NEC UNIVERGE SV9100 System Maintenance Manual page 17

UNIVERGE SV9100
No internal Dial Tone to any Multiline Terminal or SLT
Turn system Off. Disconnect all connectors and
remove all blades except GCD-CP10 and the first
installed GCD-8DLCA in the controlling chassis
associated with the programming station.
Dial
Tone
Build system, one blade at a
time until problem reappears.
Replace defective blade.
Yes
1. If problem not solved, perform First Initialization and test. If
trouble persists go to step 2.
2. Replace GCD-CP10 and test system using default program.
System Maintenance Manual
chassis panel lit on
GCD-CP10 or any other
blade?
Ye
s
Turn system On.
Dial Tone on Multiline
Terminal on 1st
CD-8DLCA?
No Dial Tone
Reset CD-8DLCA. If trouble persists, replace
CD-8DLCA.
Dial tone?
No
A1
No
Correct AC Power Problem.
Replace Fuse(s).
Done
Build system one
blade at a time and
replace bad
blade(s).
Check AC Input Power.
Bad
AC Power?
Good
Bad
MPS7101
Fuses F1 and
F2 good?
Good
Replace Corresponding Power
Supply.
Yes
Problem
.
Solved?
No
Remove all blades but
one GCD-8DLCA, and
retest.
Yes
Problem
Solved?
No
Replace chassis.
Issue 1.0
5