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Chapter 10    MAINTENANCE AND CHECK 
Alarm Code 
*Screen notation 
Alarm Name  Class  Description 
D031 AIS(Time Out) 
Alarm 
For AIS function=ON, cannot receive valid AIS data 
(including checksum error) which had been received 
properly. 
D032 AIS(Data) 
Alarm 
For AIS function=ON, cannot receive valid AIS data which 
had been received properly. 
D033 AIS(Alarm001) 
Alarm 
For AIS function=ON, an error from the AIS receiver is 
received(ALR). 
D034 AIS(Alarm002) 
Alarm 
For AIS function=ON, an error from the AIS receiver is 
received(ALR). 
D035 AIS(Alarm003) 
Alarm 
For AIS function=ON, an error from the AIS receiver is 
received(ALR). 
D036 AIS(Alarm004) 
Alarm 
For AIS function=ON, an error from the AIS receiver is 
received(ALR). 
D037 AIS(Alarm005) 
Alarm 
For AIS function=ON, an error from the AIS receiver is 
received(ALR). 
D038 AIS(Alarm006) 
Alarm 
For AIS function=ON, an error from the AIS receiver is 
received(ALR). 
D039 AIS(Alarm008) 
Alarm 
For AIS function=ON, an error from the AIS receiver is 
received(ALR). 
D040 AIS(Alarm025) 
Alarm 
For AIS function=ON, an error from the AIS receiver is 
received(ALR). 
D041 AIS(Alarm026) 
Alarm 
For AIS function=ON, an error from the AIS receiver is 
received(ALR). 
D042 AIS(Alarm029) 
Alarm 
For AIS function=ON, an error from the AIS receiver is 
received(ALR). 
D043 AIS(Alarm030) 
Alarm 
For AIS function=ON, an error from the AIS receiver is 
received(ALR). 
D044 AIS(Alarm032) 
Alarm 
For AIS function=ON, an error from the AIS receiver is 
received(ALR). 
D045 AIS(Alarm035) 
Alarm 
For AIS function=ON, an error from the AIS receiver is 
received(ALR). 
D046 Set Gyro 
Status 
Requires setting of true bearing. 
D047 DSP(Video) 
Alarm 
DSP detects VIDEO error. 
D048 DSP(Trigger) 
Alarm 
DSP cannot receive TI interrupt. 
D049 DSP(AZI) 
Alarm 
DSP cannot receive BP interrupt. 
D050 DSP(HL) 
Alarm 
DSP cannot receive BZ interrupt. 
D051 DSP Error 
Alarm 
Abnormal operation(infinite loop) of DSP. 
D052  LAT(Out of Bounds) 
Caution 
The own ship’s latitude is 80 degrees or more (indicating 
that some functions are limited). Display   
AIS, waypoint, mark/line, own ship trail, etc. for 80 
degrees or more.   
Input operations for 80 degrees or more   
( refer to “High Latitude “alarm) 
D053  TT(Out of Range) 
Alarm 
TT is too far to be tracked. 
D055 Flash ROM Error 
Alarm 
Initialization error of flash ROM file system during startup. 
D056 USB Error 
Alarm 
Initialization error of USB during startup. 
D057 SD Error 
Alarm 
Chart SD card reading error.