i have a 357A chinon as dfo in my 3000 place before the twist on the ribbon cable. i had a 354 chinon i used on the next section. neither one worked remove the 354 and the 357 worked removed the 357 and the 354 worked.

??
the 354 is dfo i was told to make the 357 also dfo since it is after the twist????is that right.
please give me the correct configuration for these drives i have pulled most of my hair out trying to get these drives working. thanks :-?