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Hi,
First of all check the power supply of your tv. Here i have added a video which will help to know, how to check the power supply of the tv. If power supply is ok the the tv have problem with the mother board.As mother board is not repairable you have to go for a new one.
check the video Testing LCD TV Power Supply BoardsSTEP BY STEP www.electro-medical.blogspot.com
Great set - you were on the right track but ........
U will have to do what I did on these new sets. Google has dynamite blogs on the workings of these sets, what each board does, and what are the symptoms of a problematic board. Knowing exactly what your tv is doing and not doing you can use these guides as a wonderful way of finding out what other boards could be at fault besides just your power supply. U have nothing to lose and all to gain with the free info. Good luck.
Switch PSU between bays
Use spare PSU
If server is still not working PSU backplane needs to be replaced.
IS spare PSU sovles the issue, then it was a faulty PSU
U know basic electronic's,and u know how to do soldering?Have soldering iron,tools and solders?The power supply board,the board that the power a/c power cord plug into it.That the power supply board have these parts call capacitors are dead.These capacitors alway bulges up on it top or puff on it top.Check all around the power supply board and it supporting boards.Replaced these dead leakage bulges up on it top or puff up on it top.Or tries websites like Shopjimmy.com,Ebay.com to buy and replaced the whole refurbish power supply board.
Power supply board is dead.Replaced the power supply board.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.
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