cornishmick Posted January 3, 2014 Share Posted January 3, 2014 Hi there I have a slight problem and could do with some help I have a castle class oo gauge fitted with a lok sound v4 decoder from howes models sounds fantastic but I have a problem with half and top speed as it jerks at half and top speed and don't know why as it will cruel lovely at slow speed but once I open her up to half throttle she jerks as it accelerates and then when opened right up it will get up to maximum speed but still with a jerking motion are there any cvs I can change to rectify the problem any help would be great Thanks mike Link to post Share on other sites More sharing options...
Sultan Posted January 3, 2014 Share Posted January 3, 2014 Hello Cornishmick, This link http://www.dckits-devideos.co.uk/shop/dcc_digital_loco_sounds/ to a Loksound V4 help sheet put up by dcc kits may help you, it explains in easy terms how to carry out the built in motor calibration feature in the Loksound V4 chip which if you have not already tried will give you a good starting point.If this does not help then I'm sure other RM members will post other ideas for your Castle class. Best regards and a Happy New Year Sultan. Link to post Share on other sites More sharing options...
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