Mine is exactly the same model & date; only difference is mine takes quarters.
And, I have the exact same scrambled screen problem, I think.
See my post titled P&M Coin Keno: this one won't be easy! in the Video Poker
section, the last group "Other Games." I'll bet my photos look like yours.
Notice there is no RAM battery, like most machines; it has a RAM chip with built-in battery.
That may fix the problem, but look for bad components & burn marks on the board, again like
my pictures. I'm sidetracked by a popped monitor, but I'll do what I can to fix yours & mine.
1. Questions: Where are you located? I'm in Portland, Oregon.
2. How comfortable are you with replacing soldered components on your board; any experience?
3. Do I understand you to say you don't have the Reset key, or you don't have the door key to open the machine?