Issue 1.0; No Internal Dial Tone To Any Multiline Terminal Or Slt - NEC Univerge SV8100 System Maintenance Manual

UNIVERGE SV8100

No internal Dial Tone to any Multiline Terminal or SLT

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.
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 CD-CP00-US and test system
using default program.
System Maintenance Manual
A1
Are LEDs on front of
chassis panel lit on
CD-CP00-US or any
other blade?
Yes
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
No
Bad
Correct AC Power
Problem.
Bad
Replace
Fuse(s).
Replace Corresponding
Power Supply.
Yes
Done.
Remove all blades but
one CD-8DLCA, and
retest.
Build system Yes
one blade at a
time and
replace bad
blade(s).

Issue 1.0

Check AC Input
Power.
AC Power?
Good
MPS7101
Fuses F1
and F2
good?
Good
Problem
Solved?
No
Problem
Solved?
No
Replace chassis.
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