So I hooked up my Thayer's Quest boardset to my Dragon's Lair cabinet tonight and it's not booting up.
I used to have this working and the boardset has done nothing but sit in a box for 5+ years (actually probably closer to 10 years) so I can't imagine that something is damaged. I took a few pictures of my setup. Hopefully someone can see what I am doing wrong. The scoreboard doesn't get initialized either, it just comes up as you see.