NYC ALCO RS3 Diesel K2470-8322 Lionel 6-21314

Have you attempted to reprogram it?

If its actually TMCC with program/run switches present I would remove the shell and make sure all the boards are seated, in particular the R2LC.

Pete

Yes, won't program, and I did check the boards for plugged in.

At this point if you have another R2LC or ERR R4LC you could swap it out. Symptoms point to that.

Pete

I do. It requires a bit of disassembly to make clearance to get room to unplug the r2lc-08.

I swapped the R2LC-08, didn't help.

I did fine a no-solder joint. One motor started to run intermittently after I moved stuff and the motor wire for it was totally not ever soldered to the other wire pair. So that was worth finding.

@cjack posted:

I did fine a no-solder joint. One motor started to run intermittently after I moved stuff and the motor wire for it was totally not ever soldered to the other wire pair. So that was worth finding.

I’m confused with the above finding. How did it run fine in conventional if there was a motor wire that wasn't ever soldered? How could it run in that case?

There were 4 wires supposed to be soldered together. 2 wires were soldered and the other 2 wires were soldered. The two bundles of 2 wires each were touching inside a short length of heat shrink tubing. When I moved the heat shrink joint, the two bundles separated. They were supposed to be all soldered together, but obviously they were not. Maybe they were lightly sticking together, but the joint was not strong enough to manage moving them.

It still runs fine in conventional...again. I again tried another radio board, but it still would not program, etc. with the base turned on.

Running out of ideas. Try checking the run program switch. If a wire is broken or the switch doesn’t close it may be stuck in some other ID number.

Pete

Yes, me too. The switch is ok. It has to be on run for conventional and the engine responds to the base being off for conventional.

I may set this aside for awhile.

Or maybe I'll list these two engines and let someone have the fun...

@cjack posted:

Or maybe I'll list these two engines and let someone have the fun...

Sent you an email. Couldn't figure out how to message you from the for sale or trade post.