AOC F22 Schematic

21.5" LCD Color Monitor

AOC F22

6.2 Electric Block Diagram

6.2.1 Main Board

LCD Interface

(CN301)

FLASH MEMORY		Scalar TSUMU58EHL-LF
SST25LF020A		(Include :MCU,ADC,OSD etc)
(U402)		(U401)

H sync			RGB
V sync			DCLK+
RGB			DCLK-
		EEPROM
		M24C04
		(U403)
D-Sub				DVID
Connector				Connector
(CN101)				(CN102)

		EEPROM
EEPROM
M24C02		M24C02
(U103)		(U104)

15

21.5" LCD Color Monitor

AOC F22

6.2.2 Inverter / Power Board

715G2824

1

6

Bridge

Rectifier

AC input

Transformer

EMI filter

Rectifier

diode

and Filter

Start Circuit: R905 R906

CN902

R907

R908

R909

R910

12V

5V

PWM

Over

Control IC

Voltage

Protect

ON/OFF

OSC and

DC Convert

MOSFET

Output

Circuit

Lamp

Circuit

PWM

Feedback

Over Voltage

PWM

ON/OFF Control

Circuit

Protect

Control IC

DIM

715G2824

2 11

AC input

Bridge

Transformer

16V

Rectifier

EMI filter

Rectifier

(T901)

diodes

and Filter

5V

Start Resistor

(R904,R905)

Feedback

Circuit

PWM Control

Power Switch

LD7576

(Q900)

(IC901)

Regulator

Photo coupler

(IC904)

(IC903)

	Output	Transformer	MOSFET	16V
	Circuit	(PT801)	(Q805, Q806)

Lamp

			PWM Control	ON/OFF
	Feedback
			TA9687GN
	Circuit			5V
			(IC801)
				DIM
				PID

16

21.5" LCD Color Monitor

AOC F22

7. Schematic

7.1 Main Board

MVCC_1

VGA_B+

1

FB1022

R105

C102

DSUB_B+

2

BEAD

100R 1/16W 5%

0.047uF

D109

H_Sy nc

R102

R103

1K 1/16W 5%

2

1

R108

DSUB_H

2

V_Sy nc

0R05 1/10W 5%

R104

1K 1/16W 5%

75R 1/16W 5%

C105

DSUB_V

2

5pF/50V

R106

R107

VGA_B-

R109

C106

DSUB_B-

2

C103

C104

100R 1/16W 5%

0.047uF

2K2 1/16W 5%

2K2 1/16W 5%

22pF

22pF

BAT54C

DSUB_5V

U104

ESD_VCC

3

R110

C107

DSUB_SOG

2

DSUB_SCL

1

I/O1 I/O4

6

H_Sy nc

470R 1/16W 5%

1000pF

2

5

GNDVDD

VGA_G+

CN101

DSUB_SDA

3

4

V_Sy nc

1

FB1032

R111

C108

DSUB_G+

2

I/O2 I/O3

FB107

BEAD

100R 1/16W 5%

0.047uF

16

AZC099-04S

10

1

2

C112

R112

VGA_PLUG

2

DDC1_SCL

DDC1_SCL

R101

DSUB_SCL 15

5

300 OHM

NC

75R 1/16W 5%

C109

100R 1/16W 5%

9

DSUB_5V

5pF/50V

U103

14

4

VGA_B-

ZD104

C124

VGA_G-

R114

C110

8

DSUB_G-

2

13

3

VGA_B+

0.1uF 16V

100R 1/16W 5%

0.047uF

7

VGA_G-

ZD105

2

DDC1_SDA

DDC1_SDA

R113

DSUB_SDA 12

2

VGA_G+

RLZ5.6B

U103

100R 1/16W 5%

6

VGA_R-

RLZ5.6B

ESD_VCC

11

1

VGA_R+

VGA_G+

1

I/O1 I/O4

6

2

5

GNDVDD

VGA_R+

DB15

VGA_R+

3

4

VGA_B+

1

FB1012

R115

C111

DSUB_R+

2

I/O2 I/O3

17

BEAD

100R 1/16W 5%

0.047uF

AZC099-04S

C101

R116

Prevent NC contact Discharge

NC

75R 1/16W 5%

C113

U101

VGA_R-

5pF/50V

C114

=> Connect NC Pin of CN101

Change VCC of U103 ~ U107

R117

DSUB_5V

2

100R 1/16W 5%

CMVCC

to GND

0.047uF

DSUB_R-

from MVCC to ESD_VCC to

DVI_5V

2

1

D104

CN102

8

DVI_5V

prevent without VCC issue.

VSYNC

15

DVI_HPD

SYNC GND

6

R118

DDC2_SCL

DDC2_SCL

2

DDC SCL

7

R119100R 1/16W 5%

DDC2_SDA

DDC SDA

DDC2_SDA

2

14

R120

100R 1/16W 5%

R140

+5V

16

10K 1/16W 5%

3

BAT54C

HPD

NC

R123

C116

1/3shield

11

R121

NC

NC

3

C115

R122

HDCP_CTRL

R124R125

2/4shield

2

U101

19

0.1uF/16V

NC

4K74K71/16W1/16W5%5%

0/5shield

22

Q101

NC

8

1

clk shield

VCC

A0

NC

7

2

WP

A1

DAT0+

18

R126

10R 1/16W 5%

RX0P

RX0P

2

DDC1_SCL

6

3

SCL

A2

17

R127

10R 1/16W 5%

RX0N

DDC1_SDA

5

4

DAT0-

RX0N

2

SDA VSS

10

R128

10R 1/16W 5%

RX1P

DDC_WP

DAT1+

RX1P

2

2

9

R129

10R 1/16W 5%

RX1N

DAT1-

RX1N

2

NC / M24C02-WMN6TP

2

R130

10R 1/16W 5%

RX2P

DAT2+

RX2P

2

1

R131

10R 1/16W 5%

RX2N

DAT2-

RX2N

2

CMVCC

DVI_5V

13

DAT3+

12

Exchange pin.1 and pin.3 of U105

DAT3-

5

1

FB1042

2

FB1051

DAT4+

4

300 OHM

D108

300 OHM

DAT4-

21

and U106 easy to EMI layout.

2

1

DAT5+

20

C121

C122

DAT5-

23

R132

10R 1/16W 5%

RXCP

RXCP

2

1000pF

1000pF

clk+

24

R134

10R 1/16W 5%

RXCN

VCC3.3

GND GND

RXCN

2

clk-

JACK

ESD_VCC2

ESD_VCC1

ESD_VCC1

ESD_VCC

R133

BAT54C

26 25

U107

U105

U106

3

FB108

10K 1/16W 5%

1

6

1

6

1

6

C117

I/O1 I/O4

I/O1 I/O4

I/O1 I/O4

2

5

2

5

2

5

1

2

R136

GNDVDD

GNDVDD

GNDVDD

3

4

3

4

3

4

300 OHM

R137R138

NC

I/O2 I/O3

I/O2 I/O3

I/O2 I/O3

DVI_HPD

R135

NC

U102

4K74K71/16W1/16W5%5%

AZC099-04S

C120

AZC099-04S

C118

AZC099-04S

C119

10K 1/16W 5%

8

VCC

A0

1

7

2

2

DDC2_SCL

WP

A1

NC

NC

NC

VGA_PLUG

R139

DET_CABLE

6

3

6K8 1/16W 5%

DDC2_SDA

5

SCL

A2

4

U107

U105

U106

SDA VSS

2

DDC_WP

GND POWER DGND

ESD_VCC divided into

NC / M24C02-WMN6TP

ESD_VCC2

FB109

ESD_VCC1

ESD_VCC

ESD_VCC1 and ESD_VCC2

1

2

as EMI request.Alter the

T P V

( Top Victory

Electronics

Co . , Ltd. )

OEM MODEL

AOC 835Vw

Size

B

300 OHM

location of FB108 and add FB109

G2883-A-3-X-1-080612

TPV MODEL

T8RMM6D8X8A1HN

Rev

B

for EMI.

Key Component

2.0.INPUT

PCB NAME

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>

Date

Thursday , June 12, 2008

Sheet

2 of

6

17