User manual ZENITH PRO880X

[. . . ] The code provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the building, as close to the point of the cable entry as practical. REGULATORY INFORMATION: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. [. . . ] Projection formats are expressed in terms of aspect ratio, which is the relationship of the height of the projected image to its width. Aspect ratios of common projection formats are listed below. If it is necessary to modify the screen dimensions based upon the formats of projectors to be used, it is preferable to hold the screen height constant and increase the screen width as necessary, rather than to hold the width constant and decrease the height. ASPECT RATIOS OF COMMON PROJECTION FORMATS H:W 1. 00:1. 00 Overhead and opaque projection, 1. 00:1. 78 or 9:16 High Definition Television (HDTV) Anamorphic Video 1. 00:1. 33 or 3:4 LCD and CRT video and data-graphics projection 1. 00:1. 85 Wide Screen 1. 00:2. 35 CinemaScope 1. 00:1. 48 or 2:3 2x2 standard slides (35mm DF) 3276-A Note - Vertical presentation of a slide reverses its aspect ratio. To allow this, use a 1. 00: 1. 00 aspect ratio for any type slide. Projection Formats Most models of DRAPER screens are offered in both audio visual and 3:4 video formats. Certain models are also offered in HDTV and WideScreen formats. The differences between these formats are stated below. We are glad to provide any DRAPER screen in the size and projection format of your choice. We can provide any size up to and including the largest published size. If you do not find the size and format you need listed, please call or fax your requirement to us, and we will be delighted to quote. Refer to the figure on page 23 for the edge focus procedure. Mount the PRO880X system according to the prearranged plans agreed upon between the installer and end user. Verify the mounting point, hardware, signal connections, and power connections. Note: It is recommended that preliminary setup be done on the floor before hanging a ceiling-configured system. Projector/Display Surface Physical Setup a. Set the projector to screen distance according to display width. Refer to the figures on pages 20 and 21. Set projector height according to display size. Refer to the figures on pages 20 and 21. Adjust the projector's position for no horizontal skew to the display screen. Verify that the Green CRT center is centered to the screen horizontal center. [. . . ] Key 28. Touch up all controls 13. `S' 206-3634 PAGE 25 PAGE 26 206-3634 SYSTEM ALIGNMENT DIGITAL DISPLAY SETUP PROCEDURE CONVERGENCE OF RED AND BLUE ONTO GREEN It is desirable to Mute color you are not adjusting. Select the color you want to adjust by pressing the RED or BLUE key. Remote Key Adjustment Goal Remote Key Adjustment Goal 1. Statics Set center of video for best overlap with Green (this may have to be `tweaked' during this alignment procedure. ) H. [. . . ]