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OB6 vco frequency readout incorrect

OB6 vco frequency readout incorrect
« on: July 21, 2020, 10:58:13 AM »

On our OB6, the readout of the pitch is wrong. The only way to correct it seems to be:

1. Hold down (for example) the A key and tune both oscillators until unless the readout says 'A' on each.
2. Globally transpose up by 3 steps
3. Do this for every single patch.

No amount of globals+0 gets the synth to align itself, only these manual steps correct it.

Without global transpose +3 the LED display always reads 2 steps down from where it should.

Is this a bug? The last firmware update did not fix it- we are running version 1.5.5

Anyone else have the same issue?

Re: OB6 vco frequency readout incorrect
« Reply #1 on: August 07, 2020, 10:22:02 AM »
Have you had a look at the pitch bend wheel to make sure it isn't behaving badly?
Minimoog D (vintage), OB6 (Desktop), Oberheim Matrix-6 (MIDI Controller), Prophet REV2-16, DeepMind 12, VC340