Service Manuals, User Guides, Schematic Diagrams or docs for : RCA LCD L19WD20 RCA+L19WD20

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RCA+L19WD20


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19'' LCD TV                                                                                                            RCA L19WD20



Service
Service
Service




                                                                                                                  Horizontal Frequency
                                                                                                                           31-60 kHz

                                                        TABLE OF CONTENTS

Description                                                        Page       Description                                              Page


Table Of Contents......................................................1      7. PCB Layout ....................................................26
Important Safety Notice...................................................2   7.1.Main Board...........................................26
Revision List........................................................ 3       7.2.Power Board..............................................30
1. General Specification...............................................4      7.3.IR Board.......................................................33
2. Operating Instructions.........................................5           7.4.Connector Board..........................................33
2.1. The Use Of Remote Control.................................5              7.5.Key Board.....................................................33
2.2. To Use The Menu...............................................6          8. White-Balance, Luminance Adjustment...................34
2.3. How To Connect..............................................11           9 Block Diagram..................................................36
2.4. Front Panel Control Knobs.................................14             10. Schematic.....................................................37
3. Precautions and Notices .....................................15            10.1 Main Board................................................37
4. Input/Output Specification.......................................16        10.2. Power Board.............................................54
5. Mechanical Instructions.........................................18         11. Exploded View................................................56
6. Repair Flow Chart ..............................................21         12. BOM List.....................................................57



                                   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
19'' LCD TV                                                                                          RCA L19WD20
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
19'' LCD TV                                                  RCA L19WD20
                             Revision List

    Version   Release Date   Revision Instructions      TPV Model

     A00      Nov.-26-2006       Initial Release     E196MZNKW4RANP




                                   3
19'' LCD TV                                                                     RCA L19WD20
1. General Specification
                   Items                                            Specification
                 Panel Type                     19" M190A1-L02 C1panel
                 Driving system                 TFT-LCD CMO Panel
                 Aspect Ratio                   14.4: 9
                 Resolutions                    1440 x900

LCD Panel        Active Area                    596.259mm (H) x 335.232mm (V)
                 Pixel Pitch                    0.285mm x0.285mm

                 Display colors                 16.2 million

                 Lamp Type/Life                 40000 hr (type)
                 Color Temperature              Cool / Warm/normal
                 TV Standard                    NTSC/M
TV Function
                 Color systems                  NTSC
                 AV                             RCA x 1                 Audio L/R x 1
Video Inputs     S-Video                        S-Video x 1             Audio L/R x 1
                 COMPONENT                      Y,Cb,Cr x 1             Audio channel L / Rx 1
                                                Speaker (built-in): Two 5W speakers
Audio Output     Audio Output: L / R
                                                Headphone Mini-jack for stereo (3.5



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