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91220-6
SERVICE
NOTE
Supersedes:
91220
APPLIES TO:
All Units:
)(
Only Units on Aqreem.ent:
PERFORM:
Inmediately:
At PM/Normal Call:
3 1/2 In. Double Sided Floppy Disc
Drive
WARRANTY:
On Failure:
EXTENDED
Information
Only:~
NORMAL
NONE
LABOR:
)(
Serial number:
PARTS:
)(
All
TRAVEL:
)(
S£I(VICE
Return
for
Update:
Use as is:
-Top
Head
Damage
of
the
Drive
Mechanism HP part number 09114-69511.
INVENTORY:
Return
WARRANTY
EXTE~D
UNTIL:
for Salvage:
See
Text
:~
N/A
Situation:
Top nead damage is occuring on the Sony drive mechanism (09114-69511) used in
this unit. This top head damage could cause:
1.
Scratching of media.
2. Failing
sel f tests.
3. Not being able to read or wri te data on media.
4. Intermi t ten
t
failures.
Cause:
RP
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.
9-23-85
FnDl
HEWLETT
~~
PACKARD
FOR MORE INFORMATION, CALL YOUR LOCAL HP SALES OR SERVICE OFFICE or East (201) 265-5000, Midwest (312) 255-9800, South
'4) g55-1500,
~st
(213) 970-7500 or (415) 968-9200 OR WRITE,Hewlett-Pack.rd,1820 Embarcadero, Palo Alto. C.lifornia
'--iN EUROPE, CALL YOUR LOCAL HP SALES or SERVICE OFFICE OR WRITE, Hewlett-Packard S.A.,7,rue du BOis-du-Lan,P.O. Box,
CH-1217 Meyrin 2-Geneva,Swit%erland.
IN JAPAN, Yokogawa-Hewlett-Pack.rd Ltd., 1-27-15, Yabe
Sag~ihara
City,
k.n.g.wa Prefecture. Japan 229.
1983 Hewlett-Packard Company
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Table of Contents
Troubleshooting
