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Changing the Background
At the PST stage, while the CK light is on the Sub Source Rail, you can choose to change the background
source. Press the CK key on the Sub Source Rail and it will change from red to yellow, as will the source
number. The illuminated source number shows the background that is selected. Select an alternative source
by pressing a different key, Channel 7 in this example. You will see the background change in the PST
window.
Once you have selected the background that you want press the CK key on the Sub Source Rail, so that it
changes from yellow to red. The Sub Source Rail number will return to showing the foreground number,
rather than the background number - (In this example 1 rather than 7).
Once the Chroma Key is as you want it, then you can send if live by pressing the Take Key, or using the T-
Bar.
N.B. You are restricted to cutting or dissolving while Chroma Key is active, no other transitions are
available.
