I have a question concerning repair of a CCAs soldered with 
     no-clean flux (hand soldered and/or wave soldered).  
     
     If you need to repair/rework the CCA, do you use an RMA flux 
     for the repair/rework or no-clean flux? If you use a 
     no-clean flux, how do you know if you have flashed off all 
     the flux that was applied?  Wave soldering pretty much 
     covers the entire bottom side flashing off the no-clean 
     flux, however, a soldering iron may not do that.   
     
     If you use an RMA and clean then it would seem you are 
     defeating the purpose of the no-clean.  Will that cause a 
     problem since the rest of the CCA was soldered using 
     no-clean?
     
     I have heard of cleanable no-cleans, but, what if you are 
     not using a cleanable no-clean.  Could someone straighten me 
     out on this issue?  Thanks!

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