Christie Digital Systems CX67, CX50 Input Levels for experienced users only, Input Video Black

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Section 3: Operation

“crushed” nor excessively elevated. By default, the projector automatically determines the correct setting according to the type of incoming video signal:

0 IRE – Select this setting for DVD output with “enhanced black”, SECAM, most PAL standards, and Japanese NTSC.

7.5 IRE – Select this setting for most NTSC video signals.

Figure 3.15. Input Video Black

NOTE: You can override the setting for some types of video. The control is disabled for other types of video, and also for graphics sources.

Input Levels (for experienced users only)

The projector automatically optimizes input levels for all but the most unusual of sources. Before attempting an input level adjustment make sure brightness and color temperature settings are properly set. It is also recommended that you keep the White Boost option OFF (0).

Figure 3.16. Input Levels

Good RGB or input levels – that is, the drives and black levels for each of the three colors, red, green and blue – ensure that images from analog sources other than decoded video have maximum contrast without crushing black or white. By default (and when performing an Auto Setup from the Main menu), the projector automatically determines the best input levels by monitoring image content and adjusting the controls appropriately. Typically, further adjustment is not required in order to obtain proper black or whites.

AUTO INPUT LEVELS

The Auto Input Levels option is useful when an unusual source is used that may require further color temperature and/or input level adjustment. For the Auto Input Level feature to work you must use a 16-step grey scale test pattern with black on the left and white on the right.

With this option highlighted, press Enter and wait for the six remaining values in the menu to stabilize indicating the process is complete. (Figure 3.16.)

NOTE: It is recommended Contrast and Brightness settings remain at their default when adjusting Auto Input Levels.

RPMX/CX50/CX60/CX67 User’s Manual 3-15

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Contents Table of Contents For detailed product specifications, see Section Key FeaturesIntroduction Vertical configuration ComponentsHow the projector works For Rpmx For CX50/CX60/CX67Purchase Record and Servicing Purchase RecordPage Source Source SetupConnections Analog VGA Connector Source Setup Composite Video Loop Through Video Loop ThroughIf using a computer Single Projector Serial Port Connections10. Multiple Projector RS-232 Connection Power Connection RequirementsPage Projector Overview OperationProjection Head Module Normal LED Status Using the Keypad Keypad CommandsFAN LED will no longer be illuminated Refer to 3.7 Using Multiple Projectors for more details Adjusting Slidebars Accessing the Main MenuAdjusting an Image To save or Exit toPresentation OptionsResize Presets Size and Position MenuTiled Resize Presets No ResizingVert Stretch SizePixel Tracking Pixel phase PositionContrast Color SetupBrightness 12. Gamma options 13. Creating a Custom Color Temperature Video OptionsInput Levels for experienced users only 15. Input Video BlackBlack Levels & Input Drives White Boost Mode Memory StatusInput Select Image Orientation LanguageMenu Preference CommunicationTiling Setup 25. Assigning Projector ID27. Expanded Options in Resize Presets Color and UniformityDiagnostics & Service Choosing a Lamp Power Lamp MenuSystem Status Auto Setup Optimizes Sets to DefaultUsing Multiple ProjectorsWhen matching screens in a display wall, do the following Preliminary SetupDefining the Size Display WallPrimary Color Adjustment Enable Primary Color AdjustmentAdjust Color Temperature Error Codes Status LED CodesDMD error Error, Lamp shut offLamp strike failure Lamp failure, BallastPage Maintenance Power cord AttachmentsCleaning and Maintenance Replacement LampReplacing Keypad BatteriesAccess the lamp module Remove the lampClose lamp door and record new lamp serial number Install a new lampSee also, 3.4 The Lamp Menu in Section Projection Lens Focus For Rpmx 38-GFX101-01, CX67 38-GFX005-01 FigureTroubleshooting SymptomProjector does not power on when the Power key is pressed Projector is on, but no image is displayedSymptom The display is jittery or unstable… Symptom The display has suddenly frozen…Display is faint… Display is reversed and/or upside down…Colors in the display are inaccurate… Display is not sharp or clean…Display is noisy… Specifications Control Signal Infrared IR Control Input Picture Offset Adjustment Range Range of MotionDVI Input RS-232Power Requirements Viewing AngleLamps LensWeight including adjuster Size includes lens, adjuster and mounting railsFor RPMX-100U 38-GFX101-01 For RPMX-100UFor RPMX-100U For CX50-100U 38-GFX003-xxFor CX60-100U 38-GFX004-xx38-GFX006-xx For CX67-100URegulatory Compliance ANSI/UL 60950 3rd Edition Specifications Glossary Color Temperature Display SettingCheckbox Color ShiftInput Signal Help ScreenHorizontal Frequency Horizontal OffsetPixel Phase Resolution lensResolution projector Ntsc VideoSource Setup SwitcherRGB Video RS-422Variable Scan Vertical FrequencyVertical Offset Video DecoderAcceptable Signal Types Acceptable RGB Input Signal Timing RPMX/CX50/CX60/CX67 User’s Manual B-3 Page Keypad Reference Page Serial Communication Cables Page Menu Tree Page Input Levels IndexAbout Pixel Phase Power Level Switching