20-3  Section 20    Failures and After-Sale Services 
 
 
 
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20.2  Countermeasures for Failures 
 
20.2.1  Repair circuit block 
Repair Circuit Block (JAN-9201) 
 
Location  Circuit Block Name  Model Name  Remarks 
Display unit    Display unit  NWZ-208   
Display unit 
FAN kit for changing the 26inch 
MNU 
7ZYNA4005   
Trackball operation unit  Trackball unit  CCK-1060   
Trackball operation unit  Operation circuit A  CCK-1050   
Trackball operation unit  Operation circuit SW  CCK-1069   
Trackball operation unit  Operation circuit CN  CCK-1070   
Keyboard operation unit  Operation circuit B  CCK-1059   
Keyboard operation unit  Keyboard unit  CCK-1061   
Keyboard operation unit  38 knob  MPHD30460   
Keyboard operation unit  22 knob  MPHD30459   
Power supply unit  Power supply unit  NBD-913   
Power supply unit  PSU replacement FAN kit  7ZYNA4007 
 
Central control unit  CCU repair kit  NZC-1590/A   
Central control unit  SSD 256GB  CDD-753   
Central control unit  DVD drive  CDD-754   
Central control unit  FAN kit for changing the CCU  7ZYNA4006