AOC 2210S Schematic

22" LCD Color Monitor AOC 2210S

Service

Service

Service

Horizontal Frequency

30-83 KHz

TABLE OF CONTENTS

Description

Table Of Contents.......……..............................…........1

Revision List.…........................................……......2

Important Safety Notice.……..................……......3

1.Monitor Specification..............................………........4

2.LCD Monitor Description…………………………….......5

3.Operation Instruction…………...............……...........6

3.1.General Instructions...........................…...........6

3.2.Control Button…………….…..............……...............6

3.3.OSD Menu…………….…...........................…............7

4.Input/Output Specification............……………............9

4.1.Input Signal Connector............………….................9

4.2.Factory Preset Display Modes..........................10

4.3.Panel Specification.....………………..................11

5.Block Diagram…..…...................…………................13

5.1.Software Flow Chart……………..…………....….......13

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

Page Description Page

5.2.Electrical Block Diagram……………..….......15

6.Schematic……………......................................17

6.1 Main Board……..............................................17

6.2 Power Board....……....................................21

7.PCB Layout..………….......................................23

7.1.Main Board………..……........................................23

7.2.Power Board....………....................................26

7.3.Key Board……………............................................28

8.Maintainability……….......................................29

8.1.Equipments and Tools Requirement...............29

8.2.Trouble Shooting…………..............................30

9.White-Balance, Luminance adjustment…….............36

10.Monitor Exploded View……...……..…….…............38

11.BOM List…………..…………………………............39

12.Different Parts List……………………………………54

SAFETY NOTICE

1

22" LCD Color Monitor AOC 2210S

Revision List

Version Release Date Revision History TPV Model Name

TC6MMADBWQA5HP

A00 Jan.12, 2007 Initial release

TC6MMANQWQACHP

TC6MMANPWQXMHP

2

22" LCD Color Monitor AOC 2210S

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.)

3

22" LCD Color Monitor AOC 2210S

1. Monitor Specifications

Driving system TFT Color LCD

LCD Panel

Response time (type) 5ms for CMO panel

Input

Power Consumption

Display Color 16.7M

Dot Clock 165MHz

Contrast Ratio 700:1

White Luminance 300cd/m

Max. Resolution 1680 x 1050

Plug & Play VESA DDC2BTM

Size

Pixel pitch 0.282mm( H )x 0.282mm( V )

Viewable angle 170˚ (H) 160˚ (V)

Video R,G,B Analog Interface

Sync. Type H/V TTL

H-Frequency 30kHz – 83kHz

V-Frequency 55-75Hz

Active <49W

Standby <1W

2

558mm ( 22")

Power Source 100~240VAC,47~63Hz

Input Connector

Input Video Signal Analog:0.7Vp-p(standard),75 OHM, Positive

Maximum Screen

Size

Environmental

Considerations

15-pin Mini D-Sub

Horizontal : 473.76mm

Vertical: 296.1mm

Operating Temp:0°C to 50°C

Storage Temp: -20°C to 60°C

Operating Humidity: 10% to 80%

4

22" LCD Color Monitor AOC 2210S

(

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.

Power board

Include: adapter, inverter)

AC-IN

100V-240V

Monitor Block Diagram

CCFL Drive.

Key Board

Flat Panel and

CCFL backlight

Main Board

HOST Computer

RS232 Connector

For white balance

adjustment in factory

mode

Video signal, DDC

5

22" LCD Color Monitor AOC 2210S

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.

-

3.2 Control Buttons

3.2.1 Key Control

3.2.2 Key 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.

6

22" LCD Color Monitor AOC 2210S

3.3 OSD Menu

Function Control Illustration

Luminance

Brightness Backlight Adjustment

Contrast Contrast from Digital-register.

Standard Standard Mode

Eco mode

Gamma

DCR

Image Setup

Clock

Text Text Mode

Internet Internet Mode

Game Game Mode

Movie Movie Mode

Sports Sports Mode

Gamma1 Adjust to Gamma1

Gamma2 Adjust to Gamma 2

Gamma3 Adjust to Gamma 3

Off Disable dynamic contrast ratio

On Enable dynamic contrast ratio

Adjust picture Clock to reduce Vertical-Line

noise.

Focus

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.

Adjust Picture Phase to reduce Horizontal-Line

noise

7

22" LCD Color Monitor AOC 2210S

Normal

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.

Recall Normal Color Temperature from

EEPROM.

User

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

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

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

Auto Config Auto adjust the picture to default

Reset yes or no Reset the menu to default

Information

Digital Select Digital Sigal Source as Input

Analog Select Analog Sigal Source as Input

Show the information of the main image and

sub-image source

8

22" LCD Color Monitor AOC 2210S

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

15

6

11 15

10

9

22" LCD Color Monitor AOC 2210S

4.2 Factory Preset Display Modes

VESA MODES

Horizontal Vertical

Mode Resolution Total

640x480@60Hz 800 x 525 31.469 N 59.940 N 25.175

VGA

SVGA

XGA

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

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

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

Frequency

+/- 0.5kHz

Nominal

Sync

Polarity

Nominal

Freq.

+/- 1 Hz

Sync

Polarity

Nominal

Pixel

Clock

(MHz)

SXGA

WSXGA 1680x1050@60Hz 2240x1089 65.29 N 59.95 P 146.25

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

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

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

IBM MODES

MAC MODES

10

22" LCD Color Monitor AOC 2210S

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.

4.3.2 Features

- 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

4.3.3 Display Characteristics

11

22" LCD Color Monitor AOC 2210S

4.3.4 Optical Characteristics

4.3.5 Electrical Characteristics

(1) TFT-LCD

(2) Backlight

12

22" LCD Color Monitor AOC 2210S

5. Block Diagram

5.1 Software Flow Chat

1

2

N

4

5

Y

6

7

Y

9

Y

N

N

3

13

N

13

15

11

17

N

Y

N

Y

16

10

Y

N

18

N

12

Y

14

19

Y

22" LCD Color Monitor AOC 2210S

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?

14

22" LCD Color Monitor AOC 2210S

_

5.2 Electrical Block Diagram

5.2.1 Main Board

Panel Interface

Flash Memory

PM25LV010-25 SCE

(U402)

24LC16B/SNG

SDA

SCL

EEPROM

(U403)

Scalar TSUMU58WHJ-LF

(Include MCU, ADC, OSD)

Crystal

14.318MHZ

(X401)

(CN101)

(U401)

D-Sub

Connector

(CN405)

VGA_SDA,

VGA

EEPROM

M24C02

(U404)

Key Control

Interface

(CN403)

H sync

V sync

RGB

SCL

15

22" LCD Color Monitor AOC 2210S

5.2.2 Inverter/Power Board

AC input

EMI filter

Bridge
Rectifier
and Filter

Transformer

Rectifier
diodes

Start Circuit: R927R928R929

CN903

PWM
Control IC

Feedback

Circuit

12V

24V

Lamp

Output

Circuit

Feedback
Circuit

Transformer

Over
Voltage

MOSFET

PWM
Control IC

ON/OFF
Control

DIM

ON/OFF

DIM

16

22" LCD Color Monitor AOC 2210S

6. Schematic

6.1 Main Board

715G2186-1

+5V

C701

0.1uF

+12V

C706

0.1uF

on_Panel4

SOT-223

U701

3 2

VI VO

1

+12V

C707

+

NC

GND

NC

C709

0.1uF

R716
NC

C703
NC

+5V

L702

120 OHM

1 2

C710

+

100uF/25V

+3V3

R717
10K 1/10W

R725 4.7K 1/10W

GND
GND

GND

GND

C704

+

NC

+5V

3,4

1
3
5
7
9

11

CONN

10K 1/10W

C718

NC

+3V3

CN701

+5V

R714

2
4
6
8
10
12

Q706
NC

+5V

+5V3,4

D704
SR24

C713

0.1uF

Reservation schematic­for blacklight off have
panel on solution.

BL_ADJ
+12V

GND

GND

R713 N C

R709 15K 1/10W

C711

+3V3

R715
NC

0.1uF

R723

10K 1/10W

Q705

PMBS3906

TO-263

U702

3

VIN

1

ADJ

AIC1084-33PM

+5V

R708

10K 1/10W

C715

0.022uF

VOUT

C722

+

22uF/50V

R710 NC

Q703
PMBS3904

C719

0.1uF

C717

100uF/25V

2

R705

4.7K 1/10W

C708
NC

VLCD

Q704
AO3401

0 1/10W

+

C712

+

100uF/25V

R712

4.7K 1/10W

VLCD 5

+5V

R721

10K 1/10W

VCC3.3

C714

0.1uF

+5V

+3V3

R727

R702

51 1/10W

VCC1.8

+

R703

2K 1/10W

VCC3. 3 4

VCC3. 3 4

R701
1K 1/10W

Q701
PMBS3904

+5V

R711

10K 1/10W

R722

NC

Tit le

D702

LL4148

R706 NC

R707

4.7K 1/ 10W

R704
100 1/10W

4.7uF/ 50V

D701

GS1D
Q702
PZT2907A

VCC3.3

Adj_BACKLIGH T 4

on_BACKLIGH T 4

C702

POWER

Size Document Number Rev

Custom

Date: Sheet

715G2186-1

25Thursday , Oc tober 12, 2006

VCTRL 4

VCC1. 8 4

of

B

17