I have an older Jc 120 that has one single output and two inputs on the back labeled main in. When I insert my effects rack here it has a great overall sound but the onboard effects, chorus, reverb, and distortion are bypassed. Is this Normal? Can it be modified so that the chorus effect is still use-able with my effects rack.
Putting the effects rack out front and running in through the guitar inputs sounds ok but much more noise. I realized with it out front though, I can use both my Boss Distortion and the onboard Distortion together. Just using the boss for normal tone, and then stomping the onboard JC distortion for leads. Gives it that little boost.
I also like blending the two reverb units together.

So I guess over all my main question is how to do away with the bypass when I'm using the effects loop.

Thanks for reading and I appreciate any info any one could give me. Mace