JRC JMA-5212-4 - Circuit Block to be Repaired

9.2 TROUBLE SHOOTING
9ņ10
9
y
yyyy
yyyy
9.2.3 Circuit Block to be Repaired
Table 9-9 Circuit Block to be Repaired (JMA-5204)
Location Circuit Block Type Remarks
Scanner Motor 7BDRD0052*
Scanner Compound Modulator Circuit CME-385
Scanner Receiver Unit NRG-239 Including CAE-548
Processor Radar processing circuit CDC-1350
Processor DSP circuit (TT) NCA-877A
Processor Power supply terminal circuit unit NBD-866A
Processor AIS processing circuit NQA-2155
Operation panel unit Operation circuit CCK-979
Operation panel unit PS2 connector circuit CQC-1204
Display Brilliance control circuit CCK-970 Brilliance controller
NSK unit Gyro IF circuit CMJ-304E
"*" means revision, such as A, B and so on
Table 9-10 Circuit Block to be Repaired (JMA-5208)
Location Circuit Block Type Remarks
Scanner Motor with gear CBP-153 DC brush motor (ordinary)
Scanner Modulator CME-323 Excluding Magnetron
Scanner Receiver NRG-226 Including CAE-475-1
Processor Radar processing circuit CDC-1350
Processor DSP circuit (TT) NCA-877A
Processor Power supply terminal circuit unit NBD-866A
Processor AIS processing circuit NQA-2155
Operation panel unit Operation circuit CCK-979
Operation panel unit PS2 connector circuit CQC-1204
Display Brilliance control circuit CCK-970 Brilliance controller
NSK unit Gyro IF circuit CMJ-304E