Intermountain FP7 with TCS IMFP4-NF Decoder Installed by TCS.

First remove the screw highlighted in the image below and remove the front coupler from the locomotive and then lift off the shell.

(While the road name in the image above is different the coupler box is mounted and removed in the same fashion)

Next desolder the LED and motor wires from the lighting board and then unscrew and remove the original lighting board.

Replace the original lighting board with the IMFP4-NF decoder, making sure to guide the motor wires through the front two holes in the decoder.

Solder the motor and LED wires as shown below and screw in the IMFP4-NF. You are now ready to run!

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