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5. MAINTENANCE, TROUBLESHOOTING
5-5
5.3.5 NMEA0183 test
This test checks for correct input and output of NMEA 0183 data from PORT1 and
PORT2. Open the diagnostic test options window, select [NMEA0183 TEST] then
push the Course control knob.
To close the test result, press the key.
Test result items of the NMEA0183 test
• [RORT1]/[PORT2]: Test result of the communication with NMEA0183 equipment
("OK" or “NG”). "- -" appears when there is no NMEA0183 equipment connection.
5.3.6 CAN bus test
This test checks the CAN bus network. Open the diagnostic test options window, se-
lect [CAN Bus Test] then push the Course control knob.
To close the test result, press the key.
Test result item of the CAN bus test
• [CAN Bus]: Test result of the communication with CAN bus network "OK" or “NG”).
"- -" appears when there is no CAN bus network connection.
NMEA0183 Test
PORT1: OK
PORT2: OK
CAN Bus Test
CAN Bus: OK