Preview

This module is used to select whether you are viewing program or preview of a selected ME on the Preview output.

Table 1. Preview Button Functions
Button Function
ME X Allows you to select the ME to assign to the preview output.
+4 Allows you to select an ME above ME 4. When the +4 button is toggled on, the ME 1 through ME 4 buttons become ME 5 through ME 8 buttons respectively. For example, if you want to select ME 6, toggle the +4 button on, and press ME 2. Both the ME 2 and +4 buttons will remain lit.
SRC Allows you to assign a specific video source to it. When the SRC button is selected, the video source that is assigned to the button is fed out of the preview. This source overrides the preview video but is not taken to air with the next transition. When the SRC button is de-selected, the video previously being fed out of the preview is restored. Press and hold the SRC button and select the new source you want to assign to the button.
PV Allows you to assign the preview output of the selected ME to the preview output. On the A1S, it assigns the preview output of the switcher to the preview output.
PGM Allows you to assign the program output of the selected ME to the preview output. On the A1S, it assigns the program output of the switcher to the preview output.
ME PGM (A1S only) Allows you to assign the program output of the selected ME to the preview output.
ME PV (A1S only) Allows you to assign the preview output of the selected ME to the preview output.