just put my brand new mth heritage series erie SD70 on the track DCC MRC prodigy express runs beautifully no lights or sound though even changed the address on the main with no trouble what is the secret reset or CV to get the lights or sound thanks
Did you hit F3 for startup sounds?
If that doesn’t work, try factory reset. Select loco 55, then set CV 55 = 55. Its all in the manual.
F8 will turn sound off and on. It’s worth a shot.
went to the mth website where they list the functions in order ansd a simple double click on 3 got everything going what is surprising amazing baffling etc is that nowhere (at least so far have not found it) in the packaging literature does it say “for digital control simply put the engine on the track hit address number 3 hit function 3 and off you go” would have saved some time and angst!!