Work has started on converting the K-4 to RC/DC/DCC operation.
First step was to remove the boiler. I used the guidelines in GregE's website to ease removal.
Following suggestions in GregE's site for re-wiring the loco so that all twelve wires:
2-track pickup, 2-motor power, 2-chuff, 2-classification lights, 2-headlight, 2-smoke, wires were connected/left-connected to the plug between the loco and tender. I created the below diagram to help me track wires all the way back to the pcb in the tender.I discovered that sometimes, wires reversed colors on the loco/tender sides of the plugs as well as Accucraft often used the black wire of a pair for the positive, instead of the usual negative.
Much to my disgust, I also later discovered that there was a faulty trace on the loco/tender plug PCB. Note the location and fix for the problem shown in the picture.
I spent well more than an hour trying to track where the open connection was for the smoke circuit. After checking all wires in the loco and tender with an Ohm meter, the plug was the last place I checked. /DesktopModules/NTForums/themes/mls/emoticons/angry.gif
More pictures of conversion to come in the near future.
JimC.