AOC TFT-LCD Color Monitor 712Si I-module (OTPV) Service Manual

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Esquema monitor AOC mod.712Si

Text of AOC TFT-LCD Color Monitor 712Si I-module (OTPV) Service Manual

17 LCD Color MonitorAOC 712Si 1 Service Service Service Horizontal Frequency 30kHz 80kHz TABLE OF CONTENTS DescriptionPageDescriptionPage N SAFETY NOTICE ANYPERSONATTEMPTINGTOSERVICETHISCHASSISMUSTFAMILIARIZEHIMSELFWITHTHE CHASSISANDBEAWAREOFTHENECESSARYSAFETYPRECAUTIONSTOBEUSEDWHENSERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES. TableOfContents...........................................1RevisionList..............................................2 ImportantSafetyNotice...........................31.MonitorSpecification......................................42.LCDMonitorDescription.......53.OperationInstruction..........................63.1GeneralInstructions......................................63.2ControlButton..............................63.3AdjustingthePicture.......................................74.Input/OutputSpecification........................84.1InputSignalConnector.............................84.2 Factory Preset Display Modes......................................94.3 Power Supply........104.4 Panel Specification.........................105.BlockDiagram...................................125.1 Soft Flow Chart................125.2 Electrical Block Diagram..........146.Schematic...........................................156.1MainBoard..............................................156.2InverterBoard......................................256.3 Power Board.......................................267.PCBLayout..........................................277.1 Main Board.............................................277.2PWPCBoard............................................277.3 Key Board...........................................288.Maintainability..............................................288.1 Equipments and Tools Requirement..............288.2 Trouble Shooting....................................299. White-Balance, Luminance adjustment......................3610. Monitor Exploded View................3711. BOM List........................................................3812.DifferentPartlist...........................................55CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING 17 LCD Color MonitorAOC 712Si 2 REVISION LIST RevisionDateRevision HistoryTPV Model A00Feb-05-07Initial ReleaseT76CNNNQHAACNJ A01Mar-19-07Add the Different Part ListT76CNNNQHAA3FJ T76CNNNQHAA4FJ T76CNNNQHAA5FJ 17 LCD Color MonitorAOC 712Si 3 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 persons 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.) 17 LCD Color MonitorAOC 712Si 4 1.Monitor Specifications ItemsDescriptions Driving systemTFT Color LCD LCD PanelSize43.2cm(17.0") Pixel pitch0.264mm( H ) 0.264mm( V ) VideoR,G,B Analog Interface InputSeparate Sync.H/V TTL H-Frequency30kHz 80kHz V-Frequency55-75Hz Display Colors16.2M Colors Dot Clock135MHz Max. Resolution1280 1024 @75Hz Plug & PlayVESA DDC2BTM ON Mode37W EPA ENERGY STAR OFF Mode1W Input Connector15-pin D-Sub Input Video Signal Analog:0.7Vp-p(standard), 75 OHM, Positive Maximum Screen Size Horizontal : 338mm Vertical : 270mm Power Source100~240VAC,47~63Hz Environmental Considerations Operating Temp: 5 to 35C Storage Temp.: -20 to 60C Operating Humidity: 10% to 85% Dimension399(W)433(H)133(D)mm Weight (N. W.)4.25kg Unit (net) 17 LCD Color MonitorAOC 712Si 5 2. LCD Monitor Description The LCD MONITOR will contain a power board and key board. The panel module will contain panel control logic, brightness control logic, CCFL backlight, signal processing, main control and DDC etc. The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage. AC-IN 100V-240V PWPC board (Include: adapter, inverter) Flat Panel and CCFL backlightPanel (Include: main board) RS232 Connector For white balance adjustment in factory mode HOST Computer CCFL Drive. Video signal, DDCMonitor Block Diagram Keyboard 17 LCD Color MonitorAOC 712Si 6 3. Operating Instructions 3.1 General Instructions Pressthepowerbuttontoturnthemonitoronoroff.Theothercontrolbuttonsarelocatedatfrontpanelofthe monitor. By changing these settings, the picture can be adjusted to your personal preferences. The power cord should be connected. Connect the video cable from the monitor to the video card. Press the power button to turn on the monitor position. The power indicator will light up. 3.2 Control Buttons -Power Button: Press this button to turn the monitor ON or OFF. -Power Indicator: BluePower On mode. OrangeOff mode. -MENU / ENTER : Activate OSD menu when OSD is OFF or activate/de-activate adjustment function when OSD is ON or Exit OSD menu when in Brightness /Contrast Adjust OSD status. -Brightness : Adjust brightness or function adjust. -Contrast : Adjust contrast or function adjust. -Auto Adjust button / Exit: 1.When OSD menu is in active status, this button will act as EXIT-KEY (EXIT OSD menu). 2.When OSD menu is in off status, press this button for 2 seconds to activate the Auto Adjustment function. The Auto Adjustment function is used to set the HPos, VPos, Clock and Focus. OSDLockFunction: To lock the OSD, press and hold the MENU button while the monitor is off and then press power button to turn the monitor on. To un-lock the OSD - press and hold the MENU button while the monitor is off and then press power button to turn the monitor on. 1 2 3 4 5 1.Auto Adjust button / Exit2./ Contrast 3.Power Button/ LED4./ Brightness 5.MENU / ENTER 17 LCD Color MonitorAOC 712Si 7 3.3 Adjusting the Picture 1. Press the MENU-button to activate the OSD window. 2.Presstoselectthedesiredfunction.Oncethedesiredfunctionishighlighted,presstheMENU-buttonto activate it.If the function selected has a sub-menu, press < or > again to navigate through the sub-menu functions.Once the desired function is highlighted, press MENU-button to activate it. 3. Press < or > to change the settings of the selected function. 4. To exit and save, select the exit function. If you want to adjust any other function, repeat steps 2-3. Main Menu Item Main Menu Icon Sub Menu Item Sub Menu Icon Description Contrast Contrast from Digital-register. Luminance Brightness Backlight Adjustment Focus Adjust Picture Phase to reduce Horizontal-Line noiseImage Setup Clock Adjust picture Clock to reduce Vertical-Line noise. H. Position Adjust the horizontal position of the picture. Image Position V. Position Adjust the vertical position of the picture. WarmN/ARecall warm Color Temperature from EEPROM. CoolN/ARecall cool Color Temperature from EEPROM. User / Red Red Gain from Digital-register. User / Green Green Gain Digital-register. Color Temp. User / Blue Blue Gain from Digital-register. 17 LCD Color MonitorAOC 712Si 8 YesN/A Auto adjust the H/V Position, Focus and clock of picture Auto Config NoN/ADo not execute Auto config return to main menu. H. Position Adjust the horizontal position of the OSD. V. Position A