I really appreciate the vast esxplanation on how a quantizer works and I understand the principal. But I really think the point of what I'm saying is being missed. The Oscillator will play the scale perfectly without the internal quantizer being switched on.
So the voltages coming from the sequencer are precise enough to produce the correct pitch. Both the sequencer and the oscillator are digital as well. As I said in my previous post, I have tried putting an external quantizer in the signal path and it has zero impact. All the notes in the scale are played correctly. Only when I turn on the oscillators built in quantizser do I get the problem and its only the first not in the scale that is a semitone sharp. So adding offsets will just put everything else out. I know because I have tried it already. The only explanation I can think of is that that the internal quantizer is in some way faulty or incorrectly programmed.