Heres my version of the
standard Jem wiring diagram using a VLX91.. I have used this diagram several times.
the wires are colour coded and do not cross each other so its very easy to follow.
The green and shield go to ground of both humbuckers and the single coil black wire goes to ground also.
The pots are drawn as push-pulls so there is no confusiton about the orientation of the pot.
Each side of the switch is labelled in a light blue box and is drawn from the point of view of looking at the swtich with the blade arm poking out the top.
hopefully it will help you out... to see where you went wrong.
