Furuno DS-50 Operator's Manual page 13

Control description
Main controls
MODE selector Selects tracking mode among ground, water and automatic. Each time the key is
pressed the tracking mode changes in the sequence of ground, water and
automatic. Current tracking mode is denoted by the tracking mode lamps.
Distance/Keel Displays distance run or depth below keel at each pressing.
Clearance selector "Distance" or "Keel Clearance" lights to show current selection.
DIMMER controls Adjust panel brilliance.
Controls in compartment
kn/ m/s selector
SET key
Arrow keys
POWER switch
SET
kn / m/s
Selects the unit of speed measurement; knots or meters/second.
Sets distance run display.
Set the distance run indication.
Turns power on and off.
Distance Set
POWER
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