Popped pre-amp unit - mystery

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Gliding Dutchman

Guest
I am a bit baffled...

I have a Fostex mini mixer that I use to do recording with. It is a simple 12 volt DC powered unit (MX12) and uses a 'wall-wart' PSU.

Earlier I connected a 12 volt DC battery to it and it blew! Why? I guessed that it would work but something went wrong... Eish!!!

It now has a hum on both channels and no sound is passing thourgh. What the heck do I do now?

There is no visible damage inside!

GD
 
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