ViewSonic G90FB-2 Service Manual download pdf (Page 49)

10．Schematic Diagrams

10-1. CPU

1.6K

R133

CS1

JUMPER

R110

6.2V

ZD101

The test condition of every IC PIN voltage :H-Freq:68KHZ;V-Freq:85HZ;Pattern:white;

1.321V

100

R122

B+ DRV

1.031V

<SW103>

1000P

C125

SDA

KEY1

0.004V

R408 100K

DDC-SDA

SELF

HZ4C2-E

ZD107

220 1/4W

R121

15K

R106

CS2

5K6

R182

2.2K

R137

C105

1uF

1.321V

100P

C128

100

R118

+12V

0.860V

V-SYNC-IN

+12V

0.549V

47UF

C100

DDC-SCL

0.130V

1000P

C913

100

R117

+190V

R157

6.2V

ZD105

Q414

TBC337-40

22UF

C145

62KHz~71KHz

180K 1/4W

R161

-24.85V

5K6

R127

R412

27K

BDRV

0.853V

VDF

KEY1

0.780V

3.9K

R116

12V

KEY1

KEY2

LED

GND

H803

100

R132

VSOUT

0.314V

100

R103

27K

R183

48MHz

X101

0.47U

C115

D107

IN5817

P-Sense

+5V

2.089V

0.020V

R124

Green

LED2

100P

C121

R113

KEY2

0.004V

10K

R148

VSOUT

4.996V

470

R129

H-SYNC-IN

7.5K

R147

1.1K 1/4W

R136

1000

C106

470

R125

2.499V

3.035V

R411

3K9

100

C107

DEGAUSS

LED

0.004V

100

R101

+80V

0.010V

R150

V-SYNC-IN

CS3

100

R104

CS4

0.140V

SAA4849PS

-120V

2.077V

10K

R130

6.2V

ZD102

ABL

4.996V

D402 MLL4148

+12V

R163

R155

1UF 50V

C118

100P

C122

<SW102>

680

R151

0.218V

+12V

0.011V

2.492V

56C1133-508

Jumper

C126

+6.1V

4.996V

100

R105

CS1

100

R102

100

R139

39P

C127

220K 1/4W

R142

3.3K

R144

470

R154

2K4

R128

0.1UF

C101

4.999V

1.726V

0.003V

R112

SDA

GND

DDC-SDA

DDC-SCL

SELF

H-SYNC-IN

V-SYNC-IN

DDC5V

SCL

H802

0.047UF 100V

C117

2200

C109

0.1UF

C406

+5V

4.963V

Rotation

Q413

PH2369

CS2

1000P

C914

6.2V

ZD104

100

R115

2K2

R109

47 1/4W

J126

71KHz~83KHz

<SW102>

R419

22K 1/2W

0.324V

R119

TZX5V1B

ZD106

10K

J015

HCadj

1.286V

4.7K

R123

+12V

HUNLOCK

0.005V

45KHz~51KHz

2K2

R138

H-LIN

5.015V

40.5KHz~45KHz

CS3

4.7K

R149

0.01uF

C123

56C1125-575-X

IC101

8 49

21 36

SwiChoice

ISCL

ISDA

Mute G1

DSCL

ROTA

Pro

H-LIN

Unlock

CLAMP VsOUT

CS1

CS2

CS3

OFF

VSSE

VDDD

V5V

VSSD

BDRV

HBGND

HDRV

HFB Iref

Vref

AGND

Bsens

Bin

BOP

Vssa

VDDA

MODE

XTAL1

XTAL2

REM

EEP W/R

CS4

DSDA

SELF

XRAY

RST

Vfocus

Deguss

ABLadj

KEY2

KEY1

EWdrv

VOUT2

VUOT1

EHT

HCadj

Uvolt

Sincolor

93C22-48-H

J071

Jump

<SW101>

100

R166

<83KHz

2N2

C116

VER+

0.1UF

C103

0.017V

0.1UF

C102

6.2V

ZD103

3.9K

R134

LED

2.324V

2K2

R108

+6.1V

3.246V

4.858V

R114

H-FLY

3.212V

R162

2K4

R181

2200

C124

CS4

1K 1/4W

R120.

D401

MLL4148

R167

10UF 16V

C119

4.984V

Q401

PH2369

Q902

PH2369

LED

2.474V

100UF 16V

C104

10K

R126

HUNLOCK

5.008V

4.859V

C114

HDRV

2.658V

51KHz~62KHz

R111

ABL-CON

100

R164

1000

C108

DDC-SCL

Q412

BF423

8K2

R146

4K7

R107

VER-

4.980V

C405

100U

16V

0.019V

+80V

+12V

GND

+5V

CLBL

ABL

H-FLY

Bri

+6V

H801

100

R159

0.191V

100

C110

B+ DRV

KEY2

0.728V

0.1UF

C120

Q415

TBC327-16

R416

75K 1/4W

100

R143

8.2K

R165

100

R140

0.232V

<33KHz

<SW104>

SCL

3.281V

H-FLY

3.362V

OFF

KEY1

2.912V

0.004V

SELF

DDC-SDA

(SW103)

Orange

LED2

真值表

M24C08-BN6

IC102

VCC

ISDA

ISCL

100P

C129 2.2K

R131

2.7K

R153

100

R145

470

R135

R407

H-SYNC-IN

2K2

R141

0.004V

+12V

4.511V

33KHz~40.5KHz

KEY2

0.673V

0.591V

100

R172

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ViewSonic G90FB-2 Service Manual Page 49

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