Furuno 1724C 사용자 설명서

8. MAINTENANCE, TROUBLESHOOTING 

 
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. 
 

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

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.