Hello All, thanks for the valuables infos found on this forum. I repaired my TXP50VT30E that ran countless hours over its 12 year of service. I was not ready to let it go.

I replace the 2 rows of IGBT along with the two diodes, all shorted. None of the resistors nor the drivers IC were dead.
As mentioned somewhere about the bad contact made between the board ground plane and the TV chassis, these points were all covered by a black compound. Don't know if it's the result of the voltage across or a chemical reaction between tin and zinc, maybe both. It has been told that these...

Hello Whippet, I would wonder about max switching frequency rated @20kHz max.
Don't know switching freq of panel drive, but has to be at a few hundred kHz.

Best...

Hello,
I'm Tinysprings,

I'm interested in repairing my Panasonic Plasma TV that went just out after 13 years of flowless service.
I'm not keen to garbage it right now. I didn't study electronics but tinkled quite a lot with valves on audio amps and MOSFET HV power supplies. That could do the trick with a some guidings.
Thanks for being there !