Check the Berg end of the controller cable - make
sure you don't have
any disloged pins or wires that are pulling out of the crimp pins...
those ends are somewhat fragile (compared to IDC-type flat cables),
and I've seen some mechanical abuse.
Okay, that's at least part of the problem. The red wire that connects
near the end of the connector marked AB is broken. Looks like it will
Are you sure it's not supposed to be? One of the 'corner pins' is used to
provide power for the terminator (sourcde by the RL drive that the
terminator is plugged into) and is not bused between drives or to the
controller. I would at least check this wire is used before worrying
about it.
-tony