A650C1 Won't Start, Lamp light flashing, Won't turn off

A650C1 Won't Start, Lamp light flashing, Won't turn off

My question is about the 72" version of the same

ANSWERS:

@actionman1 thank you for the video. That clarified the lamp questions as well as the ballast. In that case I'd go back to the black screen with the lamp on is usually caused by a bad DMD board. I'd start there.