They are beautiful machines when they work. I'm more into IGT, but found this one on Craigslist really really cheap. I really just wanted the uba-11-ss bill validator from it which I think I can use in one of my igt s, (think)..but when I made the offer, he told me take the whole machine. OK!! $200 later, and 5 hours round trip, and a sore back, and I got it home. I have the service manual for it, so maybe I can help you as well. I did manage to get around the cracked backup battery test last night. Don't know how. .but the BV came to life, the buttons lit up, the LED credits panel lit up, the main screen flashed on briefly, then the machine rebooted. Over and over and over. That's where I am. So, I'm debating on purchasing another mpu, (found one for $350) , or just strip the machine down for parts. The 2 power supplies alone are pricey.