NEC Univerge SV8100, System Maintenance Manual

Page: 23 / 78

UNIVERGE SV8100 Issue 1.0
System Maintenance Manual 2 - 5
No internal Dial Tone to any Multiline Terminal or SLT
No
Check AC Input
Power.
Are LEDs on front of
chassis panel lit on
CD-CP00-US or any
other blade?
Turn system Off. Disconnect all connectors
and remove all blades except CD-CP00-US
and the first installed CD-8DLCA in the
controlling chassis associated with the
programming station.
Correct AC Power
Problem.
Bad
AC Power?
Good
Bad
Good
Replace Corresponding
Power Supply.
MPS7101
Fuses F1
and F2
good?
Turn system On.
Dial Tone on Multiline
Terminal on 1st
CD-8DLCA?
Dial Tone
No Dial Tone
Replace
Fuse(s).
Reset CD-8DLCA. If trouble
persists, replace CD-8DLCA.
Yes
Done.
Problem
Solved?
No
Build system, one blade
at a time until problem
reappears. Replace
defective blade.
No
Dial tone?
Yes
Remove all blades but
one CD-8DLCA, and
retest.
Replace chassis.
No
Yes
Problem
Solved?
Build system
one blade at a
time and
replace bad
blade(s).
1. If problem not solved, perform First Initialization
and test. If trouble persists go to step 2.
2. Replace CD-CP00-US
and test system
using default program.
A1
Yes