MTH Premier Challenger PS1 Update Chip

MTH still makes the chips, you can get it from the source.

Did you replace the battery before powering it up?

Yes, I installed a BCR in the tender before powering it up.

Update 10-9-18:

I ran the challenger a little and noticed a switch on the tender. I have no manual for the engine, so I was inclined to switch it to its opposite position. After shutting down, the compressor ran after the ding signifying the engine shut down, then powered it back up to have the engine not repeating the bell, but now repeating the compressor throughout operation. Another thing to note is how the engine continued playing sounds after power was cut from the track (the battery providing complete shutdown, on other engines).

This is the first time I've seen this on any MTH Proto 1 engine. If anyone knows something about this, please let me know.

Thanks again in advance.

I suspect the switch is the coupler switch for an aux tender, it isn't likely to affect the sounds or the operation of the locomotive.  What it likely did was disable the rear electrocoupler.

Early MTH had a battery switch which needs to be on for sound continuity and off after done operating, otherwise sounds will continue to cycle until the battery dies.  G

Never saw one of those George, that's a new one on me.  The switch I see is normally the coupler selection switch.

I have several boards from 93 stuff set up that way. G

I guess I stay away from old PS/1 stuff.

What is funny is that old stuff will cycle reverse unit without battery.  G

All my PS/2 and PS/3 stuff cycles just fine in command without a battery.