I just replaced my close encounters driver board with a ni wumpf. Now there is a bit of humn coming out of the speakers. Any ideas on why its louder now and/ or how to fix it?
for some reason, the original PCB broke/failed/battery acid/who knows
along comes a new board installed and what if the original problem still exists
my guess is the pins inside the connectors needs replacement, but which one ?
i replace them all on every Gottlieb Sys 1 i rescue. big job for sure but then it will be good for at least another 30 years
The old driver board was fine. It had a bad diode from me trying to fix a bulb. Other then that it worked fine and apparently quieter. I just wanted to upgrade to more modern technology. But the hum is quite loud?
I don't think its a pin problem as all of the lights and coils work fine.