
SimradSH90
’Mainswitch’eld
TheMainswitchbuttonscontrolsthepoweron/offsequenceand
thehoistingandloweringofthetransducer.Italsoindicatesthe
transducer’scurrentposition.
Middle
Up
Down
MAINSW.
POWER
Power
Thisisthesonar’s“on/off”switch.
•PushingPowerforapproximatelytwosecondspowersupthe
sonar.TheadjacentgreenLEDblinkswhiletheProcessor
Unitbootsup,andremainsilluminatedoncethesystemis
operational.
•Beforethesonarcanbepowereddown,thetransducermust
beintheupperposition.PushingthePowerbuttonfor
approximatelytwosecondssecurespowertotheunitwhichis
conrmedbytheadjacentgreenLEDbeingextinguished.
Up
Thisbuttonraisesthetransducertoitsupperposition.The
adjacentgreenLEDblinkswhilethetransducerisraisedand
remainsilluminatedonceitishousedsafelyinsidethehullofthe
vessel.ThegreenblinkingLEDwillalsobeaccompaniedby
anaudiblesignal.
Middle
TheMiddlebuttonraisesorlowersthetransducertoitsmiddle
position.Thephysicallocationofthemiddlepositioncanbe
denedintheTransducerparameterdialog.
Down
TheDownbuttonlowersthetransducertoitslowerposition.The
adjacentgreenLEDblinkswhilethetransducerisloweredand
remainsilluminatedwhenlowerpositionisreached.Thegreen
blinkingLEDwillalsobeaccompaniedbyanaudiblesignal.
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323775/B
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