Honeyeater Schematic Request

Hello.

I'm having difficulty with a DIY Honeyeater build from a pre-populated PCB and Panel set. The module produces output from the noise circuit and sets noise output volume appropriately from the related potentiometer but does not produce waveforms at the output. The TRI / SAW potentiometer and PLS / SUB potentiometer do show activity on scope when turned. The pots appear to generate voltage offset at the output when observed on the scope. Both of those pots also seem to offset the noise output on scope when those potentiometers are turned as well. I've followed as many traces as I've been able to confirm visually and seem to have appropriate continuity between components where it would be expected. I've also reflowed the connections that I soldered to double check for good connection points. A schematic would be helpful to a deeper dive with testing / troubleshooting. Is there any immediate suggestion that might help me to focus in on a potential source of the symptoms described?

Regards,

Scott.