And no matter what type of device or piece of machinery equipment you are using, how do you know when the mother board has gone down. You would usually notice this if your screen quite literally goes blank. Or if your operating tool simply stops feeding you with its necessary power. When that happens, most men and women with a reasonable amount of common sense will quickly check the electricity connection to see if it is switched on or the switch has flipped somehow.
But even so, this is not the time for tampering with the switch. Whether it is the electrical connection or the board, you will never really know if this is the case, but anyway, do not ever chance your arm in trying to test or prod devices that have simply stopped working. Rather dial up a qualified technician that can give the necessary circuit board repair. You do not need to touch your equipment until the technician arrives.
That is correct, you do not need to load your electric powered equipment into your own van and then head off onto the roads trying to find his location. He will come to you. The first thing he does is inspect your hardware, tools or mechanical devices. He will know soon enough whether it is the circuit board that needs repairs or replacement. And if the work is extensive, he may have to take your tools of trade with him for a few days.
And so it goes that it was not the circuit board at fault. There is something else. But this you would not have known. Only a qualified technician can set you right on this. So, that is what you do when your circuit board breaks down.