Need help hardwiring a DC Bachmann BNSF GP40 to DCC

[atansley237]

This is a Bachmann non-DCC ready unit. Board mounted on the unit is H635x+pcb029.pcb

[jward]

NCE makes a drop in decoder for this locomotive and other similar Bachmann diesels. It is the BACH-DSL. This decoder replaces the original PCboard, To install you unsolder the old PCB and install the decoder in its place. 4 wire connections, plus two LEDs for headlights that must be added to the decoder.

[atansley237]

Thanks