Question about Garmin GPSMAP 4208 GPS Receiver
Same problem here. The 4208 appears to have an over-heating issue that turns off the NMEA 2000 network which contains the GPS 17 antenna. Cooling the heat fins on the back of the unit turns the network back on, suggesting a design flaw.
The question now is to determine WHY the unit over-heats.
Posted on Jan 06, 2010
Make sure all three T-connectors are connected and that you connect the YELLOW cable to the last one. This yellow cable will need to be connected to power. Then you will get GPS link up.
Posted on Jul 30, 2008
Tips for a great answer:
Jul 17, 2014 | Garmin GPSMAP 4208 GPS Receiver
Slide the power button to the left and hold in this position for 8 seconds. Push the switch to the right to power the GPS back on.
Turn the unit off. Press and hold the bottom right of the GPS screen. Continue to hold while powering on the GPS. you should now have a prompt asking you to erase all data. Select Yes. Afterwards, it is recommended that you leave the GPS outside somewhere safe to acquire a GPS signal. Once this is done, you can update the GPS using the update steps described at the beginning of this article.
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