I'm working on a RailKing S2 Turbine with what I though had PS1. I believe the model number is 30-1149-1, but I don't have the box. I opened the tender and found no battery. It also does not have an adjustment pot for the sound volume.
I put it on the track and powered it up. It runs and smokes great. However, the only sound I get is the whistle, no bell, chuff, squealing brakes, etc. It has a QSI board in it but I'm thinking it's not longer the original PS1 electronics.
Here are the pictures. What are your thoughts?