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June 16, 2015 at 5:56 pm #38476
On the official version C7 is not populated. If you want you can put a 0.01uF capacitor there. It’s a filter cap and the exact value doesn’t matter very much.
D1 should be in the direction that the anode (positive) is connected to the fuse, and cathode (negative, with a strip on the component) is connected to capacitor C1.