Question about Hummingbird GPS Devices
SOURCE: Raymarine C120
You have either the DSM250 or DSM300 digital depth sounder module installed. The C80 is not seeing it.
There is an LED status light on the DSM. For starters, it should be lit either red, yellow or green to confirm it is actually powered on. We are hoping for a green light.
Double-check the cable between DSM and C80 for tightness. Also double-check the DSM's power cable for tightness.
The DSM's are sensitive to voltage level onboard. Make sure the DSM's connections to the circuit breaker panel or battery are tight and clean. Double check with a multimeter the there is 12V DC available to the DSM.
Let me know what you find.
Posted on Dec 28, 2007
SOURCE: 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.
Posted on Oct 06, 2008
People! The problem is that your software version needs updating. A recently added satellite creates a glitch in the older software. Go to the Garmin website, load WebUpdater if you haven't already done so, and the updated version (3.8) will automatically install to your Garmin unit. I had the same symptoms, they have now disappeared and my Etrex Vista is back to normal.
Posted on Oct 19, 2008
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