[CA] [CA11] Need help with E-series MFD sonar depth

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum Coomz,

While it is possible that the reported problem may be resulting from a failure of the MFD's fishfinder circuitry or that of the interfaced transducer, the symptom reported may also be indicative of the incorrect type of transducer or use of the incorrect transducer frequency. Please identify the model of transducer which has been interfaced to the e7D MFD's Transducer socket. In doing so, it may be helpful to have you attach a photo which clearly shows all information which has been printed onto the transducer's tag.