Question about Garmin GPSMAP 76 GPS Receiver
While moose hunting I had my GPS on for about 45 minutes and the screen went blank. I tried to turn it back on and nothing happened, I replaced the batteries with new Rayovac batteries and it turned on and went blank again in less than one minute. I replaced the batteries again with new Energiser batteries and it worked fine again with no more problems for the rest of the week long hunt. After returning home from the hunt I turned the GPS on in my yard and the "distance to the nearest waypoint" reading (home) kept jumping from 27 metres to 289 metres, the sceen shifted side to side a couple of times also. Are these problems related? Was the first problem battery related ? Was the problem at home satalite related? Thanks for the help, Hotch.
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
- 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.
Search for: "How do I reset my gpsmap 76"
Posted on Oct 06, 2008
It looks like a software upgrade did the trick in my case. I upgraded from OS 3.8 to 4.0 and the last time I had my boat out the GPSMAP 76 worked just fine.
Posted on Oct 07, 2008
Its normal for position to shift but not that much. Try again and look at the sat status screen to see how many satelites you pick up and how strong signal is.
It's most likely that software failure caused GPS to chew up the batteries. The GPS uses a lot energy while acquiring.
If your software is less than v4.00 then download this update:
GPSMAP 76 Ver. 4.00 as of Nov 29, 2006
If that doesn't work it may be necessary to do a master reset.
Posted on Oct 26, 2007
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