If it is a power supply issue go directly to the Manufacturer FSP USA. Get in contact with the RMA department and for about $20 dollars plus shipping one way you can get your PSU fixed. Turn around time is about 3 to 4 weeks so be patient. Once fixed they send you an e-mail with tracking info. I did this an probably saved hundreds of dollars. The removal of the PSU from the TV is pretty straight forward, 4 connectors and just a bunch of screws. Keep track of the screws and where they go also take a pic of how everything was connected to you can reference to put it back together. One warning stay away from a company called Discount Merchant to try and buy a new PSU the sell refurbished junk that does not work. I tried buying from them a replacement PSU that was DOA and they did not want to refund my money and it was a huge hassle and I had to involve the BBB and my CC company to get a refund. Save yourself the nightmare and go through the Manufacturer. Below is the email contact info incase you cannot find the website.

FSP USA RMA Services" <[email protected]

Bizznyc.

One or more of your Electrolytic capacitors located on your power board had to be replaced