AOC 210S Schematic

22" LCD Color Monitor

AOC 210S

Service

Service

Service

					Horizontal Frequency
		TABLE OF CONTENTS			30-83 KHz
Description		Page		Description	Page
Table Of Contents.......……..............................…........1				5.2.Electrical Block	Diagram……………..….......15
Revision	List.…........................................……......2			6.Schematic……………......................................17
Important	Safety Notice.……..................……......3			6.1 Main Board……..............................................17
1.Monitor Specification..............................………........4				6.2 Power Board....……....................................21
2.LCD Monitor Description…………………………….......5				7.PCB Layout..………….......................................23
3.Operation		Instruction…………...............……...........6		7.1.Main Board………........................................23
3.1.General		Instructions...........................…...........6		7.2 Power Board....……....................................26
3.2.Control Button…………….…..............……...............6				7.3.Key Board…………….....................................28
3.3.OSD Menu…………….…...........................…............7				8.Maintainability……….......................................29
4.Input/Output Specification............……………............9				8.1.Equipments and Tools Requirement...............29
4.1.Input Signal Connector............………….................9				8.2.Trouble Shooting…………..............................30
4.2.Factory Preset Display Modes..........................10				9.White-Balance, Luminance adjustment.............36
4.3.Panel Specification.....………………..................11				10.Monitor Explode View………..…….…............38
5.Block Diagram…..…...................…………................13				11.BOM List…………………………………............39
5.1.Software Flow Chart……..…………....….......13				12.Different Parts List………………………………54

SAFETY NOTICE

ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.

CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

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22" LCD Color Monitor

AOC 210S

Revision List

Version	Release Date	Revision History	TPV Model Name
			TC6MMADBWQA5HP
A00	Jan.12, 2007	Initial release
			TC6MMANQWQACHP
			TC6MMANPWQXMHP

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22" LCD Color Monitor

AOC 210S

Important Safety Notice

Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service procedures recommended by AOC and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose. The special tools should be used when and as recommended.

It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in order to minimize the risk of personal injury to service personnel. The possibility exists that improper service methods may damage the equipment. It is also important to understand that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE. AOC could not possibly know, evaluate and advise the service trade of all conceivable ways in which service might be done or of the possible hazardous consequences of each way. Consequently, AOC has not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not recommended by AOC must first satisfy himself thoroughly that neither his safety nor the safe operation of the equipment will be jeopardized by the service method selected.

Hereafter throughout this manual, AOC Company will be referred to as AOC.

WARNING

Use of substitute replacement parts, which do not have the same, specified safety characteristics may create shock, fire, or other hazards.

Under no circumstances should the original design be modified or altered without written permission from AOC. AOC assumes no liability, express or implied, arising out of any unauthorized modification of design.

Servicer assumes all liability.

FOR PRODUCTS CONTAINING LASER:

DANGER-Invisible laser radiation when open AVOID DIRECT EXPOSURE TO BEAM.

CAUTION-Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

CAUTION -The use of optical instruments with this product will increase eye hazard.

TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART NUMBERS IN THE PARTS LIST SECTION OF THIS SERVICE MANUAL.

Take care during handling the LCD module with backlight unit

-Must mount the module using mounting holes arranged in four corners.

-Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the screen. -Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to the panel.

-Protect the module from the ESD as it may damage the electronic circuit (C-MOS). -Make certain that treatment person’s body is grounded through wristband.

-Do not leave the module in high temperature and in areas of high humidity for a long time. -Avoid contact with water as it may a short circuit within the module.

-If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may damage the panel.)

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22" LCD Color Monitor				AOC 210S
1. Monitor Specifications
		Driving system		TFT Color LCD
			Size	558mm ( 22")
	LCD Panel	Pixel pitch		0.282mm( H )x 0.282mm( V )
		Response time (type)		5ms for CMO panel
		Viewable angle		170˚ (H) 160˚ (V)
		Video		R,G,B Analog Interface
		Sync. Type		H/V TTL
	Input
		H-Frequency		30kHz – 83kHz
		V-Frequency		55-75Hz
	Power Consumption	Active		<49W
		Standby		<1W
	Display Color	16.7M
	Dot Clock	165MHz
	Contrast Ratio	700:1
	White Luminance	300cd/m2
	Max. Resolution	1680 x 1050
	Plug & Play	VESA DDC2BTM
	Power Source	100~240VAC,47~63Hz
	Input Connector	15-pin Mini D-Sub
	Input Video Signal	Analog:0.7Vp-p(standard),75 OHM, Positive
	Maximum Screen	Horizontal : 473.76mm
	Size	Vertical: 296.1mm
	Environmental	Operating Temp:0°C to 50°C
		Storage Temp: -20°C to 60°C
	Considerations
		Operating Humidity: 10% to 80%

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22" LCD Color Monitor

AOC 210S

2. LCD Monitor Description

The LCD monitor will contain a main board, a power board and a key board which house the flat panel control logic, brightness control logic and DDC.

The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage.

Monitor Block Diagram

	CCFL Drive.	Flat Panel and
		CCFL backlight

								RS232 Connector
Power board			Main Board
								For white balance
(Include: adapter, inverter)
								adjustment in factory
								mode
			Key Board
								Video signal, DDC
AC-IN
				HOST Computer
100V-240V

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22" LCD Color Monitor

AOC 210S

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 the front of the 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

3.2.1 Key Control

3.2.2Key Function

1.DDC-CI

2.Auto Config

3.Eco Mode/ down

4.Up

5.Menu / Enter

6.Power Button & Indicator

OSD Settings

•Press DDC-CI button continuously for 7 seconds to turn on the DDC-CI function.

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

•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.

•Press+ or - to change the settings of the selected function. To exit and save, select the exit function. If you want to adjust any other function, repeat steps 2-3.

•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.

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22" LCD Color Monitor	AOC 210S
3.3 OSD Menu

Function Control Illustration

	Luminance
	Brightness			Backlight Adjustment
	Contrast			Contrast from Digital-register.
		Standard		Standard Mode
	Eco mode
		Text		Text Mode
		Internet		Internet Mode
		Game		Game Mode
		Movie		Movie Mode
		Sports		Sports Mode
	Gamma	Gamma1		Adjust to Gamma1
		Gamma2		Adjust to Gamma 2
		Gamma3		Adjust to Gamma 3
	DCR	Off		Disable dynamic contrast ratio
		On		Enable dynamic contrast ratio
	Image Setup
	Clock			Adjust picture Clock to reduce Vertical-Line
				noise.
	Focus			Adjust Picture Phase to reduce Horizontal-Line
				noise
	H.Position			Adjust the verticalposition of the picture.
	V.Position			Adjust the horizontal position of the picture.
	Color Temp.
	Warm			Recall Warm Color Temperature from EEPROM.
			7

22" LCD Color Monitor				AOC 210S
		Normal		Recall Normal Color Temperature from
				EEPROM.
		Cool		Recall Cool Color Temperature from EEPROM.
		sRGB		Recall sRGB Color Temperature from EEPROM.
			User-B	Blue Gain from Digital-register
			User-G	Green Gain Digital-register.
		User	User-R	Red Gain from Digital-register
			User-Y	Yellow Gain from Digital-register
			User-C	Cyan Gain from Digital-register
			User-M	Magenta Gain from Digital-register
		Color Boost
		Full Enhance	on or off	Disable or Enable Full Enhance Mode
		Nature Skin	on or off	Disable or Enable Nature Skin Mode
		Green Field	on or off	Disable or Enable Green Field Mode
		Sky-blue	on or off	Disable or Enable Sky-blue Mode
		AutoDetect	on or off	Disable or Enable AutoDetect Mode
		Demo	on or off	Disable or Enable Demo
		Picture Boost
		Frame Size		Adjust Frame Size
		Brightness		Adjust Frame Brightness
		Contrast		Adjust Frame Contrast
		Hue		Adjust Frame Hue
		Saturation		Adjust Frame Saturation
		Position		Adjust Frame Position
		Bright Frame	on or off	Disable or Enable Bright Frame
		OSD Setup
		H.Position		Adjust the verticalposition of OSD
		V.Position		Adjust the horizontal position of OSD
		Timeout		Adjust the OSD Timeout
		Language		Select the OSD language
		Extra
		Input Select	Digital	Select Digital Sigal Source as Input
			Analog	Select Analog Sigal Source as Input
		Auto Config		Auto adjust the picture to default
		Reset	yes or no	Reset the menu to default
		Information		Show the information of the main image and
				sub-image source

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22" LCD Color Monitor

AOC 210S

4. Input/Output Specification

4.1 Input Signal Connector

Analog connectors

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

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22" LCD Color Monitor										AOC 210S
4.2 Factory Preset Display Modes
					VESA MODES
						Horizontal		Vertical
						Nominal		Nominal		Nominal
							Sync		Sync	Pixel
	Mode	Resolution		Total		Frequency		Freq.
							Polarity		Polarity	Clock
						+/- 0.5kHz		+/- 1 Hz
										(MHz)
		640x480@60Hz		800 x 525		31.469	N	59.940	N	25.175
	VGA
		640x480@72Hz		832 x 520		37.861	N	72.809	N	31.500
		640x480@75Hz		840 x 500		37.500	N	75.00	N	31.500
		800x600@56Hz		1024 x 625		35.156	N/P	56.250	N/P	36.000
	SVGA	800x600@60Hz		1056 x 628		37.879	P	60.317	P	40.000
		800x600@72Hz		1040 x 666		48.077	P	72.188	P	50.000
		800x600@75Hz		1056x625		46.875	P	75.000	P	49.500
		1024x768@60Hz		1344x806		48.363	N	60.004	N	65.000
	XGA	1024x768@70Hz		1328x806		56.476	N	70.069	N	75.000
		1024x768@72Hz		1304x798		57.7	P	72	P	78.4
		1024x768@75Hz		1312x800		60.023	P	75.029	P	78.750
		1280x1024@60Hz		1688x1066		63.981	P	60.020	P	108.000
		1280x1024@70Hz				74.4	P	70	P	124.9
	SXGA
		1280x1024@72Hz				77.9	P	72	P	134.6
		1280x1024@75Hz		1688x1066		79.976	P	75.025	P	135.000
		1280x960@60Hz		1800x1000		60	P	60	P	108
	WSXGA	1680x1050@60Hz		2240x1089		65.29	N	59.95	P	146.25
					IBM MODES
						Horizontal		Vertical
	DOS	720x400@70Hz		900 x 449		31.469	N	70.087	P	28.322
	DOS	640x350@70Hz		800 x 449		31.469	P	70.087	N	25.175
	XGA	1024x768@72Hz		1304 x 798		57.515	P	72.1	P	75.000
					MAC MODES
	VGA	640x480@67Hz		864x525		35.000	N	66.667	N	30.240
	SVGA	832x624@75Hz		1152x667		49.725	N	74.551	N	57.2832
	XGA	1024x768@60Hz		1312x813		48.780	N	60.001	N	64.000
		1024x768@75Hz		1328x804		60.241	N	74.927	N	80.000

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22" LCD Color Monitor	AOC 210S
4.3 Panel Specification
4.3.1 General Features

The M220Z1-L01 model is a 22 inch wide TFT-LCD module with a 4-CCFL Backlight Unit and a 30-pin 2ch-LVDS interface. This module supports 1680 x 1050 WSXGA+ (16:10 wide screen) mode and displays up to 16.7 millions colors. The inverter module for the Backlight Unit is not built in.

4.3.2Features

-Super wide viewing angle

-High contrast ratio

-Fast response time

-High color saturation (EBU Like Specifications)

-WSXGA+ (1680 x 1050 pixels) resolution

-DE (Data Enable) only mode

-LVDS (Low Voltage Differential Signaling) interface

4.3.3Display Characteristics

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22" LCD Color Monitor

AOC 210S

4.3.4 Optical Characteristics

4.3.5Electrical Characteristics

(1)TFT-LCD

(2) Backlight

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22" LCD Color Monitor

AOC 210S

5. Block Diagram

5.1 Software Flow Chat

1

2	Y	3

N

4

5 N

Y

6

7	N	8

Y

9

	10	N	11
	Y
N	12		13	N
	Y		Y
	14		15	N	16
			Y
			17

18	N	19

Y

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22" LCD Color Monitor

AOC 210S

1)MCU initialize.

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 message 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?

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22" LCD Color Monitor

5.2 Electrical Block Diagram

5.2.1 Main Board

Flash Memory

PM25LV010-25 SCE (U402)

SDA

SCL

EEPROM 24LC16B/SNG (U403)

AOC 210S

Panel Interface

(CN101)

Scalar TSUMU58WHJ-LF

(Include MCU, ADC, OSD)

(U401)

			H sync
Crystal			V sync
			RGB
14.318MHZ
(X401)
			D-Sub
			Connector
			(CN405)
			VGA_SDA,
			VGA_SCL
			EEPROM
			M24C02
			(U404)

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Key Control

Interface

(CN403)