Question about Garmin Gsd 21 Sounder Blackbox Fishfinder Module
Posted by Anonymous on
1 turn off the simulator in the menu.
if that does not work
2. Check the connection to the transducer, if it is unhooked or corroded, clean and reattach the connector, the unit will stay in simulator mode if it does not detect a transducer attached to it
Posted on May 10, 2014
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Posted on Jan 02, 2017
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