– 68 –Chapter 5 Basic Operations — DSK (Downstream key)Masking the DSKMask the key signals using the mask signal of the box pattern. The following figure is the status when [Type] is set to [ForeGround], and [Invert] is set to[Off].Area where the key signal is effectiveVideo signal rangeArea masked[Right][Left][Top][Bottom][50][25][0][−25][−50][−25][−50] [25][0] [50]1 Select the button → [DSK1] to [DSK4] → [Setting] tab.2 Select an item in [Mask] in the [Mask] column.f Set the mask method.[Off] Does not mask the key signals.[4:3] Masks the signals in the 4:3 aspect ratio.[Manual] Masks the area set in [Mask Adjust1] or [Mask Adjust2].3 Select an item in [Type] in the [Mask] column.f Set the image to be masked.[ForeGround] Masks the foreground and displays the background.[BackGround] Masks the background and displays the foreground.4 Select an item in [Invert] in the [Mask] column.[Off] Does not invert the mask signal.[On] Inverts the mask signal.5 Set [Left], [Top], [Right], and [Bottom] in the [Mask Adjust1]/[Mask Adjust2] column.f Set the area to be masked. The [Left] setting cannot exceed the [Right] setting (and vice versa), and the [Top] setting cannot exceed the [Bottom]setting (and vice versa).[Left] Masks the key left position.[Top] Masks the key top position.[Right] Masks the key right position.[Bottom] Masks the key bottom position.Setting the prioritySet the priority (image positioning). The default setting is as shown in the following figure.Background image[DSK4]: [1st][DSK3]: [2nd][DSK2]: [3rd][DSK1]: [4th]1 Select the button → [MISC] → [Misc] tab.2 Select an item in [DSK1] to [DSK4] in the [DSK Priority] column.f Select the priority for any key from [1st] to [4th].f Changing the setting of one item will change the settings of other items accordingly. In the default setting, if [DSK1] is changed from [4th] to [1st],then the settings of [DSK2] to [DSK4] also change as follows.- [DSK2]: [3rd] → [4th]- [DSK3]: [2nd] → [3rd]- [DSK4]: [1st] → [2nd]
