HobbyCNC

PRO Chopper Driver Board

Now we are ready to install the last of the filter capacitors. These three 680uF capacitors go at positions C12, C13 and C14. These capacitors are polarized, which requires them to be orientated correctly when installed on to the board. The longest lead of the capacitor is the positive, which should be inserted in to the hole on the PCB labeled with the "+". The body of the capacitor has a "—" marked on it to assist you in identifying the proper orientation.

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