Just one question. Does the TV remain ON as long as u keep the Power Switch pressed in the ON position? I have seen plenty of faulty ON OFF switches in SONY! Just check if the above sympton is true. If yes, then it is a simple matter to get the switch replaced. If you are a good Handy man, and are used to neat and clean soldering, it is a D I Y job.
If your not a TV or solid state specialist, for sure as a TV set is no place to be experimenting inside of as it has no user replaceable parts inside them
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