AOC e2066Sn Schematic

20" LCD Color Monitor AOC e2066Sn

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

4.Input/Output Specification............……………............8

4.1.Input Signal Connector............………….................8

4.2.Factory Preset Display Modes…….........................9

4.3.Panel Specification.....………...…………................9

5.Block Diagram…….....................………….................11

5.1.Main Board…….…………...………………....….......11

5.2.Power Board……………..……………...….......12

6.Schematic……………........................................13

6.1.Main Board………...........................................13

6.2.Power Board...…….........................................17

6.3.Key Board...……............................................19

7.PCB Layout..………….......................................20

7.1.Main Board………...........................................20

7.2.Power Board…...............................................22

7.3.Key Board…………….....................................25

8.Maintainability………........................................26

8.1.Equipments and Tools Requirement...............26

8.2.Trouble Shooting…………..............................27

9.White-Balance, Luminance Adjustment.............31

10.Monitor Exploded View………..…….…............33

11.BOM List…………………………………............34

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

Service

Horizontal Frequency

30-83 KHz

Table of Contents

Description Page Description Page

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.

Version

Release Date

Revision History

TPV Model Name

A00

Aug.-10-2012

Initial release

TAC2R93BDBA1NNE

TAC2R93BDBA3NNE

TACAR93BDBA1NNE

TACAR93BDBA3NNE

TACMR93BDBA1NNE

TACMR93BDBA3NNE

TACAR93BDBA7NNE

TACMR93BDBA7NNE

TAC2R93BDBA7NNE

Revision List

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.)

1. Monitor Specifications

AC-IN 100V-240V

Monitor Block Diagram

Flat Panel and backlight

Main Board

RS232 Connector For white balance adjustment in factory mode

Video signal, DDC

Key Board

Host Computer

Power Board

LED Drive.

2. LCD Monitor Description

The LCD monitor will contain a main board, a power board, a key board which house the flat panel control logic, brightness control logic and DDC. The power part will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage.

3. Operating Instructions

3.1 General Instructions

This monitor only has one external control function button; press the Power/Auto Configuration button to turn the monitor on or off. If you need to adjust other functions, please visit the official AOC website (www.aoc.com)to download and install AOC’s exclusive i-Menu application software, and then perform related function adjustments to get the screen you require.

• Connect the power cord properly.

• Connect the signal cable onto the PC’s graphics card.

• Push the button to start the monitor, and the power indicator will light up..

3.2 Control Buttons

1.Power/ Auto Configuration

• Power/ Auto Configuration:

• When Power on, press Power/ Auto Configuration button to do auto configure .

• When Power off, press Power/ Auto Configuration button to turn on the monitor .

• When Power on, press Power/ Auto Configuration button continuously about 2 seconds to turn off the monitor .

• LED Indicator: Green—Full Power Mode. Flickering Green—Active-off Mode.

NOTE：

Power/ Auto Configuration

• Do not place the monitor close to heat sources such as heaters, ventilation ducts or places exposed to direct

sunlight.Do not place it at dusty places or places that make the machine shake or impact either.

• Keep the original package box and packing materials; if you need to transport your monitor again, they will come in handy.

• For maximum protection, please pack the monitor the way it was packed when shipped out of the factory.

1.Power

2.Analog (DB-15 VGA cable)

To protect equipment, always turn off the PC and LCD monitor before connecting. 1 Connect the power cable to the AC port on the back of the monitor. 2 Connect one end of the 15-pin D-Sub cable to the back of the monitor and connect the other end to the computer’s D-Sub port. 3 Turn on your monitor and computer

4. Input/Output Specification

4.1 Input Signal Connector

Pin Assignments

15-Pin Side of the Signal Cable

4.2 Factory Preset Display Modes

4.3 Panel Specification

4.3.1 General Features

TPM200O1-FGEL02 C1A is a 20” wide TFT Liquid Crystal Display module with LED Backlight Unit and 30 pins 2ch-LVDS interface. This module supports 1600(H) x 900(V) HD+ Resolution and can display 16.7M colors. The converter module for Backlight is not built in.

4.3.2 Display Characteristics

4.3.3 Electrical Characteristics

Vcc = 5.0 V, Ta = 25 ± 2.ºC, Frame rate=75Hz.Clock frequency = 95MHz

4.3.4 Optical Characteristics

VDD = 5.0V, Frame rate = 60Hz, Clock = 78MHz, IBL = 7.5mA, Ta =25±2 ℃

04.Output

PPWR_ON# L/T_SCL L/T_SDA

CMVCC

PB[0..9]

CMVCC1

RTD2270CLW-CG SCHEMATIC

CMVCC1

LVDS OUTPUTXGA/SXGA

OEM MODEL Size

Rev

Date

Sheet of

TPV MODEL PCB NAME

称爹

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

Key Component

絬隔瓜絪腹

AOC 66S ID(1A) - 18.5" only A

AOC 66S ID(1A) - 18.5" only

3 7Wednesday , January 11, 2012

715G4488-M0A-001-0040

<称爹>

01.Top

715G4488-M0A-001-0040_120106

02.Input

DSUB_R+ DSUB_G+

DSUB_B+

DSUB_V

DSUB_RDSUB_G-

DSUB_B-

DET_CABLE

DSUB_H

DSUB_SOG

DDC1_SDA

DDC1_SCL

CMVCC1

EDID_CTRL

05.Power

on_BACKLIGHT

Adj_BACKLIGHT

CMVCC

VCC3.3

Mute

Volume#

PANEL_ID#

CMVCC1

03.Scalar

DSUB_R+ DSUB_G+ DSUB_SOG

DSUB_B+

DSUB_RDSUB_G-

DSUB_BDSUB_H DSUB_V

Adj_BACKLIGHT

VCC3.3

PB[0..9]

DDC1_SDA DDC1_SCL DET_CABLE

on_BACKLIGHT

PPWR_ON#

PANEL_ID#

Volume#

Mute

CMVCC1

EDID_CTRL

L/T_SCL L/T_SDA

VCC3.3

CMVCC

VCC3.3

PB[0..9]

CMVCC1

5. Block Diagram

5.1 Main Board

715G4488M02000004C

EMI filter

Start Resistor

(R919,R920,R921,R922)

PWM Control

(IC901)

Transformer

AC input

15V

Bridge Rectifier and Filter

Feedback

Circuit

Rectifier diodes

Photo coupler

(IC902)

D801

15V

MOSFET

(Q801)

ON/OFF

DIM

L801

LED

(CN804)

PWM Control

OZ9998BGN

(U801)

Regulator

(IC903)

5.2 Power Board

VGA_PLUG

EDID_CTRL

C104 5PF 50V

C108 5PF 50V

C111 5PF 50V

CMVCC1 5

R109

1K 1/16W 5%

DDC1_SCL5

C435 1N50V

D403 LBAV70LT1G

U103

AZC398-04S

I/O1

GND

I/O23I/O3

I/O4

U102

AZC398-04S

I/O1

GND

I/O23I/O3

I/O4

DSUB_SCL

056G 662504 эΘ2nd source

DSUB_SDA

R472

4K7 1/16W 5%

R473

4K7 1/16W 5%

VGA_R+ VGA_B+

VGA_G+

V_Sync

FB103

19R 0.5A

1 2

C107

47nF 16V

C103 22PF 50V

R111

100R 1/16W 5%

R104

100R 1/16W 5%

FB102

19R 0.5A

1 2

C105

47nF 16V

FB101

19R 0.5A

1 2

R101 0R05 1/10W R102 100R 1/16W 5%

R117

100R 1/16W 5%

C113

47nF 16V

C110

47nF 16V

C102 22PF 50V

R106 2K2 1/16W 5%

R112 75 OHM +-5% 1/16W

R107 75 OHM +-5% 1/16W

C109

47nF 16V

R105

2K2 1/16W 5%

R115

100R 1/16W 5%

R108

100R 1/16W 5%

R103 100R 1/16W 5%

C101

47nF 16V

R116 75 OHM +-5% 1/16W

R114

100R 1/16W 5%

GND POWER

R118 100K 1/16W 5%

DSUB_5V

DGND

H_Sy nc

DSUB_SDA

DDC1_SDA5

DSUB_H 5 DSUB_V 5

DET_CABLE 5

DSUB_R- 5

DSUB_R+ 5

DSUB_G- 5

ミ

ΑCONN

DSUB_G+ 5

DSUB_SOG 5

DSUB_B- 5

DSUB_B+ 5

U405

AT24C02C-SSHM-T

GND4SDA

SCL

VCC

DDC1_SCL

DSUB_SCL

VGA_PLUG

DDC1_SDA

OEM MODEL Size

Rev

Date

Sheet of

TPV MODEL PCB NAME

称爹

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

Key Component

絬隔瓜絪腹

AOC 66S ID(1A) - 18.5" only A

AOC 66S ID(1A) - 18.5" only

4 7Wednesday , January 11, 2012

715G4488-M0A-001-0040

<称爹>

02.Input

715G4488-M0A-001-0040_120106

R474

22K 1/16W 5%

CN101

DB15

17 16

C434 220N16V

CMVCC1

R475 47R 1/16W 5%

V_Sync

DSUB_5V

VGA_R-

R476 47R 1/16W 5%

VGA_R+

VGA_G-

VGA_B+

DSUB_5V

CMVCC1

DSUB_SCL VGA_PLUG

VGA_G-

C106

22NF25V

VGA_G+DSUB_SDA

VGA_R-

ZD103

RLZ5.6B

1 2

VGA_B-

VGA_G+

VGA_B+H_Sy nc

VGA_R+

6. Schematic

6.1 Main Board

715G4488M02000004C

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