AOC 519Sw User Manual

15" LCD Color Monitor AOC 519Sw

Table Of Contents…………………………………………...1

Revision List………………………………………………....2

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

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

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

3. Operation Instructions....................................…...........6

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

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

3.3 Adjusting the Picture...........................…..............7

4. Input/Output Specification............……………............10

4.1. Input Signal Connector............………….................10

4.2. Factory Preset Display Modes......…..................11

4.3. Panel Specification.....………………..................12

5. Block Diagram….........................................................15

5.1 Software Flow Chart………………………….……….15

5.2.Electrical Block Diagram…………………….......17

6. Schematic……………..............................................19

6.1 Main Board....……….............................................19

6.2 Power Board………………………………………....24

6.3 Key Board…………………...….……………………26

7. PCB Layout..………….............................................27

7.1. Main Board………................................................27

7.2. Power Board….....................................................29

7.3. Key Board….........................................................30

8. Maintainability………...............................................31

8.1.Equipments and Tools Requirement......................31

8.2.Trouble Shooting………........................................32

9. White-Balance, Luminance adjustment………..…...38

10. Monitor Exploded View…………………….…........40

11. BOM List…............................................................41

12.Different Parts List……………………………………60

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

Service

Horizontal Frequency

36.5-75.75 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.

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15" LCD Color Monitor AOC 519Sw

Version

Date

Revision History

TPV Model Name

A00

Mar.-10-2008

Initial release, CKD model

T57ARDNQWJA17N

T57ARDNQWJA27N

A01

Mar.-16-2008

Add new model’s BOM

T57ARDNPWJA5NN

Revision List

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15" LCD Color Monitor AOC 519Sw

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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15" LCD Color Monitor AOC 519Sw

4

LCD Panel

Driving system

TFT Color LCD

Viewable Image Size

381mm diagonal

Pixel pitch

0.2595mm(H) x 0.2595mm(V)

Dot Clock

74.5 MHz

Display Colors

16.7M Colors

Input

Video

R, G, B Analog Interface

Separate Sync.

H/V TTL

H-Frequency

36.5 – 75.75 kHz

Horizontal scan Size(Maximum)

332.16mm V-Frequency

50 - 75 Hz

Vertical scan Size(Maximum)

186.84mm Optimal preset resolution

1280 x 720 (60 Hz)

Highest preset resolution

1280 x 720 (75 Hz)

Plug & Play

VESA DDC2B/CI

Power Consumption Active < 23 W

Standby < 2 W

Input Connector

15-pin D-Sub

Input Video Signal

Analog: 0. 7Vp-p(standard), 75 OHM, Positive,

Power Source

100~240V AC,50/60Hz

Dimension Height (with base)

313 mm

Width

373 mm

Depth

190 mm

Weight (monitor only)

2.7 kg

Weight (with packaging)

3.7 kg

Environmental

Temperature: Operating 0° to 40° Humidity: Operating 10% to 85% (non-condensing) Altitude: Operating 0~ 3000m (0~ 10000 ft )

1. Monitor Specification

15" LCD Color Monitor AOC 519Sw

Video signal, DDC

Power Board

(Include adapter and inverter)

Flat Panel and CCFL backlight

Main Board

RS232 Connector For white balance adjustment in factory mode

HOST Computer

CCFT Drive.

AC-IN

100V~240V

Monitor Block Diagram

Key board

2. LCD Monitor Description

The LCD Monitor will contain main board, power board, 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.

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15" LCD Color Monitor AOC 519Sw

3. Operation Instructions

3.1 General Instructions

Press the power button to turn the monitor on or off. The 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.

-

3.2 Control Buttons

1 Auto / Exit 2 Eco mode / - 3 DCR / + 4 Menu 5 Power

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15" LCD Color Monitor AOC 519Sw

3.3 Adjusting the Picture

OSD Settings

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 sub-menu . Once the desired function is highlighted, press MENU-button to activate it.

3) Press- or +to change the settings of the selected function. Press - or + to select another function in sub-menu . Press AUTO to exit . If you want to adjust any other function, repeat steps 2-3.

4) 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.

5) Eco Mode hot key : Press the Eco key continuously to select the Eco mode of brightness when there is no OSD ( Eco mode hot key may not be available in all models).

6) Volume adjustment hot key : When there is no OSD , press Volume (+) to active volume adjustment bar, press or + to adjust volume ( Only for the models with speakers).

7)DCR hot key (►) : Only to press DCR key continuously is able to active or disable DCR function when there is no OSD.

8)Auto configure hot key: When the OSD is closed, press Auto button will be auto configure hot key function .

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15" LCD Color Monitor AOC 519Sw

OSD functions

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15" LCD Color Monitor AOC 519Sw

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15" LCD Color Monitor AOC 519Sw

4. Input/Output Specification

4.1 Input Signal Connector

D-Sub mini 15pin Connector

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15" LCD Color Monitor AOC 519Sw

Stand

Resolution

Horizontal

Frequency(Khz)

Vertical

Frequency(Hz)

VGA

640×480 @60Hz

31.469

59.940

VGA

640×480 @72Hz

37.861

72.809

VGA

640×480 @75Hz

37.500

75.000

SVGA

800×600 @56Hz

35.156

56.250

SVGA

800×600 @60Hz

37.879

60.317

SVGA

800×600 @72Hz

48.077

72.188

SVGA

800×600 @75Hz

46.875

75.000

wXGA

1280×720 @60Hz

60.00

44.697

wXGA

1280×720 @75Hz

59.856

44.772

DOS

720×400 @70Hz

31.469

70.087

DOS

640×400 @70Hz

31.469

70.087

VGA

640×480 @67Hz

35.000

66.667

SVGA

832×624 @75Hz

49.725

74.551

4.2 Factory Preset Display Modes

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15" LCD Color Monitor AOC 519Sw

4.3. Panel Specification

4.3.1 General Feature

M150EW01 V0 is a Color Active Matrix Liquid Crystal Display composed of a TFT LCD panel, a driver circuit, and backlight system. The screen format is intended to support the WXGA (1280(H) x 720(V)) screen and 16.7M colors. All input signals are LVDS interface compatible. Inverter of backlight is not included.

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15" LCD Color Monitor AOC 519Sw

4.3.2 Optical Characteristics

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15" LCD Color Monitor AOC 519Sw

4.3.3 Electrical Characteristics

TFT Module

Back-light

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15" LCD Color Monitor AOC 519Sw

1

2

N

Y

5

Y

N 10

Y

N 12

Y

N

7

Y

N

6

4

3

8

9

14

11

13

Y

N 15

Y

N

16

17

19

Y N

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5. Block Diagram

5.1 Software Flow Chart

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15" LCD Color Monitor AOC 519Sw

1) MCU initialize.

2) Is the EEprom blank?

3) Program the EEprom by default values.

4) Get the PWM value of brightness from EEprom.

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 EEprom. 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 they’re 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

disappears.

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?

REMARK:

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15" LCD Color Monitor AOC 519Sw

Panel Interface

(CN601)

Crystal

24MHZ

(X401)

MCU RTD2120L

(U401)

Scalar RTD2025L

(Include ADC, OSD)

(U501)

D-Sub Connector

(CN301)

H sync V sync

RGB

EEPROM

M24C16

(U403)

5.2 Electrical Block Diagram

Main Board

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15" LCD Color Monitor AOC 519Sw

EMI filter

Bridge Rectifier and Filter

Start Circuit

R904, R932, R933

PWM

Control IC

Transformer

Feedback circuit

Rectifier Diodes

AC input

5V

12V

ON/OFF

Control

PWM

Control IC

Feedback Circuit

OSC and Output

DC

Convert

MOSFET

Q802

Over Voltage protect

Lamp

ON/OFF

DIM CN902

TO INVERTER

Power Board

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