My Machine is up and running!
Thanks a million to Jim from MidWest Slots for reaching out and selling me a new MPU board!!!!!
Swapping in the new MPU reset my machine and I was able to progress through the 61 and 61_1 errors and now the slot machine is working normally.
The only issue I can see is for some reason I can't use the "Play 2 Credits" button after inserting 2 quarters and there is no music when the reels spin.
Perhaps there is something to that in the white button setup loop.
As a new slot owner I felt lost trying to troubleshoot this alone but you guys were quick to respond, friendly and super knowledgeable!
Thank you everyone for your help on this issue and for all of your replies!!
Please mark this thread as FIXED/CLOSED
Ikelly208