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Reply to "MTH SP GS4 locomotive"

Have you made sure the battery holds a charge? If it's still the white battery it came with, it's probably shot. What's the model #?

These engines can be locked into a direction. You have to unlock them. You'll need a good battery inside to do it.

Thanks for the reply!  There appear to be two black boxes that are soldered to the board.  Otherwise no battery that's obvious.  I'll have to see what model board I have.

Roger

 

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