Bachmann 2-6-6-2 N gauge decoder install

[Sherman1111]

I am installing a decoder ina N  2-6-6-2 , the decoder sits before the cab. and the engine is prewired for dcc, some what. When I hook up the lights I get a short. Up front of the engine is a circuit board for the lighting circuit with two screws that make contact with the split boiler. if I remove the screws the short clears  but lights do not work. it looks to be a lamp in the front of the engine. any one run into this? I am thinking of removing the circuit board and putting a 22 ohm resistor on the lamp. Am I heading in the right direction?

thanks 

[gandydancer19]

Yes, you are going in the right direction.  The lighting circuit board in the front of the boiler is not right.  I just removed mine and installed a resistor.  Less work than trying to figure out how to fix it.

[Sherman1111]

Thanks

I will give it a try 

[Sherman1111]

I was able to get the circuit board to work, it is polarity  sensitive. it seems that this loco is color coded backwards. I had to change the motor also.