Question about Garmin GPSMAP 76 GPS Receiver

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Garmin GPSmap 76 locks up once satellite acquisition is complete.

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  • rt-sail Apr 13, 2009

    After satellite acquisition, screen goes blank except for veritcal line. Buttons fail to work, including power off. But, simulated navigation mode doesn't produce the problem.

  • capt123 Apr 14, 2009

    Exactly same trouble. have to remove and re-install batteries in order to use unit. Works for a few minutes and then locks up with thin line top to bottom.No response from any inputs.

  • Anonymous May 16, 2009

    same problem as above

  • jokuznia May 22, 2009

    My Screen just gets 1 verticle line and Locks up. I have to remove the battery to turn it off

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Does the screen go blank with a faint vertical line (top to bottom)? If so, I had the same problem (blank screen, vertical line). After speaking with Garmin, I was told to make sure I was using the latest software version, and to turn off the WAAS function. Disable it for now, because the WAAS signal, coming from the satellite, has changed, and Garmin has not yet published a remedy to correct this problem. A fix should be out in a software update, sometime in the future, hopefully. I also did the software update, to the latest version 4.0. The unit performs perfectly now, however, the accuracy is not quite as good, due to the lack of WAAS. Good Luck!!

Posted on Dec 14, 2008

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How to set time and date on GPSMAP 295


Set the time zone and daylight savings according to the instructions on page 76 of this manual. The time and date are automatically set from the information received from the GPS satellites.

Jan 28, 2013 | Garmin GPSMAP 295 GPS Receiver

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How to Upgrade and Fix your Garmin GPSMAP 545s System Software


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Does your Garmin GPSMAP 545s freeze up?
Is the screen stuck, or do you loose satellite coverage?

I recommend upgrading the system software of your Garmin 545s. There may not be physical damage to your unit, and it may be completely revitalized by replacing the GPSMAP software with the latest version 5.30 (as of January 7, 2010).

  1. Click on "Download" and choose to save the file to your computer.
  2. Choose a location where you can easily find the file, such as the 'My Documents' folder or 'C:\'.
  3. Once the download is complete, go to the location where you saved the file.
  4. Double-click on the downloaded file. This will automatically extract the files to C:\Garmin and run a program to transfer the software update to an SD card.
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on Jan 31, 2010 | Garmin GPSMAP 545s GPS Receiver

1 Answer

Garmin GPSMAP 172C - cannot find satellites (WAAS)?


WAAS is a seperate service from GPS. It provides GPS corrections so if you can not get WAAS there is no big problems. you unit just wont be as accurate as normal. WAAS only is for North America and EGNOS for Europe. You may want to turn WAAS off for now. I suggest trying a update for the unit. You will need a memory card and Garmin USB programmer. Then just go to garmins site to get the latest update. If you need a USB programmer feel free to Contact GPSCity.ca or GPSCity.com. They are the leading experts in Garmin GPS.

Jul 12, 2010 | Garmin GPSMAP 172C GPS Receiver

1 Answer

Will not acquire satellite signal and continously updates firmare


I can help you fix your Garmin Nuvi 200W. I am going to recommend a HARD RESET for you, to try and break the firmware update cycle you said you are locked into. Once you have successfully completed the WebUpdate, satellite acquisition will be vastly improved with the new system software.

There are three steps to take to get your Nuvi running like new:

  1. Back up your Favorites (if your pc will still recognize it or you have a memory chip you can pop into a card reader).
  2. Perform a Hard Reset.
  3. Download and then run Garmin WebUpdater to replace its firmware / system software.

I hope that helps.
___________________

Nuvi 200 series manuals available here.

Apr 10, 2010 | Garmin nuvi 200W GPS Receiver

1 Answer

My gps freezes when locked on third sattelite


Hi! these occurs mainly due to detail value(s) input and map redrawing directions apart from memory levels.

Dec 21, 2009 | Garmin GPSMAP 76 GPS Receiver

1 Answer

Garmin GPSmap 76 goes to vertical line


before you throw it away try vchanging to new battery

Jul 05, 2009 | Garmin GPSMAP 76 GPS Receiver

2 Answers

Unit shut down


I have run into the same problem and it may be related to the WAAS (Wide Area Augmentation System) feature. Try disabling this feature (under MAIN MENU / Setup). I used this receiver overseas (Asia and Europe) last year for 35 days straight with no problems. During this time WAAS was disabled as none of these satellites are visible overseas. The problem occurred intermittently prior to the overseas trip, and has reoccurred after returning. I was running into the same problem this past weekend and noticed the screen blanking out (with the vertical line) shortly after differential corrections were applied to the GPS signals. I disabled the WAAS and let the receiver run for over an hour. The problem did not return. Hope this helps.

Sep 25, 2008 | Garmin GPSMAP 76 GPS Receiver

3 Answers

Garmin GPSmap 76 not acquiring satellites


You need to do an auto locate. This also corrects your time issues (wrong date and/or time will be corrected. To do an auto locate do the following.
  1. Start with the unit turned off.
  2. If you have a GPSMAP 76, GPSMAP 76C, or GPSMAP 76S, hold down the Page button. If you have a GPSMAP 76CSx or GPSMAP 76Cx, hold down the Zoom Out button.
  3. While holding down the first button (Page or Zoom Out), press and hold the Power button.
  4. Continue to hold the two buttons until the Satellite page displays. You can then then let go of the buttons.
  5. Finally, let the unit sit outside with a clear view of the sky. Allow about 20-40 minutes for the unit to acquire satellites.

May 01, 2008 | Garmin GPSMAP 76 GPS Receiver

3 Answers

My Garmin GPSMAP 76S will no longer accquire any satellites


I had the same problem? GPSmap76S was hung up trying to AutoLocate. It just couldn’t find itself, and it just stopped working all of a sudden one day, while I was traveling. I spoke with Garmin about the problem, and they advised me of an ongoing problem with WAAS. I was told that I should "Disable" WAAS, because the signal from the WAAS satellites had been changed by the government, and Garmin had not yet put out a software update to address the problem, on the 76 units, anyway. Also said that an update "should" come out, in the future, however, no commitment or promise on that. Evidently, once your unit hits one of the WAAS signals, it scrambles up the receiver in the GPS, because mine sure went crazy. The support guy also said, that if this did not correct the problem, I might also want to try a "Master Reset". So here’s what happened.
I disabled WAAS, but this did not correct the problem. The unit was still lost out there somewhere, trying to AutoLocate, so I ended up doing the “Master Reset”. Please read up on this procedure before trying it, and understand that you “will loose” any settings that you might have made to the GPS, along with all waypoints, routes, tracks, etc., however, my maps actually remained in tact? This procedure will actually set the unit back, just as it was when it originally came from the factory. Once completed, you will then have to allow the unit to initialize it's self again, just as you did when the unit was new. If you have forgotten about doing that, it simply means that you need to set the unit outdoors and leave it “on” for a while (15 – 20 minutes), until it actually AutoLocates it’s self, or locks in on your current position. Once this is done, re-do your setting preferences, back to the way you had them before the Master Reset. At the very least, you’ll have to re-set it to the correct time zone, and tell it about daylight savings time. Note: It’s a very good idea to go thru first, and jot down your page settings and main menu settings, before doing this procedure, or the screens may not look familiar to you, once the unit resets. You think you’ll remember them all, but you won’t. But whatever, once you have done the “Reset” and “Initialization”, you must now hook the GPS up to the computer and reload your waypoints, routes, etc, back to the GPS. You did have them saved on your computer, didn’t you? Hope so… If so, you should now be good to go…………….
My unit now works like a champ, good as new, just not as accurate, due to WAAS being turned off. I still don't know if the WAAS issue, was part of the problem or not, but I do know that the Master Reset got the unit back to working immediately, allowing it to locate itself almost instantly. What a relief…………..it’s a little work, but it takes much less time than it took you to read this post…………..
Hey, when all else fails, call Garmin 1-800-800-1020. They are good guys and willing to help, in fact, I would advise you to call them before you do anything, so you can describe to them, exactly what your unit is doing. I am only relating my situation and what happened to me. Your situation may be different……. .

Dec 08, 2007 | Garmin GPSMAP 76 GPS Receiver

3 Answers

GPS screen went blank


My problem exactly. Unit would start up, acquire satellites, then the screen would go blank with a single vertical line. Unit would not respond to buttons or even turn off. Unit works fine after I did the reset:

- w/unit OFF, press and hold QUIT+DOWN+MENU
- press and release the power button, release DOWN, keep holding QUIT+MENU for 5 seconds.
- unit prompts something like: "erase all data;" choose yes.
- you will lose waypoints, etc.

Go to the Garmin support area for details.

http://www.garmin.com/garmin/cms/site/us/support/searchsupport

Search for: "How do I reset my gpsmap 76"

Oct 06, 2007 | Garmin GPSMAP 76 GPS Receiver

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