Hello all... can use some help diagnosing issue

Ok, i just returned from a backpacking trip. Before my trip, i was printing something, once it completed, it parked the print head like normal and actual powered it's self off. Never had that done before. But it would NOT power back on. So, thinking power supply is out. Got a new one, hooked it up.... it turns on, but still is wrong. First the bed will not heat up. Second, i can't get the hot end or part cooling fan to turn on. So I quit trying anything and stepped back.... is it possible that the board is damaged? The hot end will start heating up, but the fan will not kick on. Anyway I can confirm my theory about the board or any other ideas or suggestions?
Thanks

Jim