9.2  Trouble Shooting
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Table 9-13    Circuit Block to be Repaired (JMA-5322-7/9/6HS) 
Location Circuit Block  Type  Remarks 
Scanner unit  Motor  7BDRD0044*  DC brushless motor (normal speed)
Scanner unit  Motor  7BDRD0045*  DC brushless motor (high speed) 
Scanner unit  Motor control power circuit CBD-1779   
Scanner unit  Encoder  CHT-71A   
Scanner unit  Brake circuit CFA-257  
Scanner unit  Fan (B201/B202)  7BFRD0002*   
Scanner unit  Performance Monitor  NJU-85   
Scanner unit  Modulator unit  NMA-550-1 
Including CPA-264 
Including CMB-404 
Including CFR-229 
Excluding Magnetron 
Scanner unit  Modulator circuit  CPA-264   
Scanner unit  Receiver unit  NRG-162A Including CMA-866A 
Scanner unit  T/R control circuit  CMC-1205R   
Scanner unit  Power supply circuit  CBD-1682A   
Process unit  Radar process circuit  CDC-1332   
Process unit  ARPA process circuit  NCA-877WA   
Process unit  ATA process circuit  NCA-877A   
Process unit  AIS process circuit  NQA-2103   
Process unit  GYRO interface circuit  CMJ-304E   
Process unit  Terminal board  CQD-1937A   
Process unit  I/F circuit  NQA-2123   
Process unit  Power supply circuit  NBD-818A   
Process unit  Fan  7BFRD0005*   
Operation unit  Operation circuit  CCK-979   
Operation unit  Interface circuit  CQC-1204   
Operation unit  Trackball  CCK-1000   
LCD Monitor  Bezel kit  MPBC43590*  for radar 
LCD Monitor  Brower circuit  CBP-173A   
LCD Monitor  Interface circuit  CMH-2227   
LCD Monitor  Inverter circuit  CBF-38   
LCD Monitor  Brilliance control circuit  CCK-989   
LCD Monitor  LCD Panel  CML-771   
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"*" means revision, such as A, B and so on. 
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