User's Manual

CHAPTER 1 NDA-24300
Page 2
Issue 1
INTRODUCTION
• When only the contents of a system message needs to be known, or when a fault is to be diagnosed
from a system message
• When the range of faulty conditions has been specified and a faulty circuit card can be assumed
• When investigating the system for the purpose of a fault repair
• When replacing a unit/circuit card with a spare
• When performing routine maintenance
Chapter 5
See Section 4, Reporting Fault to NEC, in Chapter 2.
Chapter 5
See Section 2, Basic Knowledge, in Chapter 2.
Chapter 5
Chapter 4
Chapter 7