861 C860 R776 R616 D607 FOCUS1 R751 R739 C743 C742 Q741 R615 R612 C608 1N4148 63V 0 22 1 6KV 5600PF BF423 1 2W 180 1 2W 1 5 100K 1 2W 56K 22K 1 2W 56K UF2004 1 2W 56K 1N4148 680 N C 1 4W 1K 95A90 23 57A493 1 T 330 1N4148 11H 52T 93A64 1N5817 93A100...

Страница 59: ...5 4 3 2 1 12 13 14 15 16 VSSA VCP RP VDDA HFLB SS SDA SCL VDD VFLB B G R VSS B B ROT OFF AD0 AD1 MUTE SKEYA SKEYB SENSE 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 31 32 33 34 10 9 8 7 V BLK AUDIO CS0 CS1 DEGAUSS W P ON XRAY Isense REGIN COMP HREF HFLY VCAP VOUT EWOUT HOUT GND BOUT VCC SCL VSYNCIN SDA H HVIN IC401 32 1 31 30 29 28 27 26 2 3 4 5 6 7 25 24 23 8 9 10 11 12 13 14 15 16...

Страница 60: ...3 1 6KV 5600PF 1KV 4300 100V 4700 0 1 400V 0 43U 250V 0 1 100V 2 2U 1KV 100PF 1 2W 100K 1 1 4W 2K7 100K 3K9 1 18K 680 1 2W 180 1 2W 1 5 100K 1 2W 56K 22K 1 2W 56K UF2004 1 2W 56K 1N4148 680 N C 1 4W 1K 3W 0 5 1 2W 22 3W 22 1 4W 100 20K 100 3W 150 1 4W 47K 3W 56 3W 56 1 2W 1K 3K3 2W 100 1K 1 2W 10 10K 5K6 1K 95A90 23 95A90 23 57A493 1 T 330 1N4148 11H 52T 93A64 1 4W 220K 1N4148 93A64 11H 52T 1N4148...

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