Manuals / Barco / TV and Video / Home Theater Screen

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

Models: R9000740

1 161

Download 161 pages 41.01 Kb

Page 151

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 InstructionsOWNER’S Record Installation InstructionsPart Number SER. Number Dealer Safety Instructions Mains lead Power cord with CEE 7 plug On safetyPower cord with Ansi 73.11 plug On servicing On repacking Safety Instructions Location and Function of Controls Location and Function of ControlsRS232OUT Rear Panel TerminologyFront 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 ConnectionSwitching on/off Power mains cord connectionPeripheral Equipment Connection Source ConnectionsConnections Source No Projector input Press digit button Signal input connection to the projectorVideo input selection Connecting a Composite Video sourceEN ER AL a CC ES S GE NER AL a CCE SS Connecting a RGB Analog source with composite syncRgbs or RGsB input selection RGB3S or RG3sB input selection Connecting a RGB Analog source with Tri-level syncYYB-YS orR-YYsB-Y input selection Connecting a Component sourceN E R a L a C C E S S Connecting a Component source with Tri-level syncYYB-Y3S or R-YY3sB-Y input selection Data communications Remote controlPeripheral Equipment Connecting a Rcvds 05 switcher to the projectorConnecting a VS05 switcher to the projector Connecting an IR Remote Receiver to the projectorControlling 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 projectorInput 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 ControlColor 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 ModeOnly for qualified Technician Entering the adjustment modeInstallation Random Access Service Adjustment GuidedAccess menu Adjustment modeStart 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 EGuided Adjustment Mode Guided Adjustment ModeStart 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 procedureSelecting Setup Pattern GU IDE D a DJU STM ENT MO DE Internal Cross Hatch PatternGuided Internal # PatternPIC Ture TUN ING Picture tuningSync Fast/Slow toggle Line Doubler optionC T U R E T U N I N G Enhanced blue ON/OFFV Shift Raster Centering on Green CRT FaceplateCorrect 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 AdjustmentLeft Keystone Adjustment Right Keystone AdjustmentRight Bow Adjustment Horizontal Size Adjustment Left Bow AdjustmentTo P -BO TTO M Top-Bottom North-South AdjustmentsHorizontal 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 AdjustmentA N K I N G Blanking AdjustmentBottom blanking adjustment Top blanking adjustmentGuided Adjustment Mode Right blanking adjustmentCustom White Balance Color BalanceCustom Black Balance Random Access Adjustment Mode Random Access Adjustment ModeDJ U S TM E NT M OD E Starting up the random access adjustment modeN D O M a C C E S S J U S T ME N T MO D E Overview flowchart Random Access Adjustment modeA 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 menuMode Random Access AdjustmentCustom Color Balance Sync Fast/Slow AdjustmentTUN Enhanced Blue On/Off AdjustmentLine Doubler TureAN 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 AdjustmentCorrect by pushing Control disk to the right A R S E S H I F T Raster Shift AdjustmentPress Exit to return to the Geometry menu F T -R I G H T F T -R I G H T Access Adjustment ModeBetween 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 ModeJ U S T M E N T M O D E Starting up the Service modeOverview flowchart Service mode Identification Total RUN Time Memory Management Common Settings I2C DiagnosticsProjector Set-up IdentificationTotal Run Time ServiceChange Projector Address Change Baudrate Change passwordA N G E P a S S W O R D Identification Total RUN Time Change PasswordChangeLanguage English Españ OL Francais DeutschChangebaudrate Change Projector AddressIdentification Power up modeBARCOlogo Mode on Size Small Background on Orbitting onCopy a Block Delete a Block Delete ALL Blocks Common Settings I2C DiagnosticsCopy a block Projector SET-UPP 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 BlockALL Settin GS to M ID Posi Tion Undo all settings to midposConvergence mid Convergence MID GR Convergence MIDC O N VER G EN C E M ID ALL Settings to Midpos R & B Convergence MIDUndo R & B convergence mid Green convergence midUndo 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 LEToggle Option on or OFF G2 Adjustment CRT RUN in CycleProjector warm up Option onDecoder Projector SET-UP Memory Management Common SettingsService Mode MESSAGES, Warnings and Failures MESSAGES, Warnings and FailuresSource 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 ReceiverD9-D9 communication cable VS05Soft edge matching kit Orbiting KitContrast modulation kit Appendix a Battery Replacement in the RCU Battery replacement in the RCUAppendix 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 OrbitingAppendix B Adjustment procedure stand alone projectorOrbiting speed toggle only in Master Orbiting Orbiting alignmentR 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 installationsAppendix B Orbiting Appendix C Soft Edge Matching Soft edge matching optionS S Basic conceptHighlight 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 adjustmentEdge Matching Bottom soft edge area adjustmentAppendix D Contrast Modulation Contrast modulation optionEnter selects the Contrast Modulation menu ModulationContrast Modulation Contrast equalisation Color ShiftAppendix D R TI C a L Contrast edge correction hot spotN 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 VS05Source Numbers 90 Source numbers 90Appendix F Appendix F Source Numbers 90 V D S