I am so relieved, frustrated and happy all at the same time. The ground fault is caused by improper wiring in the wall plug. They put the ground on one of the power prongs! I am guessing it worked in the seller’s place because they had ungrounded electric?

After hours of replacing fuses, blocks, filters, messy solder joints, worn wires, interlocks and anything that even looked funny it was the plug.

We put her back together, rewired the plug and played Ms. Pac-Man.