HP 9122D Service Manual page 49

91220 Dual Drive
09122-69501 Controller/Power Supply
~ate Code 2513 and Earlier
Seri~' Numbers: NA
9122D-4
SERVICE
NOT E
Supersedes:
NONE
SUPERSEDES.
APPUES TO:
AJI UnitS
~
Only Units on
A:;;r~rne~t
:l
PERFORM:
'mme-d'~t~y
•
At PM.-
Norm~1
Cail :::
On F ••
lunr
C Inform.tlon Only::
WARRANTY:
EXTENOEO
NORMAl NONE
LABOR:
X
PARTS;
X
TRAVEL:
X
SERVICE
Return for uOdlt.
~
Uu u is
c
INVENTORY
Return for salvage C
5ft tut 0
WARRANTY EXTENDEO UNTIL:
NA
Symptom: Controller/Power Supply. PN09122-69501, generates noise which
can affect the read amplifie~ of some 3.5 Inch Drives, PN09114-69511. The
noise reduces the window margin resulting in an increased soft error rate.
3.5 Inch Drives with date codes 2513 and 2514 are more susceptable to this
noise.
Th~
failure rate for the test used to detect error rate problems
increased to 4.8: from 0.8: when these drives were used in production units.
Solution: Controller/Power Supply PN09122-69511 has improved filtering to
reduce this noise. Return all Controller/Power Supplies PN09122-69501 for
credit and reorder using PN09122-69511.
We have not shipped drives with date codes 2513 or 2514 as repair inventory.
If these drives are shipped as repair inventory they will be tested to ensure
they have adequate
nois~
rejection to meet our specification with any
Controller/Power Supplies that have been shipped.
Warranty: Units that have been shipped have been tested for error rate
problems. No extended warranty is given.
Part Number 09122-69501
Date Code 2513 and earlier
F.S.I. Disposition Return for Credit
KK/tm
9320-'- 766
(1183)
09122-69511
2515 and later
Current Assembly
05/06/85 - 5800
"'fiOW
HEWLETT
~~PACKARO
'OR MORE INFORMATION. CALL YOUR LOCAL H' SALIS 0,. SERVICE OFFICE
or
e.n
(201) 265-6000 • Midwest 1312) 255·9800 • South
(4a.)
955·1500. West
(213) i7Q·7500 or 141S) .&8·i2oo OR WRITE.
H_'ert"lIC~rd.
1120 Emoarc:adero. Palo Alto. CAlifornil
~JOJ.
IN EUROPE. CALl. YOUR LOCAL HP SALES
or
SERVICE OFFICE OR WRITE.
H_'ett"acurd
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Yok~404_Ie'tt.JIlICkard
Ltd ••
1-27·15. YItM S.gamil\arl City.
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Pr.fect",... __ " 229.
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983 Hewlen-Pachrd Company
Printed in U.S.A.