Runco VX-4C, VX-6C manual Selected Gamma Curves

Page 49

OPERATION

Gamma Curve

 

 

 

 

 

 

 

1.8

 

 

 

 

 

 

 

2.2

 

 

 

 

 

 

 

 

2.5

 

 

 

 

 

 

 

 

 

 

 

 

Enhanced

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Selected Gamma Curves

THE DEFAULT SETTING OF 2.2 is a normal and smooth gamma curve rec- ommended for virtually all sources, producing good contrast and smooth gray transitions without distorting colors.

THE ENHANCED SETTING elevates middle gray levels compared to “Default”, and provides a more gradual rolled-off transition to maximum white. Together, these differences can improve the apprearance of many kinds of images.

2.2 Enhanced 1.8 2.5 1.0

THE 1.8 SETTING elevates low gray levels compared to the “Default” and “3.2” settings. In high amibient light conditions, details can be seen in the dark parts of the image that would oth- erwise be difficult to perceive.

THE 2.5 SETTING results in a darker image with higher contrast. The gamma curve more closely matches the official standard for PAL and SECAM video signals.

THE 1.0 SETTING is a straight, linear transition from black to white. For normal source sig- nals, it results in a picture of low contrast with highly elevated low-and mid-level grays. It should be used only with sources that have their own pre-applied gamma control.

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Image 49
Contents VX-4c and VX-6c Page Table of Contents Page How The Projector Works? IntroductionIntroduction Purchase Record and Servicing ComponentsConnect the Line Cord to AC Power Quick SetupPosition the Projector Connect a SourceInstall the lens cap Installing The LensUnplug the projector Loosen 3 screwsRotate the lens barrel slightly Align zoom gear ring to access 3 screwsRotate Slightly Remove Lens Assembly Pull lens assembly outInstall new lens assembly OrientationAdjust Image Motorized Models Adjust ImageMotorized Lens Adjustments Lifting Installation ConsiderationsAdditional Considerations 720p Throw Distances Placement Section960p 1024pCalculating Throw Distance Maximum Vertical Offsets Fixed Lenses Vertical & Horizontal PositionMaximum Vertical Offsets Zoom Lenses Mounting Maximum Horizontal Offset ALL LensesSpecial Mounting Horizontal and Vertical Tilt RangesFolded Optics Rear Connector PanelSource Connections Connecting RGB Input RGB SignalsIndependent Keypads and Projectors Keypad Protocols and ConversionStep Remote Keypad Protocol IR or Wired KeypadOpening the Keypad Set the JumpersLocating and Setting the Jumpers Converting a Keypad Shortcut MethodAndy Siedschlag ISF 3C CalibrationInformation Projector Basics OverviewReading the Status LEDs OperationKeypad Commands Wired Remote OptionalPower ON/OFF IR RemoteMemory Bank InputArrow Keys ExitColor VolumeTint DetailShutter Optional PositionMute Function KeyHelp OSD On-screen displayTest Runco Digital Home Navigating the MenusCinema Menu On-line HelpUsing Slidebars and Other Controls Accessing General Help TopicsTime-outs To save or To cancel. When you are done, press Editing Text Example of Pull-Down ListEntering Text Editing Numerical Values Using Inputs and Memory BanksSelecting an Input Creating a New Memory Bank Automatic What Memory Banks Are Defined So Far? Copying a Memory Bank Copying or Deleting Memory BanksDeleting a Memory Bank Editing a Memory BanksOperation Load Default Adjusting the ImageScaling Parameters Scaling Parameters MenuFine V Dots Short CUT Press Image Adjustments Menu Image AdjustmentsShift Short CUT Press Blanking Top, Bottom, Left or RightContrast Short CUT Press Signal TypeBrightness Short CUT Press SharpnessSet Color Balance Color BalanceGamma Curve Selected Gamma Curves Gamma CurveOSD Settings Menu IR and Serial Setup Menu Show Adjust BarDisplay M. Bank List Show MessageFront IR Receiver / Back IR Receiver Wired KeypadTest Pattern Menu Test PatternsMenu Options Video TerminationSubmenu for Menu Options Installation Menu Test Patterns DMD EnableDMD Odd Pixel Advanced Color TemperatureDMD Odd Pixel Menu Operational Parameters Menu Color Balance Setup Menu Color Balance SetupSet Color Balance Presets and FactoryPresetsLamp Adjust submenu Lamp AdjustOperation Recording the New Lamp Serial Number Lamp AdjustInput Signal Error Error ConditionsInvalid User Entry Other Signal Error Messages No SignalSystem Warnings / Errors Bad SyncStatus LED Codes System ErrorsSystem Error Codes Projector Location MaintenanceUse only lamps supplied by Runco Lamp and Filter ReplacementVentilation CleaningServicing LensReplacing Keypad Batteries CaseReplacing Keypad Batteries How Old is The Lamp?Cause / Remedy TroubleshootingSymptom The display is jittery or unstable Symptom The power is on but the lamp is notSymptom The display is faint Symptom The display appears compressed or stretched… Symptom The display is reversed and/or upside-down…Symptom The display is not sharp or clean… Symptom The display is not rectangular… Symptom Colors in the display are inaccurate…Symptom The display is noisy… Specifications Specifications VHD Ultra Controller Manual Remarque Safety Tips Introduction Front and Rear Panel Descriptions Rear Panel Power Input Remote Control Description Quick SET-UP Guide Menu Description and Navigation White Yellow Cyan Green Magenta Red Blue Page Installation Menu Screen Type Blanking BlankingAspect Ratios Active image area Actual screen area Blanked cut off Areas Dimensions RS-232 Communications Parameter min/max Value stored? RS-232 CommandsCommand VHD Ultra Specifications Ambient Light Rejection Active Line TimeAnalog Video Aspect RatioDisplay Setting Color TemperatureCheckbox Color ShiftHelp Screen Input SignalHorizontal Frequency Horizontal OffsetResolution lens Pixel PhaseResolution projector MenuRGB Video Source SetupRS-232 RS-422Variable Scan Throw DistanceVertical Offset Video DecoderKeypad Reference Menu Tree Appendix C Page RUMA-010450