Question about Panasonic Strada CN-NVD905U GPS Receiver

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Turning off the unit is on and playing and then randomly it goes to a screen and the music stops and the screen says error and i dont know how to fix it but turn my truck off or hit the reset button and the manual says it has something to do with the amp but i dont know wat the problem is

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Re: turning off

I fixed it the problem was not getting enough power to the unit

Posted on Dec 21, 2007

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Re: turning off

I had the same problem on the weekend...I think it may have something to do with the unit getting HOT, they say not turn the screen off whenever you can, cause that is what generates alot of heat

Posted on Dec 19, 2007

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Have lost sound on the system. I have checked to see is system is muted and it is not and the FM Transmitter is not enabled.


just to confirm this is the nuvi 750 unit? if it is something else let me know.

Turn the unit off, and then back on. Now Slide the power key to the left and hold for 10 seconds the unit turns off. Turn the unit back on, it should work normally.

if you still don't have sound, try playing some music from the unit - Touch tools, media player, touch source to open the music player, trouch browse, touch a category, to play the entire category touch play all.

if you don't have any music in the unit (mp3 files are supported and you can load them to the memory card or with a data cable over your computer)

Double check that you got the volume turned up if you don't hear anything, from the menu page touch volume and then touch the speaker icon with the waves coming out of it to adjust it up.

if the sound is still gone, lets reset the entire unit and restore it to factory settings.

Enter the maintenance mode as shown on this video by holding your finger on the bottom left corner, sometimes the right corner of the nuvi and once in maintenance mode select clear all user data, that will reset the unit back to factory.

Feb 11, 2011 | Garmin nuvi 750 GPS Receiver

1 Answer

Hi, i brought my unit at 2008. During this 2 years i used my unit a lot and for that reason i have lost my serial number (scratch). Is there any option that i can update my unit with new maps of Canada...

If the serial number isn't present on the outer case then you can find it another way.

Turn on the machine and press and hold the battery icon until the screen goes into diagnostic mode. The data displayed on the 1st screen will include the serial number. CAUTION: don't fiddle with any settings unless you know exactly what you're doing, but there are a few useful items on some screens including the facility to set the headphone output to line output. It's really useful if you want to stream music from the machine into an audio head unit.

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Jul 22, 2010 | Garmin nuvi 255W GPS Receiver

1 Answer

Unit has stopped providing audio directions. Is there an easy fix?

There is a easy fix. Try going into your Tools Menu then Language. Go to Voice and make sure that one is selected. If it is you still dont here anything you should check the FM transmitter by clicking on the volume icon in the main screen. Make sure it is not enabled.

you can also do a reset. Turn the unit off. Hold you finger in the bottom right corner of the screen then turn the unit on. Keep your finger in the corner until you see a prompt asking if you want to erase all user data. It may take a few try's to get the reset right.

This Video is about the Zumo 660 but the language setup is the same.


Jul 14, 2010 | Garmin nuvi 750 GPS Receiver

1 Answer

Garmin Nuvi 650 Touch Screen trouble...

Yes, this is a common problem with a new style screen being used by SHARP. Please see this link:

- Jim

Dec 07, 2009 | Garmin GPS Devices

2 Answers

On/Off button not working on Nuvi 660

Reset button behind the Antenna, press this in for a few seconds.
Use the Web-updater at Garmin, to update it too,
connecyt it to a PC and run the update,
If still playing up, Use the Firmware update at Garmin for it,
(( google Garmin 660 software updates ))
Should be fixed then

Aug 20, 2009 | Garmin Nuvi 660 GPS Receiver

1 Answer

Stuck cannot reset

Somone on here said to try the rest button and see if that works

Jan 29, 2009 | Garmin StreetPilot c550 GPS Receiver

1 Answer

Blank Screen on Garmin E-Trex Vista

Yes, this problem has been caused by the launch of a new satellite earlier this year. As soon as your unit gets a fix from the new satellite, it causes this problem. Simple immediate fix: disable WAAS in the setup. Permanent fix: go to Garmin website and update your unit's software and it will fix this temporary problem. Enjoy your GPS and don't forget to come back and tell us if this fixed your problem.

Aug 19, 2008 | Garmin 010-00358-00 GPS Receiver

1 Answer




First off you may want to check what kind of SD card is in the slot. it's underneath the rubber. I haven't worked with the 2000's all that much so I'm not certain if your concern could be fixed by changing a setting in the settings menu of your 2000. Look for the word Demo everywhere!

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Oct 25, 2007 | Magellan RoadMate 2000 GPS Receiver

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