Panasonic Plasma TH50PX20
 

I have a Panasonic plasma tv I bought new in 2005. The other day when I turned it on i can hear the relay click twice to turn on but now clicks a third time and the red light blinks 12 times pauses then blinks 12 times again. I did some research online. I removed the back cover and checked the fuses. All okay. I tried to isolate the circuit boards one at a time by removing the connections to the boards. I was able to get a picture back but wasn’t able to turn off the power using the front switch. I bielieve the board was labeled dg. I started checking more but was unable to get the picture back. I hate to get rid of this tv since it had such a beautiful brilliant picture. Has anyone have experience with this model. Thanks Fred