181. Basic operations1-3-4. Key previewKey preview images can be output to the preview output, andthe keys can be adjusted and checked.1 On the Key menu, use [F1] to display the Key sub menu.2 Use [F5] to set the preview mode using the PVW item.On An image with key effects added is output tothe preview output.Off An image with no key effects added is outputto the preview output.Auto The preview image of the next transition isoutput to the preview output.When a user button to which the On/Off settings have beenallocated is pressed, the setting is switched alternatelybetween On (button indicator lights) and Off (button indicatorextinguished), and the “Auto” setting is not selected.Menu User button When the user button is pressedOn Lights Off: ExtinguishedOff Extinguished On: LightsAuto Extinguished On: LightsWhen “Auto” is selected using a menu operation, the userbutton indicator is turned off (extinguished).1-3-5. Adjusting the luminance key andlinear keyThese steps are taken to adjust the luminance key and linearkey definition.1 Press the k button to light its indicator, and display theKey menu.2 Use [F1] to display the Adjust sub menu.3 Use [F2], [F3] and [F4] to adjust the key definition.4 Use [F5] to set key invert.When “On” is selected, the key signals to be generatedinternally are inverted.Operation/Parameter Description of setting Setting rangeF2/ClipReference level for generatingkey signals 0.0 to 108.0F3/Gain Key amplitude 0.0 to 200.0F4/Density Key density 0.0 to 100.0F5/Invert Key signal inversion On, Off