I have an older furuno 1650 DF GPS Chart plotter and the brillance is too low and very difficult to se in day light. Is there a way to brighten the display further than the highest seting

If it does not have a usb port then you need to have a sd card reader on your pc and use that to transfer data

n the system setup, under “UNITS” I set BEARING to “MAG” (magnetic). This will cause the unit to display course / bearing information in relation to the Magnetic North and match magnetic compass readings. It is not the same as True North! One has to be careful with this setting. There are a number of areas where the earth's magnetic field is locally disturbed, sometimes very significantly. Your GPS may not account for it. - again, under “UNITS” I set “METRIC”.

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like to know how to change the furuno 1650 language setting

You need to determine if it's moisture or damage to the protective coating on the LCD glass. If the screen coating is damaged it will have patches or discoloration that resemble water spots like you see on windows and glasses exposed to hard water. If it's moisture between the glass and LCD you should be able to make out the tiny water droplets that are evenly spread throughout the screen. The only proper fix for a glass with damage to the protective coating is replacement of the bezel assembly. If it's moisture you can try inserting a few silica gel packs inside the unit. Don't try to disassemble the bezel (LCD/Screen) assembly. Just but the gel packs inside the 1650 chassis and give it a day or two. Otherwise, you're looking at factory repaire.

You must have a heading sensor input for radar/chart overlay. (i.e. PG500)

Yes and you have to get them from a Furuno dealer as they have to be purchased from Furuno. The cost is about $200. If I can be of assistance email me: [email protected]

http://www.fixya.com/support/r3771170-phone_water_damage

I know this is an old question but just ran across it. The 1833C/NT is a radar and chart plotter. It requires the external and optional black box sounder to have depth recorder functionality.

Try removing your chart card then powering up your unit. Chances are your chart could be bad and is causing the problem.

Try adjusting the GPS position offset in the GPS Sensor Settings Menu.