Question about Furuno FCV-582L GPS Receiver

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I have a furuno fcv 582l. The unit has just come back from the factory and works well until I power up any other electronic equipment on the boat. Then it flickers and the screen goes dark. Any ideas?

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Check the voltage getting to the device. You can set this to display using the menu. These sounders need about 11 volts minimum to work. I had a similar problem until I installed an additional battery to supply my accessories.

Posted on Jul 02, 2010

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You likely have inadequate supply to your helm. Otherwise, there is interference being generated. Try turning things on slowly one at a time, check your batteries and ground connections.

Posted on May 31, 2010


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I have a furuno fcv 585 echo sounder with a FURUNO CA50/200-12M -c13298 BRONZE THRU HULL HIGH PERFORMANCE TRANSDUCER. The transducer has 4 wires and it looks from the schematic that it attaches via a...

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this will also ensure that all power from sonar get to ducer, but it from me if you like 847-746-0100

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