I did some basic continuity testing and the connections seem ok so far.

- a/b pin 8 is isolated and connected to 12

- sense wiring seems ok - 25 is isolated and 24 is connected to 20 on the analog board connector

I believe I mis-spoke regarding the "shutting off." It seems that the signal generated degrades to such an extent that the monitor simply "gives up." Sorry for the ambiguity.

I am able to confirm a resolution of 640x480@60Hz in the Monitors and Sounds control panel, if that helps (while I can see it...)

Thanks for the quick response!

Matt