Raymarine E70293 - Sonar; Downvision Troubleshooting

13.4Sonar/DownVisiontroubleshooting
ProblemswiththeSonarorDownVisionandtheirpossiblecausesandsolutionsaredescribedhere.
Scrollingimageisnotbeingdisplayed
PossiblecausesPossiblesolutions
SonardisabledSelectEnableSonarfromtheShortcutspage.
Damagedcables
1.Checktheunit’sconnectorforbrokenorbentpins.
2.Checkthatthecableconnectorisfullyinsertedintotheunitandthatthe
lockingcollarisinthelockedposition.
3.Checkthepowersupplycableandconnectorsforsignsofdamageor
corrosion,replaceifnecessary.
4.Withtheunitturnedon,tryexingthepowercableneartothedisplay
connectortoseeifthiscausestheunittore-boot/loosepower,replace
ifnecessary.
5.Checkthevessel’sbatteryvoltage,theconditionofthebatteryterminals
andpowersupplycables,ensuringconnectionsaresecure,cleanandfree
fromcorrosion,replaceifnecessary.
6.Withtheproductunderload,usingamulti-meter,checkforhighvoltagedrop
acrossallconnectors/fusesetc(thiscancausetheFishnderapplicationsto
stopscrollingortheunittoreset/turnoff),replaceifnecessary.
DamagedorfouledtransducerChecktheconditionofthetransducerensuringitisnotdamagedandisfreefrom
debris/fouling,cleanorreplaceasnecessary.
WrongtransducerttedTheCPT-DVtransducerisaDownVision
™
onlytransducer,youcannotusethe
SonarapplicationwithaCPT-DVtransducerconnected.IfyouhaveaDVS
orProvariantdisplayensureyouareusingadualelementtransducersuch
astheCPT-DVS.
Referto3.5DownVision
™
transducercompatibilityfortransducercompatibility.
Nodepthreading/lostbottomlock
PossiblecausesPossiblesolutions
Transducerlocation
Checkthatthetransducerhasbeeninstalledinaccordancewiththetransducer
locationrequirements(referto3.10Selectingalocationforthetransducerof
themanualfordetails).
Transducerangle
Ifthetransducerangleistoogreatthebeamcanmissthebottom,adjust
transducerangleandrecheck.
Transducerkicked-up
Checkthatthetransducerhasn'tkickedupduetohittinganobject.
Powersourceinsufcient
Withtheproductunderload,usingamulti-meter,checkthepowersupply
voltageasclosetotheunitaspossibletoestablishactualvoltagewhenthe
currentisowing.(RefertoChapter15Technicalspecicationforpowersupply
requirements.)
DamagedorfouledtransducerChecktheconditionofthetransducerensuringitisnotdamagedandisfree
fromdebris/fouling.
Damagedcables
1.Checktheunit’sconnectorforbrokenorbentpins.
2.Checkthatthecableconnectorisfullyinsertedintotheunitandthatthe
lockingcollarisinthelockedposition.
3.Checkthepowersupplycableandconnectorsforsignsofdamageor
corrosion,replaceifnecessary.
4.Withtheunitturnedon,tryexingthepowercableneartothedisplay
connectortoseeifthiscausestheunittore-boot/loosepower,replace
ifnecessary.
5.Checkthevessel’sbatteryvoltage,theconditionofthebatteryterminals
andpowersupplycables,ensuringconnectionsaresecure,cleanandfree
fromcorrosion,replaceifnecessary.
Troubleshooting
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