Specifications
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SECTION I
INTRODUCTION
1.1 PURPOSE
This publication is
designed
as
a
reference
source
for
OEM
engineers.
system
Integrators. service
and
maintenance
technicians.
and
knowledgeable
end
users.
It
is
assumed
that
the
reading
audience
is sufficiently
versed
in
the state-
of-the-art
with
respect
to
rigid disk
drives
.
1.2
GENERAL
DESCRIPTION
The
Shugart
706/712
Disk Drives
are
random
access 5.25 inch (130
mm)
Winchester
storage
devices with
one
(706)
or
two (712)
non-removable
disks
as
storage
media.
Ellch disk surface
employs
one
movable
head
to service I
320
data
tracks.
These
drive
are
available in half-height
or
fun
height configurations.
Low cost
and
high reliability
are
acheived
through
the
use
of
a
unique
rotary
band
actuator
design, a self-contained
microcomputer.
and
custom
LSI
circuitry.
The
706/712
interface is either
ST506
or
ST412
compatible, allowing
easy
integration into existing systems. Some
of
the
key features
of
this series
are
as
follows:
a.
Microprocessor-based
electronics.
b.
Three
custom
LSI devices
for
reliability.
c. BuUt-in diagnostics.
I d.
Jumper
selected
exercise routines.
e.
Dedicated
landing
zone.
f.
Single
track
seek
time is less
than
latency.
g.
Read/write
pre-amp
on
head
arm.
h.
3370
head
flexure design.
l. Brushless
dc
spindle motor.
j.
Winchester
design reliability In a half-height
or
fun-height
package.
k.
Improved
shock
and
vibration characteristics.
1-1
...
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