Re: 55 inch Plasma Viera (VIERA TC-P55GT30) not turning on. 7 blinking red lights.

I have. TC-P55GT30 that I purchased in 2011. Two years later the SC board and the power supply died. (7 blink code) I had the SC board serviced by a Panasonic authorized service I found on eBay for $85 and purchased a used power supply on eBay as well for $50. Then in 2014 the SC board died again. I sent it to another person on eBay who was also Panasonic certified and it was repaired a second time. Now last week I am getting the 7 LED blinks indicating that the SC board is again bad. I called Panasonic...