Originally Posted by scothernman
Sunslinger it is difficult to say if the issue is with some panels or the time the Panel has been used. One of the board member wxman stated that his panel is over 2500 hours and the temperature without fans is 33C without fans (perhaps he is lucky). Many have had the circuit boards 1 &2 or 3 giving up the ghost in less than a year. It is best to decrease the temperature of the circuit boards as far as possible and go with what the Guru of exhaust fans JR walker showed over a year ago for the 64F8500 and you will enjoy your panel for years to come without regrets. 44C is a a destructor for the electronics inside! The Heat sinks cannot dissipate the heat enough as they are right on the back metal cover.
I think as the tv gets older, the panel temperatures get cooler. When I first got the tv is was close to 45 degrees, so I added one fan. Now after 2500 hours, it doesn't run near as hot. Never gets out of the 30s, with or without fan on. My guess is when new, high cell light generates a lot of heat on the panel. Of course panel temperature should not be confused with the temperature on the back of the tv near the boards. The back is still hot to the touch, and thus I still run the fan. I don't think panel temperature is something to worry about, even when it gets into the 40s. The temperature by the circuit boards is more critical.