Preface - IBM 2283 Hardware Maintenance Service

Preface

This manual contains service information for the 2283
& 6274 Service Level A (SL-A) model of the IBM
Personal Computer, worldwide. This manual is
intended to be used as a stand-alone document to
service machine type 2283 & 6274 products. It is
divided into the following chapters:
Notices contains important safety information and
notices required to service this computer.
General Information contains a brief description of
this manual.
Check Procedures provides step-by-step
instructions that aid in locating the failing Field
Replaceable Unit (FRU).
Diagnostic Aids explains how to use the diagnostics
tools for isolating failures.
Repairing Information contains illustrations and
descriptions to disassemble and reassemble the
computer.
Parts/Test Point Locations contains illustrations and
descriptions of the locations of the major parts,
jumpers, and connectors.
Safety Inspection Guide contains information about
inspecting a machine for safety problems before
putting the machine under a Maintenance
Agreement.
Parts Catalog contains descriptions, illustrations,
and part numbers for individual FRUs.
Appendix A, FRU Number Index contains part
numbers listed in numerical order.
xxxii