I have had this locomotive for a number of years and had zero problems. When I tried to run it today the sounds came on immediately when power was applied and it does not respond to the CAB2. When I move the program switch to program and applied power, it immediately started the sound. Disconnecting the Legacy base, I can run it in conventional. All other Legacy locomotives work, so it is not the base or connections.
With TMCC this behavior would be a bad antenna connection or a problem with the radio board. I opened the locomotive and the antenna is connected correctly. Looking at parts for this engine there are two boards listed that might be the problem: First; 692RCMC430 listed as “RCMC/receiver/driver/SD70 Ace/6-39596, the second is; 691RCVRB01 “Receiver board/RCMC.
I suspect that the 691RCVRB01 is correct since it seems to be specific to the model I have. I sent an email to Lionel asking about it (it says to contact Lionel) but the answer I got was that they do not do out of warranty repairs and listed some people who do.
Does anyone know for sure which board is needed? I would like to call Lionel and order the specific board.