The last time I ran this set was in 2019. Everything OK. Today, no sounds. Here's what I did to try to diagnose/fix the issue. First, I turned the volume POT to full. Nothing. I then reprogrammed per the manual to "restore features." No sound. I reprogrammed a new TMCC ID#. No sound. I pulled out the guts of the car and as was suggested in another thread, pulled and reseated the 3 circuit boards: Radio Rcv'r; Railsounds; and the Railsounds Power board. Nothing. I think the RC/LC must be OK because it responds to commands to reprogram the ID and it will respond to lights on/off commands...nothing else. I then looked in the Lionel parts database...it's listed but "Unavailable". I'm considering maybe the Railsounds Power Board (691RSPRA00) may be the culprit..(Well I hope so sine the sound board is unavailable) but it costs $40.00. Oh, I've performed all these steps on the layout using a Cab-2 and then again on my test track using a Cab-1. I didn't think it would matter...I was right, it didn't. The only other step I think may be useful is to pull the chips and reseat them. Don't want to attempt that unless that is a logical next step at this point. Is there anything else I should try? Oh, also, anyone know of a source for these sound boards? Thanks.
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. Just finished researching that car'.. it is very cool'... Have fun'....