If you think it’s ignition, you want to contact this guy and have him look at it for you. He is the guy who ran the R&D for Mallory for all the digital boxes. He’s retired now but he still does repairs for a decent price.
I don’t have any 685 boxes laying around or I’d send you one so you could test it.
[email protected]
Send Dave an email and he will hook you up.
