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101
Appendix A
Installing and Removing
Data Cards
Once the data card has
been read, a summary
screen appears. Press
ENTER to acknowledge.
Installing and Removing Data Cards
The GPSMAP 178/178C uses optional Garmin marine BlueChart and MapSource data cards to
display digital charts and maps on-screen. You may also transfer user data to data cards (pg 82). Data
cards are installed in the card slot located at the bottom right of the unit. Data cards may be installed or
removed at any time, whether the unit is on or off.
To install a data card:
1. Open the card door by pressing together on the two handles at the bottom of the door and lifting it
up and open.
2. Insert the card into the slot, with the label facing top and the handle towards you.
3. Firmly push the card into the unit. It in not necessary to force the card and about 1/2” is still exposed
when it is properly inserted. If the unit is on, a confirmation tone sounds and a message displays on
the screen noting the card details when the card has been properly installed and accepted.
4. Close the cover.
If you insert a data card and get a ‘card format not recognized’ message, try removing the card and
reinserting it. If the card is still not recognized, contact the Garmin or your Garmin dealer for assistance.
Data cards are not waterproof, should not be exposed to moisture or excessive static charges, and should
be stored in the case supplied with the card.
To remove a data card:
1. Open the card door by pressing together on the two handles at the bottom of the door and lifting it
up and open.
2. Grasp the card handle and pull out firmly.
3. If the unit is on, a confirmation tone sounds when the data card has been removed.
The first time you insert a
data card, the unit takes
a few seconds to read the
card.