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How to enable sound on Graham Farish 371-111A class 31

26 views 1 reply 2 participants last post by  Shedman  
#1 ·
Graham Farish model 371-111A, Class 31 loco, comes with an on boards speaker. I'm reasonably new to DCC. Fitted a DCC chip. What else do I need to do to get sound working?