Service Manuals, User Guides, Schematic Diagrams or docs for : AOC Monitor 819Sw

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819Sw


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18.5" LCD Color Monitor                                                                                                             AOC 819Sw

Service
Service
Service




                                                                                                                          Horizontal Frequency
                                                                                                                                        30-80 kHz
                                                            TABLE OF CONTENTS
Description                                                                Page     Description                                                 Page
Table Of Contents.................................................1                 5.2.Electrical Block Diagram.............................16
Revision List...................................................................2   6.Schematic.......................................................18
Important Safety Notice.................................................3           6.1.Main Board....................................................18
1.Monitor Specification...............................................4             6.2.Power Board...............................................22
2.LCD Monitor Description.........................................5                 6.3.KEY Board.....................................................26
3.Operation Instruction................................................6            7.PCB Layout..................................................27
3.1.General Instructions..................................................6         7.1.Main Board...................................................27
3.2.Control Buttons..........................................................6      7.2.Power Board..............................................30
3.3.OSD Menu.................................................................7      7.4.Key Board.....................................................33
4.Input/Output Specification.........................................9              8.Maintainability................................................34
4.1.Input Signal Connector.............................................9            8.1. Equipments and Tools Requirement..............34
4.2.Power Supply Requirements......................................9                8.2.Trouble Shooting..........................................34
4.3.Factory Preset Display Modes................................10                  9.White-Balance,Luminance adjustment..............40
4.4.Panel Specification...........................................11                10.Monitor Exploded View....................................42
5.Block Diagram............................................................14       11.BOM List................................................43
5.1.Software Flow Chart................................................14           12.Different Parts List.....................................52

                                                                    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
18.5" LCD Color Monitor                                            AOC 819Sw
                                 Revision List

    Version       Release Date       Revision History     TPV Model Name

      A00         Nov.-10-2008         Initial release   T8RCM5NCWXA4NN

      A01         Mar.-13-2009        Add new BOM        T8RAM5NCWXA4NN




                                       2
18.5" LCD Color Monitor                                                                                  AOC 819Sw
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.)




                                                            3
18.5" LCD Color Monitor                                                                       AOC 819Sw
1. Monitor Specifications
                                 Driving System        18.5" TFT Color LCD
LCD Panel                        Viewable Image Size   470mm diagonal
                                 Pixel pitch           0.3mm (H) x 0.3mm (V)
                                 Video                 R, G, B Analog Interface
Input                            Separate Sync.        H/V TTL
                                 H-Frequency           30KHz-80KHz
                                 V-Frequency           55-75Hz
Display Colors                                         16.7M Colors
Dot Clock                                              85.5MHz
Max. Resolution                                        1366 x768 @60Hz
Plug & Play                                            VESA DDC 2BTM
                                 ON Mode               25W
EPA ENERGY STAR



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