Sony DVS-7250, Operation Software

Page: 121 / 542

Chapter 4 Basic Operations for Image Creation
4-43
4
Press one of F4 through F6 to select the type of signal used for key
source: the same as the key fill signal, or a different signal.
F4 (KEY BUS): Use the signal selected on the key fill bus for the key
source (self-keying). This selection automatically switches the key
source bus to the same signal as the key fill bus, and it is no longer
possible to make a key source bus selection with the cross-point
buttons.
F5 (AUTO SELECT): Use the key source signal allocated to this key
fill signal in a setup menu. The default is to be the same as the key
fill signal (self-keying). This selection also disables key source bus
selection with the cross-point buttons.
F6 (SPLIT): Use the video signal selected on the key source bus.
5
If you selected F6 (SPLIT) in step
4
, select the key source signal using
the cross-point buttons, as follows.
Press the keyer delegation button KEY 1 in the key control section to
delegate the key control section to keyer 1, then hold down the SPLIT
button and press the required cross-point button in the K1 row (BKDS-
7026)/K row (BKDS-7025) or in the auxiliary bus bank.
When the object of operation is a downstream key (DSK 1 or DSK 2),
holding down the delegation button DSK 1 or DSK 2 in the auxiliary bus
bank, press the required cross-point button.