Sony MVS-6500 System Startup Manual page 47

Transition rate
display
AUTO TRANS button
Transition control block
The output comprises 50% each of both background A
and background B video when the fader lever is in the
center position.
Background B
Mid transition state
Memo
When you press the [AUTO TRANS] button, the
transition is executed automatically according to the
set transition rate.
Fader lever
Background A
47
Video Switching (Transitions)