AOC 193FW Schematic

AOC 193FW (+)

SERVICE MANUAL

19” LCD Monitor

193FW (+)

THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY. EVERY REASONABLE EFFORT HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL; WE CANNOT GUARANTEE THE ACCURACY OF THIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS RELIABILITY FOR CHANGES, ERRORS OR OMISSIONS.

1

AOC 193FW (+)

Table of Content

Revision List………………………………………………………………………………………………………….		3
1.	Monitor Specifications…………………………………………………………………………………………..	4
2.	LCD Monitor Description………………………………………………………………………………………..	5
3.	Operating Instructions…………………………………………………………………………………………..	6
	3.1 General Instructions…………………………………………………………………………………………...	6
	3.2 Control Buttons………………………………………………………………………………………………...	6
	3.3 Adjusting the Picture…………………………………………………………………………………………..	7
4.	Input/Output Specification……………………………………………………………………………………...	9
	4.1 Input Signal Connector………………………………………………………………………………………..	9
	4.2 Factory Preset Display Modes………………………………………………………………………………..	9
	4.3 Power Supply Requirements…………………………………………………………………………………	10
	4.4 Panel Specification………………………………………………………………………………………….…	10
	4.4.1Display Characteristics…………………………………………………………………………………	10
	4.4.2Optical Characteristics……………………………………………………………………………………	11
	4.4.3 Parameter Guide Line For CCFL Inverter………………………………………………………………	11
5.	Block Diagram………………………………………………………………………………………………….…	12
	5.1 Monitor Exploded View………………………………………………………………………………………..	12
	5.2 Software Flow Chart…………………………………………………………………………………………...	13
	5.3 Electrical Block Diagram………………………………………………………………………………………	15
	5.3.1 Main Board………………………………………………………………………………………………...	15
	5.3.2 Inverter/Power Board………………………………………………………….………………………….	16
6.	Schematic……………………………………………………………………………………………………….…	17
	6.1 Main Board……………………………………………………………………………………………………..	17
	6.2 Power Board……………………………………………………………………….…………………………..	24
7. PCB Layout……………………………………………………………………………………………………….		27
	7.1 Main Board……………………………………………………………………………………………………..	27
	7.2 Adapter Board………………………………………………………………………….………………………	28
	7.3 Inverter Board …………………………………………………………………………………………………	28
8.	Maintainability…………………………………………………………………………………………………….	29
	8.1 Equipments and Tools Requirement…………………………………………………………………………	29
	8.2 Trouble Shooting…………………………………………………………………………………………….…	30
	8.2.1 Main Board………………………………………………………………………………………………...	30
	8.2.2 Adaptor /Inverter/Board…………………………………………………………………………………	33
	8.2.3 Keypad Board……………………………………………………………………………………………..	34
9.	White-Balance, Luminance adjustment ……………………………………………………………………	35
10. EDID Content…………………………………………………………………………………………………….		36
11. BOM List……………………………………………………………………………………………………….....		37
12. Different Parts list………………………………………………………………………………………….		181

2

			AOC 193FW (+)
		Revision List
Version	Date	Revision History	TPV Model Name
A00	Jan-16-06	Initial Release	T982KM2HDBAON
A01	Sep-13-06	Add the sold area model	T95MM2HLWCCKNP
A02	Sep-18-06	Add the sold area model	T95MM2HMWCUPNP
			T982KM2NKBA1N
A03	Oct-05-06	Add the sold area model	T982KM2NKBA1NP
			T95MM2HKWCA1FP
A04	Oct-25-06	Add the sold area model	T95MM2HCWCPUNP
A05	Nov-22-06	Add TPV Model in item 12	T982KM4HBAE1NP
A06	Nov-30-06	Add BOM in item 11	T982KM2HMBUIN
A07	Jan-26-07	Add BOM in item 11	T96MM2NQWCA1N
A08	Jun-05-07	Add BOM in item 11	T95MM2HCWCCGNP

3

			AOC 193FW (+)
1. Monitor Specifications
Items		Specifications
	Driving system		TFT Color LCD
	Size		48.0cm(19.0")
LCD Panel	Pixel pitch		0.285mm(H) x 0.285mm(V)
	Viewable angle		150˚ (H) 130˚ (V)
	Response time (type)		8 ms for AU panel
	Separate Sync.		H/V TTL
	Video		15Pin R, G, B Analog signal
Input			24Pin DVI digital signal
	H-Frequency		30kHz – 80kHz
	V-Frequency		55-75Hz
Display Color			16.7M colors
Dot Clock			135MHz
Contrast Ratio		500:1
White Luminance			300cd/m2
Max. Resolution		1440 × 900 @60Hz
Plug & Play		VESA DDC2BTM
Power Consumption		ON Mode<36W
		OFF Mode<1W
Power Source		100~240VAC,47~63Hz
Maximum Screen Size		Horizontal : 410mm
		Vertical: 256mm
Environmental	Operating Temp: 5°C to 50°C
	Storage Temp: -20°C to 60°C
Considerations
	Operating Humidity: 10% to 85%

4

AOC 193FW (+)

2. LCD Monitor Description

The LCD MONITOR will contain a main board, an adapter, an inverter board and a keypad board which house the flat panel control logic, brightness control logic and DDC.

The Inverter board will drive the backlight of panel and the DC-DC conversion. The Adapter will provide the 12V DC-power to inverter/power board.

Monitor Block Diagram

	CCFL Drive.	Flat Panel and
		CCFL backlight
Inverter board		Main Board	RS232 Connector
			For	white		balance
DC-IN			adjustment		in	factory
		Keyboard	mode
12V
Adaptor board		Video	signal

HOST Computer

AC-IN 100V-240V

5

AOC 193FW (+)

3. Operating Instructions

3.1 General Instructions

Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor.

By changing these settings, the picture can be adjusted to your personal preferences.

-The power cord should be connected.

-Connect the video cable from the monitor to the video card.

-Press the power button to turn on the monitor, the power indicator will light up.

3.2Control Buttons

-Power Button:

When pressed, the monitor enters the off mode, and the LED turns blank. Press again to restore normal status.

-Contrast:

Adjust contrast or function adjusts.

-Brightness:

Adjust brightness or function adjusts.

-Auto Adjust button / Exit:

1.When OSD menu is in active status, this button will act as EXIT-KEY (EXIT OSD menu).

2.When OSD menu is in off status, press this button over 2 seconds to activate the Auto Adjustment function. The Auto Adjustment function is used to set the HPos, VPos, Clock and Focus.

-Power Indicator:

Green — Power On mode.

Red — Off mode.

OSD Lock Function: To lock the OSD, press and hold the MENU button while the monitor is off and then press power button to turn the monitor on. To un-lock the OSD - press and hold the MENU button while the monitor is off and then press power button to turn the monitor on.

1.	Power Key	2.	LED
3.	MENU/ENTER	4.	Contrast
5.	Brightness	6.	Auto Adjust Key/Exit

6

AOC 193FW (+)

3.3 Adjusting The Picture

Adjustment steps:

1.Press the MENU-button to activate the OSD window.

2.Press or to navigate through the functions. Once the desired function is highlighted, press the MENU-button to activate it. If the function selected has a sub-menu, press or again to navigate through the sub-menu functions. Once the desired function is highlighted, press MENU-button to activate it.

3.Press or to change the settings of the selected function.

4.To exit and save, select the exit function. If you want to adjust any other function, repeat steps 2-3.

OSD TABLE:

	Main Menu	Main Menu	Sub Menu Item	Sub Menu Icon	Description
	Item	Icon
			Contrast		Contrast from Digital-register.
	Luminance
			Brightness		Backlight Adjustment
			Focus		Adjust Picture Phase to reduce
					Horizontal-Line noise
	Image Setup
			Clock		Adjust picture Clock to reduce
					Vertical-Line noise.
			H. Position		Adjust the horizontal position of
	Image				the picture.
	Position
			V. Position		Adjust the vertical position of the
					picture.
			Warm	N/A	Recall Warm Color Temperature
					from EEPROM.
	Color Temp.		Cool	N/A	Recall Cool Color Temperature
					from EEPROM.
			User / Red		Red Gain from Digital-register.

7

				AOC 193FW (+)
		User / Green		Green Gain Digital-register.
		User / Blue		Blue Gain from Digital-register.
		Analog	N/A	Select the analog signal input
Input signal
select
		Digital	N/A	Select the digital signal input
		H. Position		Adjust the horizontal position of
				the OSD.
OSD Setup		V. Position		Adjust the vertical position of the
				OSD.
		OSD Timeout		Adjust the OSD timeout.
		English	N/A	Set OSD display language to
				English.
		Deutsch	N/A	Set OSD display language to
				German.
		Français	N/A	Set OSD display language to
				French.
Language
		Español	N/A	Set OSD display language to
				Spain.
		Italiano	N/A	Set OSD display language to
				Italian.
			N/A	Set OSD display language to
				Simplified Chinese.
				Show the resolution, H/V
Information		Information	N/A	frequency and input port of current
				input timing.
				Clear each old status of
		Yes	N/A	Auto-configuration and set the
Reset				color temperature to Cool.
		No	N/A	Do not execute reset, return to
				main menu.
Exit		N/A	N/A	Exit OSD

8

AOC 193FW (+)

4. Input/Output Specification

4.1 Input Signal Connector

Analog connector

Pin No.	Description	Pin No.	Description
1.	Red Video	9.	+5V
2.	Green Video	10.	Detect Cable
3.	Blue Video	11.	Ground
4.	Ground	12.	DDC-Serial Data
5.	Ground	13.	H-Sync
6.	Red Ground	14.	V-Sync
7.	Green Ground	15.	DDC-Serial Clock
8.	Blue Ground
	VGA connector layout
	1	5
	6	10
	11	15

DVI-D connector

Pin No.	Description	Pin No.	Description
1.	TMDS data 2	13.	TMDS data 3
2.	TMDS data 2	14.	5V Power
3.	TMDS data 2/4 Shield	15.	GND
4.	TMDS data 4	16.	Hot Plug Detect
5.	TMDS data 4	17.	TMDS data 0
6.	DDC Clock	18.	TMDS data 0
7.	DDC Data	19.	TMDS data 0/5 Shield
8.	Analog Vertical Sync	20.	TMDS data 5
9.	TMDS data 1	21.	TMDS data 5
10.	TMDS data 1	22.	TMDS Clock Shield
11.	TMDS data 1/3 Shield	23.	TMDS Clock +
12.	TMDS data 3	24.	TMDS Clock

24 - Pin Color Display Signal Cable

9

AOC 193FW (+)

4.2 Factory Preset Display Modes

	Standard	Resolution		Horizontal	Vertical
				Frequency	Frequency
	Dos-mode	720 × 400		31.47kHz	70.0Hz
	VGA	640 × 480		31.47kHz	60.0Hz
		640 × 480		37.50kHz	75.0Hz
	SVGA	800	× 600	37.879kHz	60.0Hz
		800	× 600	46.875kHz	75.0Hz
		1024 × 768		48.363kHz	60.0Hz
	XGA	1024 × 768		56.476kHz	70.0Hz
		1024 × 768		60.021kHz	75.0Hz
	SXGA	1280	× 1024	64.000kHz	60.0Hz
		1280	× 1024	80.000kHz	75.0Hz
	WXGA	1440 × 900		55.935kHz	59.8Hz

4.3 Power Supply Requirements

	A/C Line voltage range	100 V ~ 240 V
	A/C Line frequency range	50 ± 3Hz, 60 ± 3Hz
	Current	1.5A max at 100V; 0.8A max at 240 V
	Peak surge current	< 55A peak at 240 VAC and cold starting
	Leakage current	< 3.5mA
	Power line surge	No advance effects (no loss of information or defect)
		with a maximum of 1 half-wave missing per second
	DC output Voltage	5VDC ± 5 ; 12VDC± 5
	CURRENT	1.5Amp (5V) 2 Amp (12V)

4.4 Panel Specification

4.4.1 Display Characteristics

10

AOC 193FW (+)

4.4.2 Optical Characteristics

11

AOC 193FW (+)

5. Block Diagram

5.1 Monitor Exploded View

12

5.2 Software Flow Chart

1

2

N

4

5

Y

6

7

Y

9

	10
	Y
N	12
	Y
	14

18	N	19

Y

AOC 193FW (+)

Y	3

N

N	8

N	11

13	N
Y

15	N	16
Y
17

13

AOC 193FW (+)

1)MCU initializes.

2)Is the EPROM blank?

3)Program the EPROM by default values.

4)Get the PWM value of brightness from EPROM.

5)Is the power key pressed?

6)Clear all global flags.

7)Are the AUTO and SELECT keys pressed?

8)Enter factory mode.

9)Save the power key status into EPROM. Turn on the LED and set it to green color. Scalar initializes.

10)In standby mode?

11)Update the lifetime of back light.

12)Check the analog port, are there any signals coming?

13)Does the scalar send out an interrupt request?

14)Wake up the scalar.

15)Are there any signals coming from analog port?

16)Display "No connection Check Signal Cable" message. And go into standby mode after the messages disappear.

17)Program the scalar to be able to show the coming mode.

18)Process the OSD display.

19)Read the keyboard. Is the power key pressed?

14

AOC 193FW (+)

5.3 Electrical Block Diagram

5.3.1 Main Board

LCD Interface

(CN503)

MCU
				TSU56AK-LF
MTV512 MV 44PIN-PLCC
(U601)				(Include ADC, OSD)
				(U401)

EPR_SDA

EPR_SCL

H sync

RGB

Crystal

EEPROM

X601

AT24C16N

V sync

CLK+

24Mhz

(U602)

RGB

CLK-

Crystal

D-Sub

DVI

X601

Connector

Connector

14.318Mhz

(CN301)

(CN302)

Key Board

CN602

DB15_SDA,

SDA,

DB15_SCL

SCL

EEPROM

EEPROM

M24C02

M24C02

(U301)

(U302)

15

AOC 193FW (+)

5.3.2 Inverter/Power Board

AC input

Bridge

Rectifier

Transformer

EMI filter

Rectifier

diodes

and Filter

DC-to-DC IC

Start Circuit: R903

Over

R904

Voltage

CN201

Protect

12V

5V

PWM

Feed

Control IC

back

circuit

ON/OFF

OSC

and

DC

Convert

MOSFET

Output

Circuit

Circuit

Lamp

PWM

Feedback

Over Voltage

PWM

ON/OFF Control

Circuit

Protect

Control IC

DIM

16

AOC 193FW (+)

6. Schematic

6.1 Main Board

TSU56AK SCHEMATIC

					B2
			B1
				RIN	RIN
				GNDR	GNDR
			TXD	GIN	GIN
			RXD	GNDG	GNDG
			DDC_CLK	SOG	SOG
			DDC_DAT	BIN	BIN
				GNDB	GNDB
			ST_DET1	HSYNC	HSYNC
			DVI_DET	VSYNC	VSYNC
			DDCCI_SEL
				R+	R+
				R-	R-
				G+	G+
				G-	G-
				B+	B+
				B-	B-
				CLK+	CLK+
				CLK-	CLK-
				DDC_WP
			3.INPUT
			B3
			DDCCI_SEL
			DVI_DET	DDC_WP
			ST_DET1	CSZ
			DDC_CLK		CSZ
	VCPU VCC12V	VCC5V	DDC_DAT	SCL	SCL
			RXD	SDA	SDA
			TXD	HWRESET	HWRESET
				INT	INT

	VCC5V	AD0	AD0
		AD1	AD1
	VCC12V	AD2	AD2
		AD3	AD3
	VCPU	Volume	Volume
	onPANEL_5V/3.3V
VCPU	onBACKLITE
VCC12V
VCC3.3	6.MCU
VCC1.8
VAA1
VAA2
VAA3
VAA4	B4
VCC5V
	onBACKLITE
	onPanel_5V/3.3V
	VCPU
	VCC12V
	VCC3.3
	VCC1.8	AdjBACKLITE	AdjBACKLITE
	VAA1		VLCD
	VAA2
	VAA3
	VAA4
	VCC5V	VLCD	4.SCALER
	2.POWER

VCC1.8 VCC3.3 VAA1 VAA2 VAA3 VAA4

VCC1.8

VCC3.3

VAA1

VAA2

VAA3

VAA4

		B5
PA[0..9]	PA[0..9]		PA[0..9]
	PB[0..9]				VLCD
PB[0..9]			PB[0..9]
			VLCD

5.PANEL INTERFACE

Title	TSU56AK FOR MYSON512 SWITCH
Size	Document Number			Rev
B	TOP			B
Date:	Wednesday , October 06, 2004	Sheet 1 of	6

18

AOC 193FW (+)

VCC5V

VCC12V

R202

VCC12V

6

CN201

10K£[ 1/16W

GND

1

2

ON_OFF

R201

4.7K£[ 1/16W

GND

3

4

DIM

VCC12V

5

6

VCC12V

D201

SS14

C

GND

7

8

GND

VCC5V+

C201

R212

4.7K£[ 1/16W

VCC5V

9

10

VCC5V

B

onBACKLITE 6

VCC5V

GND

11

12

GND

0.1uF

Q201

VCC5V

3,4,6

PMBS3904

E

CONN

FB201

VCPU

C

NC

VCPU

6

B

E

VCC5V

C202

C203

C204

C205

+

+

R203

220uF/25V

0.1uF

220uF/25V

0.1uF

1K£[ 1/16W

Brightness

C

R204

R205

4.7K£[ 1/16W

10K£[ 1/16W

VCC5V+

4

AdjBACKLITE

B

Q202

C206

PMBS3904

1uF/25V

E

C

B

E

C214

VCC5V

VCC12V VCC5V

VLCD

0.1uF

VLCD

5

VCC5V

VCC3.3 VCC12V

R206

R214

R208

10K£[ 1/16W

NC

10K£[ 1/16W

R209

R210

R213

Q203

C

R215

NC

2004/09/05 ADD

AO3401

0£[ 1/16W

NC

R207

B

Q204

51K£[ 1/16W

C217

TOUCH PANEL

4.7K£[ 1/16W

POWER

6

onPanel_5V/3.3V

PMBS3904

0.1uF

C207	E	+	C208	R211		VCC5V
0.1uF			10uF/16V	10K£[ 1/16W
					CN202
					1	C218	+
					2	47uF/25V

CONN

PITCH 2.0 GND

VCC5V+

D202

SOT-252

GS1D

U201

VCC1.8

3

AZ1117D-1.8

2

VCC1.8 4

VI

VO

C210

GND

C211

+

C212

0.1uF

47uF/16V

0.1uF

1

						VCC3.3
	TO-263					VCC3.3	4
					600 OHM	VCPU
					FB202
	U202					VAA1
3	AIC1084-33M		2
	VIN	VOUT				VAA1	4
1	ADJ		C215	+	C216	VAA2
			47uF/16V		0.1uF	VAA2	4
						VAA3
						VAA3	4
						VAA4
						VAA4	4

C219

0.1uF/16V

	H1
	8 7 6
9	8 7 6
	9	5
	1234
	1 2 3

		H2
		8 7 6
5	9	8 7 6
4		9	5
		1234
SCREW3.2RM		1 2 3

		H4
		8 7 6
5	9	8 7 6		5
4		9	5	4
		1234
SCREW3.2RM				SCREW3.2RM
		1 2 3

Title	TSU56AK FOR MYSON512 SWICH
Size	Document Number			Rev
B	POWER			B
Date:	Wednesday , October 06, 2004	Sheet 2 of	6

19

CN301

RXD

6

DB15

R329

R330

11

TXD

6

FB301

0£[ 1/16W

C304

0.047uF

1

R301

33£[ 1/16W

RIN

4

12

6

FB302

0£[ 1/16W

R302

33£[ 1/16W

C305

0.047uF

2

GIN

4

7

13

FB303

0£[ 1/16W

R303

33£[ 1/16W

NC

NC

3

C306

0.047uF

BIN

4

8

14

4

R325

C301

R326

75£[ 1/16W

R327

75£[ 1/16W

R304

470£[ 1/16W

C307

0.001uF

SOG

4

9

PC5V

C302

C303

15

5

75£[ 1/16W

NC

NC

NC

10

VGA_CON

D322

D323

17 16

R305

68£[ 1/16W

C308

0.047uF

GNDR

4

TZMC5V6-GS08 NC

R306

68£[ 1/16W

C309

0.047uF

GNDG

4

TZMC5V6-GS08 NC4/2/2004-Add R329,R330

R307

68£[ 1/16W

C310

0.047uF

GNDB

4

3

3 D302

3

D301

D303

VCC5V

BAV99

BAV99

BAV99

VCC5V

R308

2

1

2

1

2

1

10K£[ 1/16W

VCC5V

PC5V

1

2

R309

100£[ 1/16W

ST_DET1

6

D304

BAV70

HSI

FB304

430 OHM

R310

1K£[ 1/16W

HSYNC

4

VSI

R312

100£[ 1/16W

R311

1K£[ 1/16W

VSYNC

4

2004/08/19 ADD

3

3

D324

DSUBDDC_5V

C311

R313

C312

BAV99/NC

D319

D320

R314

D317

R317

TZMC5V6-GS08

TZMC5V6-GS08

47pF

2.2K£[ 1/16W

220pF

2.2K£[ 1/16W

TZMC5V6-GS08

R318

R335

C313

10K£[ 1/16W

U301

10K£[ 1/16W

4.7K£[ 1/16W

2

1

8

VCC

A0

1

0.1uF

VCC5V

7

2

CLK_DDC

WP

A1

R315

100£[ 1/16W

6

3

DAT_DDC

R316

100£[ 1/16W

5

SCL

A2

4

SDA

GND

4/2/2004-Add D324 Solution

M24C02WMN6

D321

D318

R341

NC

operating

TZMC5V6-GS08

TZMC5V6-GS08

6

DDC_DAT

voltage-2.5v-5.5v

6

DDC_CLK

R342

NC

CN302

VCC5V

8/9/2004-Add DVI

R

25

CABLE Detect

26

R331

G

27

VCC5V

DVI5V

B

29

10K£[ 1/16W

1

2

RGB GND

28

HSYNC

8

D305

VSYNC

R332

1K£[ 1/16W

DVI_HPD

15

DVI_DET

6

SYNC GND

R319

DVI5V

BAV70

DDC SCL

6

CLK_DDC2

100£[ 1/16W

R321

7

DAT_DDC2

R320

100£[ 1/16W

DDC SDA

16

10K£[ 1/16W

operating

+5V

14

DVIDDC_5V voltage-2.5v-5.5v

HPD

11

R333NC

2004/09/05

3

1/3shield

3

D325

D314

D315

D316

C314

ADD ESD

R323

R324

C315

2/4shield

U302

19

MLL5232B 5.6V

LL5232B 5.6V 5%

LL5232B 5.6V 5%

LL5232B 5.6V 5%

0.1uF

10K£[ 1/16W

10K£[ 1/16W

A0

1

0.1uF

clk shield

22

Solution

R336

4.7K£[ 1/16W 8

VCC

0/5shield

18

7

WP

A1

2

DAT0+

R343

10£[ 1/16W

B+

4

6

3

SCL

A2

17

R344

10£[ 1/16W

5

4

DAT0-

B-

4

SDA

GND

10

R345

10£[ 1/16W

DAT1+

G+

4

9

R346

10£[ 1/16W

M24C02WMN6

DAT1-

G-

4

2

R347

10£[ 1/16W

R334

DAT2+

R+

4

1

R348

10£[ 1/16W

DAT2-

R-

4

13

NC

DAT3+

8/9/2004-Add DDC/CI

5

DAT3-

12

Solution

DAT4+

4

DDC_WP 6

DAT4-

20

4/2/2004-Add W/P control by MCU

DAT5+

21

DAT5-

23

R349

10£[ 1/16W

CLK+

4

clk+

24

R350

10£[ 1/16W

clk-

CLK-

4

31

32

3

D306

3

D307

3

D308

3

D309

3

D310

3

D311

3

D312

3

D313

31

32

JACK NC

BAV99

BAV99

BAV99

BAV99

BAV99

BAV99

BAV99

BAV99

VCC5V	C318		C319		C320		C321		C322		C323		C324		C325
2	1	2	1	2	1	2	1	2	1	2	1	2	1	2	1
	0.1uF		0.1uF		0.1uF		0.1uF		0.1uF		0.1uF		0.1uF		0.1uF

AOC 193FW (+)

VCC5V DVIDDC_5V

DSUBDDC_5V

R340

2

1

D326

0£[ 1/16W

BAV70

3

U303

12

0A

ZA

14

DDC_CLK 6

13

1A

ZB

15

DDC_DAT 6

2

0B

1

5

1B

ZC

4

0C

3

1C

6

16

INH

VCC

11

SA

7

10

9

SB

VEE

8

SC

GND

C316

74VHC4053

0.1uF

VCC5V

R338

10K£[ 1/16W

R337

4.7K

£[ 1/16W

C317

C

R339 4.7K£[ 1/16W

B

DDCCI_SEL 6

0.1uF

Q301

E

PMBS3904

	Title	TSU56AK FOR MYSON512 SWITCH
	Size	Document Number			Rev
	C	INPUT			B
20	Date:	Wednesday , October 06, 2004	Sheet 3 of	6

AOC 193FW (+)

																					VAD					VPLLVDVI
																						65
																				U401	55					35				45		51
3								GNDR												60	RIN0M						AVDDMPLL				AVDDDVI AVDDDVI
																				63	AVDD AVDD
3								RIN												62	RIN0
3								GIN													GIN0
																				59
3								GNDG													GIN0M
																				61
3								SOG													SOGIN0
																				58
3								BIN													BIN0
																				57
3								GNDB													BIN0M
																				37
3						HSYNC															HSYNC0
																				38
3						VSYNC															VSYNC0
																				29
																					DDC1_CLK/GPO8
																				28
																					DDC1_DAT/GPO7
3								R+												40
																					R+
3								R-												41	R-
																				43
3								G+													G+
																				44
3								G-													G-
																				46
3								B+													B+
																				47
3								B-													B-
																				49
3								CLK+													CK+
																				50
3								CLK-													CK-
																				52
VDVI																					REXT
								R403							390£[ 1/16W
															C401					66	REFP
																				67
															0.1uF						REFM
6								CSZ												69
																					CSZ
6								SCL												71	SCL
																				70
6								SDA													SDA
																				32
6 HWRESET																				72	HWRESETZ
6															INT						INT
																				73
2					AdjBACKLITE																PWM0
6								Volume												74	PWM1
																				33
								C402							22pF						XIN
															X401
								14.318MHz												34	XOUT
								C403							22pF					3
					C404										0.1uF						BYPASS
																				2
																					AVSS_LPLL								AVSS MPLL			AVSS PLL
																					AVSS AVSS AVSS
																					68		56		64		36				54

VCC3.3 FB401 VPO

VCC1.8 FB402 VDD

2

VCC3.3

600 OHM

2

VCC1.8

600 OHM

C405

+

C414

+

VDPLL

VPO

VDD

10uF/16V

10uF/16V

C406C407C408C409C410C411C412C413

C415C416C417C418

0.1uF0.1uF0.1uF0.1uF0.1uF0.1uF0.1uF0.1uF

0.1uF0.1uF0.1uF0.1uF

53

11 21 84 94 104 114 126

18 87 97 117

AVDDPLL

VDDP VDDP VDDP VDDP VDDP VDDP VDDP

VDDCVDDCVDDCVDDCLVA3M

106

PA2

LVA3P

102

PA0

103

PA1

LVACKP

107

PA3

LVACKM

108

PA4

LVA2P

109

PA5

LVA2M

110

PA6

LVA1P

111

PA7

LVA1M

112

PA8

LVA0P

113

PA9

VAA1

FB403

VAD

LVA0M

PA[0..9]

PA[0..9]

5

2

VAA1

600 OHM

C419

+

10uF/16V

118

PB0

C420C421

NC/LVB3P

PB[0..9]

0.1uF0.1uF

119

PB1

PB[0..9]

5

NC/LVB3M

120

PB2

NC/LVBCKP

121

PB3

NC/LVBCKM

122

PB4

NC/LVB2P

123

PB5

NC/LVB2M

124

PB6

NC/LVB1P

125

PB7

NC/LVB1M

128

PB8

VAA2

FB404

VPLL

NC/LVB0P

1

PB9

NC/LVB0M

2

VAA2

TSU56AK

600 OHM

C422

+

10uF/16V

C423

0.1uF

VCC5V		VAA3 FB405 VDVI
2	VAA3	600 OHM

R407	R405 R404 R406		C424	+
10K£[ 1/16W		10K£[ 1/16W	10uF/16V
				C425C426
10K£[ 1/16W	10K£[ 1/16W
		VCC3.3		0.1uF0.1uF

ADO/NC

30

AD0

6

77

AD1/NC

AD1

6

78

R402

AD2/NC

AD2

6

FB406

31

VAA4

VDPLL

AD3/NC

AD3

6

100£[ 1/16W

BUS TYPE/NC

6

2

VAA4

600 OHM

R401

C427

+

10uF/16V

AVSSDVI AVSSDVI AVSSDVI

NC

C428

GNDP GNDP GNDP GNDP GNDP GNDP GNDP

GNDC GNDC GNDC GNDC

0.1uF

R401

R402

39 42 48

10 20 85 95 105 115 127

19 86

96

116

Direct Bus

NC

4.7K

Title

TSU56AK FOR MYSON512 SWITCH

3-WIRE

4.7K

NC

Size

Document Number

Rev

B

SCALER

B

Date:

Wednesday , October 06, 2004

Sheet

4

of

6

21

4	PA[0..9]				PA[0..9]		PA0	LVA3P
							PA1	LVA3M
							PA2	LVACKP
							PA3	LVACKM
							PA4	LVA2P
							PA5	LVA2M
							PA6	LVA1P
							PA7	LVA1M
					PB[0..9]		PA8	LVA0P
4	PB[0..9]						PA9	LVA0M
							PB0	LVB3P
							PB1	LVB3M
							PB2	LVBCKP
							PB3	LVBCKM
							PB4	LVB2P
							PB5	LVB2M
							PB6	LVB1P
							PB7	LVB1M
							PB8	LVB0P
							PB9	LVB0M

AOC 193FW (+)

CN503

LVB0M

RXO0-

1

2

RXO0+

LVB0P

LVB1M

RXO1-

3

4

RXO1+

LVB1P

LVB2M

RXO2-

5

6

RXO2+

LVB2P

LVBCKM

RXOC-

7

8

RXOC+

LVBCKP

LVB3M

RXO3-

9

10

RXO3+

LVB3P

LVA0M

RXE0-

11

12

RXE0+

LVA0P

LVA1M

RXE1-

13

14

RXE1+

LVA1P

LVA2M

RXE2-

15

16

RXE2+

LVA2P

LVACKM

RXEC-

17

18

RXEC+

LVACKP

LVA3M

RXE3-

19

20

RXE3+

LVA3P

21

22

23

24

CONN

R502

VLCD

0£[ 1/16W

VLCD

2

C509

C510

R503

+

22uF/16V

0.1uF

2.2K£[ 1/16W

Title	TSU56AK FOR MYSON512 SWITCH
Size	Document Number			Rev
A	PANEL INTERFACE			B
Date:	Wednesday , October 06, 2004	Sheet 5 of	6

22

AOC 193FW (+)

VCPU

2 VCPU
R601	R602 C601		RN601	1
			R607 10K£[ 1/16W
10K£[ 1/16W	0.1uF	R606	10K£[ 1/16W
		10K£[ 1/16W
4/2/2004-change Crystal from 20MHz to 24MHz	10K£[ 1/16W

C602

22pF

U601

44

8

X601

35

43

NC

VCC

P1.1

P1.0

42

C603

24MHz

21

XTAL1

P1.2

41

+

40

P1.3

VCPU

U603

MAX810STR (NC)

10uF/16V

20

I/OP1.4

39

XTAL2

P1.5

38

C604

22pF

37

3

2

10

P1.6

36

VCC

RST

RESET

P1.7

GND

P6.0

24

D601

R603

12

NC

P6.1

25

4

INT

14

26

1

INT0/P3.2

P6.2

LL4148-GS08 10K£[ 1/16W

P6.3

27

Reset

33

ALE/P

28

P6.4

Circuit

VCPU

32

VSYNC

P6.5

29

17

30

R604

10K£[ 1/16WR608

T1/P3.5

P6.6

100£[ 1/16W

2

31

P5.0

P6.7

C605

R605

10K£[ 1/16WR609

100£[ 1/16W

3

16

P5.1

T0/P3.4

U602

4

18

R652 10K£[ 1/16W

P5.2

P7.6/CLKO

0.1uF

1

8

5

15

A0

VCC

P5.3

INT1/P3.3

2

7

R639

100£[ 1/16W

6

19

A1

WP

P5.4

P7.7

3

6

7

A2

SCL

P5.5

4

5

8

VSS

13

R610

220£[ 1/16W

GND

SDA

P5.6

P3.1/TXD

9

11

R611

220£[ 1/16W

AT24C16N-10SC-2.7

R638

NC

P5.7

P3.0/RXD

R634

NC

R615

10K£[ 1/16W

MYSON512

22

R635

NC

VCC12V

VCC5V

R614

10K£[ 1/16W

FB601 600 OHM

VCC5V

VCPU

CN603

CN601

FB602 600 OHM

VCC12V

2

1

1

2

1

2

2

VCC5V

2,3,4

3

3

3

4

4

Standby

4

5

6

R627

10K£[ 1/16W

7

8

R626

10K 1/16W

Mute

NC

9

10

OUT-R+

3

ST_DET1

DVI_DET 3

OUT-L+

11

12

OUT-L-

13

14

OUT-R-

C613

C612

VCC5V

CONN

0.1uF

0.1uF

R640

1K£[ 1/16W

Q604

Volume

4

R641 4.7K£[ 1/16W

PMBS3904

VCPU

FB603

R625

10K£[ 1/16W

600 OHM

R617

C617

C611

Canel R640 R642

120£[ 1/16W

100pF

1uF/25V

R616

E

LED_G

B

Q601

CN602

4.7K£[ 1/16W

PMBS3906

1

2

C

LED_GRN

LED_ORANGE

AUTO

3

4

R620

470£[ 1/16W

5

6

RIGHT

R622

470£[ 1/16W

7

8

POWER

R624

470£[ 1/16W

9

10

C606

C608

11

12

OUT-R+

C610

OUT-L+

13

14

0.001uF

0.001uF

0.001uF

OUT-L-

15

16

OUT-R-

CON16A

23

7 2

	RN602
3 4 1 2 3 4	10K£[ 1/16W
	R644		R645	R646
6 5 8 7 6 5	10K£[ 1/16W		nc	nc
					AD0	4
					AD1	4
					AD2	4
					AD3	4
					CSZ	4
					SCL	4
	LED_G				SDA	4
	R636	100£[ 1/16W			HWRESET 4
					onPANEL_5V/3.3V 2
	POWER				onBACKLITE 2
	ENTER
	RIGHT
					DDCCI_SEL 3
	LEFT
	AUTO
	LED_O
					DDC_DAT 3
					DDC_CLK 3
					TXD	3
					RXD	3

2004/08/19 MODIFY

DDC_WP 3

R613
C618
0.1uF		C
		B	Q605
10K£[ 1/16W
R647			PMBS3904
22K£[ 1/16W		E
		C619
	R651	0.1uF/16V
	10K£[ 1/16W
VCPU
	R618
	120£[ 1/16W
E	Q602
	PMBS3906	R619	LED_O
	B
		4.7K£[ 1/16W

		C
R621	470£[ 1/16W	ENTER
R623	470£[ 1/16W	LEFT

C609

C607

0.001uF

0.001uF

Title TSU56AK FOR MYSON512 SWITCH

Size	Document Number				Rev
B	MCU				B
Date:	Wednesday , October 06, 2004	Sheet	6	of	6

AOC 193FW (+)

6.2 Power Board

Adapter

24

AOC 193FW (+)

Inverter

25

AOC 193FW (+)

26

AOC 193FW (+)

7. PCB Layout

7.1 Main Board

715L1423-1-512-2

27

AOC 193FW (+)

7.2 Adapter Board

715V901-1-8

7.3 Inverter Board

715L1299-4

28

AOC 193FW (+)

8. Maintainability

8.1 Equipments and Tools Requirement

1.Voltmeter.

2.Oscilloscope.

3.Pattern Generator.

4.DDC Tool with an IBM Compatible Computer.

5.Alignment Tool.

6.LCD Color Analyzer.

7.Service Manual.

8.User Manual.

29

AOC 193FW (+)

8.2 Trouble Shooting

8.2.1 Main Board

1. No Screen Appear

Measured CN201 pin5/6 = 12V?

Check Correspondent component.

Measured CN201 pin 9/10= 5V?

Is there any shortage or cold solder?

Measured U202 pin 2= 3.3V?

Yes. There is OSD show

Yes, all DC level exist

Led Green

Disconnected the Signal cable (Loose the

Connected the Signal cable again,

Signal cable), Is the screen show “Cable Not

Check LED status.

Connected”?

Show noting

Led Orange

Replace U601

Check Power switch is in Power-on

status, and check if Power switch had

Connected the Signal cable

been stuck?

again

Led orange

OK, Keyboard no stuck

Led Green

Check the Wire-Harness from CN503

OK, Wire tight enough

Check Panel-Power Circuit Block

OK, Panel Power OK

Check U401 Data-output Block

OK

Replace Power board and Check Inverter control relative circuit

Measured RGB (R301, R302, R303) H,V							Check Correspondent
Input at U401 pin 37,38 ,was there have							component short/open
signal ?							(Protection Diode)
								NG
			OK, input Normal
	Measured Crystal X401 (14.318MHz)

OK, clock normal

Replace U401

			OK
Re-do White balance adjust

Note:1. If replace “MAIN-BOARD”, Please re-do “DDC-content” programmed & “WHITE-Balance”. 2. If replace “Power Board” only, Please re-do “ WHITE-Balance”

30