Diagnostic Test - Furuno FM-4800 Operator's Manual

After you view the information, press the Menu/DSC control to return to
Step 3
the previous screen.
10.6.3

Diagnostic Test

This feature allows you to test items as shown in the following table. You can also
see explanations of testing results in the following table.
Testing Item
GNSS
DSC
BATTERY
AIS
MEMORY
REMOTE STATION
Explanation of Testing Result
OK: There is a GNSS data source.
NG: There is no GNSS data source.
OK: The DSC feature works normally.
NG: The DSC feature doesn't work.
OK: The operating voltage is between 10.8 V DC and
15.6 V DC.
LOW: The operating voltage is lower than 10.8 V DC.
HIGH: The operating voltage is higher than 15.6 V DC.
OK: The AIS feature works normally.
NG: The AIS feature doesn't work.
OK: The internal memory is normal.
NG: The internal memory is abnormal.
OK: Handset is connected to the radio.
NG: No handset is connected to the radio.
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