I have always had 40' s and 50's lionel trains . I know nothing about newer trains I was giving k-line spirt of conrail model k2407-2943 the train had lights and
audio no movement. Read on form about pc board burning open, removed all pc boards off mother board and found the power input from front roller open hard wired a jumper as I was wiring jumper I was thinking it still should of moved because of power from back roller …. put all back together now lights or sound work train does nothing checking the dcdr board,, power in ok but nothing out,,,, bad bridge rectifier traics all look ok getting a new bridge rectifier my question is why did I lose function of lights and audio how does lights and audio get powered up was working till removing all boards from mother board ?Cant find any schematic or wiring diagram and with out that I cant tell how it works... could it be software old timer needs help
