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7.5.3 Save of Internal Memory Data (Card2) ............................................. 7-54

7.5.4 Update of Character String Data (String Data Update) ..................... 7-56

7.5.5 Clear of Antenna Operation Time (TXRX Time CLR) ........................ 7-57

7.5.6 Update of AIS Processor Program (AIS PROC Program Update) .... 7-61

8. MAINTENANCE AND INSPECTION

8.1 ROUTINE MAINTENANCE..................................................................... 8-1

8.2 MAINTENANCE ON EACH UNIT ........................................................... 8-2

8.2.1 Scanner Unit NKE-2103/2254............................................................. 8-2

8.2.2 Display Unit NCD-4380....................................................................... 8-5

8.3 PERFORMANCE CHECK ...................................................................... 8-6

8.3.1 TEST MENU ....................................................................................... 8-7

8.3.1.1 Self-diagnosis function................................................................ 8-8

8.3.1.2 Monitor Test .............................................................................. 8-10

8.3.1.3 Operation Panel Test .................................................................8-11

8.3.1.4 MON Display............................................................................. 8-13

8.3.1.5 Alarm Logging........................................................................... 8-14

8.3.1.6 System INFO ............................................................................ 8-17

8.3.1.7 MAGI ........................................................................................ 8-18

8.3.2 Line Monitor ...................................................................................... 8-19

8.3.3 GPS Reception Status Display (GPS Status).................................... 8-21

8.4 REPLACEMENT OF MAJOR PARTS................................................... 8-23

8.4.1 Parts Required for Periodic Replacement......................................... 8-25

8.4.2 Replacement of magnetron............................................................... 8-25

8.4.3 Motor Replacement........................................................................... 8-31

8.4.4 Replacement of Diode Limiter (A303) (JMA-5212-4/6, 5222-7/9) ..... 8-37

8.4.5 Replacement of Backup Battery ..................................................... 8-38

9. TROUBLESHOOTING AND AFTER-SALES SERVICE

9.1 FAULT FINDING ..................................................................................... 9-1

9.1.1 List of Alarms and other Indications .................................................... 9-1

9.1.2 Operation Checking ............................................................................ 9-4

9.1.3 Fuse Checking .................................................................................... 9-4

9.2 TROUBLE SHOOTING........................................................................... 9-5

9.2.1 Spares................................................................................................. 9-6

9.2.2 Special Parts....................................................................................... 9-8

9.2.3 Circuit Block to be Repaired................................................................ 9-8

JRC JMA-5212-4/6 User Manual

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