User's Manual

NDA-24300 CHAPTER 5
Page 351
Issue 1
FAULT REPAIR PROCEDURES
(2) For Single Configuration
Check to see if the fault occurs by
extracting TSW circuit cards one by one.
Replace the TSW circuit card referring to
Section 2.3.2, TSW Card Replacement
Procedure, in Chapter 4.
Check to see if a station-to-station connection
can be set up and identify a TSW circuit card
responsible for the fault.
Perform the above check by extracting the TSW
circuit cards individually.
Check to see if the fault occurs by
extracting MUX circuit cards one by
one.
Replace the MUX circuit card referring to
Section 3.3.2, MUX Card Replacement
Procedure, in Chapter 4.
Initialize the system by pressing the START
button on the TOPU.
Check to see if a station-to-station connection
can be set up and identify a TSW circuit card
responsible for the fault.
Perform the above check by extracting the TSW
circuit cards individually.
ATTENTION
Contents
Static Sensitive
Handling
Precautions Required
START
A