Tone pots killing volume

[pda041376]

I spent the weekend putting together a kld JCM25 (jcm 800/2204 clone) and finally got all of the kinks worked out. Or so I thought. If I turn all tone knobs to 0 it is as if the the volume knob was set to 0, no matter the actual position. As long as any of the tone controls stays above 0 the volume remains. All knobs appear to work as intended other than that issue. Every thing is wired per the schematic attached.

Any clues on where to start figuring out the cause of this gremlin?

[sluckey]

That's just the way it works. Nothing wrong. Let it be.

[pda041376]

Roger that, Thanks.

[HotBluePlates]

... If I turn all tone knobs to 0 it is as if the the volume knob was set to 0 ...

That's just the way it works. Nothing wrong. ...

Now turn your Middle control up.  Volume will likely return.