I have a Lionel SC-2 and I've been fighting TMCC signal issue. Basically plugging the thing in normally, some switches switch one way, but not the other way. I don't think it's broken because if I plug in with the wall-wart and move it around to just the right spot, sometimes I can get it to work for both directions on Switch 1, but it's still finicky. and this isn't a place I can mount it permanently.
I've tried various things, I cut the trace, as was suggested here, and powered it directly with the U of the base connect to the unit, and the. I tried putting some metal tape under the layout above the SC2 and connecting that to earth ground. (Using metal tape under overhead passageways and grounding this has helped me with locomotives with TMCC signal issues.)
I think it's the 'TMCC ground plane issue' as is discussed here, but for the life of me, I'm unable to find a way to make this function properly.
The layout isn't that big, maybe 6x10 feet or so, it does have a rats nest of wires beneath with power going everywhere. Maybe I have too complex a wiring system underneath I wonder? The switches are powered with a second AC Transformer, though I still have trouble with the SC2 even with no switches at all wired to it.
Any suggestions here? TMCC for locomotives mostly works pretty good though I have a few dead spots here and there.
