While you do get more of a straight AC with transformer controller turned to full, you are still chopping. And your have the TIU chopping it again. So you might not get a good signal to the LC engine. I would connect the transformer directly to the track avoid TIU and see if this resolves your issues. IF things work, plug the transformer of the Z-1000 via an adapter directly to TIU and try. MTH recommends against using a controller and TIU as a source of power. G
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