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8. MAINTENANCE, TROUBLESHOOTING
8-14
8.11 Error Messages
In addition to alarm messages your equipment also displays error messages.
Error messages
Error Message Meaning Remedy
General
Connection with the control
unit was cut
Control unit disconnected
• Check the cable between
the processor unit and
control unit.
Connection with the ETR was
cut.
Network sounder disconnected.
• Check that processor unit
where the sounder is
connected is turned on.
• Check network sounder’s
cabling.
Connection with the RADAR
was cut.
Radar disconnected.
• Check that processor unit
where the radar is
connected is turned on.
• Check antenna cable.
Low Voltage! Internal Battery
Voltage of battery on circuit
board in processor 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.
GPS navigator is turned off or
no GPS position data.
There may be obstacles
around GPS antenna.
No GPS fix!
Possible trouble with
GP-310B/320B.
Disconnect GPS cable from
the processor unit, and then
contact your dealer.
No heading pulse detected. Check heading sensor.
HEADING DATA MISSING!
No heading pulse
Check heading cable.