Need to fix Casio CTK 471 Any help?

[shadowkami]

I have a Casio CTK-471 Keyboard. When I first got it my mom was looking for an adapter for me. Unfortunately she got an adapter with too high of a voltage and fried the motherboard. When I asked my uncle about it he said all I needed to do was to rebridge the connection. But I don't know exactly how to do that. I was wondering if any of you knew or let alone have any alternate fixes. I would like to do it myself without paying money to send it to casio. THanks!

[Enzo]

Well, so far we don't really know what is wrong with it. You claim you used the wrong power source and it "fried." maybe. Uncle says "rebridge" a connwection. OK, which one? If the wrong power truly burnt something, it will take more than solder. I assume that is what uncle is talking about.

Many items that run off adaptors, like Casio keyboards, have protective diodes inside, and they burn out protecting the rest of hte circuit. If that is the case, then a new diode will fix it. That means determining if that happened, and which diode is the one, then soldering a new diode in place of the old.

But all that is a guess. If you sent 20 volts through where 9 volts belong, it is possible most of the integrated circuits on the board could be destroyed.

On the other hand it could indeed be something simple, but we can't tell that from here.