N Scale LogoProduct Line: Train Control Systems
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K1D4- 4 Function Decoder with built onboard resistors for LED's and 1.5v
FITS: Athearn SD70M (early version), Athearn SD75I, GG1, SD40-2 Mid,SD70ACe, SD70M, U30C
Part #TCS-K1D4-NC N Scale Supply price: $47.16
New: July 2009

Electronic Specifications:
  • 1.0 amp Motor drive rating
  • Two amp peak load
  • Four 50mA function outputs
  • Length: 2.7"
  • Width: 10.16mm
  Athearn SD70M (early version), Athearn SD75I, Kato C30-7, GG1, SD40-2 Mid,SD70ACe, SD70M, U30C


  • Back EMF Load Compensation for superior slow speed control even with heavy loads.
  • Quiet Drive creates SUPER QUIET engine performance.
  • Autodetect for realistic throttle response when using DC power.
  • Dimmed Brightness of bulbs or LEDs is adjustable.
  • Dither is the ultimate in DCC control thru the entire speed range.
  • Variable Momentum lets you make custom acceleration curves.
  • Factory Reset is faster and easier to reset to the default settings.
  • Brake on DC stops the train with deceleration when in a DC block, maintains lighting, then accelerates when DCC returns.
  • Mars, Gyra, Rotary Beaco n and Blinking Ditch Lights are adjustable.
  • Decoder Lock for programming same address decoders independently.
  • Button Control of the Motor Circuit: for a smoke unit, high speed switching, or a variable brightness light up to 1.2 amps
  • Function Remapping: 13 buttons for most lights, 7 buttons for operations.
  • OPS Mode Programming allows on the main track programming.
  • All Program Modes are supported allowing use with any controller.
  • Basic and Advanced Consisting for use with any controller.
  • 28 / 128 Speed Step Control operating at 256 speed steps.
  • Additional lighting features not listed above include Random Flicker, Single & Double Strobe, and Constant Dim light.

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