I have posted about my issue previously and spent God knows how long deliberating over it. Basically, Phantom 2, Zenmuse 3D gimbal, Gopro hero 3 black, VTX and generic monitor with built in receiver.Purchased pre assembeled. This worked fine for approx 4 months, then on one flight, nothing. No crashes, knocks or bangs - No snowy screen, just a black screen "no signal" displayed. After checking the channels, checking the monitor, checking the vtx, all seemed to be individually working fine. So reaching a dead end of my ability I had to admit defeat and send it away and pay for a professional to trouble shoot. I got this reply yesterday but am stumped by it. "on the video feed from inside the craft there is just one yellow cable connected, this I presume is the signal wire, but there needs to be a ground aswell, so thats missing and that would stop the video signal form being transmitted." Is this right? How can it be? I have not removed any wires at all and it used to work fine....... Keen to know as I don't want to pay for unnecessary workshop time to do something that doesn't fix my issue..... :? Thoughts really appreciated.