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HP 9153 A Service Manual page 81

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9153A-5
SERVICE
NOTE
Supersedes:
9153A
APPLIES TO:
All Units:
X
Only
Units on Agreement:
Immediately:
At
PM/Normal
Call:
PERFORM:
j
a
i
:
3
1/2
In.
Double
Sided
Floppy
Dise
On
Failure:
Information
Only:X
Drive
WARRANTY:
EXTENDED
LABOR:
Serial number:
PARTS:
All
TRAVEL:
SERVICE
Return
for
Update:
Use
as
is:
Top
Head
Damage
of
the
Drive
INVENTORY:
Return
for Salvage:
See Text:X
Mechanism
HP
part
number
09114-69511.
RRNA
cm ENEO NTIC:
N/A
Situation:
Top
head
damage
is
occuring
on
the
Sony
drive
mechanism
(09114-69511)
used
in
this
unit.
This
top
head
damage
could
cause:
l. Scratching
of
media.
2.
Failing
self
tests.
3.
Not
being
able
to
read
or
write
data
on
media.
4.
Intermittent
failures.
Cause:
The
new
plastic
shipping
disc,
HP
part
number
1535-4881,
used
in
this
drive
may
become
partially
ejected,
due
to
shock
of
shipment.
When
the
shipping
disc
becom-
es
ejected
without
first
pressing
the
eject
button,
the
cassette
up
assembly
is
still
in
the
head
load
position.
Since
the
heads
are
then
loaded
incorrectly
on
the
shipping
disc,
vibration
and
shock
can
easily
damage
the
heads.
Other
damage
could
occur
if
the
customer
perceives
that
the
shipping
disc,
although
slightly
ejected,
is
ready
to
install
or
remove
from
the
drive.
When
the
disc
or
media
is
installed
or
ejected
without
first
pressing
the
eject
button
to
unload
the
heads,
head
damage
can
occur.
This
damage
may
be
either
loosening
of
the
top
head
caus-
ing
failures
at
a
later
date
or
tearing
out
the
top
head
completely
causing
a
DOA.
It
is
also
possible
for
media
to
become
partially
ejected
from
the
mechanism
due
to
shock
and
vibration.
The
same
cautions
regarding
removal
and
insertion
of
partially
ejected
shipping
discs
also
applies
to media.
FOR
MORE
INFORMATION,
CALL
YOUR
LOCAL
HP SALES
OR SERVICE
OFFICE
or East
(201)
265-5000,
Midwest
(312)
255-9800,
South
(404)
955-1500,
West
(213)
970-7500
or
(415)
968-9200
OR
WRITE, Hewlett-Packard,1820
Embarcadero,
Palo
Alto,
California
IN EUROPE,
CALL
YOUR
LOCAL
HP SALES
or
SERVICE
OFFICE
OR WRITE,
Hewlett-Packard
S.A.,7,rue
du
Bois-du-Lan,P.0.
Box,
CH-1217
Meyrin
2-Geneva,Switzerland.
IN JAPAN,
Yokogawa-Hewlett-Packard
Ltd.,
1-27-15,
Yabe
Sagamihara
City,
Kanagawa
Prefecture,
Japan
229.
1983
Hewlett-Packard
Company

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