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z-4000
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  1. Technical Model Train Forum
    Large MTH DCS layout idle for 12 years of wife's terminal health problems has a few dead signal spots (power is good). Some improve with cleaning and I plan to try some light bulbs or filters soon. I use 3 Z-4000 with 3 TIUs and need to check my logic. All TIU outputs used as fixed and set at...
  2. O Scale
    This thing was working fine for a few years, but now only Track 2 works (I haven't used the accessories). The red Overload light blinks on startup, then stays off. Track 1 puts out no power at all. The circuit breakers have not popped, and I don't think there was a single incident that...
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