9-2 
9 
9.1  Fault Finding
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Table 9-2: List of System Error Message 
 
Message  Class Description  ARL No. 
i
CPU High TEMP  Alarm CPU: High temperature.  952 
CURRENT (Data)  Alarm CURRENT: No communication or data error  119 
Date (Data)  Alarm Date data: No communication or data error.  112 
Datum (Data)  Alarm Datum data: No communication or data error.    122 
Depth (Data)  Alarm Water depth: No communication or data error.  115 
Disk1 Error  Alarm Hard disk 1 error.  957 
Disk2 Error  Alarm Hard disk 2 error.  958 
Fan (ATX PWR)  Alarm ATX power supply: Fan error.  954 
Fan (CPU)  Alarm CPU: Fan error.  951 
Fan (LCD)  Alarm LCD: Fan error.  955 
Fan (Main PWR)  Alarm Main power supply: Fan error.  953 
GYRO I/F (GYRO)  Alarm GYRO I/F: GYRO error.  110 
GYRO I/F (Log)  Alarm GYOR I/F: LOG error  111 
Heading (Data)  Alarm Heading data: No communication or data error.  113 
Keyboard (Data)  Alarm Keyboard: No communication or checksum error.  325 
NON-WGS84  Alarm Geodetic type of the GPS is not WGS-84.  104 
Position (Data)  Alarm
Latitude/longitude data: NO communication or 
data error. 
102 
PROC (AZI)  Alarm Process unit: AZI error.  305 
PROC (HL)  Alarm Process unit: HL error.  306 
PROC (INT)  Alarm Process unit: Interrupt error.  962 
PROC (Trigger)  Alarm Process unit: Trigger error.  304 
PROC (Heading)  Alarm Process unit Heading error.  964 
PROC (Video)  Alarm Process unit: Video error.  303 
Speed (2AXG)  Alarm
2-axis log (speed over ground): No communication 
or data error. 
114 
Speed (2AXW)  Alarm
2-axis log (speed over water): No communication 
or data error. 
114 
Speed (GPS)  Alarm GPS speed: No communication or data error.  114 
Speed (Log)  Alarm 1-axis log: No communication or data error.  114 
SRB (Data)  Alarm SRB: No communication or data error.  960 
RIB (Data)  Alarm RIB: No communication or data error.  961 
TEMP (Data)  Alarm TEMP data error  117 
TXRX (AZI)  Alarm Scanner: BP error.  311 
TXRX (Data)  Alarm
Scanner: No communication, communication 
mismatched, checksum error, or collision. 
326 
TXRX (Fan1)  Alarm Scanner: FAN 1 error.  320 
TXRX (Fan2)  Alarm Scanner: FAN 2 error.  320 
TXRX (Heater)  Alarm Scanner: Magnetron heater voltage error.  314 
TXRX (HL)  Alarm Scanner: HL error.  312 
TXRX (MHV)  Alarm Scanner: Modulator’s high voltage alarm.  315 
ASIC to Radar  Alarm  Interrupt error from ASIC to RADAR DSP  963 
TXRX (Reverse)  Alarm Scanner: Reverse rotation.  313 
TXRX (SSW Off)  Alarm Scanner: Safety switch OFF.  308 
TXRX (Trigger)  Alarm Scanner: Trigger error.  310 
TXRX (Video)  Alarm Scanner: Video error.  309 
WIND (Data)  Alarm No communication, direction, speed data error  118 
 
i. ALR No.: Unique alarm number in ALR sentence and ACK sentence