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What do i use from my 12v battery to my electrics on my boat eg adio, nav lights and fishfinder is it a circuit boad

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Fuses ?

Posted on Apr 18, 2009

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Over 1/2 my electrical system want work


Good Morning Richard,
Check Your Battery Connections Clean And Re Fit All Wires At The Battery.
It Sounds Like You Have Lost One Or More Connections To The Battery.Check Fuze Box
Cheers Gordon

May 11, 2014 | Light Outboard Motor Boat Bass Fishing...

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How to connect fishfinder to 2014 carolina skiff jvx 18 cc


get a volt meter I would suspect that the breaker would have positive only on it, Run a wire directly from the negative terminal of the boat's battery to the negative on the volt meter and then test the toggle switch with the positive lead of the volt meter to find out what is being switched when the accessories are keyed to on. If you don't want to use a volt meter you can use a probe like this one http://www.banggood.com/Waterproof-Voltage-Digital-Electric-Sensor-Detector-AC-Or-AD-12V-250V-p-918269.html?currency=AUD&utm_source=google&utm_medium=shopping&utm_content=miko_ruby&utm_campaign=Industrial-au&gclid=CNTr_uG7hL4CFY2CvQodfIcAQA. or use a 12V light globe soldered to a black negative wire and then solder a red wire to the other globe terminal and put the black wire on the boat negative terminal. Finding negative will be your challenge. The metal frame under the dash may be hooked to negative or the metal case of the key switch may be connected to negative. you may wish to run a negative wire through the boat connected straight to the negative on the boat battery if you can't find a good source of negative.
see http://www8.garmin.com/learningcenter/on-the-water/echo/ installation video for help with your project. Use a pin pressed into the wires that come off the key switch to find the switched accessory wire via a voltage test. You may need to shave the insulation back and solder a positive wire to it and then tape it up with insulation tape where the join has been made. (I used to install car phones years ago ) Hope this is some help and gets you on the right path

Apr 26, 2014 | Garmin Echo 550C 5" Color VGA Fishfinder...

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Hi,do I have to ground my fcv587 if I run straight from my 12v battery?


Grounding the unit is recommended by the manufacturer but the unit will work ungrounded. The negative DC input point is not necessarily chassis ground so connecting the power leads won't assure a direct ground connection. The reasons for grounding the chassis range from external noise reduction to lightning protection to electrolysis reduction.

Mar 21, 2014 | Furuno FCV 587 Color Fishfinder

1 Answer

Electrical problem with console items, nav lights etc


It sounds as though the ground has been lost either at the batteries or along the way from the battery. Check for a good ground at the grounding shunt by using a known live source.If that is good you can run through the process of elimination by checking from the ground shunt to the pigtails, make sure each one is clean and tight. The fuses are often found to be corroded within, if this is the case you might want to change them over to marine quality breakers. It's worth it in the long run.Also make sure your constant feed to the bilge pump is live, it doesn't make sense for those two units to be out, especially the bilge pump. Check the back of your main battery switch for any corrosion or loosness.

Sep 05, 2009 | RCA Boating

1 Answer

Convert portable batteries to 12 volt boat ststem, Eagle Super Pro I.D


Cut the battery wires where they hook up to the machine. When cut they might need some more wire spliced to them. Get some alligator clips to put on your red and black wires to hook right to your boat battery. When not in use on the boat get a small 12 volt battery, cheaper then two 6 volt disposables.

Aug 10, 2009 | Eagle Fishmark 320 Portable Fishfinder

1 Answer

To wireup 160c Garmin fishfinder, there are seven clored wires. The book shows red and Yellow to hot. Black and blue to ground. Do the white, green and brown connect? Can the black and yellow be connected...


You only need the red and black wires to supply power to the unit. The red positive wire goes to a positive terminal on your battery or positive side of a bus bar or switch, the black negative wire goes to the negative terminal on the battery or negative common bus bar. Do not try to earth the black wire to an aluminum boat hull... You are asking for trouble! Best to run the black wire straight back to the negative battery terminal or negative bus bar that is wired to the negative battery terminal. The other colored wires on the 160C plug are used for interfacing with NMEA2000 compatible devices, like a compatible GPS.

Jun 14, 2009 | Garmin Color Fishfinder 160c

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Sea talk failure


Remove all wiring from 4000 head, hook up only 12V, if seatalk fail continues, it is the head. if seatalk fail goes away, hook in instruments one by one until the bad head is found. Seatalk is 12V red, Ground Screen(bare wire) and Data yellow (pulsing voltage). good luck 847-746-0100 John Barry

Jul 14, 2008 | Raymarine A65 Combo GPS...

1 Answer

False fish readings


False fish readings are commonly caused by electrical interference such as alternator noise, and by air bubbles flowing across transducer.

For starters make sure your fishfinder is on an independent circuit and not on one powered by your ignition switch. In other words, you should be able to turn your fishfinder on, even though the engine is turned off. Ideally the fishfinder should be wired directly to the battery with an in line fuse.

Try running the boat at a speed slightly higher than trolling speed, then kill the engine, as the boat slows down to trolling speed do you still see false echos? If yes then the problem probably lies with how the transducer is mounted, or where it is located on the hull.

If you don't see the false echos when the engine is off, it may be necessary to reroute the transducer cable to keep it away from the boat's ignition wires. You can get transducer extension cables if necessary. Also there are filters that you can buy that suppress alternator noise buy attaching between the battery and the engine.

Another common cause of false echos from electrical interference is a transducer cable that has been cut and spliced.

I hope this information helps. Please reply if you have any questions about my response.

Feb 25, 2008 | GPS

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