Maintenance & Inspection 
 
6-5
 
6.3.1. Alarm list 
The following list shows the types of system alarm and contents. 
(Alarm categories are CAUTION only.) 
No.  Display  Contents  Countermeasure 
001 TRX HIGH TEMP 
Detected a temperature in the main unit 
that is higher than the specified values. 
Stop transmission, or 
reduce the power to 1W 
002  TRX PLL UNLOCK 
Detected PLL Unlock in the transmitter 
or receiver. 
Please contact JRC or 
our agency. 
004  WKR PLL UNLOCK 
Detected PLL Unlock in the CH70 watch 
keeping receiver. 
Please contact JRC or 
our agency. 
005 TRX MEMORY 
Detected a memory error in the main 
unit. 
Please contact JRC or 
our agency. 
006  CTRL1 MEMORY  Detected a memory error in controller 1. 
Please contact JRC or 
our agency. 
007  CTRL2 MEMORY  Detected a memory error in controller 2. 
Please contact JRC or 
our agency. 
008  CTRL3 MEMORY  Detected a memory error in controller 3. 
Please contact JRC or 
our agency. 
009  CTRL4 MEMORY  Detected a memory error in controller 4. 
Please contact JRC or 
our agency. 
011 CTRL1 SIO 
Detected a serial communication error 
in controller 1. 
Please contact JRC or 
our agency. 
012 CTRL2 SIO 
Detected a serial communication error 
in controller 2. 
Please contact JRC or 
our agency. 
013 CTRL3 SIO 
Detected a serial communication error 
in controller 3. 
Please contact JRC or 
our agency. 
014 CTRL4 SIO 
Detected a serial communication error 
in controller 4. 
Please contact JRC or 
our agency. 
016  GPS SIO  Detected the GPS communication error. 
Please contact JRC or 
our agency. 
017  AIS SIO  Detected the AIS communication error. 
Please contact JRC or 
our agency. 
018  BAM SIO  Detected the BAM communication error. 
Please contact JRC or 
our agency. 
019  PRINTER  Detected an error in the printer. 
Check the printer power 
or the LAN. 
020 MMSI LOST 
The MMSI has not been registered yet, 
or has been lost. 
Please contact JRC or 
our agency. 
024  TRX PS (DC/DC)  Detected DC/DC power supply error. 
Please contact JRC or 
our agency. 
026  ABNORMAL RF POWER
Detected an error in the automatic 
power control (APC) or the peripherals. 
Please contact JRC or 
our agency. 
027 POWER-OFF FAIL 
Detected malfunction regarding power 
supply control circuit in the main unit. 
Turn off the external PS, 
and then please contact 
JRC or our agency. 
028  DMC SIO    Detected the DMC communication error. 
Please contact JRC or 
our agency. 
029  MFD SIO    Detected the MFD communication error. 
Please contact JRC or 
our agency.