The smoke unit in my Berkshire barley produces smoke. I made sure that the smoke switch was on, and the smoke was turned on with the Cab 1 remote. I tried resetting the locomotive, and it did not help. My track voltage is set to 18 volts, my other locomotives smoke properly. So I rebuild the smoke unit. I replaces the batting, the 8 ohm resistor without the sock. I made sure that the batting would not interfere with the air flow. I have added plenty of smoke fluid in it. Still no change, barely produces smoke. Then I took it back apart, and I replaced the smoke unit motor. Everything that I have done did not help produce anymore smoke, than it originally did to begin with. I am thinking that possibly the AC regulator, that is referred to in the smoke unit section on the Lionel website could be bad. And this board is no longer available. Has anyone else come across this issue with their Command Control Berkshire locomotive's. Any suggestions how to proceed further would be appreciated.
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Yep, ….some of us have seen this ……a lot!!…..we’ve developed a bypass as a workaround to make much better smoke, but leaving the regulator in place. You can isolate the smoke resistor, and simply bypass the AC regulator. You will need a 20-27 ohm TMCC compatible smoke resistor. Replace the 8 ohm with the 20-27 ohm version, and isolate that resistor from AC reg, then wire the new resistor to smoke feature on the R2/R4LC, and frame ground ( common ) …..leave the AC reg in place, don’t even bother with it,…..those AC regulators are junk, I’ve seen far more failures, than ones that work,…..
Pat
Personally, when I'm doing this fix, I remove the regulator, there's no upside to leaving it in there. I just wire the smoke output from the R2LC (usually available on a motherboard connector) to the smoke switch, and the other side of the smoke switch to the smoke unit resistor connection. As Pat says, swap out the resistor and you're back in business.
Are there any diagrams to follow, to do this properly. I'm pretty good at fixing things. But I would not know what connection to isolate. And what to solder to wear. Thank you very much for your input.
Not really, but I can show you the connections for the smoke unit on the motherboard, this diagram is from Rod Stewart's motherboard document.
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Thank you very much John. I will get it printed out,and work on it again in the near future.
How do you isolate the smoke resistor ? It attaches to the board with screws and nuts. And the smoke motor plugs into this board as well. Maybe this one is a little beyond my understanding. I don't want to ruin the locomotive.
The smoke resistor is already isolated, one end is common on the smoke unit PCB connector, the other goes directly to the connector on the smoke unit PCB. Here's a typical wiring diagram for the semi-smart smoke unit with a regulator.
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Thank you both Pat and John very much for your effort. And John thank you for the diagrams, I appreciate it very much. I will try to do this sometime soon. I also took your advice, and got a new Hakko soldering station with 4 tips for Christmas from my daughter.
You're all set for the soldering to come!