Picked up an Omega Race mini(minus PCB) two days ago finally after waiting a couple weeks for my schedule and the sellers schedule to ease a bit... (We both have kids so free time is at a premium!)
I picked up an Omega Race PCB off eBay last week that was supposed to be damage free in the battery area but of course it was not. (there's a long story about that here)
At any rate, didn't get anywhere with the seller so I started working on the PCB because it was a decent deal and the damage wasn't horrible. Replace two sockets, added a socket, needed two new 2114 RAMs and a new 5101 RAM, and three new resistors. I'm probably going to change four more resistors and two diodes also since they have a little rust on them.
As far as the damaged traces went, I cleaned them up, neutralized them(even though I don't think the acid was active still), and added a bit of solder on top of them where I could to try and protect things a bit.
You can tell the battery was removed right after it leaked because the damage was so localized.
I had to post a video because I was so happy it works!!! It's a crappy video... but you can at least see the game working!!!
http://www.youtube.com/watch?v=GtAAa3DFaQQ
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