Mike,
Well done, its always very satisfying when you get to the point of that eureka moment isn't it.
I have a little clarification for you though. I have a brand new unused 75 FBH with obligitory faulty circuit board. The SMD resistors marked at 4.71K ohms are clear to see as they are identified with numbers and both of them pass the resistance test, however the 47ohm SMD is not marked with numbers, is it ? All I can see is a Brown coloured SMD in which I get a reading of 12.8Kohms which I believe may be the faulty one that needs replacing, photo attached. This is the SMD to the right of the resistor with yellow purple and green bandings? Can you confirm?
Regards.
