I just got a baywatch a few weeks ago, and the large dmd was dropping out and then nothing.
On research discovered that where these d,ds pull their power from is unreliable, so if a cable upgrade ($10) from pinball life is installed 9/10 problem may be solved. My existing cable has been hacked and appears to be the original and loose. I am putting a order for one of these cables this week if you need one.
Hope that helps and sorry that's all I can help as new to the sega large screen.
