I'm checking out an RCA F31672ET for a friend of mine. The TV was working fine untill she left it one night while we out for a few hours. When we returned the tv appeared to be off but there was a whistling/whining noise coming from it. The power button was non responsive so I unplugged it. The sound did not end abruptly but instead faded away within a few seconds. I have some experience repairing video game monitors & chassis & I'm fairly handy with my solder station but I have no expertise whatsoever in trouble shooting. If any of you out there have some idea of what this could be, I would truly appreciated your input. Thanks Vaughn
Most likely you have a bad flyback transformer and shorted horizontal output transistor. The whistling sound that you hear is the power supply telling you that it has a short in one of the circuits it powers. Most likely the circuit mentioned above. Stargazer
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Flyback & HOT..., I'll give it a try.
Thanks
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