N Gauge David Posted November 2, 2011 Share Posted November 2, 2011 I have a number of DCC Concepts Cobalt point motors operating on my model railway, connected to my DCC system using the AD1 or AD4 decoders. There is a noticeable buzzing noise which immediately stops when I cut the power to the layout. Does anyone have any ideas about curing this, as it can get quite annoying after a while! Thanks Link to comment Share on other sites More sharing options...
craigwelsh Posted November 2, 2011 Share Posted November 2, 2011 Are the motors reaching end of travel and stalling correctly? Link to comment Share on other sites More sharing options...
steveb860 Posted November 3, 2011 Share Posted November 3, 2011 Perhaps post in the DCC section!! Link to comment Share on other sites More sharing options...
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