I pick up a Gottlieb El Dorado yesterday.
The guy had everything gone through 10 years ago & then it sat for the last 5 years.
Only some light come on in backglass... tilt is lit. No pf lights.
Nothing happens when credit button is pressed.
When I tap start relay on bottom of cabinet... there is a loud buzz & it won't stop until I turn off power. All quiet when powers back on.
I've cleaned 3 Jones plugs in backbox.
Any help appreciated.