-okuma howa ACT-2sp ,with Fanuc 0T,when we select left hand side crt is blank,
on Master PCB- L1 to L6 no LED are on.
with cnc on checked +5 ok on master card,axis card and I/O card .
manual suggests memory card and master card is defective.
how to confirm which card is defective.
if we have to replace memory card from other similiar machine what all precautions ?
pl help.