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Discussion Starter #1
I have a Lowrance LCX-IIIc HD which I recently purchased from an auction. When connected to 12V and press the power button, it just flashes a white screen then immediately powers off. It is in excellent cosmetic condition and doesn’t appear to have been abused at all.

Could there be an internal fuse I may look for which may need replaced, or would this be a different issue? I'm just gathering ideas for now before disassembly. Thank you in advance.
 

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Some people I know but you can try a hard reset
1- Unit off
2-Prees ZIn and ZOUT at the same time
3-Press and hold power key
4-Release both buttons when the usa map appear.

Be sure also that you have 12 volts plus
 

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Discussion Starter #6
Problem solved - I had it connected to a 12v car battery and it powered up with no problems.. but when connected to a 120v-12v converter, that's when I get the white screen, then nothing. I guess it's not designed for a voltage converter connection. Thank you for your replies just the same.
 
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