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77715775
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TM
WREN DISK DRIVE
MODEL 9415-5
THEORY OF OPERATION
DIAGRAMS
MAINTENANCE (NON-SEALED AREA)
PARTS DATA (NON-SEALED AREA)
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Volume 2F
HARDWARE MAINTENANCE MANUAL
71715775
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\::I r:I CO~O~TION
CONTROL DATA~
TM
WREN DISK DRIVE
MODEL 9415-5
THEORY OF OPERATION
DIAGRAMS
MAINTENANCE (NON-SEALED AREA)
PARTS DATA (NON-SEALED AREA)
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Volume 2F
HARDWARE MAINTENANCE MANUAL
TM
9415-5 WREN Disk Drive
A15-ES8 MAINTENANCE MANUAL VOLUME 2F
REVISION RECORD
MANUAL ISECT ION REVISION STATUS
R CHANGE
DATE
E AUTHORITY
V 1 2 3 4 5 6 7 8 9 10
~ 3 ~,' IV L I
A ISSUE ~\iL, A A A A ~)R7J!7IJ
Address all comments concerning this
publication to the distributor or use
'JAGNETIC PERIPHERALS INC. the enclosed user comment sheet located
Printed in the United States of America in the back of this publication.
All Rights Reserved
ii 77715775-A
PREFACE
This Manual provides the information needed to maintain and troubleshoot the
CDC Model 9415-5 WREN TH Disk Drive (BJ7D5-A). It is intended to serve
customer engineers who require information about the WREN Disk Drive
main tenance .
The total content of the Manual is comprised of four sections, each having a
unique publication number, and is contained in one volume. The manual's
publication number (77715775) along with the unit series code number, should
be used when making reference to the WREN-5 Disk Drive Hardware Maintenance
Manual.
The following table identifies the content of this manual.
SECTION NUMBER TITLE PUBLICA TION NO.
*4 Theory of Operations 77715776
5 Diagrams 77715777
6 Main tenance 77715778
7 Parts Data 77715779
* Sections1, 2 and 3 are provided in the WREN Disk Drive Installation I
Operation Manual PIN 77715771.
77715775-A iii
TABLE OF CONTENTS
SECTION PAGE
PREFACE iH
THEOR Y OF OPERA TION
4.1 INTRODUCTION