Stu,
To be fair I did'nt get to involved with it as a mate of mine who is more up to speed with that sort of thing, checked it out for me.
Having said that he did comment on one pin not being 3.5 volts as he would have expected to see on the power in side I think it read about 2.8 volts if memory serves it was the top right hand pin looking at the unit from the front.
I would confirm that but his mobile is off at the mo

Pete