Raytheon NSC 18 User Manual page 79

be shown in RED text strings on a WHITE flashing background.
Alarms that have been acknowledged will be shown as RED text string preceded
with a number.
The Alarm Acknowledge button on the control panel is used to acknowledge the
oldest active unacknowledged alarm. Once the alarm is acknowledged, the text
string will become RED, a number will appear at the beginning of the alarm text
string, and if needed the list will be automatically scrolled down in order to see
any other unacknowledged alarms in the list that are not currently
The following ALARM table shows all possible alarm indications and first
proposal how to handle an ALARM message.
SLOW ANTENNA
XCVR HIGH TEMP
GYRO OUT
(HW GYRO OUT ALARM)
hw hardware
ANTENNA STOPPED
Edition: 14.JAN.2005
NSC 18
RADAR
Operator Manual
ALARM MESSAGE a.) Problem Description
b.) Corrective Action
a. A signal from transceiver/Adaptive
Interface which indicates the antenna
is not rotating at the correct RPM
b. Refer to the maintenance section for
troubleshooting and repair
a. A signal has been received from the
transceiver indicating that excessive
temperatures are occurring
b. Refer to the maintenance section for
troubleshooting and repair
a. Gyro compass has become inopera−
tive. Indicates that an invalid signal
has been received
b. Refer to the maintenance section for
troubleshooting and repair
a. A signal from the transceiver/Adapter
Interface which indicates that the
antenna is not rotating
b. Refer to the maintenance section for
troubleshooting and repair
2−61
R
Raytheon Marine GmbH
Germany
displayed.
3748DOC020102