Andrew Kerec posted a discussion
CP450C Sounder won't work with legacy transducer after software upgrade
G'day allI'm running E127 + E125 MFD's with a CP450C sounder module / TM265LH transducer. My previous sounder module (DSM300) had a pocket mount transducer which I have left in the boat and use as back up transducer with the CP450C (via the A102147 converter cable). This worked fine until I recently upgraded the CP450C software to V2.04 and the MFD software to V7.35 - after which time the CP450C no longer works with the old DSM300 transducer.Could this be software upgrade related with the CP450C and / or MFD's ?Its not super critical for me to be able to continue to use the old transducer as a back up - as i could us the inbuilt one in the E127 - I just like anything thats in my boat to work !Any assistance / advice would be greatly appreciated.CheersAndrew See More