I have sound but no picture. This happen all of a sudden turned on tv no picture, had no lighting, no storms, no power surge. However a couple of times in the last 2 wks when I turned on the tv, the picture was distorted looked like you were looking through a bottle, picture was rounded and the colors were off. Turned tv off & on and it cleared up. I did try to unplug the set, let it sit for 2 days same problem.
YOU HAVE A BAD CONVERGENCE IC ON THE CONVERGENCE CIRCUIT BOARD-THIS PART CAN BE REPLACED ,SAVING SOME MONEY,,COULD ALSO BE A LOOSE CONNECTION ON THE IC...PROBABLLY NEED TECH ON THIS ONE --COST 'BOUT 100.00 TO 125.00!
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One of reasons your tv not working, the thunder storm /lighting possibility has burnt your Tv micro processor. get a technician to check the power supply section too because during the thunder storm your TV circuitry received excessive voltage .
If is the main processor is burnt you have to change it for the TV to work .
A power supply section problem is what your experiencing which is a part of your television set. A defective MOSFET or switching transistor could be a problem that holds the power of your television. This is a very fast switching component which is very sensitive to current surge. A sudden surge of electricity may have caused this component to malfunction or become defective. A qualified electronic service technician can figure out the problem.
Hi...I am sorry to say that I had this exact problem. It ended up being the upper and lower panel drives. I contacted Hitachi and even though my unit was out of warranty, they agree to pay for parts. I paid for labor myself, and it cost me $199.95.
Good luck with it...let me know how it turns out for you.