Try unplugging the power cord, this might reboot the tv. I have replaced the power supply and or capacitors on power supply. and sparked them back to life.
SOURCE: panasonic 50 inch plasma
You should call for warranty service. If the set is very new try to get it exchanged.
There are some very heavy duty power supplies and many high power matrix drivers used in Plasma sets.
The description sounds like the noises are very loud. It is normal with any of these TV sets, if you put your ear right up to the back of the set at the vent holes you will hear some noises. These would be some acoustic harmonics from the power supplies and related circuits.
I am wondering if it is possible that there is something that is becoming less stable. If the set is working very well without any failure, so-far this is a very good sign. Before it gets to be a problem, I would have this checked.
On many models of these sets, they use fans for cooling specific areas. A bad fan can cause noise.
Jerry G.
SOURCE: Help with Pioneer Elite Pro-1130HD 50 inch
just wait it, because it is processing the display data
SOURCE: 50 inch samsung tv clicks on and off when turn on
the Fuse needs to be Replaces, contact nearest samsung service center. would cost just $1 trust me
email me if you need any assistance ... [email protected]
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