Thanks for those suggestions, I did all that but the blinky light persists. I rolled up my sleeves and dove in to try to troubleshoot. I ultimately found the electrical source was coming from the main power supply. Inside I found a leaking capacitor and another bulging one that hadn't yet started to disgorge itself all over the board. I'm ordering new capacitors (will replace all of them) and then we'll see if that was the problem. If not, I may need help from one of my electrical engineer friends to help isolate the offender.
Again, thanks for your help!