Christie Digital Systems Ds+60 Users Manual
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Section 3: Operation Christie DS+60 User’s Manual 3-27 Table 3.3. Regions and Video Standards: Summary StandardWhere Used (SUBJECT-TO-CHANGE) NTSC N. America and Japan NTSC 4.43 A tape-only standard for partially-translated hybrid signals PAL Most of Europe, China, Australia, some of S. America, some of Africa PAL-M Brazil PAL-NC Argentina, Chile, other Latin American countries PAL 60 SECAM France, Eastern Europe, most of Africa NOTE: Generally, use “Auto” for all instances EXCEPT: 1) a poor quality input signal or 2) a black-and-white video signal. In order to detect and display such signals, select the relevant standard from the list. INPUT VIDEO BLACK — This control compensates for incoming elevated black levels present in certain video signals, and ensures that blacks in the display are neither crushed (i.e., where dark grays appear black) nor excessively elevated (i.e., where blacks appear dark gray). By default, the projector automatically determines the best setting according to the type of incoming video signal: • 0 IRE – Used for DVD output with “enhanced black”, SECAM, most PAL standards, and Japanese NTSC. • 7.5 IRE – Used for most NTSC video signals. For some types of video, you can override the setting. The control is disabled for other types of video (and all graphics sources). Generally, if black appears crushed when brightness = 50, choose “0 IRE”. If black appears excessively elevated, use “7.5 IRE”. COLOR — This slidebar adjusts the color saturation level, i.e. the amount of color in a video image. Lower settings produce less saturated colors — for example a setting of “0” produces a black and white image. If the color level is too high, colors will be overpowering and unrealistic. TINT — This slidebar adjusts the red/green color hue for true color reproduction of video signals connected to Input 3 or 4. For best results, adjust tint while displaying an external color bars test pattern—otherwise, it is recommended that tint remain at its default setting. DECODER LUMA DELAY – This control affects any incoming composite or S-video signal, delaying the luma signal (intensity) in relation to the chroma (color). In the image, increasing the luma delay will move luma (seen as a shadow where colors overlap) to the right slightly, with colors remaining in place. Decreasing this delay will move the shadow slightly to the left. If necessary for your current source, adjust so that no shadows occur with adjacent colors.
Section 3: Operation 3-28 Christie DS+60 User’s Manual Input Levels — SUBMENU NOTES: 1) Because the projector automatically optimizes input levels for all but the most unusual of sources, it is recommended that only experienced users use the Input Levels submenu. 2) Before beginning, check that overall contrast and brightness settings are near 50 and that color temperature is properly set up on an internal grayscale test pattern. 3) There must be at least 2 consecutive white pixels present in the image for proper “Auto Input Level” function. Leave this control off after use. Good RGB or input levels— that is, the drives and blacklevels 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 in an “Auto Setup”), the projector automatically determines the best input levels by monitoring image content and adjusting the controls appropriately—further adjustment is typically not required to obtain proper blacks or whites. NOTE: This automatic adjustment requires at least 2 consecutive white pixels in the image. Without these pixels, input levels may produce skewed colors, particularly in non- video images. However, for a very unusual source exhibiting one or more overly high blacklevels (typically caused by a noisy source causing blacklevel spikes), an experienced user may prefer to use the Input Levels menu (shown above). These adjustments, which together serve as a calibration process compensating for differences in sources and cabling, enable an experienced user to perfect the source image input levels and eliminate the “overshoot” and “undershoot”. Note that Input Levels are of limited use with digital signals, but do offer some ability to tweak poorly mastered source materials. AUTO INPUT LEVEL – Keep off for virtually all sources (default). Temporarily enter a checkmark only if you are an experienced user and you have an unusual source that you feel needs further color temperature and/or input level adjustment. After entering a checkmark, wait for the six slidebar values to stabilize, then delete the checkmark and exit. This compensates for incoming out-of-range drives (white) and blacklevels (black) that would cause “crushing” of light and dark colors in the image.
Section 3: Operation Christie DS+60 User’s Manual 3-29 BLACKLEVELS AND DRIVES - To check your image and adjust these controls: 1. Make sure overall “Contrast” and “Brightness” settings are both set to near 50. NOTE: Not required for “Auto” adjustment. • Contra st= 50 (approx.) • Bright= 50 (approx.) 2. Check the color temperature setup using an internal grayscale test pattern, making sure to obtain a neutral grayscale. NOTE: Not required for “Auto” adjustment. 3. Confirm that you are using an analog source not connected to INPUT 3 or INPUT 4, as Input Levels are not applicable for digital sources or sources going through the decoder. A grayscale is recommended. 4. If the blacks and/or whites appear OK, input levels do not need adjustment. If black levels are too high (and/or whites are too low, which is rare), you likely have a noisy source that is producing skewed input levels. Continue with Step 5. 5. Temporarily enable “Auto” in the Input Levels submenu. Wait for all 6 values to stabilize. Alternatively, do not use “Auto”—reduce blacklevels manually instead. Judge by eye and change one or more of the six levels as necessary to obtain proper blacks and whites. You may want to see only a certain color while adjusting—use the “Color Enable” option (described below). 6. Delete the “Auto” checkmark and leave the Input Levels menu. AUTO COLOR ENABLE – When a checkmark is present, selecting a specific blacklevel or drive to adjust will automatically enable the corresponding color in the display. Delete the checkmark to see all colors. CLAMP LOCATION – This option (formerly known as sync tip clamping) can brighten the image produced from certain high- resolution high-frequency graphic sources. For almost all sources, the best clamp location is automatically selected by the projector. Use the normal Back Porch location if the image is either sufficiently bright or overly bright. Select Sync Tip if the image appears unusually dim, if there are horizontal streaks across the image, or if there is significant color drift. This moves the clamping pulse from the normal back porch location (which is likely too short) to the tip of the horizontal sync pulse. Tri Level is typically recommended for an HDTV source where the back porch is also short. NOTE: Clamp Location is not used for video sources or any RGB source with sync information included on the video (e.g., sync-on-green). Use Tri Level instead. COLOR ENABLE – Select which color or colors you want to see in the display, useful while working with color temperature white levels or input levels. NOTES: 1) Input levels apply for the current source only, but for any color temperature used. 2) Assuming that color temperature has been set up based on the internal test patterns, you can then set up input levels for a given source so that it matches the color temperature of the internal test patterns.
Section 3: Operation 3-30 Christie DS+60 User’s Manual PEAK DETECTOR – The Peak Detector is a fast method for defining individual input levels, and can improve the accuracy of input levels set by the Auto Input level function. Enabling the Peak Detector activates a special operating mode for detecting only pixels that are considered black or white—all other levels are displayed as a mid- level gray. When used with a smooth grayscale pattern in which black and white are known to be at opposite edges of the image, you can watch these isolated areas while adjusting individual blacklevels and input drives until both black and white edges are just visible and distinguished from neighboring pixels. Images from this source will then display correct blacks and whites without crushing. See Figure 3.13. Adjusting Input Levels Using the Peak Detector : 1. Display a 16 level grayscale test pattern from the desired external source, and enter a checkmark in the Peak Detector checkbox. NOTE: The “Peak Detector” will initially render the grayscale as a uniform gray field before adjustment. 2. Display one primary color (use Color Enable to select). 3. For the current color, adjust its corresponding “Blacklevel” slidebar just until a single band of black appears at one edge of the screen. This band represents the first band of the grayscale pattern, which should be 100% black. Do not adjust too far. 4. With the same color still active, adjust its corresponding “Input Drive” slidebar just until a single band of color appears at the opposite edge of the screen. This band represents the last band of the grayscale pattern, which should be 100% white (or the current color, if a certain color is enabled). Do not adjust too far. 5. Go back and check the black band—adjust the blacklevel slidebar if necessary. Blacklevel and Input Drive adjustments are related, so you may have to go back and forth until both bands are just optimized. 6. Repeat Steps 2-5 with the other two remaining primary colors. When each primary color shows one optimized black band and white (or colored) band, the input levels for this source are correctly set. Upon exiting the Input Levels menu, the Peak Detector checkbox will clear. Figure 3.13. Adjusting Input Levels Using the Peak Detector (RED EXAMPLE SHOWN)
Section 3: Operation Christie DS+60 User’s Manual 3-31 Advanced Image Settings — SUBMENU GAMMA TABLE: This control selects and applies the normal 2.2 gamma setting. Adjust this setting as desired in the main Image Settings menu. SELECT COLOR ADJUSTMENT: In “Select Color Adjustment”, choose an overall color performance for all images. The “Max Drives” factory default simply drives all 3 colors at their maximum level so that they are fully on and cannot be changed. The two other pre-defined color adjustment choices—SD Video and HD Video— apply a color gamut optimized for video sources (standard or high-definition). Alternatively, you can specify a color temperature, which enables the nearby Color Temperature slidebar and applies its current setting (default = 6500K). If none of the pre-defined “Select Color Adjustment” options or color temperatures suit your application, select one of four color gamuts previously defined by a user (User 1, 2, 3, 4). A “User” option applies a customized color performance in which the user has precisely set the hue and intensity of each color component in the Color Adjustment by X/Y or Color Saturation submenus, and is most often needed with multiple-projector applications. Select the color adjustment producing the best color accuracy for your application and installation. To configure a “User” color adjustment (gamut), use either the Color Adjustment by X/Y or Color Saturation submenu located in the Configuration menu under Geometry and Color. NOTES: 1) “Color Temperature” defaults to 6500K until changed. All four “User” options default to SD Video unless they have been redefined by the user. 2) White Boost automatically turns off when a setting other than Max Drives is selected – you will notice an immediate dimming of the display. 3) Factory-measured color primaries, which ensure consistent color gamut from projector-to-projector, can be altered in the Service menu only. If you suspect alteration, the factory settings can be recovered with selection of Factory Defaults in the Service menu (password- protected). COLOR TEMPERATURE — Adjust to apply a specific and accurate color temperature to all displays. Color temperatures are expressed in degrees Kelvin (3200-9300K), and utilize different combinations of the projector’s original native color primaries to produce a “coloration” or cast (reddish or bluish) in images—the lower the temperature, the more reddish the cast; the higher the temperature, the more bluish the cast. Note that slidebar is enabled only if you have a source connected and have selected “Color Temperature” in the adjacent “Select Color Adjustment” pull-down list in the Advanced Image Settings menu.
Section 3: Operation 3-32 Christie DS+60 User’s Manual OPTICAL APERTURE — Use this control to adjust true contrast of an image. This is an optical adjustment where the two apertures in the projector are simultaneously adjusted; one aperture is located in the illumination system and the other in the projection lens. Adjust to close the apertures, which minimizes contrast and maximizes brightness. Alternatively, adjust to maximize true contrast and minimize brightness. By default, the apertures are closed. NOTES: 1) Powering down the projector does not reset the apertures to their default position. 2) Adjusting contrast using the Contra st key is an electronic adjustment, not an optical one. WHITE BOOST — White boost is a source dependent setting that enables you to recapture some of the lost light from the transition between color wheel segments and the white segment as it’s spinning. For NTSC, HDTV, PAL and SECAM signals the white boost defaults to “2” and for graphic signals it’s “10”. When set to zero, white boost is off. As you increase the white boost setting you will notice that the image becomes increasingly brighter and a little less saturated. NOTES: 1) White Boost is automatically disabled (grayed out in menu) when you enable Brightness Uniformity, Edge Blending or select a color adjustment (Select Color Adjustment) other than “Max Drives”. 2) White Boost can also be adjusted specifically for internal test patterns. However, once you switch back to a source, the White Boost settings will reset to the value set for that source. FRAME DELAY — Set the interval of delay desired between the input signal and its appearance on screen. For applications such as simulation, where the feeling of “real time” image response is a priority, a minimum setting is usually preferable. For projectors capable of 3D (stereographic) applications where alternating left-right frames must be synchronized with the corresponding L/R shutters in 3D glasses, a frame delay setting of two (or multiple of two) may be more useful. Delay may vary between sources. NOTE: If frame delay is set too low it can cause frame tears. MOTION FILTER — This control is most useful for smoothing out moving images from interlaced sources. In most cases the proper Motion Filter setting is automatically determined according to the type of incoming source signal. However, if your source is jittery and/or tearing you may wish to “force” a setting to ensure stable processing for this source—if desired, override the default “Auto” setting by selecting the appropriate motion filter: 1. AUTO: The projector will automatically use the correct motion filter according to the incoming signal. 2. STILL: For static images with no motion, such as graphics from a CD. 3. MOTION: For video images that did not originate from film, or for moving computer-generated images. 4. FILM: For video images that originated from film. This will optimize image quality and stability. FILM MODE THRESHOLD — This setting determines how sensitively the projector can detect if an incoming video signal originated from film or not.
Section 3: Operation Christie DS+60 User’s Manual 3-33 DETAIL THRESHOLD — Use “Detail Threshold” to define at what frequency level the “Detail” control will begin to magnify high frequencies, which adds details back into the image. Raise the threshold to ignore more of these high frequencies, and lower the threshold to magnify more of these frequencies. A setting of “0”, for example, means no noise will be ignored and all will be magnified. An ideal detail threshold is one in which high frequencies that are causing objectionable noise are not magnified when using “Detail”, but frequencies which can help sharpen an overly-soft image are magnified when using “Detail”. Use the Configuration menu to define general operating parameters and communications with other projectors and equipment, and to access other advanced processing and image adjustments affecting overall performance. In addition, the Configuration menu provides access to diagnostics-and- calibration tools and the Service submenu (password-protected). Keep in mind that settings in the Configuration menu (and its submenus) are typically “global” settings applied regardless of the type of source your are using. This characteristic is identified with the (globe) icon alongside the option. NOTE: The Configuration menu is recommended for experienced users/technicians only. The first six options in the Configuration menu are explained below: Language Choose from available languages to use in the projector’s menus. The change will take effect immediately. Image Orientation Set the orientation of the image according to the orientation of your projector. If the setting is incorrect, projected images will be reversed and/or upside down. Fade Time Set how long (in seconds) it takes to gradually dissolve one image into another for a source switch. Auto Power-up Enter a checkmark to enable the projector to automatically power up after losing power due to a power failure or due to unplugging the projector during operation. Note that unsaved display adjustments may be lost. 3.6 Adjusting System Parameters and Advanced Controls System Configuration — GENERAL —
Section 3: Operation 3-34 Christie DS+60 User’s Manual Set Date & Time Enter/read the current year-month-day and hour-minute-second. Changes here reset the projector’s real-time clock. Menu Preferences — SUBMENU Use the options in this submenu to adjust the appearance, content and/or location of on-screen menus and messages. LARGE MENU FONT — Enter a checkmark to enlarge menus and their text. You may have to adjust “Menu Location” to accommodate the increased menu area. MENU LOCATION — Use the pull-down list to choose a pre-defined default or customized location for the display of all on-screen menus. To create a custom menu location quickly, choose a preset that is closest to the desired location. Then adjust “Horizontal Shift” and “Vertical Shift”slidebars to move the menu to the desired location. Avoid locations too close to a corner or edge to prevent cropping of larger menus. HORIZONTAL SHIFT AND VERTICAL SHIFT — Shift your menus as desired, creating a customized menu location. DISPLAY CHANNEL LIST — Enter a checkmark if you want to see a scrollable channel list whenever you press C han nel from your presentation. Channels marked with a list icon in the Channel Setup menu will appear here. The “Display Channel List” option also enables on-screen feedback when using the Input key. If you prefer to hide the channel list and input dialog box while switching channels and sources during a presentation, clear the checkbox. NOTE: The Channel List and input dialog box cannot be hidden during use of the menus. DISPLAY SLIDEBARS — Enter a checkmark to superimpose a small slidebar over the current image whenever an adjustable parameter is selected directly with a key such as Contra stor Bright. If “Display Slidebars” is unchecked, these slidebars can still be accessed, but will be hidden during adjustment. This option does not affect slidebars in menus. DISPLAY ERROR MESSAGES — Choose in what way you want to be notified of errors detected in either the incoming signal or projector. Select “Screen” or “All” to see a brief on-screen message or select “RS232” to receive messages via RS232 (or RS422) serial communication only. Select “Off” to hide error message displays.
Section 3: Operation Christie DS+60 User’s Manual 3-35 Settings in the Communications submenu define and control how single or multiple projectors are can link with each other and with a controlling device. Baud Rates The baud rate setting determines the speed of communication to and from the projector on the RS232 or RS422 links. The maximum rate for either standard is 115200. Set the baud rate to match that of your controlling device, such as your PC. If you are unsure about what baud rate to choose, refer to the documentation for the controlling device. In an existing network of projectors, if you discover that a projector has a different baud rate, make sure to use the pull-down list and select the correct baud rate using the key—do not just scroll this control with or keys. Serial communication is always 8 data bits, no parity. Projector Enter a three-digit number (such as 001”) to assign or change a number to the projector currently in use. If the current projector already has a number assigned, that number will appear here (for example, “004” in Figure 3.14, above). Numerical identity for projectors enables you to communicate with a single projector within a multiple-projector application (see also Pr o j key in 3.2, Using the Keypads). If you make a mistake in assigning or changing the projector number, press Ex i t to cancel. Network Routing NOTES: 1) Not applicable for stand-alone projectors or simple serial networks with only one type of controller and linking. SEPARATE: Select “Separate” (factory default) to keep RS232, RS422 and Ethernet messages on their respective paths instead of being broadcast to the other types of ports. In Figure 3.15A, RS422 controls only the projector to which it is connected. In Figure 3.15B, either RS232 or RS422 will control the network. Figure 3.14. Communications System Configuration — COMMUNICATIONS —
Section 3: Operation 3-36 Christie DS+60 User’s Manual Figure 3.15. Using the “Network Routing” Option RS232 AND RS422 JOINED: Messages originating from an RS232 or RS422 controller will be relayed to all RS232 ports. Any Ethernet communication, however, will not. RS232 AND ETHERNET JOINED: Messages to and from the RS232 ports will also be relayed to the Ethernet port, and vice versa. Any RS422 communications will be isolated. ALL JOINED: All messages reach all ports, regardless of type. Ethernet Settings (SUBMENU) NOTES: 1) Recommended for network administrators only. DHCP: Enable this checkbox if you want a DHCP server to automatically change the projector’s default IP address (0.0.0.0) to one that is valid and unique for use on the current Ethernet network. On networks without a DHCP server, or to simply override the automatic DHCP server function, delete the checkmark and enter the new “IP Address” settings desired. Remember that only a 0.0.0.0 address will trigger the DHCP addressing service, and only when the DHCP checkbox is enabled. IP ADDRESS: Enter a valid and unique IP address for use on the network to which the projector is currently connected. This address will overwrite any previous IP address such as the projector’s factory-defined default (0.0.0.0), or one that has been assigned by a DHCP server or other user. An IP address entered here remains in effect until it is changed again. PORT: On some Ethernet networks, firewall restrictions may require that the port number of the projector be changed from its default of 3002. If so, enter a new valid port number here.