Today I was hooking up my stereo in my party bus and I accidently applied 24 volts to it. The fuse in the head unit did not blow, but my changer started smoking. Now when I hook it up it powers up and everything, but my head unit does not see that it is conncted. I checked the able and everything is good there. I opened up the changer and everything looks alright. I do not see any burnt chips or anything. Anyone have any ideas?
Do you mean ideas other than "It's fried?"
Smoke coming from electronics is hardly ever a good thing.
As we all know, microchips run on magic smoke. If you do something that they don't like, the magic smoke gets out, and the chip doesn't work anymore. Sounds like you let out the magic smoke.
If I had to guess, I'd say that the damaged component will be the processor in the changer. That's the one that "talks" to the head unit, responds to commands, and controls the changer. This part is likely to cost a large amount of the new cost of a replacement changer. If it's under warranty, you might try getting it replaced or repaired under warranty, but do NOT tell them about the 24V thing, or they're just gonna laugh at you. It is also possible that more than one component is cooked.
Smoke coming from electronics is hardly ever a good thing.
As we all know, microchips run on magic smoke. If you do something that they don't like, the magic smoke gets out, and the chip doesn't work anymore. Sounds like you let out the magic smoke.
If I had to guess, I'd say that the damaged component will be the processor in the changer. That's the one that "talks" to the head unit, responds to commands, and controls the changer. This part is likely to cost a large amount of the new cost of a replacement changer. If it's under warranty, you might try getting it replaced or repaired under warranty, but do NOT tell them about the 24V thing, or they're just gonna laugh at you. It is also possible that more than one component is cooked.
well, you learn something new every day !
i anxiously await the 48V systems in autos -- this should make for some interesting developments out of Delphi.
i anxiously await the 48V systems in autos -- this should make for some interesting developments out of Delphi.
SupraGuy said:
Well I guess I was lucky enough to get the magic smoke replaced. It was a blown cap and a dead diode.
Then you were lucky. The cap probably blew (Big pop) when the diode allowed reverse voltage across it. The diode would be the source of the smoke. (Replacement diode has replacement smoke. 🙂 )
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