HobbyCNC

PRO Chopper Driver Board

Now we can install the first of three voltage regulators. The first regulator is the LM317HV which goes at position U7. Make sure you install the LM317HV and NOT the LM317, which will be installed in a later step. The tab on the back of the regulator should be towards R15. The silkscreen on the board shows the tab as a wide white band.

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