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100 GPSMAP 188/188C Sounder Owner’s Manual
APPENDIX > INSTALLING AND REMOVING DATA CARDS
Installing and Removing Data Cards
The GPSMAP 188/188C Sounder uses optional Garmin marine
BlueChart and MapSource data cards to display digital charts and
maps on-screen. Data cards are installed in the card slot located at
the bottom right of the unit. Data cards can 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, with the label facing front and the handle
bottom, into the slot.
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-screen noting the card
details when the card is 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 Garmin Product Support or your Garmin
dealer for assistance. Data cards are not waterproof and should
not be exposed to moisture or excessive static charges. Data cards
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 at the bottom and pull down firmly.
3. If the unit is on, a confirmation tone sounds when the data
card is removed.
The first time you insert a data card, the unit takes a few seconds to
read the card.
After the data card is read, a summary screen appears. Press
ENTER to acknowledge.