Swapping the motor control board did indeed resolve
the problem. So now I
Right, so the HEA is fine... Good.
I assume you've tried the fualty board again, just in case it was a
connector problem.
can look at the faulty board and see if one of the
power transistors on
there has failed.
Of course it doesn't _have_ to be a power transistor problem, it might be
something in the drive electroncis. But the transistors are worth
checking first, they are the most likely thigns to fail.
-tony