I have had the set for over 4 years with no problems. Tonight I got home with the temp about 55F due to heat prob and the TV would not turn on and had the blinking green light. I have read all of the posts on the blinking green light. I removed the DCM and looked at the capaciters. They look ok. I do not have an input button. So I don't get the code menu. What is the "input" button? Could my problem be the ambient temp?