I had the same issue with the Train Clubs Legacy 990. Somebody had turned the Thumb Screw on the “U” Terminal of the Base so hard it broke the connection internally! I called “ Talk to Us”. at Lionel and talked to “Heather”! She was courteous, knowledgeable & polite. She answered on the First Ring. She said she would send me a Pre Paid FedX Label within Minutes of our conversation! I sent it in the next day & had it back in 2 weeks! Now that is what I call service!
KUDOS to the Lionel Service Department