Year-old Samsung 50" Plasma - No Power

[NJRoadfan]

Originally Posted by drussell

The problem with this one here turned out to be a couple of shorted FETs (actually IGBTs, but whatever) on the Y-Main board... I'll have to order some from Digikey tomorrow since they are fancy super-high-current (220A), high speed switchers specifically designed for use in pulse applications in PDPs (like the ERC) so none of the usual stuff I have laying around is going to come even close to surviving in that circuit.

Funny, thats the same circuit that usually fails on late model Panasonic PDPs. I wonder if insufficient cooling has something to do with it. Many of the earlier panels with fans don't seem to have FETs blowing up on them.