AOC F22 Schematic

21.5" LCD Color Monitor AOC F22

6.2 Electric Block Diagram

6.2.1 Main Board

FLASH MEMORY

SST25LF020A

(U402)

H sync
V sync

RGB

D-Sub

Connector

(CN101)

LCD Interface

(CN301)

Scalar TSUMU58EHL-LF

(Include :MCU,ADC,OSD etc)

(U401)

RGB

EEPROM

M24C04

(U403)

DCLK+

DCLK-

DVID

Connector

(CN102)

EEPROM

M24C02

(U103)

EEPROM

M24C02

(U104)

15

21.5" LCD Color Monitor AOC F22

(

5

6.2.2 Inverter / Power Board

715G2824 1 6

AC input

EMI filter

Start Circuit: R905ΕR906Ε
R907ΕR908ΕR909ΕR910

Lamp

OSC and
Output
Circuit

Feedback
Circuit

715G2824 2 11

AC input

EMI filter

Bridge
Rectifier
and Filter

PWM
Control IC

DC Convert
Circuit

Over Voltage
Protect

Bridge
Rectifier
and Filter

Start Resistor

(R904,R905)

PWM Control

LD7576

IC901)

Transformer

PWM
Control IC

Transformer

Rectifier
diode

MOSFET

PWM

(T901)

Power Switch

(Q900)

Over
Voltage
Protect

12V

ON/OFF

ON/OFF Control

DIM

Rectifier
diodes

5V

Feedback

Circuit

CN902

16V

V

Photo coupler

(IC903)

Output

Lamp

Circuit

Feedback

Circuit

Transformer

(PT801)

16

MOSFET

(Q805, Q806)

PWM Control

TA9687GN

(IC801)

Regulator

(IC904)

16V

ON/OFF
5V
DIM
PID

OC F22

ǃ

>

B

⿄⠍

ESD_VCC1 and ESD_VCC2

ESD_VCC

ESD_VCC1

FB109

ESD_VCC2

AOC 835Vw

OEM MODEL Size

T P V ( Top Victory Electronics Co . , Ltd. )

as EMI request.Alter the

300 OHM

1 2

<

Rev

⿄⠍

of
26Thursday, J une 12, 2008

T8RMM6D8X8A1HN B

Sheet

PCB NAME

TPV MOD EL

G2883-A-3-X-1-080612

2.0.INPUT

㝍
㌾
⪰

Date

䱨
㍀

Key Component

location of FB108 and add FB109

for EMI.

17

C117

C116

123

45

NC

A0A1A2

U101

NC

R125

4K7 1/16W 5%

R124

4K7 1/16W 5%

2

HDCP_CTRL

R121

NC

Q101

NC

R122

NC

C115

0.1uF/16V

3

19

2/4shield

1/3shield

0/5shield

clk shield

VSSSDA

SCLWPVCC

678

DDC_WP

DDC1_SCL

DDC1_SDA

2

RX0N 2

RX0P 2

RX1P 2

RX0N

RX1P

RX0P

R126 10R 1/16W 5%

R127 10R 1/16W 5%

R128 10R 1/16W 5%

101112

17

18

DAT0-

DAT1+

DAT0+

DVI_5V

C122

1000pF

NC / M24C02-WMN6TP

12

FB105

300 OHM

D108

1

2

FB104

300 OHM

C121

1000pF

1 2

CMVCC

VCC3.3

RX1N 2

RX2N 2

RX2P 2

RX1N

RX2N

RX2P

R131 10R 1/16W 5%

R129 10R 1/16W 5%

R130 10R 1/16W 5%

1

2

9

13

DAT2-

DAT1-

DAT2+

DAT3+

Exchange pin.1 and pin.3 of U105

and U106 easy to EMI layout.

4

5

20

212223

DAT4-

DAT3-

DAT4+

DAT5+

RXCN 2

RXCP 2

RXCN

RXCP

R132 10R 1/16W 5%

R134 10R 1/16W 5%

24

clk-

clk+

GND

DAT5-

GND

C113

C114

R117

5pF/50V

VGA_R-

U10 1

׭㎐ǂ

Prevent NC contact Discharge

D104

DSUB_R- 2

1

DSUB_5V

2

0.047uF

CMVCC

100R 1/16W 5%

Change VCC of U103 ~ U107

from MVCC to ESD_VCC to

=> Connect NC Pin of CN101

to GND

DSUB_SOG 2

DSUB_B+ 2

C102

0.047uF

R105

100R 1/16W 5%

FB102

BEAD

1 2

VGA_B+

MVCC_1

DSUB_B- 2

C106

0.047uF

R109

100R 1/16W 5%

C105

5pF/50V

R108

75R 1/ 16W 5%

VGA_B-

D109

1

2

DSUB_V 2

DSUB_H 2

R104 1K 1/16W 5%

R103 1K 1/16W 5%

C104

C103

R107

R106

R102

0R05 1/ 10W 5%

H_Sync

V_Sync

DSUB_G+ 2

C108

0.047uF

C107

1000pF

R110

470R 1/16W 5%

R111

100R 1/16W 5%

FB103

BEAD

1 2

VGA_G+

BAT54C

3

ESD_VCC

H_Sync

V_Sync

5

6

I/O4

VDD

U104

I/O1

GND

I/O2 I/O3

123 4

DSUB_SDA

DSUB_SCL

22pF

DSUB_5V

22pF

FB107

2K2 1/16W 5%

2K2 1/16W 5%

CN101

DSUB_G- 2

C110

0.047uF

R114

100R 1/16W 5%

C109

5pF/50V

R112

75R 1/ 16W 5%

VGA_G-

C112

NC

U10 3

׭㎐ǂ

AZC099-04S

C124

0.1uF 16 V

300 OHM

1 2

ZD104

VGA_PLUG

VGA_B+

VGA_B-

DSUB_5V

10

13

14

15

DSUB_SCL

R101

100R 1/16W 5%

DDC1_SCL

DSUB_R+ 2

C111

0.047uF

R115

100R 1/16W 5%

R116

75R 1/ 16W 5%

FB101

BEAD

1 2

VGA_R+

C101

NC

ESD_VCC

VGA_B+

5

6

I/O4

VDD

AZC099-04S

U103

I/O1

GND

I/O2 I/O3

123 4

VGA_G+

VGA_R+

ZD105

RLZ5.6B

RLZ5.6B

VGA_G+

VGA_R-

VGA_R+

VGA_G-

162738495

DB15

17 16

11

12

DSUB_SDA

R113

100R 1/16W 5%

DDC1_SDA

prevent without VCC issue.

DVI_5V

BAT54C

3

R123

R140

NC

DVI_5V

DDC2_SDA 2

DDC2_SCL 2

DDC2_SCL

DDC2_SDA

R118

100R 1/ 16W 5%

R119

100R 1/ 16W 5%

R120

10K 1/16W 5%

DVI_HPD

678

141516

+5V

HPD

VSYNC

DDC SCL

DDC SDA

SYNC GND

NC

123

45

A0A1A2

VSSSDA

SCLWPVCC

U102

R136

NC

BAT54C

R138

4K7 1/16W 5%

3

R137

4K7 1/16W 5%

R133

10K 1/16W 5%

R135

DVI_HPD

ESD_VCC

300 OHM

FB108

1 2

ESD_VCC1

5

6

I/O4

VDD

U106

I/O1

GND

I/O2 I/O3

123 4

ESD_VCC1

5

6

I/O4

VDD

U105

I/O1

GND

I/O2 I/O3

123 4

ESD_VCC2

5

6

I/O4

VDD

U107

I/O1

GND

I/O2 I/O3

123 4

25
26

10K 1/16W 5%

C119

AZC099-04S

C118

AZC099-04S

C120

AZC099-04S

678

DDC2_SCL

DDC2_SDA

2

DET_CABLE

R139

6K8 1/16W 5%

VGA_PLUG

NC

U106

׭㎐ǂ

NC

U105

׭㎐ǂ

NC

U107

׭㎐ǂ

NC / M24C02-WMN6TP

DDC_WP

2

ESD_VCC divided into

DGND

GND POWER

DDC1_SCL2

DDC1_SDA2

21.5" LCD Color Monitor

7. Schematic

7.1 Main Board

CN102

JACK