I have an MTH Pay As You Enter Standard Gauge trolley that works fine but the headlight only works when the train runs in reverse, There is only one lightbulb on the train so I know which way is forward. There is not bulb on the rear. I reprogrammed the unit with a Z400 transformer and all of the sounds and station stops work fine. But no luck with the light working in forward like it use to do. No work has been done on the unit since it was bought. I am not am MTH guy but I assume the problem is with the electronics. Any suggestions?
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