Reset factory defaults...
Turn sonar off. Press and hold the down arrow button and the menu down button at the same time. While holding the two buttons down, power the sonar up. After power up, release the buttons. This loads factory defaults. I am an expert resetter.
I don't think this is your problem.
Check for corrosion at the connector. Lowrance is notorious about corrosion problems with this cheap connector. Also check your voltage. If you don't have at least 11v at the connector, this unit want work worth a crap.
Last edited by Cane Pole; 08-06-2007 at 05:16 PM.
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