Furuno NAVNET 1833 - Manual (Page 225)

7. MAINTENANCE, TROUBLESHOOTING
7-13
7.9 Error Messages
In addition to alarm messages your equipment also displays error messages to
alert you to .
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. There may be obstacles
around GPS antenna.
No position data. An error occurs on
GP-310B/320B. Disconnect GPS cable from
the display unit, and then
contact your dealer.
No heading pulse detected. Check heading sensor.
Heading data missing!
No heading pulse
Check heading cable.