Originally Posted by francoishaha
ok, so you only send the signal (green wire) to the OSD in and out
The video wire from your camera (color?) will go to the Vid In
side of the OSD and the video wire at the VTx (green in your case) attaches to the Vid Out
side of the OSD. Same thing if you want audio.
You should also pass the power wires through the Vid In/Out
pins on the OSD. The voltage pin simply loops through in/out and is isolated from the OSD system voltage so you can pass the 5v to camera through there. The ground pin connects to the OSD system common ground and is necessary to connect to the camera for the OSD display to work.