On Nov 7, 7:46 am, "robb" wrote:
no shorts on any of the power regulator chips 5v L387 or the
L298s

and still get 76 ohm continuity between 5v an 0v ref.

Ummm, what's wrong with that? I = E/R: 66mA. This
(static) current isn't blowing the fuse.

TM