1 Jun
2005
1 Jun
'05
4:53 p.m.
David Bryan just scanned and sent me a copy of "HP's 5 1/4-Inch
Winchester Disc Drive Service Documentation" (HP
09134-90032, August 1983) for the old style HP 9133/9134 and 9135 disk
drives. Besides the always useful service information, it includes
For suitable values of 'useful' ;-). There are no full schematics, for
example. I was suprised to see the alignment info for the index sensor in
the ST506, etc. That's not something that normally needs adjustment.
One other thing I noticed. In the parts list for one of the units
(9133XV?), it calls the firmware EPROM the 'Coyote ROM'. Was that the
codename for the 9133XV?
Still quite an interesting manual, particularly the appendix which gives
the command set.
-tony