Forum: Gear & Maintenance
08-17-2010
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Replies: 6
Views: 3,751
Raytheon Chartplotter 420 - No FIX
I had this problem and fixed it by replacing the small 'watch' battery (CR2032) in the unit.
Remove the two screws to remove the threaded base. Remove the six small screws and pry the unit apart....
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