Furuno NAVNET 1724C - Manual (Page 222)

8. MAINTENANCE, TROUBLESHOOTING
8-13
Note: Though the message “SYSTEM HAS FAILED START UP TEST. PLEASE
CONTACT A LOCAL FURUNO REPRESENTATIVE FOR REPAIR. PUSH ANY KEY TO
CONTINUE” may appear when powering on the display unit immediately after the clearing
memories, there is no problem in fact. Press any key to continue the operation.
8.9 Error Messages
In addition to alarm messages your equipment also displays error messages.
Error messages
Error Message Meaning Remedy
General
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 position data
No position data is present. Check for obstacles around
GPS antenna.
No GPS fix!
Possible problem with FURUNO
BB GPS receiver.
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.