Ok i received my zephyr this morning and i hooked it up to my layout. Now my layout is an oval witha few turnouts ( it is the first phase of the trackplan. There aren't any return loops as far as i can tell. Pretty basic really So i put my DC loco on the track and followed the instructions press power - loco - enter 00 - loco Now the unit was singing as described and when i turned the knob the sounds changed no movement i turn it up more still no movement. I am sure this is very basic but i am new thx for the help guys.