I just got a used MTH Pioneer Zephyr and discovered that it has a Protosound board. I don't know what version it is as the train came without a manual. The train will light up and make sound but there is no movement. I opened it up and there is what looks like a 9 volt battery. I pulled it out and there was some green gunk around one of the terminals. I tested the battery and it reads 6 volts. I assume that means it's dead?
I do not have DCC remote control, just TMCC or conventional control. If I leave the ProtoSound board in for the meantime, what does it take to make the train run in conventional mode? I'm not getting clear answers using Google. I will eventually convert to TMCC.
Any help would be appreciated.