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Re: tv not working
I think you have a bad flyback transformer and shorted horizontal output transistor.
The flyback (high voltage) transformer shorted and caused the transistor to short.
You need to get a tech to check it for you and get an estimate. The noise you hear is the power supply singing telling you that it has a short on it's load.
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Something has shorted in the set causing the power supply to make that buzzing sound. Most likely the short is in the horizontal circuit. The horizontal makes the high voltage work which in turn lights the picture tube.
The Ballast is the next logical step but more often the Color Wheel has gone bad. Try this first. Make sure that the Lamp Door has been reinstalled and the screw has been tightened.
Next while you are at the back of the set listen for a short buzzing sound while you turn ON the set with the remote or have another person turn it on. If you hear a short buzzing sound then your Ballast is ok. The reason the lamp does not turn on is because if the Color Wheel does not spin up then the Digital bd will not let the set turn on. Color Wheel part# is BP96-00250A. Ballast part# is BP47-00008A
I wrote a guide on how to fix this problem. It's really easy to do and only costs £1 (about $1!). You can view, download and print the guide here - http://www.scribd.com/doc/13515584/Polaroid-TLU03711C-Replace-Capacitors-Guide