Mysterious 40v multimeter reading on AC appliance chassis (US 120v)
If the projector has a metal case then it should be grounded.  Buy a new three wire appliance cord and secure the green wire to the case.  Make sure it is always plugged into a grounded receptacle.  Then you can test the current draw on the ground wire.  (use a clamp type meter) This will tell you if you really have a problem. The tests you site mean little or nothing.