Sound not working in B unit and tried both switches under unit. Where can I get a owners book or service book?
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Should be able to from Lionels website under service. G
Should get you going: https://www.lionelsupport.com/...ents/71-8130-250.pdf
I know the 71-8130-250 manual that Lou mentioned above is the one that Lionel references for the 11903 ACL F-3 set, it's not quite the right one. It's reasonably close, but note that your ACL F-3 B Unit does not have a back-up light.
If you think your RailSounds 2.5 board is bad, shoot me an e-mail as I might be able to help.
TRW
Thanks for the info. I think the battery is bad and have not had time to check.
The battery is only used during power interruptions and shut-down. The sound should work regardless if a battery is good or not... or even installed.
Make sure the volume is turned-up -- the control is one of the roof-top fans.
TRW
