Thankyou again Thanos,
Yes I tried those USO setting and it worked!
after 20mins of experimenting the AMC stopped communicating with the com port.
No matter what I tried (I spent all day trying) I could not get the data display outputs on the AMC to change from 128 128 .
ie.: The feedback pots display correct values, but the AMC output will not change.
I am puzzled to no why it worked fine then stopped working.