You have identified your camera as a CGo3. But you mention it in relation to a Typhoon H and you earlier mentioned a slip ring, which the CGo3 does not have. Are you sure your camera is not a CGo3+ for Typhoon H instead of a CGo3 for Q500?
I don't have the Yuneec wiring and parts schematics. Have you looked at the CGo3 (or CGo3+) section of the Table of Contents attached to Way To Fix Drones project to see if anything there is helpful?