I have a Panasonic CT32G34A television. It will not power on but there is a high pitched sound coming from where the power cord goes into the back of the TV. I have checked the fuse and it is good. The only way to stop the sound is to unplug the unit. When Plugged back in after several hours it is still doing the same. Any fixes an owner can perform?

Not likely.

More than likely it's the power supply board, but I have no information. Parts and board replacements are available from Encompass Parts Distribution