Contrast modulation option | Barco R9000740 instruction

APPENDIX D : CONTRAST MODULATION

Contrast modulation (option)

Today multi-screens are very popular for many applications e.g. simulation busi- ness. In these installations, the goal is to obtain a continuous matched image, forming one homogeneous view. The viewer wants to see an overall light output uniformity.

The laws of physics applied to projection optics dictate that the center of the projected image will be brighter than the corners; this phenomenon is normally referred to as 'corner fall off'. Secondly, due to the normal off-axis projection of the red and blue images, CRT projection displays a phenomenon referred to as 'color shift', whereby one side of the screen is reddish an the other blueish.

Picture without contrast modulation

Picture with contrast modulation

APPENDIX D : CONTRAST MODULATION

R5975238 BARCOVISION 701 MULTIMEDIA 070497		D-1
R5975238 BARCOVISION 701 MULTIMEDIA 070497		D-1

Image 151

Barco R9000740 owner manual Contrast modulation option, Appendix D Contrast Modulation

Contents

R9000740 Page Table of Contents Guided Adjustment Mode MESSAGES, Warnings and Failures Orbiting Kit Safety Instructions Safety Instructions OWNER’S Record Installation InstructionsPart Number SER. Number Dealer Safety Instructions Mains lead Power cord with CEE 7 plug On safety Power cord with Ansi 73.11 plug On servicing On repacking Safety Instructions Location and Function of Controls Location and Function of Controls RS232OUT Rear Panel Terminology Front Panel Terminology Control panel terminology a. The local keypad Getting accessRCU control panel terminology Function ControlsLocation ADJ. adjust key, to enter or exit the adjustment mode Power Connection Power Mains Connection Switching on/off Power mains cord connection Peripheral Equipment Connection Source ConnectionsConnections Source No Projector input Press digit button Signal input connection to the projector Video input selection Connecting a Composite Video source EN ER AL a CC ES S GE NER AL a CCE SS Connecting a RGB Analog source with composite sync Rgbs or RGsB input selection RGB3S or RG3sB input selection Connecting a RGB Analog source with Tri-level sync YYB-YS orR-YYsB-Y input selection Connecting a Component source N E R a L a C C E S S Connecting a Component source with Tri-level sync YYB-Y3S or R-YY3sB-Y input selection Data communications Remote control Peripheral Equipment Connecting a Rcvds 05 switcher to the projectorConnecting a VS05 switcher to the projector Connecting an IR Remote Receiver to the projector Controlling Battery installation in the RCU Controlling RCU used in a hardwired configuration Using the RCU How to display a projector address?Hardware set up of the projector address How to control the projector Input selection Source No Projector input Press digit button How to program an address into the RCU? Our c e = 15 k Hz = 50 Hz R N I N G I G H T N E S S Brightness Control Color Saturation Control Contrast ControlN T R a S T L O R Sharpness Control Tint ControlA RP N E S S Controlling Start UP of the Adjustment Mode Start UP of the Adjustment Mode Only for qualified Technician Entering the adjustment modeInstallation Random Access Service Adjustment Guided Access menu Adjustment mode Start UP Adjustment ModeDJ U S TM E NT M OD E O N G S S W O R D S S W O R D M P O S E Guided Adjustment Mode Guided Adjustment Mode Start up of the guided adjustment mode I D E D a D J U S T M E N T M O D E Overview flowchart Guided Adjustment procedure Selecting Setup Pattern GU IDE D a DJU STM ENT MO DE Internal Cross Hatch PatternGuided Internal # Pattern PIC Ture TUN ING Picture tuningSync Fast/Slow toggle Line Doubler option C T U R E T U N I N G Enhanced blue ON/OFF V Shift Raster Centering on Green CRT Faceplate Correct raster position Wrong raster position Shifting Red and Blue on Green Left-Right East-West AdjustmentsEFT-RIGHT E/W Vertical Centerline Skew Adjustment Vertical Centerline Bow Adjustment Left Keystone Adjustment Right Keystone AdjustmentRight Bow Adjustment Horizontal Size Adjustment Left Bow Adjustment To P -BO TTO M Top-Bottom North-South Adjustments Horizontal Centerline Bow Adjustment Horizontal Centerline Skew AdjustmentTop Keystone Adjustment Bottom Keystone Adjustment Top Bow AdjustmentBottom Bow Adjustment Vertical Linearity Adjustment Size-linearity AdjustmentZ E-L I N E AR I T Y Vertical Size Adjustment Horizontal Phase Adjustment N V E R G E N C E Convergence Adjustment A N K I N G Blanking Adjustment Bottom blanking adjustment Top blanking adjustment Guided Adjustment Mode Right blanking adjustment Custom White Balance Color BalanceCustom Black Balance Random Access Adjustment Mode Random Access Adjustment Mode DJ U S TM E NT M OD E Starting up the random access adjustment mode N D O M a C C E S S J U S T ME N T MO D E Overview flowchart Random Access Adjustment mode A N K I N G T E R N a L # P a TT E R N AN D OM AC C ES S DJ US TM E NT M OD E Random access adjustment mode selection menu Mode Random Access Adjustment Custom Color Balance Sync Fast/Slow Adjustment TUN Enhanced Blue On/Off AdjustmentLine Doubler Ture AN D OM AC C ES S CO L or SEL E CTDJ US TM E NT M OD E O M E T R Y Enter Horizontal Phase Adjustment Correct by pushing Control disk to the right A R S E S H I F T Raster Shift Adjustment Press Exit to return to the Geometry menu F T -R I G H T F T -R I G H T Access Adjustment Mode Between 0 and 100. See next Example H Certerline Bow All adjustment are indicatedTOP BOT TOM Control disk down Control disk up Horizontal Size Adjustment Vertical Linearity Adjustment Vertical Size Adjustment Left blanking Right blanking Correct by pushing the control disk up or down E E N O N L Y Re e n ima g e Service Mode Service Mode J U S T M E N T M O D E Starting up the Service mode Overview flowchart Service mode Identification Total RUN Time Memory Management Common Settings I2C DiagnosticsProjector Set-up Identification Total Run Time Service Change Projector Address Change Baudrate Change password A N G E P a S S W O R D Identification Total RUN Time Change PasswordChangeLanguage English Españ OL Francais Deutsch Changebaudrate Change Projector Address Identification Power up mode BARCOlogo Mode on Size Small Background on Orbitting on Copy a Block Delete a Block Delete ALL Blocks Common Settings I2C DiagnosticsCopy a block Projector SET-UP P Y M O D E Deletion of blocksP Y B L O C K LE T E M O D E Deleting block by blockEL E T E B L OC K EL ET E a L L BL O C K S All settings to midpositionDeletion of all blocks Copy a Block Delete a Block ALL Settin GS to M ID Posi Tion Undo all settings to midposConvergence mid Convergence MID GR Convergence MID C O N VER G EN C E M ID ALL Settings to Midpos R & B Convergence MIDUndo R & B convergence mid Green convergence mid Undo green convergence mid G2 Adjustment CRT RUN in Cycle Projector Warm UPProjector SET-UP Memory Management CRT RUN in Cycle Projector Warm UP G2 AdjustmentF E T Y T I C E SK O F E LE C T R I C AL S H O C K CRT run in cycle T R U N in C YC LE Toggle Option on or OFF G2 Adjustment CRT RUN in CycleProjector warm up Option on Decoder Projector SET-UP Memory Management Common Settings Service Mode MESSAGES, Warnings and Failures MESSAGES, Warnings and Failures Source MESSAGES, Warnings and Failures InputProjector Address Input no Longer Available Invalid Key entryInput se- lector not available Wait FailureIris Options IR receiver Hardwired RCU Projector Control softwareOptions Shield Conductor IR Receiver D9-D9 communication cable VS05 Soft edge matching kit Orbiting KitContrast modulation kit Appendix a Battery Replacement in the RCU Battery replacement in the RCU Appendix a Battery Replacement in the RCU Orbiting option Orbiting mode toggle switchesAppendix B Orbiting S T E R O R B I T I N G Master/slave toggleOrbiting ON/OFF toggle only in Master Orbiting Orbiting Appendix B Adjustment procedure stand alone projectorOrbiting speed toggle only in Master Orbiting Orbiting alignment R I Z O N T a L BI T AM P L J US T D E V I ATI O N Adjustment procedure multiple projector installations Appendix B Orbiting Appendix C Soft Edge Matching Soft edge matching option S S Basic concept Highlight H Test Mode and press Appendix C Start positionSoft Edge Matching Matching Left image areaAppendix C Soft Edge Stop position Right image area Vertical test mode F T E D G E R R E C T I O N Top soft edge area adjustment Edge Matching Bottom soft edge area adjustment Appendix D Contrast Modulation Contrast modulation option Enter selects the Contrast Modulation menu Modulation Contrast Modulation Contrast equalisation Color ShiftAppendix D R TI C a L Contrast edge correction hot spot N T R a S T G E C or R E C T I O N Appendix D Contrast Modulation 32 adjustment blocks are in use. What to do? Adjustment Blocks memory blocksAppendix E Adjustment Blocks T E N T I O N Projector equipped with Rcvds or VS05 Source Numbers 90 Source numbers 90Appendix F Appendix F Source Numbers 90 V D S