Question about Garmin nuvi 350 GPS Receiver

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My NUVI 350 has issues with the speaker it is completely dead, but if tap sometimes, it come-up with screeching sound

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Posted on Jan 05, 2009

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Nuvi 350 no sound

Check to see if you have sound with headphones. If so, you have a bad speaker. If not, you have a broken connections between the headphone jack and PC board. More information can be found here:

Feb 24, 2013 | Garmin nuvi 350 GPS Receiver


No Sound Issue on the Garmin Nuvi Series

I've seen many posts of "No Sound" or "Garbled Sound" for the Garmin Nuvi Series. This is a common problem with the Nuvi.

In order to troubleshoot this problem, we need to determine if it's a hardware or software issue or a setting issue.

No Sound:

1. Try the obvious. Is your volume setting turned up?

2. Is the sound muted with the mute button?

3. If your Nuvi has a FM transmitter, is it selected to "FM" or "Speaker"? The "FM" setting will mute the internal speaker. Setting it to "Speaker" will send sound to the speaker.

Garbled Sound:

1. Does the sound seem to be better at lower volume settings?

If you still can't hear audio or if the sound is garbled, then we now have to determine if the internal speaker is defective. The easiest way to do this is:

1. Plug a set of headphones into the headphone jack. Now try listening to the sound. Listen for the touchscreen beeps, MP3 audio, voice directions, etc. Try adjusting the volume using the headphones. If you can hear sound through the headphones and it's clear and not garbled, then your internal speaker is defective.

The headphone jack is not only a jack but it's also a switch. When you plug in your headphones, the audio amplifier of your Nuvi is switched from the internal speaker to the headphone jack. When you unplug the headphones, your Nuvi's audio amplifier is reconnected to the internal speaker.

Now, if you can't hear audio through either the internal speaker or the headphone jack, you may have a different problem.

1. The internal audio amplifier (hardware) is defective.
2. There is a software problem. You could try resetting your Nuvi with the reset button or perform a factory reset. The software problem is more likely if you can hear MP3 audio or touch screen beeps but not speech.

The internal speaker has a voice coil. The voice coil is nothing more than a thin piece of long wire, wrapped around a magnet, numerous times. If you can't hear any sound, it is very likely that this coil is "open"; meaning that the wire has broken inside. If the sound is garbled, this is an indication that the speaker is mechanically defective and not reproducing the sound as it should. The speaker has a "diaphram" that moves in and out as it reproduces sound. If the diaphram has been damaged, it can't move in or out like it should and reproduce the sound clearly. There is also a possiblity that the voice coil has shorted windings, meaning that instead of it being a long piece of wire, it's now shorted to its adjacent windings and is electrically shorter now. Again, this can impact the reproduction of sound.

So, why did your speaker go bad?

1. It's possible it was defect in the manufacturing process and failed prematurely.
2. You might have had the volume up too high. I recommend using the lowest volume level possible. High volume levels put greater stress on the diaphram and may overheat the voice coil.
3. A speaker is an electro-mechanical device. It's subject to being damaged if you happen to drop or jar your Nuvi and/or operate it outside of its normal operating parameters.

What's the Next Step?

If your Nuvi is under warranty, I strongly suggest that you contact the manufacturer and tell them what happened. Tell them all of the steps you have gone through to confirm that the speaker is defective. If the warranty is still in effect, they should repair or replace your Nuvi.

If your Nuvi is out of warranty, try calling the manufacturer anyway. You have nothing to lose. Maybe they will replace it anyway.

If you have no sucess with the manufacturer, you will need to take your Nuvi to someone who is qualified in repairing your Nuvi.

I hope this tip has been helpful to you. Feel free to contact me if you have further questions or require further assistance with this problem.

Best wishes,
- Jim

on Sep 30, 2008 | Garmin nuvi 350 GPS Receiver

1 Answer

Nuvi 755 said it was receiving GPS update. Now it

Plug the unit in , if the unit turns on, after it turns on do a hard reset, the directions should be in your manual or will be at

Jun 23, 2009 | Garmin nuvi 350 GPS Receiver

1 Answer

Sound Breaks up on my GPS if I raise Speaker over medium

Try listening with headphones rather than the internal speaker. If you can hear the sound in the headphone jack clear with the volume all the way up, then the internal speaker is bad.

- Jim

Sep 25, 2008 | Garmin nuvi 350 GPS Receiver

1 Answer

Garmins Nuvi 350 - voice interactive lost

I have the same problem with my Nuvi 350. It's only about 2 months old and the sound went. I turned it on the other day to use it and the sound did not sound right, it sounded like the speaker was blown. I turned it off and turned it back on and that was it, the sound was gone. I did everything possible and can't get the sound to come back. I called Garmin and now I have to send it in for repair. I looked around the web and noticed that Garmins have big issues with the sound going on the units. I hope they fix that issue.

Jul 28, 2008 | Garmin nuvi 350 GPS Receiver

1 Answer

Nuvi 350 - intermittantly loses the satelites and is useless. Have updated software and re-set the unit to factory defaults. Still, works sometimes, sometimes it doesn't. Am extremely frustrated as it...

I have a Nuvi 350 and have never had this problem. I know this doesn't answer your question, but it sounds like a technical issue with your unit.

Jul 08, 2008 | Garmin GPS

1 Answer

Garmin Gps Nuvi 300/350 stopped talking

I got a solution for this issue - buy a SPI Mini-Hi-Fi speaker - it's to be connected directly to the GPS output, there is no cord or cable, it's very light, sounds pretty well and it's totally affordable (around $10).
I've been used it for weeks, no problem at all!!!!!!!!!!!

Jun 07, 2008 | Garmin Nuvi 350 Car GPS Receiver

3 Answers

Nuvi 350 blown speaker

When you tap the GPS it is probably doing one of two things:

1. The tapping is temporarily reconnecting the broken voice coil in the speaker (speaker will need to be replaced)

2. The tapping is temporarily reconnecting a bad solder joint from the GPS motherboard to the speaker. (The solder joint will need to be resoldered)

You can either send the unit back for repair or purchase a FM modulator and retrieve the audio through your FM car stereo.

You can purchase an external FM modulator like those used on IPODS and CD players. I am using one on my Nuvi 350 and it works well. Just plug it into the headphone jack. Advice: Be sure to buy one that is crystal (PLL) controlled and NOT using a tuning dial. The FM modulators that use a tuning dial often tend to drift and they will also change frequency when you hit a bump in the road.
If you decide to send it back for repair, be sure to have your serial number handy. Register it online
if you haven't already done so.
Monday - Friday
8 a.m. - 7 p.m.
Central time (closed holidays)
1-800-800-1020 (U.S.)
1-866-429-9296 (Canada) or (913) 397-8200

Good Luck,
- Jim

Nov 25, 2007 | Garmin nuvi 350 GPS Receiver

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