12 Feb
2010
12 Feb
'10
8:23 p.m.
And that is confirmed, the problem with the disc is
not making enough speed
at startup to intialize the controller. The colder the envirement the bigger
the problem, warming the disc would make it start some times, I had a spare
so I changed it.
And now is this one 'Going to America'.
This sounds as though it has a mechnical provlem, possibly bnearings.
It's possible to remove the lower metal housing complete with the
motor/control PCB. The motor state is clipped into a large hole in that
PCB, the driver components are around it. The magnetic rotor comes off
the spinde (obvious nut), and yoyu can remove the data PCB. But that's
about as far as I've gone. Opening the HDA should be possible (it's low
enough density that the head hieight is probably large enough not to
requrie a very exotic clean room), but it's not going to be trivlal.
I can try to measure the totrational force of my drive (e.g. by siding a
string around the rotor and pulling it with a spring balance) so you can
see if yours is mechanically sticking.
-tony