Diagnostic Test - Furuno FM-8500 Operator's Manual

8.3 Diagnostic Test

Procedure
Watch VHF CH70
auto
* Text in progress *
please wait!
* Completed * Daily test
VHF DSC: GOOD
Distress alarm sounds and red LED near the [DISTRESS] key lights.
Press [ALARM STOP] to silence the aural alarm.
For "NG" (No Good), press the [ENT] key to find reason for NG.
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8-2
Regulations require that the DSC section be checked daily for proper
operation.
Select a channel not in use and press and hold down the PTT switch
of the handset for more than one second before starting self test.
Press the [3 (TEST)] key.
Several seconds later
Normal display
Appears during testing
End diagnostic test
When you didn't press the PTT switch
before diagnostic test, "except VSWR"
is displayed.
For "GOOD', press [CANCEL] key
to return to the normal dispay.