If I use the No 2 trigger which can be assigned to any one of the video inputs,what happens when I switch sources.Is there a delay on the turn off of the trigger so it stays on when I switch from one source to another.I may use the trigger to power up my projector cooling system.Thanx

If it behaves the same as the main trigger, it doesn't have any appreciable delay.

But I wonder if that's such a good idea. If someone isusing the system and switches to an audio source where the tirgger is off, and then back again to a video source, you could cause problems by switching the projector on and off without time to cool. Not a good idea.

More importantly, I suspect that you might not be able to do this anyway jus twith a hard trigger on/off for a power relay since most projectors do not have a "hard" on/off, but rather operate from IR or serial commands.