Operation Manual
- xix -
8.2 TROUBLESHOOTING ....................................................................8-13
8.3 COUNTERMEASURES TO TROUBLE ........................................8-14
8.4 REPLACEMNT OF MAJOR PARTS ..............................................8-20
■ Replacement of Magnetron (V1/V201) .....................................8-21
■ Replacement to TRHPL
(A202/A203)(JMA-9933-SA/9932-SA) .......................................8-21
■ Replacement of Diode Limiter(A203)
(JMA-9923-7XA/9XA, JMA-9922-6XA/9XA)................................8-20
■ Replacement of PIN Attenuator(A302)
(JMA-9923-7XA/9XA, JMA-9922-6XA/9XA)...............................8-21
■ Replacement of the Liquid-Crystal Monitor ............................8-22
8.5 ADJUSTMENT .................................................................................8-23
■ Tuning Adjustment ......................................................................8-24
■ Bearing Adjustment ....................................................................8-25
■ Range Adjustment .......................................................................8-26
■ Antenna Height Adjustment ......................................................8-27
■ Vector Constant ...........................................................................8-28
■ Quantization Level .......................................................................8-29
■ Adjustment of NSK Unit to Gyro Compass and Log .............8-30
■ Main Bang Suppression Adjustment .......................................8-32
8.6 SETTING ...........................................................................................8-34
■ True Bearing Setting ...................................................................8-34
■ Ship Speed Setting ......................................................................8-35
■ Navigation Equipment Setting ..................................................8-37
■ Current Correction(SET/DRIFT) Setting ...................................8-38
■ Time/Day Display Setting ...........................................................8-40
■ Adjustment of Performance Monitor(NJU-63/64) ...................8-42
■ Adjustment of Inter switch...........................................................8-44
9. AFTER-SALES SERVICE
■ When you Request for Repair ..................................................... 9-1
■ Recommended Maintenance ....................................................... 9-1
■ Radar Failure Check List .............................................................. 9-2










