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Transitions - Mix/Effects Bus Operations
Background Mix
A mix is a dissolve from one picture to another. You can mix
between A and B bus sources as follows:
1. Select Source 2 on the M/E 1 A bus background crosspoint
row. The A bus appears on the PGM monitor.
2. Select Source 1 on the M/E 1 B bus background crosspoint
row. The B bus appears on the Preview monitor.
3. Select the BKGD A Transition button.
4. Select the MIX Transition button.
a. Move the M/E 1 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. This keeps the A Bus as the “on-air”
output, allowing all new background source selections to
be made on the B Bus.
NOTE:
The B Bus will high tally as soon as you start the transition.
This is because the B Bus crosspoint now contributes to the switcher
PGM output. (In fact, all crosspoints on the panel that contribute to
PGM output will high tally.)
b. As an alternative to using the lever arm, press M/E 1
AUTO TRAN
to do an automatic mix transition. To pause
an auto transition in progress, press AUTO TRAN again
while the mix is taking place. 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. This may leave both green direction arrows ‘ON’
on the transition panel. This indicates a dead lever arm.
Simply move the lever arm to either limit to clear the
arrows and regain lever arm control.