Richie,
The accessories posts are connected to a separate bus. Since the output of the accessories terminals are also AC, I have arbitrarily designated the B terminal as positive and connected my accessories accordingly. For example, the remote switches are connected as directed in the instruction manual to the corresponding terminals. I read the manual for the CW-80 about setting the voltage output and it says the factory setting is 12 volts. I have not confirmed this but wonder if this would make any difference. I will try resetting the output voltage and see if it makes any difference. What I am hoping for is that there is not something wrong with the transformer. I have a second CW-80 connected in very similar fashion on another layout without any issues. Thanks for your input and advice.
Brian