This sounds exactly like the "streaking" problem heavily discuused at Hometheaterspot, and I experienced as well. Pioneer has finally figured out a fix, which I had installed almost 2 months ago - no return of the green, somtimes big splashs of red, and blue lines.
I do not think a conditioner will change this. Not sure how you arrived at the 85% rate, but you simply should call Pioneer, schedule a repair and it will be fixed - for free.
I do not think a conditioner will change this. Not sure how you arrived at the 85% rate, but you simply should call Pioneer, schedule a repair and it will be fixed - for free.