13 Dec
2009
13 Dec
'09
6:04 p.m.
Hi Tony,
thanks for the reply.
Hm. I can understand that...
The RK05 manual tells me how easy it is to
realign the heads: Just load the alignment pack and...
-- But I don't have an alignment pack :-(
Does anybody (best would be in Europe) have an RK05 alignment pack I could use?
I have one, but there's no way I am trusting it to the postal 'service'
> Is there a known trick to do it without alignment
pack? I have working drives and formatted disks handy.
3) With a 'scope connected to the read amplifer
testpoints (as if doing
the alignment with the pack) and the positioner set to cylinder 0, screw
in the appropriate algnment screw. You'll see the singal amplitude rise
as the ehad gets over the data track, and then fall off as you go past it.
How does the positioner find track 0?!?
Does it use the end of range microswitch and then count? This is a bit unclear to me.
BTW the drive has failed further: I powered it up, could manually load the heads. But they
are
somewhat unstable. Could not go online. The positioner force while retracting is very low.
And
everything is moving a bit. Last but not least, a PSU regulator failed with great optical
effects.
I'll put aside this unit for now. And have a look at the next one. But this is still
in the queue.
Best wishes,
Philipp :-)
--
http://www.hachti.de