DNC offer Fanuc o-a system pcbs exchange or fanuc o-b board and fanuc control repairs on both GE Fanuc series o-a, and fanuc o-b system controls. However DNC has a stock of Fanuc o-a systems and fanuc o-b controls, both fanuc pcbs and fanuc masterboards for sale. If the fanuc controls, or fanuc systems boards or fanuc units are not listed below, check our cnc repairs department for fanuc systems oa or ob, go to Fanuc o-a pcb repair,/ o-b control repairs, fanuc pcbs exchange.