Nodepthreading/lostbottomlock:
P
ossiblecausesPossiblesolutions
T
ransducerlocation
Checkthatthetransducerhasbeeninstalledin
accordancewiththeinstructionsprovidedwiththe
transducer.
T
ransducerangle
Ifthetransducerangleistoogreatthebeamcan
missthebottom,adjusttransducerangleand
recheck.
Transducer
kicked-up
Ifthetransducerhasakick-upmechanism,check
thatithasnotkickedupduetohittinganobject.
P owersource
insufficient
Withtheproductunderload,usingamulti-meter,
checkthepowersupplyvoltageasclosetotheunit
aspossibletoestablishactualvoltagewhenthe
currentisflowing.(Checkyourproduct’sTechnical
specificationforpowersupplyrequirements.)
Damagedorfouled
transducer
Checktheconditionofthetransducerensuringitis
notdamagedandisfreefromdebris/fouling.
P
ossiblecausesPossiblesolutions
Damagedcables
1.Checktheunit’
sconnectorforbrokenorbent
pins.
2.Checkthatthecableconnectorisfullyinserted
intotheunitandthatthelockingcollarisinthe
lockedposition.
3.Checkthecableandconnectorsforsignsof
damageorcorrosion,replaceifnecessary.
4.Withtheunitturnedon,tryflexingthepower
cableneartothedisplayconnectortoseeifthis
causestheunittore-boot/loosepower,replace
ifnecessary.
5.Checkthevessel’sbatteryvoltage,the
conditionofthebatteryterminalsandpower
supplycables,ensuringconnectionsare
secure,cleanandfreefromcorrosion,replace
ifnecessary.
6.Withtheproductunderload,usinga
multi-meter,checkforhighvoltagedropacross
allconnectors/fusesetc(thiscancausethe
Sonarapplicationstostopscrollingortheunit
toreset/turnoff),replaceifnecessary.
Vesselspeedtoo
high
Slowvesselspeedandrecheck.
Bottomtooshallow
ortoodeep
Thebottomdepthmaybeoutsideofthetransducers
depthrange
,movevesseltoshallowerordeeper
watersasrelevantandrecheck.
Poor/problematicimage
PossiblecausesPossiblesolutions
Vesselstationary
Fisharchesarenotdisplayedifthevesselis
stationary;fishwillappearonthedisplayasstraight
lines.
Scrollingpausedor
speedsettoolow
Unpauseorincreasesonarscrollingspeed.
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