I do not understand the screen problem but I believe that since the screen is dimming, it seems like the picture tube is gone. So by your answer does it mean that the plasma does not have a picture tube?
My problem is that it is kind of a black out, the picture is very dim. Do you think I can get it repaired by someone local or do I have to contact the company? And can I just tell them that it is the problem for the sustain board? They say that they will charge me $100 to come and diagnose the problem. I wanted to avoid that. Please help.