A520 not working

  • Thread starter Thread starter marco920
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marco920

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Joined
Jul 1, 2015
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ITALIA
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ROMA
Good morning everyone. I own two A520 modulators.
I managed to repair the first one, but the second one was fine and barely audible, but now it's inaudible.
I've verified that there aren't any broken, swollen black parts.
What could this be? What should I check? I don't know much about electronics.

Edit: is there anyone still alive?
 
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