Operation

Sharpness: “Sharpness” is the amount of high-frequency detail in the image. To adjust sharpness, select Sharpness from the Picture Adjust menu and press ENTER. On your external test pattern source, select a pattern like the one shown in Figure 4-5.Adjust as needed, looking for white edges around the transitions from black to gray and different sized lines in the “sweep” patterns at the top and bottom. Lower the sharpness setting to eliminate them.

Figure 4-5. Typical Test Pattern for Adjusting Sharpness

DNR: To apply Digital Noise Reduction (DNR) to the input signal, select DNR from the Picture Adjust menu. Noise reduction is useful for clearing up noisy RGB images such as those from a PC. Adjust as desired using the left- or right-arrow buttons, keeping in mind that reducing noise (which reduces high frequencies) may also “soften” the image.

MPEG NR: Use the MPEG Filter to reduce or eliminate so-called “mosquito noise” in MPEG-compressed video signals (digital broadcasts or DVDs). Adjust as needed to minimize distortion around the edges of moving objects, moving artifacts around edges and/or blotchy noise patterns superimposed over the objects.

Backlight: The Backlight control changes the apparent brightness of the displayed image. Its effect is similar to that of a lamp intensity control on a projector.

The Backlight control is disabled when Auto Backlight (described on

Note

page 39) is set to On.

 

Color Temperature: To choose a color temperature setting, select Color Temp. from the Picture Adjust menu and press ENTER. (Color temperature defines the “color of gray.”) The choices are 5400K, 6500K, 8500K and Custom. The default setting, 6500K, is appropriate for most situations. Higher settings produce a “bluer” picture; lower ones impart a reddish hue to the image.

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Vidikron VL-52 and VL-57 Owner’s Operating Manual

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Vidikron VL-52, VL-57 manual Typical Test Pattern for Adjusting Sharpness

VL-57, VL-52 specifications

The Vidikron VL-52 and VL-57 are high-performance projection television models that encapsulate advanced technology and design, aimed at delivering an exceptional viewing experience. Manufactured during an era when home theater systems were evolving, these models became known for their cutting-edge features and superior picture quality, setting a benchmark in the projection television market.

The VL-52 features a 52-inch screen size, while the VL-57 sports a larger 57-inch display, both offering expansive viewing areas ideal for home cinema setups. One of the key characteristics of these models is their use of a high-resolution CRT (Cathode Ray Tube) technology, which provides vibrant colors and deep blacks, enhancing the overall image quality. The zoned convergence adjustment allows users to fine-tune the picture, ensuring that colors align perfectly across the entire screen.

In terms of features, both models support various video formats, including 480i, 480p, and 1080i, allowing for high-definition viewing on compatible content. The inclusion of multiple inputs, such as component, composite, and S-Video, ensures that users can connect a variety of devices, from DVD players to gaming consoles, easily. This versatility makes the VL-52 and VL-57 attractive options for consumers seeking a comprehensive entertainment solution.

The technologies integrated into these models also contribute to their performance. The onboard video processing capabilities enhance image clarity and reduce motion blur, making fast-paced action scenes more enjoyable. Furthermore, both models are equipped with an advanced color management system, which ensures that colors remain true to the source material, providing viewers with a lifelike experience that is reminiscent of the cinema.

Another noteworthy characteristic is the build quality. The Vidikron VL-52 and VL-57 feature a robust and elegant design, making them a fitting centerpiece in any home theater setup. The attractive cabinet work and premium materials used in their construction reflect the brand's commitment to quality and aesthetics.

Overall, the Vidikron VL-52 and VL-57 remain iconic models, blending technology, performance, and design. As home entertainment continues to evolve, these projectors stand as a testament to the innovation that defined their era, offering features and characteristics that can still impress enthusiasts today.