There are internal adjustments a tech makes. Be sure to call it in, get an estimate. This was posted widely in AVS Forum so I'll stop here.
PN50C450B1D model with red pixel issue. I downloaded firmware update and the problem was fixed but changed to a different problem. The first set of red pixels were bright red and seemed relegated to certain images, like peoples faces or hands, not the entire screen. Now, that problem is fixed but there are duller red pixels that cover the entire screen and are not image specific. Help?