Update 08/22/19: ATTENTION ALL SERVICE/GENERAL REPAIR TECHS & SERVICE STATIONS!!!! LATEST DIAGRAMS FOR LEGACY ELECTRONICS

I look forward to our updates, I've already gotten good use out of the original document.

Thanks for all your hard work on it.

Updates! I got good news for you all. I am coming close to completion of the BEMC diagrams. I just got too finalize some wiring variations, and general info.  I've also made changes (REVISIONS) to the original RCMC sheets. I believe I've found out what pin set "J2" is used for. Ill be adding info in for that. I most likely will be done in the next week or 2 if not sooner. I most likely will be turning the BEMC into a separate PDF for download and the RCMC "January 2017 revision" into its own PDF as well. I will be updating the download link for the RCMC diagram. I will be creating a new thread on the BEMC with download file.

Keep your Eye out for a topic labeled with "BEMC wire diagrams"

thanks Bruk

Thank you for putting these together.  Very helpful!!!

Thanks for your efforts in this compilation, I've already found the first version very helpful!

Bruk,

I just discovered this thread, and all I can say is Thank You for your Great Work, and for sharing it with us! We all appreciate the amount of time and effort you put into this. Looking forward to your updates.

Alex

Anyone have a diagram for this little board in the front of the latest mikado?   For the headlight and marker light connections.   I know the two pin is for the head light and one of the four pins is for the marker lights.   For the likes of me why isn’t Lionel using color coded connectors?????   Even for the duel smoke units for whistle steam the connectors are the same.   

Im sure I can trace things out but it would be easier with a diagram.  Thanks

Gary, that should be pretty easy to trace out.  I'll bet it's only a 2-layer board from the looks of things.  It appears to be mostly an interconnection board with a diode and resistor, probably for LED lighting I would guess.

superwarp1 posted:

Anyone have a diagram for this little board in the front of the latest mikado?   For the headlight and marker light connections.   I know the two pin is for the head light and one of the four pins is for the marker lights.   For the likes of me why isn’t Lionel using color coded connectors?????   Even for the duel smoke units for whistle steam the connectors are the same.   I'm sure I can trace things out but it would be easier with a diagram.  Thanks.

Maybe I have got this backwards but doesn't that connect to the wiring harness shown below which feeds the cab light, headlight and classification lights? 

Ok, Are the two chips near the smoke connector the drivers for couplers smoke etc? Or , are they still on the receiver board?

What board are you talking about Shawn?  The two chips on that board that Gary posted are a diode and a resistor, looks like a 1K resistor.

No, the rcmc main board. Are the drivers on the main board. Or, the plug in receiver? I assume the Mac triac days are over?

All the drivers are on the RCMC main board, the piggyback board is just the TMCC receiver.

Thank You so much for your Generous gift to our wonderful hobby!!!