Hi Dave, the 1st thing I'd do is get that darn old battery off the CPU board, you don't need it to work on the game. It could start leaking from the move and you don't want to have to deal with that too. I'll be watching this thread too (for the fun factor ), and probably post when you need tech help.

Steve
System 80, not just a job, it's an adventure

Keep in mind that using a magic eraser removes the original clear coat. That's why the planking and dirt goes away. Basically, you're removing the tiny cracks in the clear that are holding the grime by making the cracks in the clear wider. By removing clear, you're also removing the silk screen protection.

Steve
System 80, not just a job, it's an adventure

Yes, if the wax is water base, unless you have cleared the playfield with auto clear, avoid it. Anything water base will separate/lift the screen ink/paint from the wood.

Steve
System 80, not just a job, it's an adventure

What I do is repair any pop bumper to playfield wear and then install a adhesive mylar ring that's the same size as one of those platters there. Sometimes, I install one of those loose platters on top of it so it looks original. I'm sneaky that way.

Steve

I can't say too much since I like to keep all the original boards in my games if possible. It's the easiest for me since I know how to fix them and have the parts needed on hand.

Steve
System 80, not just a job, it's an adventure

Those black corners indicate that the tube still has gas in it, all Gottlieb display tubes have them. When it's out gassed or the nipple on the back of the tube is broken off, those black dots turn white. It may very well be that the display or the UDN6118 is near the end of life. What happens if you leave the game on overnight? Sometimes, I've seen that bring them back to life and brighten them up.

Steve
System 80, not just a job, it's an adventure