Raymarine axiom pro 9 RVX Installation Instructions Manual page 262

No sonar source available
If the 'No sonar source available' warning is displayed then either:
• your sonar module is still powering up.
• your MFD cannot establish a connection with your external Sonar module
• your Internal Sonar module has no transducer connected.
Check your external sonar module's network and power connection, check your MFD's network or
transducer connection ensuring the connections and cabling is correct and free from damage,
then power cycle your system. If the Sonar module is still not found then refer to your equipment's
installation documentation for further troubleshooting information.
No transducer connected
If the 'No transducer connected' warning is displayed then your Sonar module cannot connect to
your transducer.
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