Plasma TV problem

[jbflash]

I have a Sony 42" KE-42M1 Plasma TV that plays fine till it gets warmed up good. Then it starts showing some horizontal noise streaks, then the picture brightness starts flickering or strobing. I was going to use some circuit cooler to track down the problem. Where should I start?

 

[jbflash]

I have made some headway with this problem. I directed a small desk fan into the vent slots over the power supply area and the set has been on steadily for several hours now.

 

[Resqueline]

Yes, plasma's generate a lot of heat, and without fan cooling the electronics will have a hard life. It seems the easiest, cheapest, and best way to solve the problem is to incorporate some low-speed quiet computer fans to move air through the set.
Internal or external is the question though.

 

[jbflash]

Thank you very much Resqueline. That seems to do the trick. The set has been on all day with no problems. I plan to replace the desk fan with a muffin fan mounted to the back of the set and possibly power it with a wall wart. I got the TV free on the Freecycle network and the family is tickled pink! Our other TV, a Magnavox 37" LCD died last night with a power supply problem, so the timing couldn't have been more perfect. Thanks again.