Do lionchief plus steamers use a chuff switch for the smoke fan and chuff sounds?

The electronics generates the chuffs internally based on the motor tach for LC+.  LC (not plus) has a chuff switch to generate the chuffs, it's an optical chopper that the smoke lever activates.

Thanks john, this is great as I have replaced a couple of chuff switches in my lionmaster steamers. These lionchief plus steamers look good for the price and just may be bullitt proof. Just rewick the smoke unit on occasion if you are a heavy smoke user and thats about it. No chuff switches to fail. I had a lionchief polar express engine and it was just ok. Loved the remote and simplicity of it,but no cruise control made me sell it. Got a lionchief plus rectifire engine and with the cruise control it runs and operates great. Now I am hooked. I have lots of small legacy steamers and legacy lionmaster steam. These lionchief plus steamers at there nice price point will fit right in my collection nicely. I have an atlas turntable that I have not used. Now I can keep and use it as these lc+ engines will fit nicely on it. Thanks again for the info.