I have no sound. F8 isn't toggling sound. Bell and whistle, have nothing. Runs fine. My thought is to reset it. There is nothing in the documentation. Here's the link to the pdf http://www.soundtraxx.com/factory/OEM_pages/bachmann/bachmann_n_284berkshire_sv.pdf Thanks! Edit - I changed the max volume and that was enough to get sound control back. But I'd still like to know, if there is a factory reset.