[CA] [CA11] Problems with Fishfinder

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum MojMoj,

It is recommended that you verify that the transducer's cable has neither been modified (i.e. cut/spliced) or has been adapted to be mated to the DSM. It is also recommended that the P66 transducer plug's pins be inspected for signs of corrosion and if not such corrosion is found that its plug be reconnected to the DSM's transducer socket, and that its locking ring then be rotated into the locked position to secure it to the DSM. Should the problem persist thereafter, then it would indicate a problem with the transducer or the DSM itself. Using a Airmar transducer testing tool, a Certified Raymarine Installer may be able to determine whether there is a problem with the transducer. However, should the problem be fault isolated to the DSM and should it be desired to continue use of the C-Series Classic MFD as a fishfinder, then it would be necessary to replace the DSM with an operational second hand DSM30 or DSM300, as Raymarine can no longer service these sounder modules and the sounder module which replaced them (i.e. the CP370) is not compatible with C-Series Classic MFDs. Before seeking a replacement, one of Raymarine's dealers (Sea Wire Marine) specializes in repairs to equipment which Raymarine's Product Repair Center can no longer service. Accordingly, it would be recommended that they be contacted to determine whether they can service your DSM30.