The bridge is what is not working.  I have a seperate power supply and the prong under the shed is where i made connection.  Reversed the way I connected into the prong, but nothing.

Hello, I have a new HO scale Bachmann turntable, which I want to operate in DC mode.  I set it up following the directions and it does not work.  I tried changing the way the connections were hooked up and even purchased a new power supply.  However, it still does not work.  Anyone have any thoughts?