7.3.4 Adjustment of Performance Monitor ...........................................7-37
7.4 MAINTENANCE MENU ........................................................................7-39
7.4.1 Antenna Safety Switch (Safety Switch) .......................................7-39
7.4.2 Initialization of Memory Area(Area Initial) ...................................7-40
7.4.3 Save of Internal Memory Data (Card1/2) .....................................7-41
7.4.4 Restoration of Scanner Unit Operation Time (TXRX Time) ......7-42
7.4.5 Update of Character String Data (String Data Update) .............7-44
SECTION 8
COUNTERMEASURES FOR TROUBLE AND ADJUSTMENT
8.1 ROUTINE MAINTENANCE ....................................................................8-1
8.2 MAINTENANCE ON EACH UNIT ...........................................................8-2
8.2.1 Scanner Unit NKE-1125/1129/1130/1139/2103/2254 ....................8-2
8.2.2 Flexible wave guide (JMA-9123-7XA/9XA) ....................................8-4
8.2.3 Coaxial Cable (JMA-9133-SA) ........................................................8-4
8.2.4 Transmitter Receiver Unit (NTG-3225/3230) ................................8-5
8.2.5 Display Unit (NCD-4990) ................................................................8-5
8.3 PERFORMANCE CHECK ......................................................................8-6
8.3.1 Check Performance on Test Menu ...............................................8-7
8.4 REPLACEMENT OF MAJOR PARTS ..................................................8-13
8.4.1 Parts Required for Periodic Replacement ..................................8-14
8.4.2 Replacement of magnetron ..........................................................8-14
8.4.3 Replacement of Motor ...................................................................8-29
8.4.4 Replacement of 23inch LCD CML-799 .........................................8-34
8.4.5 Replacement of Backup Battery ..................................................8-37
SECTION 9
TROUBLE SHOOTING 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 ........................................................................9-6
9.1.3 Fuse Checking .................................................................................9-6
9.2 TROUBLE SHOOTING ...........................................................................9-7
9.2.1 Special Parts ....................................................................................9-7
9.2.2 Circuit Block to be Repaired ..........................................................9-9
9.3 AFTER-SALES SERVICE ....................................................................9-15
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