Question about Garmin Eastern Mountain Sports - Gps Map 76c GPS Receiver

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ETrexLegend horizontal drive fails

After an indeterminate amount of time my eTrexLegend locks up with only the vertical drive, a solid vertical line displays, and all button functions become inoperable including the power switch. To escape from this I remove battery power. A buddy with the same model is experiencing the exact same problem with his. Any idea what's causing this? I have not yet contacted Garmin.

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I contacted Garmin. They suggested a software upgrade to Ver 7.9. I did so and the problem has not returned. Here is the link for the Download........

http://www8.garmin.com/support/collection.jsp?product=999-99999-27

Posted on Dec 06, 2008

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Horizontal and vertical lines when turned on


Any distortion in the graphics such as lines, splotches, wrong colors is an indication of a defective LCD. Please see this link for more info:

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Oct 03, 2013 | Garmin nuvi 1450 GPS Receiver

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I have a Garmin 1440. There are two horizontal white dotted lines and on blue vertical line on the display. A reset failed to clear them. Any suggestions? Thank you in advance!


You can not rest these. This is a failure of the LCD display. It is caused by transistors that are either stuck on or off. The only way to fix this problem is to replace the display.

Sep 11, 2013 | Garmin nuvi GPS Devices

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Lines on display, numerous horizontal, 3 vertical


This problem is caused by a defective LCD display. It is a common problem too. The only way to repair it is to replace the LCD display.
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Dec 20, 2012 | Garmin nuvi 1450 GPS Receiver

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White screen with red blue vertical lines


If the unit was dropped there may be nothing you can do. If you are skilled with electronic repair you may check the circuit board connections inside, but internal damage to the board or screen will most likely be beyond repair. If the unit is fairly new there may still be warranty coverage, check with Garmin.

Aug 04, 2012 | Garmin nuvi 1300 Car GPS Receiver

1 Answer

Two horizontal white lines on top of display and one yellow line vertical trough display


Any lines on the screen that are not supposed to be there is an indication of a defective LCD display.

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Jul 15, 2012 | Garmin nuvi 1450 GPS Receiver

1 Answer

Good morning When I switch on my C70 i have not the normal screen, only vertical lines. Sometimes the screen works, but next time the same problem appers...vertical lines e can't use it. Can you help...


I recognize the problem. It mostly occurs when the plotter is exposed to moist during some days. The contactstrip which connects the computer to the screen gets moist and does not conduct in an optimal way. The result is a non readable screen with stripes

The solution is simple: press on the edges of the screen and the contact is re-established.

Oct 04, 2010 | Raymarine C70 GPS Receiver

2 Answers

The display of the C70 has stopped working. Instead of a picture it only shows either vertical bands of color or just black/white vertical/horizontal lines. Occasionally the display comes back but only for...


I recognize the problem. It mostly occurs when the plotter is exposed to moist during some days. The contactstrip which connects the computer to the screen gets moist and does not conduct in an optimal way. The result is a non readable screen with stripes

The solution is simple: press on the edges of the screen and the contact is re-established.

Jul 18, 2009 | Raymarine C70 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

1 Answer

My Nuvi 310 can't find satelites.I have re-booted several times but without any Joy.the re-boot also locked on the map display The Mall in London.!?


There are a few things you can try to restore satellite reception.

1. place your finger over the lower left-hand corner of the screen and hold it there
while pressing the on/off power button. Keep holding your finger there and a window should pop up asking if you want to go into maintenance mode. Select yes. There is an option called "clear user data". Select that option. It will not erase your favorites. It will however, erase any corrupted satellite data and will default you back to some factory settings. This will clear some of the memory allowing your Nuvi to collect new satellite data. Your Nuvi should reboot and it will ask you a couple questions like, timezone, language. Please select the proper settings.

Make sure the antenna is up and that you are outside. On the main screen, you will see a satellite bar graph in the upper left-hand corner. Touch the bar graph and you should get a satellite map, showing the satellites. If your Nuvi's receiver is working ok, you should see horizontal hollow bar graphs appear on the right. Eventually they will turn solid blue. This indicates they have downloaded the proper data from the satellite. When you have (4) solid blue horizontal bars (4 satellites), you will see the top panel begin to show improved accuracy and your Nuvi will then work as it should. This entire process make take 30 minutes or less.

If you don't see any bar graphs, your Nuvi may ask you severl minutes later, if you are indoors. If your outside, select no. It will then ask you if you have moved 1000 miles since your last use. Select yes. This will cause your Nuvi to start looking for
satellites, trying to locate your new position.

Now, if you still don't see any bar graphs, then your antenna may have a problem. There is a known issue with the Nuvi antenna where a part has failed, causing the Nuvi to no longer use its internal antenna and it's now always looking for an antenna at the external antenna port (the gold connector on the side of the Nuvi antenna). If you have a piece of small wire, a couple feet long, you can insert that into the center lead of the external antenna jack. Most likely, you'll begin to see bar graphs after a few minutes and your Nuvi will lock.

I haven't been able to identify yet, which part has failed. I am working on that.
However, if the piece of wire works, you can always go on eBay or a retail store and
purchase an external antenna for your Nuvi. They are magnetic and can either stick to your roof or any metal surface within your vehicle.

Here's another way to determine if your antenna has failed and will have to be replaced:

At the main menu, pres on the "wrench" symbol. Then press the "gear" symbol and then press "about". There is a field marked "GPS S/W". There should be a number next to it. It may be "2.9" or "3.0". That is good. That tells you that the main board in the GPS is communcating with the antenna receiver. If you see "0.0" then your antenna is defective and there's no way to repair it other than replace it.

Please let me know if I can be of further assistance to you.

- Jim

Nov 06, 2008 | Garmin GPS Devices

1 Answer

Garmin GPSmap 76 locks up once satellite acquisition is complete.


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!!

Oct 13, 2008 | Garmin GPSMAP 76 GPS Receiver

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