《AOC193Sw液晶维修手册电路图（英文版）.doc》由会员分享，可在线阅读，更多相关《AOC193Sw液晶维修手册电路图（英文版）.doc（71页珍藏版）》请在三一办公上搜索。
1、Service ServiceService Horizontal Frequency 30- 83 kHz TABLE OF CONTENTS Description Page Description Page 5.2. Electrical Block Diagram.156. Schematic.176.1 Main Board.176.2 Power Board.237. PCB Layout.267.1 Main Board.267.2 Power Board.288. Maintainability.328.1. Equipments and Tools Requirement.3
2、28.2. Trouble Shooting.339. White-Balance,Luminance adjustment.3810. Monitor Exploded View.3911. BOM List.4012.Different Parts List58Table Of Contents.1Revision List.2 1. Monitor Specification.4 2. LCD Monitor Description.53. Operation Instruction.63.1. General Instructions.63.2. Control Buttons.63.
3、3 Adjusting the Picture.74. Input/Output Specification.104.1. Input Signal Connector.104.2. Factory Preset Display Modes.104.3. Panel Specification.115. Block Diagram.135.1 Software Flow Chart.13SAFETY NOTICE ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS AND
4、 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 SERVICINGR FOR TH UNIT WHEN SCIRevision ListVersionDateRevision HistoryTPV Model NameA00Feb.-26-07Initial releaseT95MM
5、4HBWCA2NSA01May.-14-07Add new BOMT95MM4HCWCA1NA02May.-18-07Add new BOMT95MM4DCWCA1NA03Oct.-30-07Add new BOMT95MM4HCWCA3NNImportant 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 describe
6、d 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 a
7、nd 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 possibl
8、y 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 recomm
9、ended 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. WARNINGUse of substitute replacement parts, which do not ha
10、ve 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.
11、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
12、of optical instruments with this product will increase eye hazard. TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY ORIGINAL MANUFACTURERS REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART NUMBERS IN THE PARTS LIST SECTION OF THIS SERVICE MANUAL. Take care during handling the LCD modu
13、le 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
14、 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 wi
15、th 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.)1. Monitor Specification ItemsDescriptionLCD PanelDriving systemTFT Color LCDSize48 cm (19.0”)PanelM190A1
16、-L02Display area414.36 (H) x260.45 (V) (19.0) Pixel pitch0.285mm(H) x 0.285mm(V)Viewable angle170 (H) 160 (V)Response time (typ.)5msBrightness300cd/mContrast850:1Input Connector15-pin D-SubInputVideoAnalog:0.7Vp-p(standard),75 OHM, PositiveSync. TypeH/V TTL H-Frequency30kHz 83kHzV-Frequency55-75HzDi
17、splay Colors16.2MDot Clock135MHzResolution1440x 900 60HzPlug & PlayVESA DDC2BTMPower ConsumptionON Mode36W Switch off Mode1WOFF Mode2WPower Source100240VAC,5060HzEnvironmentalConsiderationsOperating Temp: 5C to 35C Storage Temp.: -20C to 60COperating Humidity : 10% to 85%Storage Humidity: 15% to 90%
18、Dimension440(mm)356(mm)215(mm) (W HD)Weight (N. W.)4.0kg Unit (net)2. LCD Monitor Description The LCD Monitor will contain a main board, a power board, which house the flat panel control logic, brightness control logic and DDC. The power board will provide AC to DC Inverter voltage to drive the back
19、light of panel and the main board chips each voltage.Video signal, DDCPower BoardFlat Panel and CCFL backlightMain Board RS232 ConnectorFor white balance adjustment in factory modeHost ComputerCCFT Drive.AC-IN110V -240VMonitor Block Diagram Adapter Board3. Operation Instructions 3.1 General Instruct
20、ions Press the power button to turn the monitor on or off. The other control knobs are located at front panel of the 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 vide
21、o card.- Press the power button to turn on the monitor. The power indicator will light up.3.2 Control Buttons Power Button: Press this button to switch ON/OFF of monitors power.MENU / ENTER: Active OSD menu or function adjust confirm or Exit OSD menu when in Brightness/Contrast OSD status.Contrast:
22、Adjust contrast or function adjust.Brightness:Adjust brightness 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 over 2 seconds to activate the Auto Adjustment functi
23、on.The Auto Adjustment function is used to set the HPos, VPos, Clock and Focus. Power Indicator:Blue Full Power mode.Orange Active-off mode.OSD Lock Function: 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 O
24、SD - press and hold the MENU button while the monitor is off and then press power button to turn the monitor on.NOTESDo not install the monitor in a location near heat sources such as radiators or air ducts, or in a place subject to direct sunlight, or excessive dust or mechanical vibration or shock
25、.Save the original shipping carton and packing materials, as they will come in handy if you ever have to ship your monitor.For maximum protection, repackage your monitor as it was originally packed at the factory.To keep the monitor looking new, periodically clean it with a soft cloth. Stubborn stai
26、ns may be removed with a cloth lightly dampened with a mild detergent solution. Never use strong solvents such as thinner, benzene, or abrasive cleaners, since these will damage the cabinet. As a safety precaution, always unplug the monitor before cleaning it.3.3 Adjust the Picture 1. Press the MENU
27、-button to activate the OSD window.2. Press or to navigate through the functions. Once the desired function is highlighted, press the MENU-button to 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 highlight
28、ed, 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 ItemMain Menu IconSub Menu ItemSub Menu IconDescriptionAdjust RangeReset ValueLuminan
29、ceContrastContrast from Digital-register.0-100Recall Cool Contrast ValueBrightnessBacklight Adjustment0-100Recall Cool Brightness ValueImage SetupFocusAdjust Picture Phase to reduce Horizontal-Line noise0-100Do Auto ConfigClockAdjust picture Clock to reduce Vertical-Line noise.0-100Do Auto ConfigIma
30、ge PositionH. PositionAdjust the horizontal position of the picture.0-100Do Auto ConfigV. PositionAdjust the vertical position of the picture.0-100Do Auto ConfigColor Temp.WarmN/ARecall warm Color Temperature from EEPROM.N/AThe Color Temperature will be set to Cool.The User R/G/B value (default is 1
31、00) will not be Modified by Reset function.CoolN/ARecall cool Color Temperature from EEPROM.N/AsRGBN/ARecall sRGB Temperature from EEPROM. N/AUser / RedRed Gain from Digital-register.0-100User /GreenGreen Gain from Digital-register.0-100User / BlueBlue Gain from Digital-register.0-100Auto Config(Ana
32、log-Only Model)YesN/AAuto Adjust the H/V Position, Focus and Clock of picture.N/AN/ANoN/ADo not execute Auto Config, return to main menu.N/AN/AOSD SetupH. PositionAdjust the horizontal position of the OSD.0-10050V. PositionAdjust the vertical position of the OSD.0-10050OSD TimeoutAdjust the OSD time
33、out.10-12010LanguageLanguageN/ASelect the language you likeN/AThe Language will be set to English.InformationInformationN/AShow the resolution, H/V frequency and input port of current input timing.N/AN/AResetYesN/AClear each old status of Auto-configuration and set the color temperature to Cool.N/AN
34、/ANoN/ADo not execute reset, return to main menu.N/AN/AExitN/AN/AExit OSDN/AN/A4. Input/Output Specification 4.1 Input Signal Connector PinSignalPinSignal1Red Video95V2Green Video10Detect cable3Blue Video11Monitor Ground4GND12DDC-Serial Data5GND13H- Sync6GND-R14V- Sync7GND-G15DDC-Serial Clock8GND-BV
35、GA connector layout4.2. Factory Preset Display Modes4.3. Panel Specification M190A1-L02 is a 19” wide TFT Liquid Crystal Display module with 4 CCFL Backlight unit and 30 pins 2ch-LVDS interface. This module supports 1440 x 900 WXGA+ mode and can display 16.2M colors. The inverter module for Backligh
36、t is not built in.4.3.1 General Feature- Super Wide viewing angle.- Super High contrast ratio- Super fast response time- High color saturation- WXGA+ (1440 x 900 pixels) resolution- DE (Data Enable) only mode- LVDS (Low Voltage Differential Signaling) interface- RoHS Compliance 4.3.2 Mechanical Info
37、rmation4.3.3 Optical Characteristics Test ConditionsOptical Specification5. Block Diagram5.1 Software Flow Chart12NY5YN10YN12YN7YN64389141113YN15YN161719YN18REMARK:1) MCU initialize.2) Is the EEprom blank? 3) Program the EEprom by default values.4) Get the PWM value of brightness from EEprom. 5) Is
38、the power key pressed? 6) Clear all global flags.7) Are the AUTO and SELECT keys pressed? 8) Enter factory mode.9) Save the power key status into EEprom.Turn on the LED and set it to green color.Scalar initialize.10) In standby mode? 11) Update the lifetime of back light.12) Check the analog port, a
39、re theyre any signals coming? 13) Does the scalar send out an interrupt request? 14) Wake up the scalar.15) Are there any signals coming from analog port? 16) Display No connection Check Signal Cable message. And go into standby mode after the message disappear.17) Program the scalar to be able to show the coming mode.18) Process the OSD display.19) Read the keyboard. Is the power key pressed? 5.2 Electrical Block Diagram5.2.1 Main Board MCUMTV512GMV (U601)Scalar IC TSU16AK(Include ADC, OSD)(U
