Hello, We have a Plasma TV, item PDP TV, model EPT-4201AP which has your mainboards EPT4201AP. There is no image in any of the inputs, but the screen lights up with a very noisy blue screen. Upon pressing MENU or INPUT a even more noisy smaller white window appears. No text whatsoever is perceptible. Is it possible to supply the schematics or a quotation for replacement boards? Thank you Nuno Tavares