Refrigerator will not do anything

I have a whirlpool side by side refrigerator. The compressor is not on, the fan doesnt work, the digital readout inside fridge for the freezer and the fridge temp is not lit up. The only visible power is the 40 watt lamp inside the fridge is on. I have been told that it is the main board, and the display board, can you tell me if thaqt is correct? Please help…