Introduction To Troubleshooting - Data General NOVA 4/S Manual

Data General Corporation (DGC) has prepared this manual for use by DGC personnel and customers as a guide to the proper installation, operation, and
maintenance of DGC equipment and software. The drawings and specifications contained herein are the property of DGC and shall neither be reproduced in whole or
in part without DGC's prior written approval nor be implied to grant any license to make, use, or sell equipment manufactured in accordance herewith.
CHAPTER 3
INTRODUCTION TO TROUBLESHOOTING
Part II of this manual consists of 11 chapters (Chapters
3 through 13), which contain two types of information:
troubleshooting procedures and reference information.
Both are intended for use during:
e Initial checkout of a new installation or addition
to an existing system
e Repair of an existing system
While these situations are different, many of the
procedures required to perform both initial checkout
and repair are the same, as shown in_ the
troubleshooting flowchart, Figure 3.1. This flowchart
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leads you through a logical sequence of fault isolation,
referencing Chapters 4 through 8. These chapters
contain step-by-step procedures for detecting faulty
assemblies and checking the reliability of the system.
(Actual replacement procedures are outlined in Part III,
Chapter 14.)
Chapters 9 through 13 provide an operational overview
of the major system printed circuit boards. These
chapters will better acquaint you with NOVA 4/S and
NOVA 4/X computers and will be useful when you are
required to troubleshoot using an oscilloscope.