Doesn't work anymore [after reversed input polarity]

sander2506 · April 12, 2015, 08:58:28 AM

I'm making a Retropie project in a NES Case i tested everything (it worked) but when i wired it up it began to smell funny, and the pi goes on but the switches and the led don't work. First they did..

Help..

Felix · April 12, 2015, 05:28:34 PM

Possible bad wiring?
I can guarantee correct wiring will not fry it. But ATXRaspi is not desgined to withstand inverse polarities. There is a guide at lowpowerlab.com/atxraspi that shows how to do it right and avoid the magic smoke or other issues, it's the best I can provide right now.

sander2506 · April 13, 2015, 03:24:48 AM

When i connect everything the pi goes on even whitout pressing the switch and the led doesn't go on.
Is that a indication that he's broken?

Felix · April 13, 2015, 07:52:51 AM

Yeah that definitely sounds broken/fried. It should never come on without the button press - ie just be a power passthrough.

sander2506 · April 13, 2015, 09:21:33 AM

is there a way to fix it?
What could be the cause of this? To much

Power or wrong wiring +/ - turned?

Felix · April 13, 2015, 09:55:56 AM

I don't know how exactly you wired it so I will refrain from guessing.
Fix it? I don't know what was smoked so again I can't guess how and if it's fixable. Probably not worth the effort and time, given the cost of the board itself.

sander2506 · April 13, 2015, 01:40:41 PM

I think i switched the power cables so + was - and - was +.
Stupid mistake..

thnx for the reply..

Felix · April 13, 2015, 08:38:06 PM

Yep, that probably did a bunch of damage.