Service Manuals, User Guides, Schematic Diagrams or docs for : AOC LCD L42W665 aoc_l42w665_lcd_tv

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aoc_l42w665_lcd_tv


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42 LCD TV                                                                                                                AOC L42W665



Service
Service
Service




                                                                                                                    Horizontal Frequency
                                                                                                                             31~60kHz

                                                            TABLE OF CONTENTS

Description                                                        Page        Description                                                Page


 Table Of Contents......................................................1       6.3.IR Board.......................................................33
 Important Safety Notice...................................................2    6.4.Connector Board..........................................34
 Revision List........................................................3         6.5.Key Board.....................................................34
 1. General Specification...............................................4       7. White-Balance, Luminance Adjustment...................35
 2. Operating Instructions.........................................5            8 Block Diagram..................................................37
 2.1. The Use Of Remote Control.................................5               9. Schematic.....................................................38
 2.2. To Use The Menus............................................6             9.1 Main Board................................................38
 2.3. How To Connect..............................................13            9.2. Power Board.............................................54
 2.4. Front Panel Control Knobs.................................15              9.3. IR Board....................................................55
 3. Input/Output Specification.......................................16         9.4. Key Board.............................................56
 4. Mechanical Instructions.........................................18          9.5. Side Board.................................................57
 5. Repair Flow Chart ..............................................23          9.6. Audio Board................................................58
 6. PCB Layout ....................................................28           10. Exploded View...........................................59
 6.1.Main Board....................................................28           11. BOM List.....................................................60
 6.2.Power Board..............................................30                12.Different Part List........................................... 88


                                                              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
42 LCD TV                                                                                             AOC L42W665
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
42 LCD TV                                                    AOC L42W665
                            Revision List

   Version   Release Date   Revision Instructions      TPV Model

     A00      July-10-07        Initial Release     E427AZNS2WA2NN

                                                    E427AZNS2WA2NN/
     A01      Aug-15-07        Add New BOM
                                                    E427AZNK2WA5NN




                                  3
42 LCD TV                                                                                           AOC L42W665
1. General Specification
                            Items                                                  Specification
                                     Panel Type                             T420XW01 V500 TW AUO
                                    Driving system                             TFT-LCD AUO Panel
                                    Aspect Ratio                                        16: 9
                                     Resolutions                                     1366 x768
                                     Active Area                              930.25 (H) x 523.01(V)
       LCD Panel                      Pixel Pitch                           0.681 mm (H) X 0.681 mm(V)

                                    Display colors                                   16.7 million

                              Panel Typical Brightness:                              500 cd/

                              Panel Typical Contrast                                   1500:1

                                 Color Temperature                               Cool / Warm/normal
                                    H-Frequency                                   31KHz to 60KHz
          Input
                                    V-Frequency                                    50Hz to 75 Hz
                                     TV Standard                                       NTSC/M
      TV Function
                                    Color systems                                      NTSC
                                          AV                          RCA x 1                   Audio L/R x 1
                                       S-Video                        Y ,C x 1                  Audio L/R x 1
      Video Inputs
                                    COMPONENT                    Y, Pr/Cr, Pb/Cb x 1      Audio channel L / Rx 1
                                       AUDIO                          Headphone Mini-jack for stereo (3.5



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