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5  SETTINGS & REGISTRATIONS  .................................  5-1 
5.1  Date and time setting  ..................................................................................................   5-1 
5.2 Own ship position and time setting ..............................................................................   5-3 
5.3  Settings for each controller  ..........................................................................................   5-4 
5.3.1 LCD adjustment ...................................................................................................   5-4 
5.3.2 Sound settings .....................................................................................................  5-4 
5.3.3 User key assignment ...........................................................................................   5-5 
5.3.4  Name a controller  ................................................................................................  5-6 
5.3.5 Disabling the hook switch  ....................................................................................   5-7 
5.4 Creating contact lists  ...................................................................................................   5-8 
5.5 Advanced settings for DSC  .........................................................................................   5-11 
5.5.1 Automatic acknowledgement ..............................................................................   5-11 
5.5.2  Disabling the automatic channel shift ..................................................................   5-11 
5.5.3 Disabling receiving alarms for routine and safety calls  .......................................   5-12 
5.5.4  Medical/Neutral use setting for urgency calls .....................................................   5-12 
5.5.5  Expanded MMSI registration  ...............................................................................  5-12 
5.6 Other settings ..............................................................................................................  5-13 
5.6.1 Enabling the AIS function  ....................................................................................  5-13 
5.6.2 Printer property ....................................................................................................   5-14 
6 MAINTENANCE & INSPECTION ................................ 6-1 
6.1 General maintenance & inspection .............................................................................   6-1 
6.2 Self diagnosis inspection  .............................................................................................  6-1 
6.3  System alarm indication ..............................................................................................   6-3 
6.3.1 Alarm list  ..............................................................................................................  6-4 
6.3.2  Viewing the alarm history ....................................................................................   6-5 
6.4 Checking the setup condition ......................................................................................   6-6 
6.4.1 System information  ..............................................................................................  6-6 
6.4.2 Software version ..................................................................................................   6-6 
6.5 Troubleshooting ...........................................................................................................  6-7 
6.5.1  Procedures for locating malfunctions ..................................................................   6-7 
6.5.2  Guide to locating faults ........................................................................................   6-8 
6.5.3 Repair units/parts ................................................................................................   6-9 
6.5.4 Regular replacement parts ..................................................................................   6-9 
7 AFTER-SALES SERVICE ........................................... 7-1 
8 DISPOSAL .................................................................. 8-1 
9 SPECIFICATIONS ....................................................... 9-1 
9.1 JHS-770S/780D Marine VHF radiotelephone .............................................................   9-1 
9.2 Channel assignment tables  .........................................................................................   9-4 
9.3 Options ........................................................................................................................  9-9 
9.4 Peripheral interfaces ...................................................................................................   9-10