Korg Mono/Poly

Hello

On 02.12.15 07:37 , voltagegrove@yahoo.com [korg_mono-poly] wrote:
> It was working great and then all of a sudden, no resonance, but it just
> increases the output level. The rest of the filter works fine. Very
> strange...
The resonance potentiometer sends out a voltage, which controls the 
internal resonance circuit in the 2044 via VR3.
But this voltage controls also the first VCA (double transistro Q10 
after the VCF). This is, why the output level increases.

The question now is: does the resonance control voltage reach pin 2 of 
the 2044. If no then check the voltages at VR3 and R2. I could imagine a 
cold solder joint.
If the cv reaches the pin2 of the 2044, then the resonance VCA in the 
2044 is dead. Then you have to replace the 2044.

Florian