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Christie Digital Systems CSP70 user manual See .13. Adjusting Input Levels Using the Peak Detector

Models: CSP70

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Section 3: Operation

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 backporch location (which is likely too short) to the tip of the horizontal sync pulse. Tri Level is typically needed for an HDTV source.

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.

PEAK DETECTOR – The Peak Detector is a tool to assist with defining individual input levels, enabling you to accurately set the Input Levels for any particular source with the appropriate image. 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 or extreme crushing.

2.Display one primary color. NOTE: Selecting Auto Color Enable ensures the correct color is displayed for each setting.

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.It may be advantageous to go back and check the black band—adjust the blacklevel slidebar if necessary. NOTE: Readjusting blacklevels at this point affects the gain; only readjust when absolutely necessary.

6.Repeat Steps 3-5 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.

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Christie Digital Systems CSP70 user manual See .13. Adjusting Input Levels Using the Peak Detector
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CSP70 specifications

Christie Digital Systems has long been regarded as a leader in visual display technology, and the CSP70 is a standout product in their portfolio. This innovative projector is designed to cater to professional environments such as corporate meetings, educational institutions, and event venues that require high-quality image projection.

One of the most notable features of the CSP70 is its impressive brightness. With a high lumen output, the CSP70 ensures vibrant and clear images even in well-lit conditions. This is particularly important for environments where ambient light can interfere with image quality. The projector employs advanced DLP (Digital Light Processing) technology, which enhances color fidelity and contrast, producing sharp and detailed visuals that capture the audience's attention.

The CSP70 is also highly versatile, supporting a wide range of resolutions including 4K. This ability to display high-definition content makes it ideal for presentations that require fine detail and clarity. Whether used for corporate presentations, educational lectures, or immersive multimedia experiences, the projector delivers exceptional performance.

Another key characteristic of the CSP70 is its connectivity options. Featuring multiple input sources, including HDMI, DisplayPort, and various legacy connections, it ensures seamless integration with a variety of devices and media formats. This flexibility allows users to easily switch between sources without hassle, enhancing the efficiency of presentations and collaborations.

Moreover, the CSP70 incorporates advanced imaging technologies, including HDR (High Dynamic Range) support, which expands the color range and contrast ratio, providing stunning visuals that are more lifelike. The projector also boasts an extended lifespan, thanks to its robust design and efficient cooling system, minimizing maintenance interruptions and maximizing uptime.

In addition to its technical specifications, the CSP70 is designed with user-friendliness in mind. The intuitive interface allows for easy setup and operation, making it an excellent choice for users of all skill levels. Overall, the Christie Digital Systems CSP70 stands out as a powerful and adaptable projection solution, making it a go-to choice for professionals seeking reliability, quality, and versatility in their visual presentations.