20 Most Recent Furuno NavNet vx2 GP1720C GPS Receiver Questions & Answers

the output is on the black (blue) and white wires. in system setup, portsetup, you can select which sentences it sends out. 847-746-0100

If this is on the radar screen, you'll have to set your heading alignment on your radar. The radar may be 180 degrees out. if this occurs on the plotter, then if you have a heading sensor attached or an autopilot, your heading may be off.

Get someone from a marine electronics company to do this for you. If you are unsure of the basics of what you need and you attempt to do this while going in blind, you may ruin your nmea ports on your navnet and autopilot. While I understand that you are trying to save $$$ by doing this, there's more to it than just wiring. There are port setups and nmea sentences to enable etc.

perhaps someone has messed with your sounder settings. You may want to factory reset the sounder from within one of the menus in your navnet. Also you may have a transducer going bad. Did you hit anything with it or run aground once? Maybe someone painted over the face of the transducer with bottom paint. There's alot of things that can cause this to happen. It would be best to have the sounder checked out before you do anything to the ducer. Remove your navnet and sounder and take it to a dealer to test on the bench. If you're in the maryland area, Mid-shore Electronics and handle this for you. Even if you're not, you can send the units to them.

Question edited for clarity.Page 75 of the manual refershttps://www.manualslib.com/manual/1183586/Furuno-Gp-39.html?page=75Menu - System - LanguageMenu (the U with two dots over it Umlaut) - System - Sprache..

303030 try this is a original one

There are set by you to feet, metres, 'F or 'C, knots, kph, or mph.From a bit more reading, depth is Feet, distance is Nautical Miles. Temperature you have a choice.Note: The water temperature graph can beset on or off (See page 11-4.). The temperature scale is fixed between 20-80 °F (0 to30°C).Read the manualhttps://www.furunousa.com/-/media/sites/furuno/document_library/documents/manuals/public_manuals/gp1650fdf_operators_manual_version_m.pdf..

You would obviously be better served if you learned how to google it https://downeastboatforum.com/threads/1650-battery-replacement.12881/

https://www.youtube.com/watch?v=AQW4EoQPM00 hope this helps if so leave some feedback 8]

https://www.admiralty.co.uk/AdmiraltyDownloadMedia/AVCS/ECDIS-Install-Guides/Furuno3000%20User%20Guide%20S-63%201%201.pdf https://www.admiralty.co.uk/AdmiraltyDownloadMedia/AVCS/ECDIS-Install-Guides/Furuno3000%20User%20Guide%20S-63%201%201.pdf

Possibly voltage too low, faulty unit, no power coming to the unit.