Hi Nick,
I don't have any experience with video, and I'm trying to use the XC-999 for astrophotography. I do have the XC-999, but I don't have the CMA control box. From your post, and from reading the camera's manual I understood that the camera streams the video as soon as the 12V is supplied to it. Does this mean that you can use pins 3-4 and 9-10 to output Y/C signal to a S-video input? If that is the case I can make my own simple circuit to accomplish that, but I'm not sure that this is correct. Could you please provide some more info?
Thanks,
Darko