Thank you, Sir. I appreciate the help. I have a Bally 5500 ProSlot 25 cent slot machine. it was taken out of Harrah's some time ago. I got it from a friend who's no longer with us. Since my post, I pulled the mb and did a jump on J10, covering both posts, reinserting the mb, I pushed both the test and the pseudo coin buttons and held them down while turning inside power switch back on, holding buttons for about 10 seconds until the CL C or the CH C reading displays, which it did. I then shut it down, pulled the mb and changed back the pin(s) configuration back on J10. I re-installed the mb, turned power back on and all is good.
I don't think that's the way the manual says it should be done, but everything seems fine.
we shall see.
thanks again for the help. It was appreciated.