Grass Valley DD35 Family v.3.1.5 - Manual (Page 49)

2. Panel Operation DD35 Production Switcher
2 – 15 Operating Instructions – Rev. 16 / 10.2001
2.4 SOURCE SELECTION GROUP
For operator convenience, the source selection rows can be swapped in the Envi-
ronment Setup. See also: Menu Install / Panel / Preset Is Upper (formerly PGM/
PST German).
2.4.1 BACKGROUND A
The Background A bus source is selected and indicated on the Background A
bus bank. Pressing another button in this bank performs a hard cut to the new
source.
In Non-Layer mode, the Background A bus is the Program bus.
In addition to the source selection, the switcher performs the actions shown in the
table when the appropriate Application Setting is turned on (for details see menu
Config / EBox / ME Settings).
Application Setting Action
Button Drop (!= None) The selected buttons will be dropped i.e. cut out when a pro-
gram source is selected. Mainly used for DSKs.
Black Pst Abort A currently running transition with BLK Pst on will be aborted,
the BLK Pst button lamp turns off and the selected source is
taken fully as program.
Transition Abort A currently running transition will be aborted and the selected
source is taken fully as program.
FTB Cancel When Fade-To-Black is active, this will be instantly cancelled,
so that the image with the selected source is visible on the
stage’s program output.
In Layer mode, the Background A bus is the bus of the key BGD-A – similar to
the standard key buses Key 1 and Key 2. I.e. the key selection mode of the Keyers
Panel (Key Bus, Couple, Split) applies.