RX02 problem

[allison]

On 02/03/2018 03:38 PM, Bill Gunshannon via cctalk wrote:
> Do we have any real RX02 experts?  My long time running
>
> RX02 seems to have decided to go on strike.  When I try to
>
> access it now it repeatedly loads and unloads the heads but
>
> never reads anything.  I can usually break out of it with
>
> control-C.  Attempts to boot from it have the same effect.
>
>
> Anybody else ever see this behavior?
>
>
> Oh yeah, I know the controllers are good as I also have an
>
> AK6DN emulator and it works (well up to a point, but that's
>
> a problem for another message.  :-)
>
>
> bill
>
>
>
HI,

Assuming you haven't killed the media either the heads are crudded up
or the cable is partially disconnected.

FYI if the heads are crudded up the media with have a circular scratch
generally in the directory or boot areas (outer edges).  That kills the
media for reading that area.

FYI like everyone I use Isopropanal-91% for cleaning but fpr the
difficult jobs
either xylene(hard to find) or MEK (Methyl-Ethel-keytone)  for the
really stiff
stuff piles as they can dissolve binder.


Allison