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2. Basic operations
2-3. Key

2-3-1. Selecting the key source

Selecting the key source signals
The signals assigned to crosspoints 1 to 7 can be used for the key source signals.
While holding down the [KEY-S] switch in the source selection area, press one of the B bus crosspoint switches [1]
to [7] to select the key source signal. The indicators of the [KEY-S] switch and selected crosspoint switch light in
amber.
Provide materials with white key-combined characters or patterns on a black background for the key source
signals. The keys may not be combined satisfactorily if the material has colors other than black and white.
Material with black characters on a white background, for example, can be reversed for use using the key invert
function.
<How key composition works>
Background
Key source
Key fill
Output image