RobG 1,892 Posted December 20, 2011 Share Posted December 20, 2011 Looks like we have to be more careful with the silk screen layer. The dark spots on the paint are metallic residue. Now think what would happen if your artwork was very close to some line voltage pins. This board was made at Seeed and there are other boards with similar issue. Just FYI. bluehash and GeekDoc 2 Quote Link to post Share on other sites
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