us2 transducer will no longer hold bottom. depth showing erratic and no bottom showing. been trying to figure out through process of elimination where problem lies. i have used two different sonar heads that work correctly on different transducers. have eliminated the extension cable by wiring directly to the tm head unit using the adapter cable then to the sonar head. There appears to be no difference. I should note that the transducer has a strong ping by feel and by hearing the clicking. Only thing that i dont know how to check is the adapter cable to eliminate that. is there a way to check it short of buying a new one? Also assuming the adapter cable is ok, could the us2 be bad even with a strong ping or does it have to be the cables?
also i should note that i have been using the spot lock alot lately causing the cables to twist and turn more then usual. thanks in advance