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The receiver board, AKA the radio board, AKA R4LC is the board that listens to the signals from the command base and translates them into loco commands, like go, stop, forward, reverse, speed, coupler commands, smoke on/off, horn, bell, and the like.

The railsounds board has the recordings of the loco sounds on it (horn/whistle/bell/chuff/prime mover).

The power supply board provides power to the railsounds board.

The mother board holds the smaller boards and provides interconnections between them.

After reading your posts I think my problem is R2LC. I assume you didn't read my post stating my problem I probably listed it wrong.  Lionel Odyessy Cab #5444 no smoke or sound runs slow. I checked all plugs & wires Pulled the three boards reset them. pulled the 2 chips reset them. I now have lights, bell whistle, forward reverse (slow speed) I noticed on start up it goes forward without pausing Also when I reinstalled the chips I matched the angled edge with the one on the PCB board is there a right or wrong way other than that Is there a way to test the sound board. possibly changing the chips from a different engine I do this on a MTH PS1 engine when I think the chip is bad I appreciate your input.

 

OK, that eliminates the tender totally, the tender just does the sound.  All the motive power is done in the locomotive.

I have a home-brew test set for TMCC/early modular Legacy, that's how I test that stuff.  Still working on my later Legacy test set for RCMC boards.

If you have sounds, you have the chips in right.  If you put the chips in wrong, you get smoke, not sound.

The Lionel tender will do basic sound without being connected to the locomotive, usually if it will give you idle sounds and whistle/bell using a transformer, it's working.

Are you running with TMCC or in conventional mode?

JimmyT posted:

I assume you didn't read my post stating my problem I probably listed it wrong. 

Well, it wasn't in this thread, so I didn't see it.  You should continue in the same thread for a single issue, it's much less confusing.

Thanks for the info. I tried the tender by itself. I get bell & whistle no other sounds in either R/S or signal sounds mode. I'm using conventional Z4000   I haven't  tried my Lionel TMCC early version.

When I coupled the engine back to the tender, slow speed backward & forward, bell & whistle,lights   No smoke, or idle sounds

At least I haven't seen or smelled smoke from any of the boards. Thanks for the heads up about staying with the same thread.

 

 

 

 

 

Obviously, the first step is to swap the R2LC with a known good one, it's a simple socketed board.  The DCDS is frequently more complicated to swap out and test.

Testing the motor isn't a bad idea, you can do that with a DC power supply by unplugging the large 6-pin black plug from the DCDS and then connecting the DC supply directly across the motor.  It's much more revealing to have a DC supply with variable voltage and current metering to determine the health of the motor. 

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