Hello Frank.N,
Your message make me feel better, i was affraid that CPU is gone
I will check cables between CPU and discs.
I will try do to what you tell me with the battery, and i will install rack for battery like many person do, i think it's better.
Next etap after it, will be to find what happen with coins ramp. Coins stuck in mechanism, but mechanism is full of WD40, it's smell.