Thanks for the most informative post on this. I was given a PT56WX33g that is only a few years old that doesn't work. It was turned on and had no video. After reading all of this info,what are the chances I have this convergence IC problem. I noticed most posts here indicate a change in colors,warping,bowing,etc. There hasn't been too much talk of these just failing instantly. I,ve checked for the obvious (fuses,blown resistors)and haven't found anything.This is too nice a unit to toss if it's farly inexpensive to repair. Thanks again for this info!