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On a lot of the newer BPC sets, I find that lightning will take out the fuse and one (or more) of the bridge rectifier diodes. Sometimes, the voltage regulator IC or switching transistor will be shorted and there will sometimes be a burnt trace or two in the power supply. If it turns out to be anything deeper, I'd junk the TV.
I've seen lightning strike a TV and only do minor damgae and I've seen it strike a TV and literally turn the PC board chassis to toast. And, I have done extensive repair to lightning damaged TV's; but, that was back when a BPC TV was still worth the effort. Now, I wouldn't go past the power supply.
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