NEC UNIVERGE SV9100 System Maintenance Manual page 18

Issue 1.0
No LED or Display Indications on any Multiline Terminal
Terminate one Multiline Terminal to controlling
chassis, 1st CD-8DLCA (Programming Station)
Check Station
Cabling.
Reset CD-8DLCA. If trouble persists,
replace CD-8DLCA.
Indications?
None
1.
If problem not solved, perform First Initialization and test. If
trouble persists go to step 2.
2. Replace GCD-CP10and test system using default program.
6
Are LEDs on front of
chassis panel lit on GCD-
CP10or any other blade?
Yes
directly to MDF and test.
Yes
except GCD-CP10and first installed
No
CD-8DLCA in controlling chassis,
Terminal
associated with the programming
Indications?
No Indication
Correct
A2
No
Correct AC Power Problem.
Turn system Off. Disconnect
connectors; remove all blades
station.
Terminal
Installed
Indication?
Correct
Indication
Rebuild System one blade at a time. If
problem reappears replace defective
blade(s).
blade at a time and
UNIVERGE SV9100
Check AC Input Power.
Bad
AC Power?
Bad
Replace
Fuse(s).
Fuses F1 and F2 good?
Replace Corresponding Power
Supply.
Yes
Problem
Done.
Solved?
Remove all blades but
one CD-8DLCA, and retest.
Yes
Build system one
Problem
replace bad
Solved?
blade(s).
Replace chassis.
System Maintenance
Good
MPS7101
Good
No
No