If there were any issues with FBT there would be obvious symptoms on screen. I would have a poke around while the set is running with an insulated prod (plastic pen perhaps) to see what is making the noise. It might not be the FBT at all. Gentle pressure on each component should reveal the culprit. In Aus our line frequency is 15.625 Khz and I find I now have a notch in my hearing at that frequency.
|