Grass Valley 1200 Operation Manual - Manual (Page 174)

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Section 4— Basic Operations
4. Now do the transition:
■ For an effects key cut, press Transition [Cut].
■ For an effects key mix, select [Mix] and move the lever
arm from limit to limit or press [Auto Trans].
■ For a wipe, select Transition [Wipe], and select and adjust
the pattern as described earlier for background wipes.
Then move the lever arm or press [Auto Trans].
■ For a DSK cut, press [DSK Cut].
■ For a DSK mix, press [DSK Mix].
■ When a key is on-air, the Key On indicator lights below
the appropriate keyer delegation button on the transition
sub-panel (and on the Keyer sub-panel if the on-air keyer
is delegated).
5. Once the key is on air, you can change backgrounds behind it:
Select
[Bkgd] only and do a transition.
6. To remove the key(s), select [Key 1] and/or [Key 2] and do
another transition. You can also cut the currently delegated
key layer on or off using the Keyer
[Cut] button.