My O gauge sound equipped 33 didn`t have the fan fitted to the chip when it was installed. I have installed the wires to AUX1 & +U terminals , this operates on function 19 on my Lenz handset. Can anyone tell me how to turn down the fan motor , I have tried CV291 , that had no impact. The function menu tells me that had the fan been installed it would have been on number 12 , when I operate that number there is a sound. My chip fitter doesn`t give advice. Tony.
I found out the answer, CV31-16 + CV32-0 must be checked they are set at that , then CV275-2 + CV278-2 . TONY.
