Extron electronic DDS 402 manual Picture adjustment buttons, LCD display, Menu control buttons

Memory presets with no values saved in them are not included in the loop; if preset 2 is empty, the loop sequences from preset 1 to preset 3 when the Input button is pressed.

As each preset is recalled, the LCD displays the message Input x Memory y, where x is the input (1 or 2) and y is the preset (1, 2, or 3).

The centering and sizing adjustments are tailored for the selected output rate. If you change the output rate and then recall a preset for the earlier rate, the adjustments recalled in the preset have no effect on the video output. However, if you then change back to the earlier output rate, the affects of the adjustments appear on the screen.

Picture adjustment buttons

The picture adjustment buttons select individual image adjustments that are adjusted using the Adjust ( 12 ) and Adjust ( 13 ) knobs. These buttons light when pressed.

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Center control button — The Center button selects and deselects the display centering adjustment. See Picture adjustments in this chapter.

Size control button — The Size button selects and deselects the display size adjustment. See Picture adjustments in this chapter.

Brightness/Contrast control button — The Brightness/Contrast button selects and deselects the display brightness and contrast adjustments. The brightness adjustment range is from 0 to 127. The contrast adjustment range is from 0 to 255. See Picture adjustments in this chapter.

Zoom control button — The Zoom button selects and deselects the display zoom adjustment. Zoom works the centering and sizing functions simultaneously to enlarge a portion of the displayed image. Turning either Adjust knob clockwise zooms in on the image, and turning either knob counterclockwise zooms out from the image. See Picture adjustments in this chapter.

Detail control button — The Detail button selects and deselects the display image detail (sharpness) adjustment. The sharpness adjustment compensates for long cable runs. The Adjust knob controls the horizontal filter and the Adjust knob controls the vertical filter. The adjustment range for each filter is 0 to 7. See Picture adjustments in this chapter.

LCD display

9Status display — The 16-column by 2-line LCD displays configuration menus and status information. See Front Panel Operations in this chapter for details.

Menu control buttons

10Menu button — The Menu button enters and moves through the main menu system in the DDS 402. See Front Panel Operations in this chapter for details.

11Next button — The Next button steps through the submenus in the DDS 402 menu system. See Front Panel Operations in this chapter for details.

Adjustment knobs

12Adjust (horizontal) knob — The Adjust knob changes settings when used in conjunction with the picture adjustment buttons or the menu system. Rotate this knob to change picture settings when one of the picture adjustment buttons is selected. In the menu system, rotate this knob to scroll through menu options and make adjustments.

Digital Display Scaler • Operation 3-3