Samsung side by side -dead-

I have a 9+ year old Samsung Side by Side RS2556SH refrigerator that quit on me after a power outage. Power came back on and I got no display on the panel. I called 1-800 SAMSUNG and was instructed on how to reset the display on it. I set the desired temps for the refer and the freezer compartments and still had nothing. No compressor, no evap fan (in either compartment) but the ice dispensing door relay woluld click when the button was pushed. I installed a new control board, and obtained the same results. Any ideas on where to start troubleshooting?:confused: