Thread: Furuno plotter

Its about 20ish years old (its a 7 inch colour display Navnet VX1). Chart card will most likely be CF card style.
I suspect it will have suffered gps rollover so date and time will be incorrect.
You say it indicated correct position, does it show your vessel moving when you are moving? If you press the Alarm Key it should tell you the reason for the alarm
They used a 7 pin GPS engine antenna connected directly to Data 1 connector or could also be fed position from a standalone GPS depending on installation

Other than that I will leave it to other posters who clearly know more than me