Grass Valley 1200 Operation Manual - Manual (Page 165)

4-3
Transitions
Background Mix
A mix (Figure 4-2) is a dissolve from one picture to another. You
can mix between Program and Preset bus sources as follows:
1. Select a PST bus [crosspoint] .
2. Select the [Bkgd] Transition button. The PST bus scene will
appear on the preview monitor (optional).
3. Select the [Mix] Transition button.
4. Move the lever arm from one limit to the other. As the lever
arm moves, the Preset bus scene will mix on air, the Program
scene will mix off, and the Program and Preset crosspoint
selections will flip-flop (swap) at the end of the mix.
As an alternative to using the lever arm, press [Auto Trans]
to do an automatic mix transition. To pause an auto transition
in progress, press
[Auto Trans] again. To resume the
transition, press it a third time. You can also start a transition
with the lever arm and finish it with an auto transition or vice
versa.
Ending Video
Mix in Progress
Starting Video