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3. MAINTENANCE, TROUBLESHOOTING
3-8
3.5 Alarm Status
The alarm sounds for equipment error and is accompanied by a flashing popup
indication. Press any key to silence the alarm and erase the popup. To see
which alarm(s) has been violated, display the ALARM STATUS log as shown
below.
1. At the plotter display, press the DISP key four times to show the ALARM
STATUS display.
[ALARM STATUS]
EPFS 7/MAY 4:32:16
L/L 7/MAY 4:02:01
SOG 7/MAY 2:34:54
COG 6/MAY 7:09:32
HDG 3/MAY 8:00:21
ROT 19/APR 9:05:22
Alarm name,
date and time
of alarm
2. Use ▼ or ▲ to scroll the log.
Alarm statuses and their meanings
Alarm Status
Indication
Meaning
ANT Antenna VSWR trouble. Continued operation possible.
CH1 TDMA RX1 Board trouble. TX stopped on corresponding TX
channel.
CH2 TDMA RX2 Board trouble. TX stopped on corresponding TX
channel.
CH70 DSC RX Board trouble, transmission stopped on CH70.
COG Invalid COG data
EPFS No data from external navigator. Continued operation
possible.
FAIL General system failure
HDG Invalid/nonexistent HDG data
L/L No L/L data
MKD Minimum input device failure
ROT Invalid ROT data
SOG Invalid SOG data
TX TX malfunction