CN GP38-2W

[Schraddel]

Hello,

loco #4789 was done at first:

Do the usual practices, unscrew and remove coupler boxes at first. The gently pry the shell off the frame.
This is an older motherboard with 2 interfaces, left the 8-pin interface as NMRA S-9.1.1.1 and in the middle the JST 9-pin interface as NMRA S-9-1.1.2. Many decoders in the US have already a JST 9-pin plug fitted, removing the analog plug and instead plug in the decoder is the simplest way to convert to DCC.
But because i selected my decoder in PNP implementation, the motherbord has to be removed.





This was done here. There a no soldered joints, by removing the plastic retainers the wires can be easy pulled out.
Then clip out the motherboard.





Athearn uses a special motherboard with voltage stabilizers für their 1,5V incandescent bulbs. These are not suitable for LEDs.

But here i have more ambitious efforts concerning of reliable running like a dream.


Lutz