sound for Lionel 6-28014

Well, I'd test both boards first before I started replacing things.  Also, you need a 3rd board, the RailSounds power supply, that sound board doesn't have it's own power supply.

I can't see where the cap looks cooked, is it bulging?

Are these two boards in the tender?  If so, you have the wrong boards in there!!!

The R2LC should be in the locomotive on the internal motherboard.

I've attached a reprint of the Series 8000 Hudson schematics and drawings to aid you in your research.

Lionel Series 8000 Hudson.pdf

This was extracted from the Lionel service listings: Lionel Parts & Diagrams 44Complete.pdf, available on the Lionel Service site.

It looks like I was wrong on the other thread as far as a single circuit board vs. modular boards. Gunrunner is correct, the radio board (R2LC) is for the engine. If there is a circuit board in the engine, it is likely for the tender (sound power supply). Does the locomotive run? It is likely now all 3 boards are going to need to be replaced.

For the older RS board, there's a RS3 power board, 690-9845-256, it's not the normal generic power supply board.

It's likely that you can transplant the chips in the RS3 board to a much more readily available RS4 board and use the generic RS power supply board, also much more readily available.

I have no idea what you did to the R2LC plugging it into the tender, probably nothing good.

And if you go back to the OP's first of three threads on this topic...

https://ogrforum.com/topic/tmcc-9

... everything was working fine until there was a short in an MTH passenger car. That must've been when the R2LC jumped from the loco to the tender.

Needless to say, I'm confused.

TRW

That was a MIGHTY short circuit!

When I read about the "jump", I checked the picture I included in my last post.  I have images of all the boards I have and I "clicked" on the wrong one.  Gunrunnerjohn's diagram made me check the posting. I apologize for the confusion I caused.

Arrow points to blown capacitor.  The board is a Number 610-9845-256.

I appreciate all your comments as they were very helpful. In the future, I will also check my attachments before I press the "send" button. 

In that case, you simply need that power board.  You might try replacing the cap, but not having one to look at, I don't know what the value is.

BTW, the red mark on the cap on the R2LC is in many of them, and those "cracks" are simply expansion joints in case the electrolyte starts expanding.  The cap looks fine to me, and I suspect the R2LC is fine.

I have RailSounds 3 Power Boards if you need them:

https://ogrforum.com/...ounds-3-and-4-boards

TRW