Table of Contents
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PREFACEI
This publication provides field service information for the HP 7942 and HP 7946 Disc/Tape Drives. The
HP 7942 consists of a 24-megabyte disc drive and a tape drive combined in a single desktop cabinet to form
an integrated disc/tape drive. The HP 7946 consists of a 55-megabyte disc drive and a tape drive combined
in a similar manner.
This publication is divided into the following parts:
•
Section I - Contains a general description of the disc/tape drive.
•
Section II - Provides references to the CS/80 Instruction Set commands applicable to the disc/tape drive.
•
Section III -- Describes the operating principles of the disc/tape drive.
•
Section IV -- Contains servicing information for the disc/tape drive.
•
Section V - Supplies step-by-step removal and replacement procedures for field replaceable assemblies
and parts in the disc/tape drive.
•
Section VI -- Lists and illustrates the field replaceable assemblies and parts in the disc/tape drive.
•
Appendix A-Contains removal and replacement and relaceable parts for disc/tape drives with serial
number prefix 2614 and prior.
•
Tape Drive - Consists of a Tape Drive Service Manual. This manual provides detailed service informa-
tion for the tape drive portion of the disc/tape drive.
iii/iv
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