I have purchased a power supply led board and a main board board for my Samsung Tv and that didn't help. The light flicker on then go back off


your right there will be a bad caop in the power supply the can will have a domed or puffed top the value is printed on the side replace it and it will all set to go

You will have to isolate the main board and Inverters.
Unplug the inverters and turn on the set.
If it "turns on" then try re-connecting each inverter seperately to see if only one is causing the problem.

Did you replace the LED light strips? You have a bad connection on the LED light strips or one LED itself is going bad.

Yes based on your testing it appears that the power supply is at fault solely and you can opt to attempt a repair or replace it altogether. Unfortunately you will not be certain that the main board does not also need to be replaced until you have repaired the power supply.

Most likely the CCFL inverter has been the problem all along....

Lightning damage can do a # on LCD TV's. I've seen cases where it took out power supplies and main boards at the same time. I'm not one who likes to use the "shot gun" approach. You would need to get the set professionally diagnosed in my opinion. Where did you get the main board from?? Are you sure it is a working board?


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