GRASS VALLEY Kayak HD 100C, User Manual

Page: 99 / 558

Kayak — User Manual 99
Transition Control
Performing Transitions
The Cut and Auto Trans buttons and the Transition Lever Arm are used to
perform main transitions. After a transition completes, the background
source selections flip-flop, readying the PST bus for the next source selec-
tion. The progress of a transition is indicated by the up and down arrows
to the left of the lever arms.
The
Cut
button instantaneously replaces the selected elements with their
new sources or states, regardless of the transition type selected. The button
will light briefly to confirm the operator's action.
The
Auto Trans
button starts an automatic transition of a predetermined rate.
The button will light during the transition. Pressing Auto Trans a second time
during a transition stops the transition at that point. The transition can then
be completed by pressing the button a third time or by moving the
Transition
Lever Arm
to its opposite limit.
The Transition Lever Arm is used to manually perform a transition. You can
move the lever in either direction to run a transition due to the flip-flop
architecture of the buses. Moving the lever from one limit to the other per-
forms a complete transition. It is possible to start a transition with the lever,
then stop moving the lever at any point, reverse its direction, and even
return it to the original limit without completing the transition.
If the Transition Lever Arm is not in an end position when recalling an effect or
performing an
Auto Trans
the lever arm is resynced by recalculating the
resting lever arm way to complete the transition in the direction of the
arrow. Moving the lever arm in the opposite direction allows the operator
to resync the arm to an end position without affecting the output signal.
Preset Black
The
Preset Black
button modifies a main transition so that it will go through
black, instead of going directly to the new state. This is an alternate action
button (pressed to turn it either on or off). The Preset Black button lights
when it has been selected.
Two successive transition commands ( Auto Trans button,
&‹
button, or
Transition Lever Arm action) are used for a complete preset black transi-
tion.
The first command transitions the switcher to black (first stage). When in
black, both the PGM and PST bus selections will go low tally. The second
command transitions from black to the final stage, completing the preset
black transition.
The preset black function is canceled automatically at the end of the second
transition.