Not sure if this would be a fuse since it slowly petered out. Maybe a capacitor? I was thinking of replacing the power board but want to be sure that it may not be a typical main board type of issue.
It is a capacitor issue, when you charge or turn the tv on the capacitor has to charge, the capacitor storage of power, than it discharges to the circuit design for, one or more capacitors maybe bad or defective, there mite be a crack in the capacitor. take the tv into a dark room than turn it on to find what capacitor is bad, and what part of the module. look for burn areas on the capacitors and any type of ground or frame of the tv.
Testimonial: "Thanks you! I actually ordered a new power board prior to getting your answer due to my impatience so we will see if that works. If not, I'll try the dark room trick."
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Just as a follow-up, I received the power board and was able to take TV apart, replace it, put it back together and have it working within 30 minutes. One of the easiest fixes I've ever done.
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