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6.5 GPS Antenna
6.6 Pilot Plug
71
7 TROUBLESHOOTING
Use the following guide to perform simple troubleshooting in case the transponder is not function
accordingly.
Symptom
Possible Cause
Solution
Transponder cannot power
on
Faulty connector to power
Polarity reverse
Power supply current too
low
Check power connection
Check power connection
Check power supply
No picture on display
Unit not powered up
Dimmer level set too low
Press power key
Increase Dimmer level
No map detail
Coastline detail not active
Switch to coastline view
No GPS position data
Antenna or cabling problem Check antenna cable and
connections
No AIS transmission
MMSI not entered
Transmitter disabled
Power supply voltage too
low
Enter MMSI number
Enable transmitter
Check power supply
No AIS target
VHF cabling problem
Check antenna cable and
connections
AIS range seems too low
VHF antenna and cabling
Check VHF antenna and
cable installation
Sensor ports not response
Cable installation
Check related wiring
Data port not response
Cable installation
Check related wiring