Furuno 1834C-BB User Manual

8. MAINTENANCE, TROUBLESHOOTING 

In addition to alarm messages your equipment also displays error messages.   

 

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.