TCS DP2X Decoder Installation for N-Scale Intermountain AC-12 4-8-8-2 Cab Forward Articulated Steam Locomotive. It was performed J.M. at TCS



First Remove the shell of the tender by gently slipping a flathead screwdriver between the shell and the frame LIGHTLY prying the shell up. Please note that the underside of this tender has alot of detail and should therefore be treated with the up most care to avoid damage.



Inside the tender you will find the circuit board and the dummy plug (connected to the NMRA plug on the circuit board). Remove this dummy plug by pulling it straight out of the socket. If you need a bit more leverage you may slip a flat head screwdriver between the socket and the dummy plug and gently pry it upward.

Next insert the DP2X decoder into the 8 pins of the NMRA socket oriented to the top of the image above. It is important that you only use the upper 8 holes, and that the decoder is oriented properly in accordance with the image above.

Finally, you may slip the shell of the tender back on and your locomotive is ready for operation!

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