Dell E2209Wc User manual

22" LCD Color Monitor Dell E2209Wc
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Service
Service
Service
Horizontal Frequency
30kHzto83kHz
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.
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
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
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.General Instructions…………………………………….7
3.2.Control Buttons……………...............……...............9
3.3 Adjusting the Picture...........…………….........…….10
4.Input/Output Specification.............……………........…19
4.1.Input Signal Connector............………….................19
4.2.Factory Preset Display Modes...…..…......................21
4.3.Power Supply Requirements..........……...................20
4.4.Panel Specification…….....……………..................21
4.5.Definition of Pixel Defects…………...............……….23
5.Block Diagram…….…...................…………................25
5.1.Software Flow Chart………..………………....….......25
5.2.Electrical Block Diagram………………..…..….......27

22" LCD Color Monitor Dell E2209Wc
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Revision List
Revision Release Date Revise history TPV model
A00 Jun.-16-2008 Initial Release TC8GMAHKWMDDHN
A01 Jul.-05-2008 Add TPV Model name in item 14
TC8GMAHKWMDDHC
TC8MMAHKWMDDHC
TC8GMAHMWMDDHN
TC8MMAHMWMDDHN
TC8GMAHLWMDDHN
TC8MMAHLWMDDHN
TC8GMAHMWMDLHN
TC8MMAHMWMDLHN
TC8GMAHJWMDDHN
TC8MMAHJWMDDHN
TC8GMAHFWMDDHN
TC8MMAHFWMDDHN
TC8GMAHMWMDLHC
TC8MMAHMWMDLHC
TC8GMAHJWMDDHC
TC8MMAHJWMDDHC
TC8GMAHFWMDDHC
TC8MMAHLWMDDHC
TC8MMAHMWMDDHC
TC8MMAHFWMDDHC
A02 Aug.-13-2008 Add TPV Model name in item 14
TC8MMAHLWMDDHC

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

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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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1. Monitor Specifications
Screen type Active matrix - TFT LCD
Panel Type LM220WE1-TLE1 KR LGD
Size 22 inches (22-inch viewable image size)
Pixel pitch 0.282 mm (H) x 0.282mm(V)
Viewable angle 160° (vertical) typ, 170° (horizontal) typ
LCD Panel
Response time 5ms typical
Video R, G, B Analog Interface, DVI digital Interface
Separate Sync H/V TTL
H-Frequency 30kHz – 83kHz
Input
V-Frequency 56 - 75Hz
Dynamic contrast ratio 1000:1 (typical)
Luminance output 300 CD/m ²(typical)
Max. Resolution 1680 x 1050 at 60 Hz
Plug & Play VESA DDC
ON Mode <85W
EPA ENERGY
STAR®OFF Mode <2W
Input Connector 15-pin D-subminiature, blue connector;
DVI-D, white connector
Preset display area:
Height : 406.7 mm (16.01 inches)
Width: 511.75 mm (20.14 inches)
Depth：163.9 mm（6.4 inches）
Power Source 100 to 240 VAC / 50 or 60 Hz + 3 Hz / 1.5A
Video display capabilities (DVI playback) 480i/480p/576i/576p/720p/1080i/1080p (Support HDCP)
Environmental
Considerations
Operating Temp: 5° to 35°C
Operating Humidity: 10% to 80%
Storage Temp.: -20° to 60°C
Weight
Weight with packaging: 16.70 lbs (7.59 kg)
Weight with stand assembly and cables: 12.91 lbs (5.86 kg)
Weight without stand assembly: 9.25 lbs (4.20 kg)
Weight of stand assembly: 2.73 lbs (1.24 kg)

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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.
Video signal, DDC
Power board
Flat Panel and
CCFL backlight
Main Board
Key board
RS232 Connector
For white balance
adjustment in factory
mode
CCFL Drive.
AC-IN
100-240V
Monitor Block Diagram
Host Computer

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3. Operation instructions
3.1 Using the Front Panel Controls
Use the buttons on the front of the monitor to adjust the image settings.
Front panel
Button Description
A
OSD Menu
Use the MENU button to launch the on-screen display (OSD) and select the OSD Menu. See
B
Brightness/
Contrast
Hot Key
Use this button to directly access the "Brightness/Contrast" menu or to increase the values of the
selected menu option.
C
Auto Adjust
Use Auto Adjust to activate automatic setup/adjustment or to decrease the values of the selected
menu option.
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 and Phase controls under
Displays Settings.
The following dialog appears on a black screen as the monitor automatically adjusts to the current
input:
D
OK / Input
Source
Select
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
•DVI-D input
If both VGA and DVI cables are connected to one Computer, this monitor displays an image

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automatically as long as a video signal is present in either VGA or DVI outputs. On a display
connected to two Computers, set equal time for both screen savers. The video input from the
movement of the first mouse will activate the display.
A
s you cycle through the inputs, the following messages appear to indicate currently selected input
source. It may take 1 or 2 seconds for the image to appear.
or
or
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.
or
E
Power
button
(with
power light
indicator)
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.

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3.2 Control Buttons
1 OSD menu button
2 Up button
3 Down button
4 OK button
5 Power button

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3.3 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

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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.
Icon Menu and
Submenus
Description
Brightness&C
ontrast
Use this menu to activate Brightness/Contrast adjustment.
Back
Push to go back to the main menu.
Brightness Brightness adjusts the luminance of the backlight.
Push the button to increase brightness and push the button to
decrease brightness (min 0 ~ max 100).
Contrast 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.
Exit Menu
Push to exit the OSD main menu.

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Auto Adjust Even though your computer recognizes your monitor on startup, the Auto
Adjustment function optimizes the display settings for use with your particular
setup.
NOTE: In most cases, Auto Adjust produces the best image for your
configuration.
Input Source Use the INPUT SOURCE menu to select between different video signals that
may be connected to your monitor.
Back
Push to go back to the main menu.
VGA
Select VGA input when you are using the analog (VGA) connector. Push
to select the VGA input source.
DVI-D
Select DVI-D input when you are using the Digital (DVI) connector. Push
to select the DVI input source.
Scan for
Sources
Select Auto Select to scan for available input signals.
Exit Menu
Push to exit the OSD main menu.
Color Settings 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.

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Color setting
mode
submenu
Back
Push to go back to the main menu.
Input Color
Format
Allows you to set the video input mode to.
•RGB: Select this option if your monitor is connected to a computer or
DVD player using the VGA and DVI cable or the HDMI to DVI
adapter.
•YPbPr: Select this option if the your DVD player supports only YPbPr
output.
Mode
Selection
Allows you to set the display mode to:
•Graphics: Select this mode if your monitor is connected to your
computer.
•Video: Select this mode if you monitor is connected to a DVD player.
NOTE: Depending upon the Display Mode you select the Preset Modes
available for your monitor change.

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Preset Mode Allows you to choose from a list of preset color modes.
In the Graphics mode, you can set the color to the following preset values:
•Standard: Loads the monitor's default color settings. This is the
default preset mode.
•Multimedia: Loads color settings ideal for multimedia applications.
•Game: Loads color settings ideal for most gaming applications.
•Warm: Increase the color temperature. The screen appears warmer
with a red/yellow tint.
•Cool: Decreases the color temperature. The screen appears cooler
with a blue tint.
•Custom (R, G, B): Allows you to manually adjust the color settings.
Press the and buttons to adjust the Red, Green, and Blue
values and create your own preset color mode.
In the Video mode, you can set the color to the following preset values:
•Movie:Loads color settings ideal for movies. This is the default
preset mode.
•Sports: Loads color settings ideal for sports.
•Game: Loads color settings ideal for game.
•Nature: Loads color settings ideal for nature.
Hue This feature can shift color of video image to green or purple. This is used to
adjust the desired flesh tone color. Use or to adjust the hue from '0'
to '100' .
Push to increase the green shade of the video image
Push to increase the purple shade of the video image

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Saturation
This feature can adjust the color saturation of the video image. Use or
to adjust the saturation from '0' to '100'.
Push to increase the monochrome appearance of the video image
Push to increase the colorful appearance of the video image
Color Reset Resets your monitor's color settings to the factory defaults.
Exit Menu
Push to exit the OSD main menu.
DISPLAY
SETTINGS
Display
Setting subm
enu
Display Setting submenu for VGA input
Display Setting submenu for DVI-D input
Back
Push to go back to the main menu.
Horizontal Pos
ition Use the and buttons to adjust image left and right. Minimum is '0' (-).
Maximum is '100' (+).
NOTE: When using a DVI source, the Horizontal Position setting is not

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available.
Vertical Positi
on Use the and buttons to adjust image up and down. Minimum is '0' (-).
Maximum is '100' (+).
NOTE: When using a DVI source, the Vertical Position setting is not
available.
Sharpness
This feature can make the image look sharper or softer. Use or to
adjust the sharpness from '0' to '100'.
Pixel Clock The Phase and Pixel Clock adjustments allow you to adjust your monitor to
your preference.
Use the and buttons to adjust for best image quality.
Phase If satisfactory results are not obtained using the Phase adjustment, use the
Pixel Clock (coarse) adjustment and then use Phase (fine), again.
Display Reset Reset the image to the original factory setting.
Exit Menu
Push to exit the OSD main menu.
OTHER
SETTINGS
Back
Push to go back to the main menu.
Language Language option to set the OSD display to one of seven languages (English,
Espanol, Francais, Deutsch, Brazilian Portuguese, Japanese, or Simplified
Chinese).
Menu This function is used to change the OSD background from opaque to

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Transparency transparent.
Menu Timer OSD Hold Time: Sets the length of time the OSD will remain active after the
last time you pressed a button.
Use the and buttons to adjust the slider in 1 second increments, from
5 to 60 seconds.
Menu Lock Controls user access to adjustments. When 'Lock' is selected, no user
adjustments are allowed. All buttons are locked except button.
DDC/CI 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".
You can disable this feature by selecting Disable. The following warning
message appears:
Select Yes to disable DDC/CI and No to exit with out making changes.
LCD
Conditioning
This feature will help reduce minor cases of image retention.
If an image appears to be stuck on the monitor, select LCD Conditioning to
help eliminate any image retention. Using the LCD Conditioning feature may
take some time. Severe cases of image retention are known as burn-in, the
LCD Conditioning feature does not remove burn-in.
Below warning message appears once user select “Enable" LCD
Conditioning.

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Factory Reset Reset all OSD settings to the factory preset values.
Exit Menu
Push to exit the OSD main menu.

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4. Input/Output Specification
4.1 Input Signal Connector
VGA Connector:
Pin No. Description Pin No. Description
1. Red Video 9. Computer 5V/3.3V
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
VGA Connector layout
DVI Connector:
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 TMDS RX1- 17 TMDS RX0-
2 T.M.D.S. Data 2+ 10 TMDS RX1+ 18 TMDS RX0+
3 TMDS Ground 11 TMDS Ground 19 TMDS Ground
4 Floating 12 Floating 20 Floating
5 Floating 13 Floating 21 Floating
6 DDC Clock 14 +5V/+3.3V power 22 TMDS Ground
7 DDC Data 15 Self test 23 TMDS Clock+
8 Floating 16 Hot Plug Detect 24 TMDS Clock-

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4.2 Factory Preset Display Modes
Display Mode Horizontal
Frequency (kHz)
Vertical
Frequency
(Hz)
Pixel Clock (MHz) Sync Polarity
(Horizontal/Vertical)
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 60.0 40.0 +/+
VESA, 800 x 600 46.9 75.0 49.5 +/+
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 1024 64.0 60.0 135.0 +/+
VESA, 1280 x 1024 80.0 75.0 135.0 +/+
VESA, 1680 x 1050 65.2 60.0 146.3 -/+
VESA, 1680 x 1050 64.6 60.0 119.0 +/-
4.3 Power Supply Requirements
A/C Line voltage range : 100 V ~ 240 V
A/C Line frequency range : 50 ±3Hz, 60 ±3Hz
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)
with a maximum of 1 half-wave missing per second
DC output Voltage : 5VDC ± 5％; 12VDC± 5％