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Reply to "Preventing old protosound 2 (5 volt) board from blowing?"

nycboy posted:

So it's just a design problem? **** upgrading the sets will be alot. The route cause of it is the capacitors? Can I just replace the capacitors on the train and may help survive for a very long time?

Not really.  There are many causes for the boards to fail, it's just that I see this one particular cap failed more than any others on the board.  You can't get to most of the caps to replace them, even if you wanted to.  It so happens that if you prop the boards apart enough to reach in with a skinny soldering iron, you can replace the 330uf 35V cap, so I do that whenever I see the WINCAP brand.  I replace it even if it doesn't appear to be failing, I strongly suspect that brand was one of the ones affected by the Capacitor Plague of the early 2000's.

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