I finally got a chance to put the G68XXV into the my main theater system.

I used to have 561 and had the 12V trigger from it to my 7-channel amp and it works.
However, I'm seeing different behavior on the G68. The trigger is set to High on all the Sources.

But when the G68 goes on standby, the 12V trigger remain on high, so AMP never turn off.

I thought 12V trigger suppose to toggle High/Low.
Does the G68 implement the 12V trigger differently? It's always on?

Main: G68XXV, ...