Days ago, I lightning strike went into my notebook throught the TV external USB card. Now my notebook is not running anymore...I went to the technical service but they could not find the problem,,,Could be the mainboard???
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We can't predict what might have been happened during a lightning strike. If the TV is dead now; the main power supply regulator board [SMPS] board is fault. If so, you have to replace it first. then only we can get information about the condition of the main board. If the TV was connected to external Ariel or cable; before the lightning stroke; the possibility to damage to the main board too is there upto 80%.
In fact, if both of this boards are damaged, it might cost around 2/3rd of the total cost of a new TV.
The decision left to you. Do whatever you want.
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
May be your picture tube got damaged in that lightning. This may be an effect of the magnetization of the picture tube due to a huge electric current passing near it. Try demagnetizing the tube and if it doesn't work get it replaced. Try having a properly working tube of an older television as modern picture tubes lack quality.
I have the same tv, but the problem I have is the picture is shifted to the right and can not correct it. At 1700, its probably not worth fixing because to expensive to repair, they dont make it anymore
un plug the tv for 3 minutes to reset it, then plug it back in. if this dont fix it, please get back with me and tell me if you had any power outtages or surges. some times lightning strikes can burn out the tuner when it strikes the cable line.
What exactly is the problem with the set? Why not just fix the board that is in there? Usually, only a lightning strike that completely burns up the board or a coolant leak from one of the picture tubes that covers the board and corrodes through the parts and traces are the only reasons to replace a board. Explain exactly what you see or exactly what is wrong and we will help you from there.