The locomotive shell simply slips off exposing the factory board and LED lights - there is no DCC plug.
Begin by removing the board by cutting the front and rear bogie connections and the motor connections, remove the board as it is replaced with a DCC decoder. The selected decoder is a NCE Bach DSL but a DA-SR is a good alternative for other locomotives. A NCE Bach DSL was chosen because it placed the lights in the same location as the factory board and was in fact a similar size.
As there are no mounts the board was secured using two [2] beads of silicon along the top side of the motor then the board fitted and aligned and then set aside to dry for 24 hours.
The final job was to connect the track pickups and the motor wires, test run to confirm direction.
Note: if direction is incorrect at this time simply swap motor wires
Test run and adjust the motor settings. On this locomotive CV116 kick was set to 2 and CV117 kick strength was set to 25 resulting in the locomotive moving off smoothly at about speed step 2.
When happy, refit shell - done.
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