TZTL 12F unit shutting down

Mark clemens

New member
My furuno info
Was shutting off and on all by it self checked all connections everything was tight bottom sounder screen would go all blue with no info shown would shut it down and back on and would work till next time this went on for about four days then it shut off one afternoon and I had to restart it came on fine but All track lines were gone but hasn’t shut off since then just other day bottom sounder reset to factory defaults on it own couple time when shutting down on its own I would get a note at top of screen in a yellow bar no master chart detected
 
It sounds like the unit was starving for current. The alarm saying no master detected is because you cleared the unit but didn't turn the master setting back on the main unit. HOME - SETTINGS - INITIAL SETUP - CHART MASTER=ON
 
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