Perhaps you can speak to him and get his opinion on what we tried and what hes thinking Earlier in the day Ron advised me to try to plug the unti in wo radar or Sd card.

Really good shape physically and Radar is hooked up to it as well.

Brilliant (brightness) goes up and down erratically 8,7,6,5,6,7,8,7,6,5,4,5,6,7,8.then it starts counting down a shut down randomly.3,2,1,3,2,3,2,3,2,1 then just off.

Background: Owner said he had issues with the radar working.sent it to Furuon and they replaced the radar board in the vx2 unit itself and had Furuno fix it six months ago.

He also said he replaced the cord that connects the unti to the radar so thats new.

Hes also sent the vx2 back to Furuno a few weeks ago and he said Furuno replaced the power switch bc it was bad.

What Ive done to try to isolate it: We thought it was a load or wiring problem so I tested the voltage everywehere and it seems fine.

Over 12 volts on the battery(s), at a terminal bus, at the fuse box and even at the end of the power cable that goes into the unit itself.

Even after it shut down on me yesterday I disconnected it and measured at the power cord and there were over 13 volts.

I even tried wiring the fuse panel straight to the battery and still the same issue.

Oddly enough the last 2 trips out it has lasted 2 hourts and then 1 hour before shutting down though.

I tried disconnecting the radar and seeing if it still happened today and it wouldnt even turn on this time.

Just kept beeping like it was trying to start up but it wouldnt.

There isnt really a radar board per say in the Vx2, so the previous owner could have been a bit clearer in his description of what was done to the unit.

Your problem would most likely be totally unrelated to any radar issue.

Your problem sounds more like a front panel problem, most likely to do with the power button area.

When the previous owner had this serviced, was it a local bench tech, Furuno authorized dealer or the Furuno service center Was this unit soldserviced by Furuno USA or other Furuno distributor I might be able to bring up some case history on it.

The problem would really need to be evaluated for repair by a qualified technician (like one of our authorized dealers) or our factory service center.

It could be caused by a larger problem like water intrusioncorrosion.

I have seen issues in the past where units were improperly installed without the sponge gasket.

High impactsvibrations and over tightened screws without proper gasket) Hairline cracks can be hard to see.

This is only one example of what might have led to problems prematurely on this unit.

If in the USA, you can find our dealers using our dealer locator link on our web site.

If outside the USA, you can find your distributor from the main Furuno.com web site.

Overall, if you are in the USA; I would suggest you let our factory service center evaluate it.

Sometimes they will cover some repairs outside of warrantee depending on what they find on a case by case basis.

Furuno Radar 1830