MTH RK PS-2 PRR S-2 Help

Your engine from this post

https://ogrforum.ogaugerr.com/...eadlight-not-working

Did you get it to work after that until now?

Looks like it has a PS2 3 volt board in it.

https://mthtrains.com/30-1395-1

It might need a tech to look over it to see what failed. Did you try to reset it?

Maybe something simple that's wrong inside like a poor ground or something. Tethers sometimes fail and need re-soldering or changing. A tech could at least test the board to see what works.

 The BCR only provides power during power interruptions. Symptoms  would be like stalling on switches. It can be tested by killing the power and see if it plays shutdown sequence.

Were you looking for a different answer this time? Your previous post was the same topic and issue. The BCR didn’t cause the problem. You likely damaged some connections when you installed it, as others suggested in your January post. 

A BCR is simply a capacitor circuit that holds a charge for sounds when power is interrupted.

Thanks for the responses.  Actually, there is more information than I included in my previous post in that the smoke unit also failed.  I can tell by the slight whine that the fan spins when the smoke feature is set to on, but the resistors are obviously not heating the wick.  It seems curious to me that both these features failed (headlight and smoke unit) in a relatively short time span, but not at the same time.  Also, neither failed immediately after I installed the BCR.  I did checked the connections to the headlight and had no luck.  After a feature reset, the back-up light does work however.   I also tested the BCR by disconnecting the track power and the shutdown sequence commenced as expected.  

While it is possible I have bad connections to both the headlight and the smoke unit resistors, that scenario seems too coincidental to me.  Could there be something wrong with the board?  Or something else altogether?  Just wondering if those with more experience with PS 2 engines than me had any more insight given the extra information.  Thanks.

Can be broken solder joints on the tether at engine side.  Or a bad tether.  G