Filter Frequency Knob doesn't work

[Kai-vD]

I own the OB-6 since a few days. All of a sudden, after turning the Instrument on, the Filter Frequency Knob doesn't work any more. It doesn't do anything to the sound!

All other Knobs seem to work, and "Local Control" in on.

What can be the matter?

[tarekith]

What knob mode are you using, Passthru?  If so, try changing it to Jump and see if that fixes it.  Sometimes in Pas mode if the default stored value is at one extreme or the other, it can be hard to get the knob to actually "pass" through they value and start working.

[Kai-vD]

No, the knob mode is jump.

As I now noticed: The resonance-knob is not effecting anything either.

I just tried a Global-Reset (GLOBALS+WRITE) - no success.

[Kai-vD]

Now I had the time to try things: The Frequency- and the Resonance-knob are working only when the Filter Envelop Amount is set to a negativ value.

[Kai-vD]

Solved: Sorry, it seams as if I need a holiday: The reason was, that I had a exp.-pedal in the Filter-jack - and forgot about it. Shame on me - still learning...