Thank you. I have not been the VTX with power, I put it in the partsdrawer with the antenna and it fell off over the course of atleast 1year.
The antenna must be somewhere in the drawer (easy Fix), but the main problem is I don't know what soldering point connects to what.
Hard to tell from the pictures. Red to the VTX is +5v, then black is ground, yellow is video. Usually the camera runs off those three wires coming from the VTX, I couldn‘t see where they might solder on the camera. The only possible spot was the three pads on top.
A simple 200Mw AOI camera and VTX is cheap and simpler to set up if this one turns out to be no good.