Dell E1909Wc Schematic
19" LCD Color Monitor |
Dell E1909Wc |
Service
Service
Service
Horizontal Frequency
30 kHz to 83 kHz
Table Of Contents
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
Description Page
6.Mechanical Instruction………………..……..…..….......29
7.Schematic Diagram………..................................….....34
7.1Main Board......………......................................34
7.2Power Board……..…….……....................................38
7.3Key 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.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
1
19" LCD Color Monitor |
Dell E1909Wc |
Revision List
Revision |
Release Date |
Revise history |
TPV model |
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T9RAMAHKX5DFHN |
A00 |
Jun.-16-2008 |
Initial Release |
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T9RMMAHKX5DFHN |
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T9RSMAHKX5DFHN |
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T9RSMAHKX5DFHC |
A01 |
Aug.-12-2008 |
Add TPV Model in item 14 |
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T9RMMAHKX5DFHC |
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T9RAMAHKX5DFHC |
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2
19" LCD Color Monitor |
Dell E1909Wc |
ECN History
ECN No. |
Change Description |
Service Deposition |
Cut-in date |
MSR |
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3
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.)
4
19" LCD Color Monitor |
Dell E1909Wc |
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1. Monitor Specifications |
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Screen type |
Active matrix - TFT LCD |
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Panel Type |
M190PW01 V00A SZ AUO |
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Size |
19 inches (19-inch viewable image size) |
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LCD Panel |
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Pixel pitch |
0.283mm (H) x 0.283mm(V) |
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Viewable angle |
160° (vertical) typ, 160° (horizontal) typ |
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Response time |
8ms typical |
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Video |
R, G, B Analog Interface, DVI digital Interface |
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Input |
Separate Sync |
H/V TTL |
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H-Frequency |
30kHz – 83kHz |
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V-Frequency |
56 - 75Hz |
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Dynamic contrast ratio |
1000:1 (typical) |
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Luminance output |
300 CD/m ²(typical) |
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Max. Resolution |
1440 x 900 at 75 Hz |
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Plug & Play |
VESA DDC |
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EPA ENERGY |
ON Mode |
<75W |
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STAR® |
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OFF Mode |
<1W |
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Input Connector |
15-pin D-subminiature, blue connector; |
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DVI-D, white connector |
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Height : 14.32 inches (363.74 mm) |
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Dimensions (with stand) |
Width: 17.45 inches (442.85 mm) |
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Depth 5.78 inches (146.86 mm) |
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Power Source |
100 to 240 VAC / 50 or 60 Hz + 3 Hz / 1.5A |
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Video display capabilities (DVI playback) |
480i/480p/576i/576p/720p/1080i/1080p (Support HDCP) |
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Environmental |
Operating Temp: 5° to 35°C |
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Operating Humidity: 10% to 80% |
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Considerations |
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Storage Temp.: -20° to 60°C |
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Weight with packaging: 13.54 lbs (6.14 kg) |
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Weight |
Weight with stand assembly and cables: 10.27 lbs (4.66 kg) |
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Weight without stand assembly: 7.80 lbs (3.54 kg) |
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Weight of stand assembly: 2.23 lbs (1.01 kg) |
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5 |
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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
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CCFL Drive. |
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Flat Panel and |
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CCFL backlight |
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RS232 Connector |
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Power board |
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Main Board |
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For white balance |
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adjustment in factory |
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mode |
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Key board |
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Video signal, DDC |
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AC-IN |
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Host Computer |
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100-240V |
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6
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 |
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A |
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Use the MENU button to launch the on-screen display (OSD) and select the OSD |
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Menu. |
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Menu |
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B |
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Use this button to directly access the "Brightness/Contrast" menu or to increase the |
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values of the selected menu option. |
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Brightness&Con |
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trast /Adjust UP |
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C |
Use Auto Adjust to activate automatic setup/adjustment or to decrease the values of |
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the selected menu option. The following dialog appears on a black screen as the |
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Automatic |
monitor self-adjusts to the current input: |
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Adjust /Adjust |
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Down |
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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.
D
Use this button to select the input source or select an OSD menu option. Use the Input Source Input source button to select one of the two different video signals that may be Select/Select connected to your monitor:
•VGA input
7
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>
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or |
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If either VGA or DVI-D input is selected and both VGA and DVI-D cables are not |
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connected, a floating dialog box as shown below appears. |
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or |
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E |
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Use the Power button to turn the monitor on and off. |
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Power |
The Blue LED indicates the monitor is on and fully functional. An amber LED |
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(with power light |
indicates DPMS power save mode. |
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indicator) |
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8
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
Or
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 
button once to activate the highlighted option.
4.Push the 
and 
buttons to select the desired parameter.
5.Push 
to enter the slide bar and then use the 
or 
button, according to the indicators on the menu, to
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.
9
19" LCD Color Monitor |
Dell E1909Wc |
Icon |
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Menu and |
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Description |
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Submenus |
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Brightness
& Contrast
Brightness
Contrast
Auto Adjust
Use this menu to activate Brightness/Contrast adjustment.
Brightness adjusts the luminance of the backlight.
Push the 
button to increase brightness and push the 
button to decrease brightness (min 0 ~ max 100).
Adjust Brightness first, and then adjust Contrast only if further adjustment is necessary.
Push the 
button to increase contrast and push the 
button to 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.
Input Source Use the INPUT SOURCE menu to select between different video signals that may be connected to your monitor.
10
19" LCD Color Monitor |
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Dell E1909Wc |
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VGA
DVI-D
Color
Settings
Input Color
Format
Mode
Selection
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.
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.
11
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.
12
19" LCD Color Monitor |
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Dell E1909Wc |
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Hue
Saturation
Reset Color
Settings
Display
Settings
This feature can shift color of video image to green or purple. This is used to
adjust the desired flesh tone color. Use |
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to adjust the hue |
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Push |
to increase the green shade of the video image |
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Push |
to decrease the purple shade of the video image |
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This feature can adjust the color saturation of the video image. Use |
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to adjust the saturation from '0' to '100'. |
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Push |
to increase the monochrome appearance of the video image |
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Push |
to decrease the colorful appearance of the video image |
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Reset your monitor color settings to the factory settings.
Use the Display Settings to adjust image.
13
19" LCD Color Monitor |
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Dell E1909Wc |
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Horizontal
Position
Vertical
Position
Use the 
or 
buttons to adjust image left and right. Minimum is '0' (-). Maximum is '100' (+).
Use the 
or 
buttons to adjust image up and down. Minimum is '0' (-). Maximum is '100' (+).
Sharpness
This feature can make the image look sharper or softer. Use
or 
to adjust the sharpness from '0' to '100'.
Pixel Clock
Phase
Reset Display
Settings
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 
or 
buttons to adjust for best image quality.
If satisfactory results are not obtained using the Phase adjustment, use the Pixel Clock (coarse) adjustment and then use Phase (fine), again.
Select this option to restore default display settings.
Other |
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Select this option to adjust the settings of the OSD, such as, the languages |
Settings |
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of the OSD, the amount of time the menu remains on screen, and so on. |
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14
19" LCD Color Monitor |
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Dell E1909Wc |
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Language Language option to set the OSD display to one of seven languages (English, Espanol, Francais, Deutsch, Portugues,Simplified chinese or Japanese).
Menu Transp arency
Select this option to change the menu transparency by pressing
or 
(Minimum: 0 ~ Maximum: 100).
Menu Timer
Menu Lock
DDC/CI
OSD Hold Time: Sets the length of time the OSD will remain active after the last time you pressed a button.
Use the 
or 
buttons to adjust the slider in 5 second 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 
button.
DDC/CI (Display Data Channel/Command Interface) allows your monitor parameters (brightness, color balance etc) to be adjustable via software on your PC. You can disable this feature by selecting "Disable".
Enable this feature for best user experience and optimum performance of your monitor.
15
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.
16
19" LCD Color Monitor |
Dell E1909Wc |
4. Input/Output Specification
4.1 Input Signal Connector
VGA Connector:
Pin No. |
Description |
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Description |
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1. |
Red Video |
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9. |
Computer 5V/3.3V |
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2. |
Green Video |
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10. |
GND-sync |
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3. |
Blue Video |
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11. |
GND |
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4. |
GND |
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12. |
DDC data |
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5. |
Self-test |
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13. |
H-Sync |
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6. |
R-Ground |
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14. |
V-Sync |
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7. |
G-Ground |
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15. |
DDC clock |
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8. |
B-Ground |
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VGA Connector layout |
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DVI Connector:
Note: Pin 1 is at the top right.
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Signal Assignment |
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Signal Assignment |
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Signal Assignment |
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1 |
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T.M.D.S. Data 2- |
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9 |
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TMDS RX1- |
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17 |
TMDS RX0- |
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2 |
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T.M.D.S. Data 2+ |
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10 |
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TMDS RX1+ |
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18 |
TMDS RX0+ |
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3 |
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TMDS Ground |
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11 |
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TMDS Ground |
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19 |
TMDS Ground |
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4 |
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Floating |
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12 |
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Floating |
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20 |
Floating |
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5 |
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Floating |
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13 |
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Floating |
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21 |
Floating |
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6 |
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DDC Clock |
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14 |
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+5V/+3.3V power |
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22 |
TMDS Ground |
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7 |
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DDC Data |
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15 |
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Self test |
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23 |
TMDS Clock+ |
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8 |
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Floating |
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16 |
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Hot Plug Detect |
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24 |
TMDS Clock- |
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17
19" LCD Color Monitor |
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Dell E1909Wc |
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4.2 Factory Preset Display Modes |
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Display Mode |
Horizontal |
Vertical Frequency |
Pixel Clock |
Sync Polarity |
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Frequency |
(Hz) |
(MHz) |
(Horizontal/Vertical) |
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(kHz) |
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VESA, 720 x 400 |
31.5 |
70.0 |
28.3 |
-/+ |
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VESA, 640 x 480 |
31.5 |
60.0 |
25.2 |
-/- |
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VESA, 640 x 480 |
37.5 |
75.0 |
31.5 |
-/- |
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VESA, 800 x 600 |
37.9 |
60.3 |
40 |
+/+ |
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VESA, 800 x 600 |
46.9 |
75.0 |
40 |
+/+ |
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VESA, 1024 x 768 |
48.4 |
60.0 |
65.0 |
-/- |
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VESA, 1024 x 768 |
60.0 |
75.0 |
78.8 |
+/+ |
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VESA, 1152 x 864 |
67.5 |
75.0 |
108.0 |
+/+ |
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VESA, 1280 x 800 |
61.6 |
60.0 |
83.5 |
+/- |
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VESA, 1280 x 1024 |
64.0 |
60.0 |
108.0 |
+/+ |
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VESA, 1280 x 1024 |
80.0 |
75.0 |
135.0 |
+/+ |
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VESA, 1440 x 900 |
56.0 |
60.0 |
106.0 |
-/+ |
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4.3 Power Supply Requirements
A/C Line voltage range |
: 100 V ~ 240 V |
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A/C Line frequency range |
: 50 ± 3Hz, 60 ± 3Hz |
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Current |
: 1.5A max at 100V; 0.8A max at 240 V |
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Peak surge current |
: < 60A peak at 240 VAC and cold starting |
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Leakage current |
: < 3.5mA |
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Power line surge |
: No advance effects (no loss of information or defect) |
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with a maximum of 1 half-wave missing per second |
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DC output Voltage |
: 5VDC ± 5 ; 12VDC± 5 |
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18
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
19" LCD Color Monitor |
Dell E1909Wc |
4.4.2 Optical Characteristics
Ta= 25°C, VLCD=5.0V, fV=60Hz fCLK=54MHz, IBL=7.5mA
20
19" LCD Color Monitor |
Dell E1909Wc |
4.5 Incoming inspection standard
Inspection environment conditions
4.5.1 Electrical inspection specification
21
19" LCD Color Monitor |
Dell E1909Wc |
22
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