Service Manuals, User Guides, Schematic Diagrams or docs for : AOC LCD L22W831 AOC+L22W831

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AOC+L22W831


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22LCD TV                                                                                                               AOC L22W831



Service
Service
Service




                                                                                                                 Horizontal Frequency
                                                                                                                         31.5~60 kHz

                                                           TABLE OF CONTENTS

 Description                                                         Page     Description                                              Page

Table Of Contents......................................................1      6.1.Main Board................................................24
Important Safety Notice...................................................2   6.2.Power Board..............................................27
Revision List.........................................................3       6.3.Key Board.............................................28
1. General Specification...............................................4      6.4.IR Board................................................28
2. Operating Instructions.........................................5           7. White-Balance, Luminance Adjustment...................29
2.1. The Use Of Remote Control.................................5              8. Block Diagram..................................................30
2.2. To Use The Menu...............................................6          9. Schematic.....................................................31
2.3. How To Connect..............................................10           9.1 Main Board....................................................31
2.4. Front Panel Control Knobs.................................13             9.2.Power Board..................................................42
3. Input/Output Specification.......................................14        9.3.Key Board................................................44
4. Mechanical Instructions.........................................16         10. Exploded View..............................................45
5. Repair Flow Chart ..............................................19         11. BOM List.....................................................46
6. PCB Layout ....................................................24          12.Different Parts List..........................................64


                                                             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

      R FOR TH

        UNIT WHEN S


                                                                        1
      CI
22LCD TV                                                                                             AOC L22W831
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 might 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 radiations 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.)




                                                            2
22LCD TV                                                    AOC L22W831
                            Revision List

   Version   Release Date   Revision Instructions      TPV Model

    A00      Jul-14-2008        Initial Release     E228CANSW8AE3N
                                                    E228CANSW8AGNN
    A01      Sep.-17-2008      Add New BOM
                                                    E228CANSW8ACNN




                                  3
22LCD TV                                                                   AOC L22W831
1. General Specification
                   Items                                     Specification
                 Panel Type                 CLAA220WA01 032 FZ CPT panel
                 Driving system             TFT-LCD CMO Panel
                 Aspect Ratio               16: 10
                 Resolutions                1680 x 1050
LCD Panel        Brightness                 300 cd/
                 Contrast                   1000:1
                 Pixel Pitch                0.27675mm x0.27675mm
                 Display colors             16.7 million
                 Color Temperature          Cool / Warm/normal
                 TV Standard                NTSC-M/PAL-M/PAL-N
TV Function
                 Color systems              NTSC-M/PAL-M/PAL-N
                 AV                         RCA x 1                Audio L/R x 1
                 S-Video                    S-Video x 1            Audio L/R x 1
Video Inputs
                 COMPONENT                  Y,Cb,Cr x 1            Audio channel L / Rx 1
                 HDMI                       720p,1080i,480p,480i
                                            Speaker (built-in): Two 5W speakers
Audio Output     Audio Output: L / R
                                            Headphone Mini-jack for stereo (3.5



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