How can I fix this Phono Stage problem

Agree with Audiofeil. The input for the MM may be a different one than for the MC.If so, the open RCA jacks are the reason for the buzz.
Otherwise it would have to be something to do with the grounding of the TT.

Thank for your reply.
I think the CA-430 is causing a ground-loop. I took off the connection from the TT to the CA-430 and the buzzzz stop. Then then I tried a cheater plug on the CA-430 but that still did not stop the buzzzzz. I have an old Mcintosh C39 preamp in another system and when I plug in the TT and the CA-430 into that system everything worked fine, including the MM setting on the CA-430. But when I return to my primary system with the C2200 I am getting the buzzzzz once more. How can I get rid of the groung-loop. I know that some people don't recommend using cheeter plug, but so far that has not work to get rid of the buzzzzzzzz from the system.

Audiofeil:

I am running the Canary CA-430 into the C2200 phono/Aux input. I have used that input with several phonostages including Modwright, Graham Slee and SAP. But I did not get any ground loop problem like now. And I have always use the Dynavector 20XH high output MC cartridge with the phonostage set in the MM setting for this cartridge. Are you suggesting that I use one of the other line input (tape, CD, DVD,etc.) instead of the Phono/Aux on the C2200 preamp?

Yes, input the Canary into another line input other than the phono/aux and see if that ends the buzz.

The Canary may have the (+) and (-) sides of the A/C input reversed?
To check you would have to make a cheater box, to be able to reverse the A/C line hot and cold. But it might be worth checking out.
Short extension cord, a wall outlet box, plastic is best, a wall A/C receptical. cut end off extension, wire receptical in box reversed from why it is supposed to be with hot on wrong side. (ground is normal) IF it quiets hum then your Canary is probably wire hot on wrong leg. And just fix it.