AOC F19s Schematic

18.5" LCD Monitor AOC F19s

Service

Horizontal Frequency

30- 80kHz

Table of Contents

Description Page Description Page

Table of Contents…………………..…………………..…...1

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

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

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

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

3.Operation Instruction.…………...................……...........7

3.1.General Instructions....................................…...........7

3.2.Control Buttons and Connections...............................7

3.3.OSD Settings….........................................................8

4.Input/Output Specification...............……………….......11

4.1.Input Signal Connector...............………..................11

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

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

5.Block Diagram….........................................................16

5.1.Main Board…..….............................................16

5.2.Power Board…………..…………………………......17

6.Schematic…………..….........................................18

6.1.Main Board..…….…...........................................18

6.2.Power Board..……….........................................22

7.PCB Layout..………..............................................24

7.1.Main Board………..…........................................24

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. FOS Testing………………………………………34

10.Firmware and DDC Instruction……………….….38

11.White-Balance,Luminance Adjustment…............49

12.Monitor Exploded View……................................51

13.BOM List…………..……………………….............52

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

1

Revision List

Version Release Date Revision History TPV Model Name

T8AAR5NKX8A1NNE

A00 Nov.-10-2010 Initial release

T8AAR5NEX8A1NNE

T8AAR5NPX8A1NNE

Add new models

T8AAR5NQX8A1NNE

A01 Jan.-12-2011

Add second Panel

(CPT CLAA185WA03)

A02 Feb.-22-2011 Add new models

T8ACR5NCX8ACNNE

T8ACR5NEX8A1NNE

T8ACR5NKX8A1NNE

T8ACR5NPX8A1NNE

T8ACR5NQX8A1NNE

2

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

1. Monitor Specifications

Model number F19s

Driving system TFT Color LCD

Viewable Image Size 470mm diagonal

LCD Panel

Resolution

Physical

Characteristics

Environmental

Pixel pitch 0.3mm(H) x 0.3mm(V)

Video R, G, B Analog lnterface

Separate Sync. H/V TTL

Display Color 16.7M Colors

Dot Clock 85.5 MHz

Horizontal scan range 30 kHz - 80 kHz

Horizontal scan Size(Maximum) 409.8mm

Vertical scan range 55 Hz - 75 Hz

Vertical scan Size(Maximum) 230.4mm

Optimal preset resolution 1360 x 768 (60 Hz) or 1366 x 768 (60 Hz)

Highest preset resolution 1366 x 768 (60 Hz)

Plug & Play VESA DDC2B/CI

Input Connector D-Sub 15pin

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

Power Source 100-240VAC, 50/60Hz

Power Consumption

Connector Type 15-pin Mini D-Sub

Signal Cable Type Detachable

Dimensions & Weight:

Height (with base)

Width

Depth

Weight (monitor only)

Weight (with packaging)

Temperature:

Operating 0° to 40°

Non-Operating -20°to 60°

Humidity:

Operating 10% to 85% (non-condensing)

Non-Operating 5% to 80% (non-condensing)

Altitude:

Operating 0~ 3000m (0~ 10000 ft )

Non-Operating 0~ 5000m (0~ 15000 ft )

Active < 25 W Standby < 1 W

334.3 mm

445.8 mm

130.1mm

3.7 kg

4.8 kg

4

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 Driver

(Include: adapter, inverter)

Power board

AC-IN 100V-240V

Main Board

Key board

Flat Panel and CCFL backlight

HOST Computer

RS232 Connector For white balance adjustment in factory mode

Video signal DDC

5

View and Dimension

6

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.

3.2 Control Buttons and Connections

1 Eco mode(DCR) / Up 2 Auto / Down 3 Contrast / Left 4 4:3 or wide / Right 5 Menu / Power

1. Power

2. Analog

Turn off your computer before performing the procedure below.

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.

If your monitor displays an image, installation is complete. If it does not display an image, see Troubleshooting

7

.

3.3 OSD Settings

• Press the Menu (Power) button to activate the OSD window. Press left, right, up, down button to navigate through the functions. Once the desired function is highlighted, press the Menu (Power) button to activate sub-menu .

• In sub-menu, Press up, down button to navigate through the functions. Once the desired function is highlighted, press superior menu.

• If you want to adjust any other function, repeat steps 1-2.

• To exit OSD windows, select “exit” icon on main OSD, then press the Menu (Power) button .

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

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

• Contrast adjustment hot key : When there is no OSD , press Contrast ( press or to adjust Contrast.

• 4:3 or wide image ratio hot key: When there is no OSD, press ratio. (If the product screen size is 4:3 or input signal resolution is wide format, the hot key is disalbe to adjust.)

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

• Press the Power button continuously about 2 second to turn off the monitor.

, button to button to change the setting. Press Menu (Power) button to return to

) to active Contrast adjustment bar,

continuously to change 4:3 or wide image

8

Function Control Illustration

Luminance Adjust Range Description

Brightness 0-100 Backlight Adjustment

Contrast 0-100 Contrast from Digital-register.

Eco mode

Gamma1 Adjust to Gamma1

Gamma

Gamma2 Adjust to Gamma 2

Gamma3 Adjust to Gamma 3

DCR

Image Setup

Clock 0-100

Phase 0-100

H.Position 0-100

V.Position 0-100

Color Temp.

Warm

Normal

Cool

sRGB

6500K

7300K

9300K

Standard

Text

Internet

Game

Movie

Sports

Off

On

Standard Mode

Text Mode

Internet Mode

Game Mode

Movie Mode

Sports Mode

Disable dynamic contrast ratio

Enable dynamic contrast ratio

Adjust picture Clock to reduce Vertical-Line noise.

Adjust Picture Phase to reduce Horizontal-Line noise

Adjust the horizontal position of the picture.

Adjust the verticalposition of the picture.

Recall Warm Color Temperature from EEPROM.

Recall Normal Color Temperature from EEPROM.

Recall Cool Color Temperature from EEPROM.

Recall SRGB Color Temperature from EEPROM.

9

A

Red Red Gain from Digital-register

User

Green Green Gain Digital-register.

Blue Blue Gain from Digital-register

Color Boost

Full Enhance on or off

Nature Skin on or off

Green Field on or off

Sky-blue on or off Disable or Enable Sky-blue Mode

AutoDetect on or off

Disable or Enable Full Enhance Mode

Disable or Enable Nature Skin Mode

Disable or Enable Green Field Mode

Disable or Enable AutoDetect Mode

Demo on or off Disable or Enable Demo

Picture Boost

Frame Size 14-100 Adjust Frame Size

Brightness 0-100 Adjust Frame Brightness

Contrast 0-100 Adjust Frame Contrast

H. position 0-100 Adjust Frame horizontal Position

V.position 0-100 Adjust Frame vertical Position Bright Frame on or off Disable or Enable Bright Frame

OSD Setup

H.Position 0-100

V.Position 0-100

Timeout 5-120 Adjust the OSD Timeout

Adjust the horizontal position of OSD

Adjust the vertical position of OSD

Transparence 0-100 Adjust the transparence of OSD Language Select the OSD language

Extra

Input Select Analog

Auto Config yes or no

Image Ratio wide or 4:3

Select Analog Sigal Source as Input

uto adjust the picture to default

Select wide or 4:3 format for display

DDC-CI yes or no Turn ON/OFF DDC-CI Support

Information

Show the information of the main image and sub-image source

Reset

Reset yes or no Reset the menu to default

Exit

Exit Exit the main OSD

LED Indicators

Status LED Color

Full Power Mode Green or Blue

Active-off Mode Orange or red

10

4. Input/Output Specification

4.1 Input Signal Connector

Pin Number 15-Pin Side of the Signal Cable

1 Video-Red

2 Video-Green

3 Video-Blue

4 N.C.

5 Detect Cable

6 GND-R

7 GND-G

8 GND-B

9 +5V

10 Ground

11 N.C.

12 DDC-Serial data

13 H-sync

14 V-sync

15 DDC-Serial clock

4.2 Factory Preset Display Modes

HORIZONTAL

STAND RESOLUTION

FREQUENCY(kHZ)

VGA 640 x 480 @60Hz 31.469 59.940 VGA 640 x 480 @72Hz 37.861 72.809 VGA 640 x 480 @75Hz 37.500 75.000

Dos-mode 720 x 400 @70Hz 31.469 70.087

SVGA 800 x 600 @56Hz 35.156 56.250 SVGA 800 x 600 @60Hz 37.879 60.317 SVGA 800 x 600 @72Hz 48.077 72.188 SVGA 800 x 600 @75Hz 46.875 75.000

Mac-mode 832 x 624 @75Hz 49.725 74.500

XGA 1024 x 768 @60Hz 48.363 60.004 XGA 1024 x 768 @70Hz 56.476 70.069 XGA 1024 x 768 @72Hz 57.500 72.074 XGA 1024 x 768 @75Hz 60.023 75.029 XGA 1024 x 768 @75Hz 47.712 74.927

WSXGA 1366 x 768 @60Hz 47.765 59.85

VERTICAL

FREQUENCY(Hz)

11

4.3 Panel Specification

4.3.1 General Features

AUO M185XW01

CPT CLAA185WA03

CLAA185WA03_V2 is 18.51” color TFT-LCD (Thin Film Transistor Liquid Crystal Display) module composed of LCD panel, driver ICs, control circuit and backlight. By applying 6bit+Hi-FRC digital data,1366*768, 16.7M-color images are displayed on the 18.51” diagonal screen. Input power voltage is 5.0V for LCD driving. Inverter for backlight is not included in this module. General specification are summarized in the following table:

4.3.2 GENERAL SPECIFICATIONS

AUO M185XW01

(Ta= 25±2℃)

CPT CLAA185WA03

12

4.3.3 Electrical Characteristics

1. TFT LCD Module AUO M185XW01

(Ta= 25±2℃)

CPT CLAA185WA03

Ta= 25±2℃，VCC=5.0V, Fh=47.28KHz, Fv=60Hz, Fclk=67.1MHz.

13

2 .BackLight Unit AUO M185XW01

(Ta= 25±2℃)

CPT CLAA185WA03

14

4.3.4 Optical Characteristics

AUO M185XW01

(Ta= 25±2℃)

CPT CLAA185WA03

Ta=25℃，VCC=5.0V

15

5. Block Diagram

5.1 Main Board

715G3244 2 2

TSUM1PFR SCHEMATIC

CMVCC1

CMVCC

XGA/SXGA

02.Input

VCC1.8

VCC3.3

05.Power

CMVCC1

VCC1.8

VCC3.3

CMVCC

CMVCC1

DSUB_R+ DSUB_RDSUB_G+ DSUB_G-

DSUB_SOG

DSUB_B+ DSUB_B-

DSUB_H DSUB_V

DDC1_SDA

DDC1_SCL

DET_CABLE

EDID _CTRL

on_BACKLI GHT

Mut e

Volume#

PANEL_I D#

Adj_BACKLI GHT

VCTRL

DSUB_R+ DSUB_RDSUB_G+ DSUB_GDSUB_SOG DSUB_B+ DSUB_BDSUB_H DSUB_V DDC1_SDA DDC1_SCL DET_CABLE

EDID _CTRL

on_BACKLI GHT

Mut e Volume# PANEL_ID#

Adj_BACKLIGHT

VCTRL

03.Scalar

LVDS OUTPUT

VCC1.8

VCC3.3

CMVCC1

PA[0. .1]

PA[4. .9]

PB[0. .9]

PPWR_O N#

VCC3. 3

PA[0.. 1]

PA[4.. 9]

PB[0.. 9]

CMVCC1

PA[0..1]

PA[4..9]

PB[0..9]

PPWR_ ON#

04.Output

CMVCC

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

絬隔瓜絪腹

Key Component

G3244-2-2-X-8-100426

01.Top

Date

OEM MO DE L Size

TPV MO D EL

PCB NAME

A1981Wx A

T99SRD* TVN N F

G3244-2-2

Sheet

of

37Thursday , May 06, 2010

Rev

称爹

>

<

16

t

5.2 Power Board

715G2852 2 11

AC input

EMI filter

B/L

PWM Control

Output

Circui

Feedback Circui

Bridge Rectifier and Filter

Start Resistor

(R904,R932)

LD7575A

(IC901)

Transformer

(T801)

Transformer

(T901)

Power Switch

(Q901)

Photo coupler

(IC902)

MOSFET

PWM Control

TL494IDR

(Q802)

(IC801)

Rectifier diodes

12V

5V

Feedback

Circuit

Regulator

(IC903)

12V

ON/OFF DIM

17

6. Schematic

6.1 Main Board

715G3244 2 2

GND POWER

DSUB_SCL

DSUB_SDA

DGND

H_Sync V_Sy nc

15

14

13

12

11

R101 0R05 1/10W 5%

R105

2K2 1/16W 5%

CN101

DB15

10

VGA_PLUG

5 9

DSUB_5V

4 8 3 7 2 6 1

17 16

VGA_G+

VGA_R+

1 2 3 4

DSUB_SDA

DSUB_SCL

R106 2K2 1/16W 5%

VGA_BVGA_B+ VGA_GVGA_G+ VGA_RVGA_R+

U103 AZC199-04S

I/O1

I/O4

GND

VDD

I/O2 I/O3

U102 AZC199-04S

I/O1

I/O4

GND

VDD

I/O2 I/O3

ZD103

RLZ5.6B

6 5

H_Sync ESD_5V V_Sy nc

候綼　

VGA_PLUG ESD_5V VGA_B+

候綼　

C102

22pF

U103

U102

R102 100R 1/16W 5% R103 100R 1/16W 5%

C103

22pF

DSUB_5V

C114

NC

C115

NC

DDC1_SDA5 DDC1_SCL5

DSUB_SCL DSUB_SDA

DDC1_SDA DDC1_SCL

DSUB_H 5 DSUB_V 5

R475 47R 1/16W 5% R476 47R 1/16W 5%

VGA_B+

VGA_B-

VGA_G+

VGA_G-

VGA_R+

VGA_R-

R472

4K7 1/16W 5%

CMVCC1

ESD_5V

R473

4K7 1/16W 5%

FB102

1 2

BEAD

FB103

1 2

BEAD

FB101

1 2

BEAD

DSUB_5V

2

3

R474

4K7 1/16W 5%

1

D403 BAV70

8 7 6

VCC WP SCL

R107

75R 1/16W 5%

R112

75R 1/16W 5%

R116

75R 1/16W 5%

U405

1

A0

2

A1

3

A2

45

GNDSDA

AT24C02BN- SH-T

R104

100R 1/16W 5%

C104

5pF/50V

R108

100R 1/16W 5%

R109

390 OHM 1/16W

R111

100R 1/16W 5%

C108

5pF/50V

R114

100R 1/16W 5%

R115

100R 1/16W 5%

C111

5pF/50V

R117

100R 1/16W 5%

C434

0.22uF16V

Q407 LMBT3904LT1G

VGA_PLUG

C101

0.047uF

C105

0.047uF

C106

C107

0.047uF

C109

0.047uF

C110

0.047uF

C113

0.047uF

CMVCC1

1000pF

R118 10K 1/16W 5%

R122

NC

DSUB_B+ 5

DSUB_B- 5

DSUB_SOG 5

DSUB_G+ 5

DSUB_G- 5

DSUB_R+ 5

DSUB_R- 5

CMVCC1 5,6,7

DET_CABLE 5

EDID_CTRL 5

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

Date

G3244-2-2-X-8-100426

02.Input

絬隔瓜絪腹

Key Component

OEM MOD EL Size

A1981Wx

TPV MO DEL

T99SRD*TVNN F

G3244-2-2

PCB NAME

Sheet

47Thursday, May 06, 2010

of

Rev

称爹

B

<

称爹

>

18