Simrad ST90 - Page 295

442703/B
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5[Bridge]SetModetoBowUp.
6[Bridge]Start"pinging".
a[Bridge]SetTxPowertoLow.
b[Bridge]V erifythatechoesappearontheST90presentation.
cMakesurethatallthe12transceiverboardsarefullyfunctional.
EachtransceiverboardisttedwithseveralLEDindicators.Toverifynormal
operation,checktheLEDactivityonalltransceiverboardssimultaneously.
Duringnormaloperation,theywillbehavenearlyidentical.IftheLEDson
oneboardactsuspiciousrelatedtotheotherboards,youmayhaveanerror.
dIfpossible,verifythatyoucanhearthesoundofthetransmitpulsefromthe
transducer.
e[Bridge]SetTxPowertoMedium.
f[Bridge]V erifythatechoesontheST90presentationappearstronger.
gIfpossible,verifythatthesoundofthetransmitpulseislouder.
h[Bridge]SetTxPowertoMaximum.
i[Bridge]V erifythatechoesontheST90presentationappearevenstronger.
jIfpossible,verifythatthesoundofthetransmitpulseisevenlouder.
7[Bridge]SetTXPowertoOff.
8[Bridge]OntheOperatingPanel,pressUp.
9Whenthetransducershaftstops,makesurethishappensatthecorrectmiddle
position.
10[Bridge]Notifythesonarroomthatthetestisnished.
11ClosethedoorontheTransceiverUnit.
aPlacethedooronitsframe.
bTightenthefourboltsthatsecurethedoor.
12ClosethedoorontheMotorControlUnit.Useaspannertosecureit.
Relatedtopics
Settingtoworksummary,page242
TurningontheST90forthersttime,page276
Settingtowork