Hi. My sony is the same model. About 6 years old. I think I'm having the same power up failures. I opened it up and turned it on, but I hear it click on at the power supply and then I hear a short buzz like something's shorting out. I tried to figure out which board the sound in coming from, and to the best I can tell, the shorting sound comes from the middle ckt board. Do you think this is a flyback problem too?

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