[CA] [CA11] CP470 not recognizing transducer

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum Robinsonh2o,

Please excuse this late response. It is recommended that your e-Series MFDs be updated with v19.03 software (if not currently operating with this version of software) and that a Sonar Reset be commanded via the MFD's Fishfinder settings to address the reported problem. Should the problem persist, then it would be recommended that the CP470 be sent to Raymarine’s Product Repair Center to be bench checked / serviced. Should a circuitry failure within the CP470 be diagnosed by the Repair Center, then the transducer should be tested by a Certified Raymarine Installer having an Airmar TDT1000 Transducer Tester prior to connecting it to the CP470. Only transducers deemed to be operational with this tester should be reconnected to a CP470/CP570 CHIRP Sounder Module.