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7. MAINTENANCE, TROUBLESHOOTING
7-14
7.8 Error Messages
In addition to alarm message your equipment also displays equipment status
menus.
Equipment status error messages
Error Message Meaning Remedy
Connection with the ETR was
cut.
Network sounder disconnected.
•
Check that display unit where the
sounder is connected is turned
on.
• Check network sounder’s
cabling.
Connection with the RADAR
was cut.
Radar disconnected.
•
Check that display unit where the
radar is connected is turned on.
• Check antenna cable.
Low Voltage! Internal Battery Voltage of battery on circuit
board in display unit is low.
Have a qualified technician
replace the battery.
No bearing pulse detected. No bearing pulse from radar
antenna.
Check antenna cable.
No GPS fix! GPS navigator is turned off or
no GPS position data.
Check GPS navigator.
Heading data missing!
Check heading connector.
No heading pulse detected.
No heading pulse
Check heading sensor.
No GPS position! An error may occur on
GP-310B/320B.
Disconnect GPS cable from
the display unit, and contact
with your dealer.