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Фрагмент инструкции
These keys are auto-repeat buttons; that is, pressing and holding these buttons causes them to constantly send instructions. Tint/.Contrast and Level buttons are still active when in Menu Mode. 4.7 Adjusting a Menu Option Use the Position Up and Down control buttons to adjust menu options. These keys auto-repeat. Pressing Shift RESET when the menu is showing resets all menu items, including the color adjustments, to factory-default values. 4.7.1 COLOR BALANCE (TRUE COLOR ONLY) Adjust the Tint control to get the best colors. Black and white will always have a reddish tint. If the colors still need adjustment, display the menu by pressing Shift-Menu. If you press Shift-Reset when the menu is displayed, the color balance will be reset to its factory default values. Resetting to default and slightly adjusting the Tint control may be enough to improve the colors. 24 CHAPTER 4: Operation If the colors still need adjustment, follow these steps and use the red and green adjustments to fine-tune the panel: 1. Move the green bar down until you have a rich red and a solid black. 2. Move the red bar down until you have a rich, true green. If cyan turns green, the green bar turns brown, and the white turns magenta, you have moved the bar too far down. 3. If your white is magenta-tinted, drop the red bar down a few steps until it is white, but not so far that the black turns red. White and black, however, are always going to be slightly reddish. 4.7.2 EGA 64 For the True Color Panel, EGA 64 may affect the color brown on some EGA systems and some VGA systems when in EGA mode. If your brown is displaying as light red, turn on the EGA 64 setting. For the Monochrome Panel, EGA 64 may allow you to get all 16 shades of grey instead of 15 shades. Default value is OFF. 4.7.3 TRACKING The Tracking adjustment bar allows you to match the Projection Panel’s internal clock to the different computer graphics signals. Using tracking allows the Projection Panel to project crisp images from a range of computer graphics systems. There are 64 tracking levels. You need to adjust the tracking if the display shows evenly spaced, fuzzy vertical lines, or if the projected image is too wide or too narrow for the screen. Move the tracking bar down (lower numbers) to make the image look narrower. Move the tracking bar up (higher numbers) to make the image look wider. The default Track value is shown with the Video Information. As you move the Tracking adjustment bar up or down, the Track value changes. Move the Tracking adjustment bar up or down until the fuzzy lines move apart on the screen or disappear, or the text fits the screen. The ideal is to have no bars visible and all the projected text or graphics on the screen. 25 REAL COLOR AND MONOCHROME 16 LCD PROJECTION PANELS Fig. 4-16. Tracking. 4.7.4 VIDEO/NO VIDEO The Video column provides information about the current video input. If video is not present, the User Menu displays “No Video,” with no Horizontal or Mode information and the test pattern or blank screen visible in the image area. The Video information column shows the tracking setting (described previously), the horizontal sync frequency and polarity (HORZ), the vertical sync frequency and polarity (VERT), and the video mode number (MODE). These values (except for Track) are for informational purposes and cannot be adjusted. If you are experiencing problems, be sure to write down these values before calling Technical Support. 4.7.5 LANGUAGE Menus can be displayed in either English, French, German, Italian, or Spanish. The User Menu allows you to choose the language. The default is English. 4.7.6 REAR PROJECTION Select ON to flip the image from left to right for rear projection screens. The default is OFF. Rear projection allows you to use a standard overhead projector without complex mirror setups for rear projection. 26 CHAPTER 4: Operation Fig. 4-17. Rear Projection. 4.7.7 TEXT SLICE Text Slice allows you to adjust VGA text characters to look their best. The Projection Panel discards one of seven pixels to adjust characters. Text Slice allows you to choose which of the seven pixels you want the Projection Panel to discard. Text Slice is ON for only 720 text mode (VGA text). Text Slice has no effect on characters when Text Mode is OFF. Adjust the Text Slice until your characters are solid and fully formed. 4.7.8 TEXT MODE The Projection Panel screen area is 640 pixels wide. Text that extends beyond 640 pixels may be either compressed or truncated. When text (or graphics) is compressed, it is tightly spaced to fit the display screen. Truncated text (or graphics) is not respaced to fit the display; rather, anything beyond the right edge of the screen display is not shown. Selecting ON for the Text Mode locks VGA text to solid pixels (no shimmering). CGA graphics, however, may be compressed. Unless you regularly project CGA graphics with the Projection Panel, text mode should be set to ON. Text Mode works only when text is present. Fo...
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