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Reply to "Proto Sound 2 5v board repairs"

Stan, I'm guessing the ones in the middle with the smutz on them are the failure items.   I notice in the other photos the discoloration of the bottom board where something blew.  The one diode in there seems to have different banding, so it's likely to be a different type.  Perhaps measuring some from boards that don't show failures will yield a guess as to diode type?  On a diode test on your meter, a Schottky should show a significantly different voltage drop.

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