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Resumen del manual
The Model 40 has a 1,280-by-720 resolution and utilizes the HD2 chip. B. Take your pick of connection options, including a DVI input with HDCP. DLP projectors have become all the rage in the front-projection home theater arena, thanks in large part to the 1,280-by-720 chips that hit the market a little over two years ago. These chips raised the bar in picture quality for affordable high-end front projection. Vidikron, a front-projection home theater pioneer, was recently purchased by Runco International and has launched a new line of DLP projectors. The company’s Vision Model 40 is a one-chip DLP projector with a native resolution of 1,280 by 720, and it’s based on the second- generation HD2 (or Mustang) DMD chip. Compared with the first-generation chip, this one definitely delivers better black-level performance and a higher contrast ratio. The Model 40 has solid video processing with 3:2-pulldown detection for film-based material, good color decoding, and a nice features package. It’s also competitively priced and, as such, is an excellent value in its category. The Model 40 has a compact, squarish design with a white finish. It measures 4.75 inches high by 15.75 wide by 13.625 deep and weighs a reasonable 15 pounds. The unit has a very solid feel, which indicates good build quality. The lens is offset slightly from the center of the pro jector. Some of the remote’s most commonly used buttons are also on the top of the unit, such as power, menu, input, enter, exit, and the arrow keys for navigation within the menu B system. Heat is vented through the front of the projector, and there’s virtually no light leakage from the lamp. The remote control, while not backlit, is fully illuminated by glowin- the-dark buttons. The remote does offer discrete access to all of the projector’s inputs, aspect ratios, and memories, which is very important to a custom installer who’s trying to integrate these functions into a Crestron or AMX touchpanel control system. is located on the projector’s rear panel, is fairly comprehensive. You get one 480i-only component video input with RCA connections, plus a set of RGB inputs with H and V sync; if you use only the R, G, and B inputs, this connection doubles as a high-bandwidth component video input that’s capable of displaying 480i/p, 720p, and 1080i sources. Of course, the obligatory composite and S-video inputs are also here (one of each), as well as a DVI input with HDCP copy protection for use with the new crop of satellite and cable HDTV receivers. Finally, Vidikron provides an RS-232 port for integrated control systems like the above- mentioned Crestron and AMX touchpanel systems. The Model 40 has few, if any, consumer-type features, but that’s to be expected with any front projector. However, it does offer a few notable picture-enhancing features, including a nine-point system for calibrating the gray scale that gives the professional installer and/or video technician unprece dented flexibility in this important setup area. You also can set the gray scale and all other picture parameters for each input separately. A total of 21 separate memory locations gives you more flexibility than you’re likely to ever need in terms of optimizing the picture for all video and computer sources. For added versatility, you can choose either a short-throw lens (1.38:1 to 1.63:1), or, for an additional $1,000, you can opt for the long-throw lens (1.83:1 to 2.40:1). 110 Home Theater / November 2003 • GEAR GUIDE Vidikron Vision Model 40 DLP Projector C. The remote offers discrete input and aspect-ratio buttons that glow in the dark. The Model 40 has five color- temperature settings: 0, 1, 2, 3, and 4. Of course, it also offers several aspect ratios: 4:3, letter- box, anamorphic, and Intelliwide. Vidikron designed the Intelliwide setting specifically for blowing up 4:3 material to fill a 16:9 screen, and it does so with a minimum amount of picture distortion, unlike many other similar implementations of this sort. 5000 5500 6000 6500 7000 20 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 IRE Color Temp - Before Color Temp - After Color Temperature Blue Green Red Vidikron Red Vidikron Green Vidikron Blue D6500 K 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.1 0.2 0.3 0.4 0.5 0.6 0.7 DTV Phosphors D6500 Color Temp - Before Color Temp - After HT Labs Measures: Vidikron Vision Model 40 DLP Projector The top chart shows the Model 40’s gray scale relative to its color temperature at various levels of intensity, or brightness (20 IRE is dark gray; 100 IRE is bright white). The gray scale as set by the factory, in the 2 color-temperature mode, measures slightly blue across the gray-scale range. After making adjustments using the Photo Research PR-650, the gray scale measures extremely well, within 80 Kelvin of D6500, the accu- rate color temperature, across the entire range. This is a slight improve- ment compared with the already-good performance before calibration. The bottom chart shows t...