I have a Creative speaker board for repair. I'm confused with replacing the capacitor. I have desoldered the capacitor and brought a new one. The circle in the PCB which represents the cap has a dark and white part. Which one is positive?
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Electrolytic capacitors usually have a stripe down one side (with minus symbols on it) that identifies the negative leg.
You have several other capacitors in-situ on that board - and can see the light/dark board marking under them. Use them to identify light or dark as negative.
From the pic, I believe dark is negative.