Will replacing my Y-main board get rid of the plasma "buzz"?

[Cannikin]

So I've got the back off of my TV for other reasons and while I was there I found the source of the constant buzzing sound coming from my TV for as long as I've had it (see attached photo). If I replace this board is there a good chance that buzz will stop? Or is it just the nature of that component that it's going to buzz no matter what?

$66 on Shop Jimmy would be a small price to pay to never hear that buzz again. Or just soldering in a new one of whatever that component is.

Rob

[SteveNielsen]

Re: Will replacing my Y-main board get rid of the plasma "buzz"?

Appears to be a transformer to me. Does it get hot? If you press on it does the buzzing stop or decrease? If it's getting hot it may have shorted windings and needs replacing, if not and the pressure stops the buzz then the core or winding may be loose and you could try injecting some epoxy or other cement into it if possible. It looks like it is glued up pretty good already but that doesn't mean something hasn't worked loose inside anyway.

[Cannikin]

Re: Will replacing my Y-main board get rid of the plasma "buzz"?

Appears to be a transformer to me. Does it get hot? If you press on it does the buzzing stop or decrease? If it's getting hot it may have shorted windings and needs replacing, if not and the pressure stops the buzz then the core or winding may be loose and you could try injecting some epoxy or other cement into it if possible. It looks like it is glued up pretty good already but that doesn't mean something hasn't worked loose inside anyway.

Left if on for about 5 minutes and it got slightly warm to the touch, but I wouldn't say "hot". A couple of the heatsinks surrounding it got uncomfortably hot, but I would expect that.

The cable that runs along the top of the screen from the Y-main to X-main board (it's the wider one at the top right of my photo) got pretty warm...is that expected?

[Glitcher]

Re: Will replacing my Y-main board get rid of the plasma "buzz"?

All Y-main boards will come with a slight buzz, it depends how well they're built. But you should make sure all the screws that hold them in are nice and tight, if they aren't then it'll allow the board to vibrate slightly which magnifys the buzz.