Quote:
Originally Posted by Penthode
I am still not clear about the hum frequency on the screen. The distiction is important because 60Hz points to a heater cathode problem and the 120Hz points to a power supply problem. Is it possible for you to post a picture or two of the screen with the hum problem?
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Not easy to get a picture of what I'm talking about, this is the best I can do.
It's almost like ghosting. I can barely see it, but I know it's there. Whatever this is, it's related to the ballast overheating because both issues showed up at the same exact time. I figure something is loading down the power supply, which throws everything out of whack.