Logan, glad all worked out. To prevent a future occurrence, make sure you connect all power cables, SDI and HDMI cables Before powering up the camera and monitor. Personally, I would not take a chance on the Y cable, even though it works in many cases, the few where it does not can lead to equipment failure again. The discussions I referred to previously were on this Forum and the BM User Forum, not this thread discussion. Play it safe and get a fused and/or circuit isolated battery distribution box.

I am really impressed Juice Box replaced your camera and Video Assist.
Cheers