HP 3000 SERIES II System Service Manual page 5

PREFACE
I
This manual is intended for use by a trained Hewlett-Packard Customer Engineer (CE) trained in the
principles of operation and troubleshooting procedures for the HP 3000 Series II Computer System.
This maintenance manual contains the following sections:
Section I System Verification - Verification procedures that permit the CE to determine the
system operates properly.
Section II System Troubleshooting - Troubleshooting procedures designed to aid in the location
of a system problem.
Section III Maintenance Panel Operating Procedures - Description and use of the HP 30354A
Maintenance Panel to aid the CE analyzing system operation.
Section IV Maintenance Procedures - Repair philosophy and general servicing information
(PCA jumper and switch position information), and system servicing points to aid the CE when
troubleshooting the system. Principles of operation of the memory module is included in this
section to assist in troubleshooting memory problems.
Section V Replaceable Parts - A list of replaceable assemblies and their part numbers. Also
included is a list of replaceable cables and their part numbers, and miscellaneous items that may
require replacement.
Appendix A Microdiagnostics - Instructions for executing the microdiagnostics that are built
into the system.
Appendix B System Power Supplies - Detailed information on the system power supplies.
Appendix C Battery Care - Background material about system batteries and their care.
Related manuals and other documents the CE may require or find useful to maintain the system are:
HP 3000 Series II Engineering Diagrams Set, part number 30000-90076
HP 3000 Series II Computer System Reference Manual, part number 30000-90020 (System
description from a hardware standpoint.)
HP 3000 Series II Computer System Operator's Guide, part number 30000-90013
HP 3000 Series II Computer System Manual of Diagnostics
HP 3000 Series II Computer System Installation Manual, part number 30000-90019.
JAN 1977
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