My house was hit by lightening and i have no input signal but the screen still works and it has good set up picture and i'm not sure if there is sound as of right now
everything appears to be normal just no picture and no input
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I would look at the source for the Hd signal as being the problem--if you are using some kind of cable or sat box it will deliver the signal to the DTV input on the back of the set--this is the HD input for this set.
It is possible to have a problem like you describe be one in the set--but very unlikely----have you looked on that green signal board for any signs of Glycol?
Anything that will produce a 1080 signal to the DTV input should tell you if the problem is the set or the source of the HD signal that is causing the problem.
If you have questions or need advice let me know--I am here to help people.
if this information has helped you rate this solution as i do this here for free.
Does your system have hdmi input. If so hook up cable box, if it has hdmi, to the tv and see if that works. If that clears up your problem you have a problem with the av board or boards. I have found that most of the newer systems do not like the voltage and frequency from xboxes, playstations, or computers very well using the rca out and in. Let me know what you find out. I might have a better solution for you.
Finally got a tech to come out to the house ($99 to diagnose). He determined it was the Doubler Board. Got a quote from this company to repair it for around $800. I was able to watch over his shoulder. The board is really simple to replace. I just need to find it.
well..there are two power sections of that board..near where the power enters the board, and also, where it delivers the signal to the screen. Both may have connectors that are wearing out, and this causes heat buildup on the board near the edges.