17 Dec
2017
17 Dec
'17
9:28 a.m.
On 12/17/2017 12:04 PM, Aaron Jackson via cctalk wrote:
Now that I have my RX02 drive working I have started
to take a look at
the RL02 drives again. I hooked a scope up to the sector transducer and
sector timing test points, and they look nicely aligned. So I moved on.
Then I hooked up the scope to the TP1, TP2 and the sector timing TP and
compared it to the output in the RL02 tech manual. S1 was fine but S2
was offset in the wrong direction (probably need to see page 3-8 in the
manual to understand). I had a look at where the heads are connected to
at up was connected to down and down was connected to up.
Without understanding the consequences I switched these and loaded a
pack. Unfortunately I heard a horrible sound and I now have a thin black
ring on the bottom side of my platter, which I am very upset about. :( I
unloaded very quickly but I think the damage is done.
One turn thats all it takes.
Why would the heads be installed this way?
Error, accident.
and why did it destroy my
platter when they are connected "correctly"?
Maybe the control finally
got a signal and decided to load them.
Does anyone understand what might have happened?
Simple the heads are designed to fly and have a shape suited for that.
Flip them over and they are wrong shape, they don't fly, they dig in....
oops!
Make sure the correct heads are in there correctly.
Allison