Dear Jeffrey,

thanks for your reply - now here is my story.

I acquired the control center in 2003 and the walk-around companion much later in 2008 in Shanghai, where I also live at the moment. Now the local Bachmann shop found that the control center from 2003 actually is not compatible with the walk-around companion that was only available some years later.

They sent the control center to their shop in Guangzhou where the circuit board was replaced without any charge. Now both unit work together fine, and I am certainly delighted about this kind of after-sales-service.

Knud

My DCC locomotives react very slow to my new walk-around companion. I need to turn the control knob back and forth, until something happens. When I slowly turn the knob to zero or even change direction without turning the knob the locos just keep on going.

The reaction is perfect to the control center itself.

Does somebody has a clue what is wrong?