DOD FX60 Stereo Chorus - weak effect?

[Drummer4gc]

Hey folks, posted this at DIYSB but wasn’t able to figure it out, so trying my luck here!

I've got a DOD FX60 stereo chorus and the effect is just weak. With Depth less than the max setting, it just sounds so incredibly subtle, I can’t believe it’s how it’s meant to sound. It’s definitely weaker than a couple of other chorus pedals I’ve compared it too, but unfortunately I don’t have another FX60 to do a side by side.

Here’s where I’m at:

-I’ve replaced all electrolytic caps. No change.
-I’ve confirmed that the bias trimmer does in fact adjust the bias voltage, and I’ve adjusted it with a scope for the least distortion coming out of the bbd. No audible difference at any setting.
-The LFO responds to the speed knob as expected. One question I have is if it’s putting out the right amplitude signal to get the bbd to wobble enough - what’s the way to check? I’ve looked on a scope but not totally sure what it should look like.

Any other ideas??

Thanks!

[g1]

Make sure the Fet (JK3?) is doing it's job. When effect engaged, signal should be same level on both sides of it (drain & source).

[Drummer4gc]

Thanks for that. Just checked - signal is the same on either side of that FET when it’s on, killed downstream when it’s off.

[m_drob]

Hello, is the problem solved? It's just that I recently bought the same chorus and faced the same problem