Sony DFS-700, DFS-700P manual 121

Timing of the trigger (T1/T2) signals

The timing of the trigger signals output by the BVE-600 is as follows.

VCRs start		IN point		Effect start point		OUT point VCRs stop
Player A
Player B
Recorder
T1
T2
PGM OUT			Background bus image			Foreground bus image
signal
	Preroll				Effect		Postroll
					execution
					(transition)
				A-roll period		B-roll period

Timing of trigger signals in A/B roll editing

Editing From Control 5 Chapter

Units Control

Chapter 5 Control From Editing Control Units 5-7