Discussion about the Korg PolySix synthesizer

I replaced the battery and now have this issue, VCO modulates no matter the setting. Even when level is down all the way!

I disconnected the Mod/ pitch wheel and the problem is the same so that's not the issue.

I tried reseating the 367 connectors etc, it's very frustrating because I fixed all other issues with the synth!

any help would be awesome.

Thanks