I have over 10 years experience in electronic tech support. Currently I work for Viore customer service. Our customer service phone number is 216-454-0868.

I know this isn't what you want to hear, but the problem you've described can't be fixed with troubleshooting. Your TV will have to be repaired. There is a part that has developed a defect and needs to be replaced. The repair will cost a minimum $250 to $300 with parts and labor. If you're interested in going forward with repair, take the TV to a repair shop in your area to have the problem diagnosed. The tech will give you a copy of the work order showing the part(s) needed to complete the repair. Then you'll call the above number and ask to speak with Raphael at ext. 3115. The work order will be forwarded to the corporate office and they will contact you with the price of the replacement parts. You will be charged for the parts directly to avoid any markup by the repair shop. The part will be shipped directly to whatever repair shop you choose.

I hope I've provided you useful assistance and that this information allows you to make an informed decision as to how to proceed from here. I hope I've earned a positive rating from you today.

Please let me know if I can be of further assistance.