Dell E1909Wc Schematic

19" LCD Color Monitor Dell E1909Wc

Service

Horizontal Frequency

30 kHz to 83 kHz

Table Of Contents

Description Page Description Page

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

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

ECN History.….......................………..................……......3

Important Safety Notice.….……….…..................……......4

1.Monitor Specifications.....…........................………........5

2.LCD Monitor Description…………………………….......6

3.Operation Instructions……………...............……...........7

3.1.Control Buttons……………...............……..............7

3.2 Adjusting the Picture...........…………….........…….9

4.Input/Output Specification.............……………........…17

4.1.Input Signal Connector............………….................17

4.2.Factory Preset Display Modes...…..…......................18

4.3.Power Supply Requirements..........……...................18

4.4.Panel Specification…….....……………..................19

4.5 Incoming inspection standard...................................21

5. Block Diagram………………………………………..….25

5.1.Software Flow Chart………..……………....….......25

5.2.Electrical Block Diagram…………….…..…..….......27

6.Mechanical Instruction………………..……..…..….......29

7.Schematic Diagram………..................................….....34

7.1Main Board......………......................................34

7.2 Power Board……..…….……....................................38

7.3 Key Board………………………...…………………….40

8.PCB Layout..……...………….......................................41

8.1.Main Board……………..…........................................41

8.2.Power Board……………........................................43

8.3.Key Board………………….....................................44

9.Maintainability………….......................................45

9.1.Equipments and Tools Requirement..…….…...........45

9.2.Trouble Shooting………………….............................45

10.White-Balance, Luminance adjustment...……….....51

11.ISP Instruction…………….…….................................53

12.Monitor Exploded View…………….…………............57

13.BOM List………….....................................................59

14.Different Parts List………………...……………………71

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.

19" LCD Color Monitor Dell E1909Wc

Revision List

Revision Release Date Revise history TPV model

T9RAMAHKX5DFHN

A00 Jun.-16-2008

A01 Aug.-12-2008 Add TPV Model in item 14

Initial Release

T9RMMAHKX5DFHN

T9RSMAHKX5DFHN

T9RSMAHKX5DFHC

T9RMMAHKX5DFHC

T9RAMAHKX5DFHC

19" LCD Color Monitor Dell E1909Wc

ECN History

ECN No. Change Description Service Deposition Cut-in date MSR

19" LCD Color Monitor Dell E1909Wc

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.)

19" LCD Color Monitor Dell E1909Wc

1. Monitor Specifications

Screen type Active matrix - TFT LCD

Panel Type

Size

LCD Panel

Pixel pitch

Viewable angle

Response time 8ms typical

Video R, G, B Analog Interface, DVI digital Interface

Separate Sync H/V TTL

Input

H-Frequency 30kHz – 83kHz

V-Frequency 56 - 75Hz

Dynamic contrast ratio 1000:1 (typical)

Luminance output 300 CD/m ²(typical)

M190PW01 V00A SZ AUO

19 inches (19-inch viewable image size)

0.283mm (H) x 0.283mm(V)

160° (vertical) typ, 160° (horizontal) typ

Max. Resolution

Plug & Play VESA DDC

EPA ENERGY

STAR

Input Connector

Dimensions (with stand)

Power Source

Video display capabilities (DVI playback) 480i/480p/576i/576p/720p/1080i/1080p (Support HDCP)

Environmental Considerations

ON Mode <75W

OFF Mode <1W

1440 x 900 at 75 Hz

15-pin D-subminiature, blue connector;

DVI-D, white connector

Height : 14.32 inches (363.74 mm)

Width: 17.45 inches (442.85 mm)

Depth：5.78 inches (146.86 mm)

100 to 240 VAC / 50 or 60 Hz + 3 Hz / 1.5A

Operating Temp: 5° to 35°C Operating Humidity: 10% to 80% Storage Temp.: -20° to 60°C

Weight with packaging: 13.54 lbs (6.14 kg)

Weight

Weight with stand assembly and cables: 10.27 lbs (4.66 kg)

Weight without stand assembly: 7.80 lbs (3.54 kg)

Weight of stand assembly: 2.23 lbs (1.01 kg)

19" LCD Color Monitor Dell E1909Wc

2. LCD Monitor Description

The LCD monitor will contain a main board, 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

Power board

Main Board

AC-IN

100-240V

Key board

Video signal, DDC

Host Computer

RS232 Connector

For white balance

adjustment in factory

mode

19" LCD Color Monitor Dell E1909Wc

3. Operation instructions

3.1 Control Buttons

Use the buttons on the front of the monitor to adjust the image settings.

Front panel Button Description

Brightness&Con

trast /Adjust UP

Automatic

Adjust /Adjust

Down

Use the MENU button to launch the on-screen display (OSD) and select the OSD

Menu.

Use this button to directly access the "Brightness/Contrast" menu or to increase the

values of the selected menu option.

Use Auto Adjust to activate automatic setup/adjustment or to decrease the values of

the selected menu option. The following dialog appears on a black screen as the

monitor self-adjusts to the current input:

Input Source

Select/Select

Auto Adjustment allows the monitor to self-adjust to the incoming video signal. After

using Auto Adjustment, you can further tune your monitor by using the Pixel Clock

(Coarse) and Phase (Fine) controls under Image Settings.

Use this button to select the input source or select an OSD menu option. Use the

Input source button to select one of the two different video signals that may be

connected to your monitor:

• VGA input

19" LCD Color Monitor Dell E1909Wc

• DVI-D input

< to image the for seconds 2 or 1 take may It source. input selected currently indicate

messages following see will you inputs through cycle>

Power

(with power light

indicator)

If either VGA or DVI-D input is selected and both VGA and DVI-D cables are not

connected, a floating dialog box as shown below appears.

Use the Power button to turn the monitor on and off.

The Blue LED indicates the monitor is on and fully functional. An amber LED

indicates DPMS power save mode.

19" LCD Color Monitor Dell E1909Wc

3.2 Adjusting the Picture

1.Push the MENU button to launch the OSD menu and display the main menu.

Main Menu for Analog (VGA) Input

Main Menu for Digital (DVI-D) Input

2.Push the and buttons to move between the setting options. As you move from one icon to another, the

option name is highlighted. See the following table for a complete list of all the options available for the monitor.

3.Push the

4.Push the

5.Push

make your changes

6.Press the Menu button once to return to the main menu to select another option or press the Menu button two or

three times to exit from the OSD menu.

The table below provides a list of all the OSD menu options and their functions.

button once to activate the highlighted option.

and buttons to select the desired parameter.

to enter the slide bar and then use the or button, according to the indicators on the menu, to

19" LCD Color Monitor Dell E1909Wc

Icon Menu and

Submenus

Brightness

& Contrast

Description

Use this menu to activate Brightness/Contrast adjustment.

Brightness

Contrast

Auto Adjust

Brightness adjusts the luminance of the backlight.

Push the

to decrease brightness (min 0 ~ max 100).

Adjust Brightness first, and then adjust Contrast only if further adjustment is

necessary.

Push the

decrease contrast (min 0 ~ max 100).

The Contrast function adjusts the degree of difference between darkness

and lightness on the monitor screen.

Even though your computer recognizes your monitor on startup, the Auto

Adjustment function optimizes the display settings for use with your particular

setup.

button to increase brightness and push the button

button to increase contrast and push the button to

Input Source

Use the INPUT SOURCE menu to select between different video signals that

may be connected to your monitor.

19" LCD Color Monitor Dell E1909Wc

VGA

DVI-D

Color

Settings

Select VGA input when you are using the analog (VGA) connector. Push

to select the VGA input source.

Select DVI-D input when you are using the Digital (DVI) connector. Push

to select the DVI input source.

Use the Color Settings to adjust the color setting mode and color

temperature.

There are different color setting sub-menus for VGA/DVI-D and Video input.

Input Color

Format

Mode

Selection

Choose the RGB option if monitor is connected to a PC or a DVD using a

VGA or DVI cable. Choose the YPbPr option if monitor is connected to a

DVD by a YPbPr to VGA or YPbPr to DVI cable or if the DVD color output

setting is not RGB.

You can choose Graphics or Video according to the input signal. Select

Graphics if connecting a PC to your monitor; for connecting DVD, STB or

VCR to your monitor, Video is recommended.

19" LCD Color Monitor Dell E1909Wc

Preset Modes

When you select Graphics, you can choose Standard, Multimedia, Game,

Warm, Cool, or Custom (R,G,B);

• If you view media application like photo, clip etc via PC, choose

"Multimedia" preset;

• If you play a game in PC, choose "Gaming" preset;

• If you prefer a lower color temperature (5700K), choose "Warm"

preset;

• If you prefer a higher color temperature, choose "Cool" preset;

• Custom (R, G, B) Preset offers a range of 6500K colors;

• Choose "Standard" to utilize the panel native color format;

• Select Warm preset for a reddish tint. This color setting is used for

color-intensive applications (photograph image editing, multimedia,

movies, etc.)

• Select Cool preset for a bluish tint. This color setting is used for text

based applications (spreadsheets, programming, text editors, etc.)

• Select Custom preset to increase or decrease each of the three

colors (R, G, B) independently, in single digit increments, from 0 to

100.

When you select Video, you can choose Movie, Game, Sports, or Nature

preset:

• For playing a movie, choose "Movie" preset;

• For playing a sport program, choose "Sports" preset;

• For playing a game, choose "Game" preset;

• For general picture or web or watch TV, choose Nature preset. You

can adjust the Hue(Tint)/Saturation based on your preference. If you

want to restore default color settings, choose Color Reset;

• Select Color Reset preset to restore default (factory) Color settings.

This setting is also the “sRGB” standard default color space.

19" LCD Color Monitor Dell E1909Wc

Hue

Saturation

Reset Color

This feature can shift color of video image to green or purple. This is used to

adjust the desired flesh tone color. Use

from '0' to '100' .

Push

This feature can adjust the color saturation of the video image. Use

Push

Reset your monitor color settings to the factory settings.

to increase the green shade of the video image

to decrease the purple shade of the video image

or to adjust the saturation from '0' to '100'.

to increase the monochrome appearance of the video image

to decrease the colorful appearance of the video image

or to adjust the hue

Settings

Display

Settings

Use the Display Settings to adjust image.

19" LCD Color Monitor Dell E1909Wc

Horizontal

Position

Vertical

Position

Sharpness

Pixel Clock

Phase

Use the

'0' (-). Maximum is '100' (+).

Use the

'0' (-). Maximum is '100' (+).

This feature can make the image look sharper or softer. Use

The Phase and Pixel Clock adjustments allow you to adjust your monitor to

your preference. These settings are accessed through the main OSD menu,

by selecting 'Image Settings'.

Use the

If satisfactory results are not obtained using the Phase adjustment, use the

or to adjust the sharpness from '0' to '100'.

or buttons to adjust image left and right. Minimum is

or buttons to adjust image up and down. Minimum is

or buttons to adjust for best image quality.

Pixel Clock (coarse) adjustment and then use Phase (fine), again.

Reset Display

Settings

Other

Settings

Select this option to restore default display settings.

Select this option to adjust the settings of the OSD, such as, the languages

of the OSD, the amount of time the menu remains on screen, and so on.

19" LCD Color Monitor Dell E1909Wc

Language

Menu Transp

arency

Menu Timer

Menu Lock

DDC/CI

Language option to set the OSD display to one of seven languages (English,

Espanol, Francais, Deutsch, Portugues,Simplified chinese or Japanese).

Select this option to change the menu transparency by pressing

or (Minimum: 0 ~ Maximum: 100).

OSD Hold Time: Sets the length of time the OSD will remain active after the

last time you pressed a button.

Use the

increments, from 5 to 60 seconds.

Controls user access to adjustments. When 'Lock' is selected, no user

adjustments are allowed. All buttons are locked except the menu

DDC/CI (Display Data Channel/Command Interface) allows your monitor

parameters (brightness, color balance etc) to be adjustable via software on

or buttons to adjust the slider in 5 second

button.

your PC. You can disable this feature by selecting "Disable".

Enable this feature for best user experience and optimum performance of

your monitor.

19" LCD Color Monitor Dell E1909Wc

LCD

Conditioning

Factory Reset

Helps reduce minor cases of image retention. Depending on the degree of

image retention, the program may take some time to run. You can enable

this feature by selecting "Enable".

Reset all OSD settings to the factory preset values.

19" LCD Color Monitor Dell E1909Wc

4. Input/Output Specification

4.1 Input Signal Connector

VGA Connector:

Pin No. Description Pin No. Description

1. Red Video 9.

2. Green Video 10. GND-sync

3. Blue Video 11. GND

4. GND 12. DDC data

5. Self-test 13. H-Sync

6. R-Ground 14. V-Sync

7. G-Ground 15. DDC clock

8. B-Ground

DVI Connector:

Computer 5V/3.3V

VGA Connector layout

Note: Pin 1 is at the top right.

Pin Signal Assignment Pin Signal Assignment Pin Signal Assignment

1 T.M.D.S. Data 2- 9

2 T.M.D.S. Data 2+ 10

TMDS Ground

4 Floating

5 Floating

6 DDC Clock

7 DDC Data

Floating

TMDS RX1- 17 TMDS RX0-

TMDS RX1+ 18 TMDS RX0+

TMDS Ground 19 TMDS Ground

Floating 20 Floating

Floating 21 Floating

+5V/+3.3V power 22 TMDS Ground

Self test 23 TMDS Clock+

Hot Plug Detect

24 TMDS Clock-

19" LCD Color Monitor Dell E1909Wc

4.2 Factory Preset Display Modes

Display Mode Horizontal

Frequency

(kHz)

VESA, 720 x 400 31.5 70.0 28.3 -/+

VESA, 640 x 480 31.5 60.0 25.2 -/-

VESA, 640 x 480 37.5 75.0 31.5 -/-

VESA, 800 x 600 37.9 60.3 40 +/+

VESA, 800 x 600 46.9 75.0 40 +/+

VESA, 1024 x 768 48.4 60.0 65.0 -/-

VESA, 1024 x 768 60.0 75.0 78.8 +/+

VESA, 1152 x 864 67.5 75.0 108.0 +/+

VESA, 1280 x 800 61.6 60.0 83.5 +/-

VESA, 1280 x 1024 64.0 60.0 108.0 +/+

VESA, 1280 x 1024 80.0 75.0 135.0 +/+

VESA, 1440 x 900 56.0 60.0 106.0 -/+

Vertical Frequency

(Hz)

Pixel Clock

(MHz)

Sync Polarity

(Horizontal/Vertical)

4.3 Power Supply Requirements

A/C Line voltage range : 100 V ~ 240 V

A/C Line frequency range

Current : 1.5A max at 100V; 0.8A max at 240 V

Peak surge current : < 60A peak at 240 VAC and cold starting

Leakage current : < 3.5mA

Power line surge : No advance effects (no loss of information or defect)

DC output Voltage

: 50 ± 3Hz, 60 ± 3Hz

with a maximum of 1 half-wave missing per second

: 5VDC ± 5％; 12VDC± 5％

19" LCD Color Monitor Dell E1909Wc

4.4 Panel Specification

This specification applies to the 19 inch-wide Color TFT-LCD Module M100PW01.

The display supports the WXGA+(1440(H)X900(V))screen format and 16.7M clors.All input signal are 2 signal

LVDS interface compatible。

This module does not contain an inverter card for backlight.

4.4.1 Display Characteristics

19" LCD Color Monitor Dell E1909Wc

4.4.2 Optical Characteristics

Ta= 25°C, VLCD=5.0V, fV=60Hz fCLK=54MHz, IBL=7.5mA

19" LCD Color Monitor Dell E1909Wc

4.5 Incoming inspection standard

Inspection environment conditions：

4.5.1 Electrical inspection specification

19" LCD Color Monitor Dell E1909Wc

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