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Author Topic:   Garmin 498 Owner needs help
tmccary posted 05-26-2007 10:48 PM ET (US)   Profile for tmccary   Send Email to tmccary  
I just purchased a Garmin 498. After following all of the installation instructions I am not able to display the pre-installed maps. The unit is able to find our lat/long, but the maps are not displayed. Anyone have any suggestions?
gorji posted 05-27-2007 07:18 AM ET (US)     Profile for gorji  Send Email to gorji     

Can you do a reset?
Were these maps with unlock codes?

whalerron posted 05-27-2007 10:22 PM ET (US)     Profile for whalerron  Send Email to whalerron     
What does the map display show you? Are you seeing only a light brown screen?
Landlocked posted 05-28-2007 08:19 AM ET (US)     Profile for Landlocked  Send Email to Landlocked     
Check to see if you are zoomed in too tight to see any detail. You also might check your map detail/option settings and see where they are at. I keep mine set to high.
Henry posted 05-28-2007 11:26 AM ET (US)     Profile for Henry  Send Email to Henry     
I was reading the manual on my friend's 498, and it said that if you try to install a MapSource card or chip in the unit you will delete all the original pre installed data. Are you sure that someone hasn't done that?
bluewaterpirate posted 05-28-2007 11:58 AM ET (US)     Profile for bluewaterpirate  Send Email to bluewaterpirate     
Henry .....

The 492/498 series accepts other G2 Chart or data cartridges without damage to the pre-installed G2 Chart Base Maps. Use them all the time with customer installs to show them how the unit works. From the units manual. 17835661/file.jpg 17835659/file.jpg


Henry posted 05-29-2007 05:14 PM ET (US)     Profile for Henry  Send Email to Henry     
Tom :

I hear what you say but the Garmin BlueChart g2 Marine Cartography User's Guide states at page three as follows:

Do NOT use preprogrammed Blue Chart g2 data cards for saving mapsource maps. The preprogrammed data will be lost. Remove any BlueChart g2 cards in your Garmin unit before transferring MapSource maps to the unit to avoid losing the preprogrammed data.

Maybe I misunderstood and this means that preprogrammed data on the data card will be lost not the preprogrammed data in the unit.

bluewaterpirate posted 05-29-2007 06:05 PM ET (US)     Profile for bluewaterpirate  Send Email to bluewaterpirate     
That means don't save any data to the preprogrammed G2 chart card that you inserted into the 498 such as your waypoints, tracks, and routes because that data will be written over the data on the preprgramed G2 card you.

Has nothing to do with the internal preprogramed G2 charts that come installed on the 498.


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