Thanks for the info. I have 4 one defective, so 3 operational but one other Lionel replaced as DOA, So seeing 2/4 (50%) reliability ratio not making me think these would make FRA standards out in the real world๐. The one newer one (with exteral wires for fastrack) seems a newer design and has been reliable. The dead one seems older. Yes, a defective time/sensitivity knob is possible and will try the cleaner as suggested. Agree for the price of these, repair and shipping seems a bad call. I do have a meter to check things, but the process of elimination seems tedious and even if I isolated and had parts my soldering skills likely to damage further. Oh well, just hoping for an easy fix, but in this hobby you win some and lose some. The rail empire will go on! Thanks for your help guys!๐
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