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Question edited for a lot more clarity. All question need FULL 'make model (what it is)'.
Question moved from 'Power Computers' to Lowrance.
Your problem is in the boat. You either have a bad electrical connection, or a bad connection TO the transducer or the transducer itself is faulty. You can return the transducer under warranty or return it for testing. It is unlikely to be the internal memory IMO.
Check for corrosion on pins and make sure that you have enough power, not with volt meter but test light. It is probably not cost effective to repair older unit
Press & hold the + & - key while powering unit on, continue to hold the +/- keys until the unit boots up to warning screen. This don't do it, call support 800-628-4487 and talk to a tech as an "experienced technician". Best luck & good fishin!
I THINK what you're running into here is a poor power connection. (either positive or ground) It would appear to me that as the connection heats up, it is unable to carry the amperage needed to keep the unit running.
Carefully inspect, clean and lubricate with silicone spray the connections, (pay particular attention to the terminals at the power supply AND the fuse holder.)
Hi
One of the two cables is for power to the battery while the other supplies power to the transducer. BOTH cables (+ and -) must be used and intact.
In case anyone requires it, here is the link to the installation manual.
Hope this helps.
-Steve
Lowrance has started using the same power cord on their Elite units and their HDS units. The yellow wire on the power cable is an accessory wake up wire designed to be used in conjunction with the structure scan modules for the HDS.
You can simply tape this wire off during your installation ND ignore it.
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