Terrible video quality...

[TruColors]

My gimbal's motherboard fried last year. It was left I repaired until I finally took it to a shop last week. They replaced the gimbal motherboard. Since getting it back, my overall video quality is -terrible-. It flickers and isn't smooth. I'm not talking about FPV, I'm talking after taking it off the Phantom onto my computer.

Any suggestions?

 

[TruColors]

I disassembled the Phantom and found a loose cable. I tightened it back up and the video improved tremendously. There's still a problem though. There is a static line at the left side of video and the bottom half of the video flickers... a blue/purple bar that just overpowers almost half of the screen. Any thoughts?