Mike, looked the engine up on Lionel parts site. It does show an antenna and 2 slide switches in the chassis. They may have wanted it to be a simple quick process to do an upgrade if that’s the case. No mention of any TMCC components such as an R2LC. Not sure when coil couplers became standard. It shows the thumbtack style. The original poster said the engines manual didn’t cover anything such as a reset. Hopefully someone familiar with this engine or that era of Lionel command can figure out the problem.
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