Service Manuals, User Guides, Schematic Diagrams or docs for : AOC Monitor 719Va

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719Va


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17" LCD Color Monitor                                                                                                            AOC 719Va

Service
Service
Service




                                                                                                                       Horizontal Frequency
                                                                                                                                    31-80 KHz
                                                       TABLE OF CONTENTS
Description                                                          Page        Description                                                Page
Table Of Contents......................................................1         5.2.Electrical Block Diagram...........................19
Revision List........................................................2           6.Schematic.....................................................21
Important Safety Notice.....................................3                    6.1.Main Board...................................................21
1.Monitor Specification...............................................4          6.2.Power Board.............................................26
2.LCD Monitor Description........................................6               6.3.Key Board...............................................29
3.Operation Instruction............................................7             7.PCB Layout.....................................................30
3.1.General Instructions.........................................7               7.1.Main Board.................................................30
3.2.Control Button......................................................7        7.2.Power Board..........................................32
3.3.OSD Menu.............................................................8       7.3.Key Board....................................................35
4.Input/Output Specification.......................................12            8.Maintainability................................................36
4.1.Input Signal Connector.........................................12            8.1.Equipments and Tools Requirement...............36
4.2.Power Supply Requirements...............................13                   8.2.Trouble Shooting..........................................37
4.3.Factory Preset Display Modes................................13               9.White-Balance, Luminance adjustment.............43
4.4.Panel Specification...............................................14         10.Monitor Exploded View.................................45
5.Block Diagram.........................................................17       11.BOM List...................................................46
5.1.Software Flow Chart..........................................17              12.Different Parts List.......................................60

                                                              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
                                                                       9.
                                                                       10.

                                                                             1
17" LCD Color Monitor                                                 AOC 719Va
                                  11. Revision List

    Version       Release Date          Revision History    TPV Model Name

      A00         May.14, 2008            Initial release   T77SRHDBK1A1DN

                                                            T77SRHDBK1AC5N
      A01         July 28, 2008          Add new BOM
                                                            T77SRHNCK1GLDN

      A02         Sep.04, 2008           Add new BOM        T77SRHDBK1AADN

      A03         Oct.29, 2008           Add new BOM        T78SRHNCK1SPDN

      A04         Dec.26, 2008           Add new BOM        T78SRHNCK1SCDN




                                            2
17" LCD Color Monitor                                                                                    AOC 719Va
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
17" LCD Color Monitor                                                                          AOC 719Va
1. Monitor Specifications
                          Model number         719Va

                          Driving system       TFT Color LCD

                          Viewable Image
                                               432mm diagoanl
                          Size

          LCD Panel       Pixel pitch          0.264mm(H) x 0.264mm(V)

                          Video                R, G, B Analog lnterface & Digital Interface

                          Separate Sync.       H/V TTL

                          Display Color        16.7M Colors

                          Dot Clock            135 MHz

                          Horizontal scan
                                               31 kHz - 80 kHz
                          range

                          Horizontal scan
                                               337.920mm
                          Size(Maximum)

                          Vertical scan
                                               56 Hz - 75 Hz
                          range

                          Vertical scan
                                               270.336mm
                          Size(Maximum)

                          Optimal preset
                                               1280 x 1024 (60 Hz)
                          resolution
          Resolution      Highest preset
                                               1280 x 1024 (75 Hz)
                          resolution

                          Plug & Play          VESA DDC2B/CI

                          Input Connector      D-Sub 15pin & DVI-D

                                               Analog: 0.7Vp-p(standard), 75 OHM, Positive &
                          Input Video Signal
                                               DVI-D Digital Interface (TMDS)

                          Power Source         100~240VAC, 50/60Hz
                          Power
                                               Active < 37 W
                          Consumption
                                               Standby < 2 W
                          Speakers             2 x 1.5W
           Physical       Connector Type       15-pin Mini D-Sub & DVI-D
        Characteristics   Signal Cable Type    Detachable

                          Dimensions &
                          Weight:

                          Height (with base)   371.6 mm
                          Width                383.4 mm
                          Depth                190 mm



                                                       4
17" LCD Color Monitor                                                   AOC 719Va
                        Weight (monitor
                                          3.86 kg
                        only)

                        Weight (with
                                          5.41 kg
                        packaging)

                        Temperature:

                        Operating         0



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