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The lightning stroke has been effected to the main digital board to your TV. It will be best to replace the main digital board as card basis, rather than trying to repair it. Before replacing the board, a through checkup should be done. Contact any expereienced service technician for help, as this work is a very skilled one. No body can predict about the damages to a lightning stroke, as there will be trillions of voltage present for every stroke, and even a slightest voltage can damage so many components in a TV like equipment, as it is designed to work for 110 or 220VAC.
Hello It is not peredictable about which part/s have been damaged by a lightning stroke. Just see, there will be trillions of volts present, when a lightning stroke hit earth. All the electronic devices are meant to work by 110 or 230VDC. How can one say, which part to it might have been damaged due to lightning stroke? A through checkup should be done. Sometimes, the repair cost may exceed by the price of a new one.
To answer your question: Your video tuner board is going out.
This part will need to be replaced by your TV Repair shop, unless you can do it yourself. I have provided a link to the board on eBay!
I have found the main cause of this is poor solder connections on the high voltage flyback transformer. Just reheat these connection and add a little solder to get rid of the rings on the solder
Ceck CP150 and CP114 to see if the tops are domd eve slightly if so they will need replacement. They are both located on the deflection board where the flyback is also located.
you will need to replace FL231, DL231 and CL230 all located on the deflection board . You can get replacements at the following link with free instructions on how to do the repair. the parts are all listed under the RCA parts category. Heres the link http://servicemanuals.vstore.ca/
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