I don't know if other nuvi 350 are like this but I just got mine less than a week ago and there is a constant buzzing noise coming from the stereo of the unit that sounded like the buzzing noise when you turn on a compact fluorescent lamp but in my case the buzzing won’t stop. I know it’s not the stereo because if I plug in my earphone then the buzzing stop. Funny thing is that if I turn the unit’s backlight all the way up or down then the buzzing stop but anywhere else in between the buzzing come back. Anyone with this problem?
Hums are quite often caused by a poor ground...
If you have funny noises when connecting it to an external amplifier, like the aux in for your car, but things are fine with headphones, you probably have a ground loop -- isolators for curing ground loops are relatively inexpensive. Don't remember if I've seen them mentioned in threads on this board, or if it was somewhere else.
If you go to Rat Shack (or similar place) and say "ground loop" and "isolator" they should be able to help -- and if they want more than about $20, drop me a line, and keep looking!
(For the technically inclined, you can make a cable for testing ground loops by taking a stereo extension cable, cutting the ground/shield connections, and putting a small resistor, 5 to 10 ohms, for example, in series with the ground/shield legs. The small introduced resistance won't effect signals all that much, but should be big enough to get rid of ground loops. The right way to do it is with transformers.)
. . . there is a constant buzzing noise coming from the stereo of the unit that sounded like the buzzing noise when you turn on a compact fluorescent lamp but in my case the buzzing won’t stop. Anyone with this problem?
1.) Where, exactly, are you hearing the buzzing? When you say "stereo of the unit", I would think that is the GPS.
2.) If it is coming from the car stereo speakers, does the problem occur when you are listening to FM radio or listening to directions from the GPS; if it is while listening to directions, do you have the GPS unit connected to the stereo via an AUX input port or a cassette tape adapter?
3.) If the problem occurs with FM radio reception, is your radio antenna in your windshield, and how far away from the antenna is the GPS unit?
4.) When you say it stops when you plug in your earphone, are you talking about plugging it into the GPS or your stereo?
The buzzing noise is coming from the nuvi's speaker.
The nuvi is not connected to any external sources like fm tuner or AUX port. I know the problem is not with the nuvi's speaker because even if I mute it, the buzzing noise continue. Only way to stop the buzzing noise is to set backlight to minimun or maximun. I'm thinking this nuvi is a bad one.
Oh well guess I'll have to live with that.
Why not swap it out for one that doesn't have the problem.
How can I do that?
...since it's only a week old. If that fails, talk with Garmin about warranty service.
I have very sensitive ears and can hear the LCD display produce a humming sound when there's not too much ambient noise. Have you tried turning down the volume?
Yea even when mute the buzzing sound continue. Probably a defective one.
moving the unit away from the other electronics in the vehicle and see if it improves.
Actually I'm in my room and that doesn't help but thanks anyway. I've decided to send it back and get a refund.
I have seen/heard of hum/whine with the occasional digital camera that has a defective backlight circuit. If the hum that you hear is affected by the brightness setting, it's probably a defect in the backlight and should be replaced.
when I had the Nuvi connected to a rental car's sound system via the AUX jack. There was a direct correlation between the map being drawn and this persisent buzzing.
I don't hear any buzzing when the Nuvi is playing thru its internal speaker.
Just started on my wife's 3790. So far turning the screen intensity down and then back to 100% works. I'm not sure why this started after all this time, maybe the intense heat sitting on the dash this Summer. It has told me a bunch of times that it needed to shut down because of it. Its a first with all the gps's I've owned.
Did the OP not say it is a 350 ???
That's ancient in today's world.
Just wondering if the antenna has a loose hinge?
The 350 was maybe the only one where you had to flip up the antenna for it to work.
Yes old, as is this thread started in 2008.
Yes indeed, the 350 was still an infant, less than three years old back when the thread started.
I don't know why "Speed2" would even resurrect an OLD thread from 7 years ago !!!
Sorry I did not even look at the dates.
Was searching on buzzing and this post came up, never thought of looking at the date, and neither did you. It was all about BUZZING. My wife was in my ear...."fix it". I had lots of Buzzing going on that day.
Was searching on buzzing and this post came up, never thought of looking at the date, and neither did you.
I replied to a very recent posting at the time. I did not go looking for an ancient post and then resurrect it!
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