Daigram for C40-8

[bkobielusz]

I am looking for a diagram of the interior workings of the C40-8.  Specifically the wiring diagram on the pin connector.  I need to rewire a unit for a DCC decoder and have lost the diagram. 
I would appreciate and help.  [email protected]

Thanks Brad

[ABC]

Here's a link to the parts diagram, hope this helps 
http://www.bachmanntrains.com/home-usa/dwg/dwgs/N850X-IS001_2.PDF