The machine appears to have been sitting in a damp place for a long time and there looks to be some battery acid damage but I've never really seen it in person. The game boots up, notices there is no stored settings, I can set the settings to factory (although the display output is missing some parts of the letters) and then it lights up like it is waiting for coins. Hitting the start button makes the "vroom" sound and then nothing changes. The CPU board letter is "0" and then I hit the CPU button and it goes to "E".

Unless someone replaced the battery holder (which means you would think it worked at that point) I don't see any damage on it.

I assume the traces are messed up somewhere but maybe this is worse? I am going to pull the board and check out the back side but I was hoping for a bit of direction as to where to go before I do that. Any other things to look at, tests to do, etc? Fuses look intact.

I can post a pic of the back side if I should pull it as a next step. I saw someone on ebay selling a repair service for the high speed version so $300 it seems or refurb boards for $500. Not sure what a damaged version is worth, assuming this is the issue and someone can fix it.

Thanks!

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Thanks, so I pulled it and in more light I can definitely see the trace issues and where the battery acid killed it. So now I guess my question is would this board be salvageable by someone who knows what they are doing? Better to sell it and grab a refurb one?

Here are a bunch of shots of the various burned out transistors and such:
https://goo.gl/photos/7mZB9Ry3Z1zySxnPA

Thanks terryb (hey Banning, my sister lives near there... bet you don't hear that often).

I assume that's fairly detailed work so probably not for the likes of me. I'll do some searching.

Darscot Yeah, we'll see what happens with that FF. I am just about done with my Cyclone rebuild so this will go nicely with that one... if I can get the board working or replaced

Thanks @terryb. Beaumont

I managed to grab one from Todd at Big Daddy just now. So at least I have something, if this one is toast. Then the folks on ebay who do the repairs said they thought it was possible to repair at their listing price, so that is another option. At least I'll have a working board one way or another.

ebay.com link: itm

I sent them pics. They say yes. I wrote back "you sure?" in much more detail.

I figured, wrongly probably, that the folks on ebay were probably well known here since they are REALLY specific in what they are repairing in that ad. I also spoke with Dr. Edward Cheung who comes up with searches for System 11 repairs and seems to be around these forums as well. So looks like there are a few people who might be reputable around who can do it. Lucky for me, I can just sell the board as is now if someone wants to pick it up.. posted it in the classifieds and on ebay. Then someone else can deal with restoring it

WAY beyond my knowledge to do, I could learn but this isn't the board to do that on, I think. I was able to sell on ebay and bought a bigdaddy restored board. The board I bought had a repair done that was a bunch of tiny wires and replacing some parts of the board that weren't usable (traces gone). Highly intricate work, could never do that myself. But it worked out, I got a working board and someone gets a board to repair.