So my brother who bought this 2005 display from me called and said he turned on the set and has no picture or sound just a blinking LED. Tried searching but didn't find much, mention of some fuses, convergence IC, IC shutdown circuit and possilbe bad PD0074 power board. Anyone have a definitive answer for what might be the problem and if so, any idea about repair and costs. Can it even still be repaired? They can't afford a new display. Thanks so much for any help.