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Section 2— Control Panel Descriptions
The PRESET BLACK function is available in each M/E. PRESET
BLACK
affects only the effect where it is selected and not the entire
switcher. The button lights when pressed and turns off
automatically when the second transition is complete. The BLACK
video input button on the A Bus remains lit while the M/E is on
the black limit. The preview monitor continues to show the final
result of the two-stage preset black transition.
MIX and WIPE are unaffected when PRESET BLACK is turned on.
MIX
and WIPE can be changed at any time during a preset black
operation.
Preset Black always fades to a full screen black regardless of
whether the switcher is operating in layered mode or standard
mode.
An abort of Preset Black occurs when the operator selects a
crosspoint on the A Background bus while the M/E transition is
on the black limit. This abort causes the following to occur: the
preset black transition is cancelled, the
PRESET BLACK button
lamp turns off, all keys are dropped, and the selected crosspoint is
taken fully on-air. If the abort occurs in Layered Mode, the M/E is
forced to Standard Mode to ensure that the selected crosspoint is
a full raster image.
A new background source may be selected on the B Background
bus when you are at the midpoint of a preset black mix. In the
same manner, next-transition delegation buttons, keyer modes, or
keyer sources may also be changed. None of these changes will
abort the preset black transition.