I think he has a short between upper and lower plate, popout cable, or potentally the lower plate to the dist casting. I would remove the cam screw, cam, upper plate, and look for problems there, using the volt/ohm meter to check for voltage and ohms scale for short to ground. Also.. if it's a genuine popout remember the switch when off not only breaks the contact of power to the dist it also grounds out the points. that's part of the theftproof feature.
A volt'/ohm meter is your best friend right now...
Larry Shepard