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20" LCD Color Monitor Dell SP2009Wc
Service
Service
Service
Horizontal Frequency
30 kHz to 83 kHz
Table Of Contents
Description Page Description Page
Table Of Contents..........................................................1 6.Mechanical Instruction...................................29
Revision List..................................................................2 7.Schematic Diagram...................................................35
ECN History..................................................................3 7.1Main Board.....................................................35
Important Safety Notice................................................4
7.2 Power Board.........................................................41
1.Monitor Specifications.................................................5
7.3 USB Board.....................................................43
2.LCD Monitor Description........................................6
7.4 Key Board.......................................................44
3.Operation Instructions...............................................7
3.1.General Instructions...........................................7 8.PCB Layout..............................................................45
3.2.Control Buttons...................................................8 8.1.Main Board............................................................45
3.3 Adjusting the Picture..............................................9 8.2.Power Board.......................................................47
4.Input/Output Specification.......................................20 8.3.USB Board..........................................................48
4.1.Input Signal Connector.........................................20 9.Maintainability...................................................49
4.2.Factory Preset Display Modes.................................21 9.1.Equipments and Tools Requirement.......................49
4.3.Power Supply Requirements...................................21 9.2.Trouble Shooting..................................................50
4.4.Panel Specification............................................22 10.White-Balance, Luminance adjustment..................56
4.5.Definition of Pixel Defects.....................................23 11.ISP Instruction.......................................................58
5.Block Diagram.........................................................25 12.Monitor Exploded View........................................62
5.1.Software Flow Chart...........................................25 13.BOM List.................................................................64
5.2.Electrical Block Diagram...................................27 14.Different Parts List...........................................85
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
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20" LCD Color Monitor Dell SP2009Wc
Revision List
Revision Release Date Revise history TPV model
TA8CMUHKWMDDBZ
TA8GMUHKWMDDBZ
TA8GMUNMWMDDBC
TA8GMUNLWMDLBC
TA8CMUNLWMDLBC
A00 May.-15-2008 Initial Release TA8GMUNJWMDDBC
TA8CMUNJWMDDBC
TA8GMUNMWMDLBC
TA8CMUNMWMDLBC
TA8GMUNFWMDLBC
TA8CMUNFWMDLBC
Add "Camera & Microphone test
A01 Jun.-5-2008 ALL
sop" in item 6
TA8GMUHKWMDDBC
TA8GMUNKWMDDBC
TA8CMUNKWMDDBC
TA8GMUNKWMDDBZ
TA8CMUNKWMDDBZ
TA8GMUNBWMDDBC
A02 Jul.-05-2008 Add TPV Model in item 13&14
TA8CMUNBWMDDBC
TA8GMUNBWMDDBZ
TA8CMUNBWMDDBZ
TA8GMUNBWMDD4C
TA8CMUNBWMDD4C
A03 Dec.-02-2008 Add TPV Model in item 14 TA8GMUNKWMDRBZ
Change Y value to Ymin (min
A04 Dec.-22-2008
luminance valuein item 10 ALL
2
20" LCD Color Monitor Dell SP2009Wc
ECN History
ECN No. Change Description Service Deposition Cut-in date MSR
3
20" LCD Color Monitor Dell SP2009Wc
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
20" LCD Color Monitor Dell SP2009Wc
1. Monitor Specifications
Screen type Active matrix - TFT LCD
Panel Type CLAA201WA04A 336 FZ CPT
Size 20.1 inches (20.1-inch viewable image size)
LCD Panel
Pixel pitch 0.258 mm (H) x 0.258mm(V)
Viewable angle 160