Many thanks for the information and time to assist me, Thank you much appreciated.
I picked this machine up from an electrician, who I believe has mucked with the wiring ?? as we had found other issues in the past
The machine has been serviced and all so restored by an older technician who worked on them back in the day, he is very very good with EM's.
The wiper arms and contacts have been cleaned and adjusted this is not the issue he says, there is signs of fresh solder, he believes there are no open circuit wires.
I would like the schematic to check to ensure we have all correct wires in the right place.
thanks