Introduction; What Is Problem Determination - IBM 5150 Manual To Operations

Introduction
What is Problem Determination?
Problem determination is a set of procedures to help you resolve
operational or system failures. This guide will direct you to make
a series of observations and answer YES or NO when checking the
results. By following the steps outlined in this guide, you can tell
if service is needed, or what action to take to make your system
operational again.
Part of your Problem Determination may include loading the
Diagnostic Aids Diskette or Cassette.
The Diagnostic Aids contains a series of tests to help you locate a
problem with any of the four components of your system. These
four units are known as Customer Replaceable Units (CRUs) and
consist of the System Unit, Keyboard, Display and Printer. You
will find your Diagnostic Aids located in the rear of "Guide to
Operations. "
POPs 4-3