Update on the ringing. While the light flashes the phone still doesn't ring. Think I have a bad power supply. I removed the plastic cover that covered up AC1 and AC2. They show 117VAC, the out leads show 0 volts (blue wires) Looks like it goes into a 117 converter that is supposed to change it from 60HZ to 30HZ. Tried running wires from the output directly to the YS SL pair inside of the phone and it wouldn't ring. Is it common for these converters to go bad?

Thanks

John