Intermountain FP7 with TCS IMFP4 Decoder Installed by TCS.

First remove the screw highlighted in the image below and remove the front coupler from the locomotive.

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

Now screw the IMFP4 in were the lighting board used to be. Solder the LED wires to the IMFP4 as shown in the image below.

Replace the shell on the locomotive, reattach the coupler to the locomotive and you are ready to run.

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