NEC ElectraElite 48, System Hardware Manual

Page: 419 / 435

Issue 6 Electra Elite
10 - 14 System Maintenance
Multiline Terminal Function Problems
Go to Flowchart A2.
Check Memory Block 7-2 for
correct Station Assignment.
All
terminals
affected?
Assignment
correct?
Reassignment
End.
Yes
Is Problem
solved?
Perform Multiline Terminal Self Test:
1. Unplug terminal line cord.
2. Hold down * and # together and plug in the line card.
3. Press each terminal key to test tones, LEDs, and key contacts.
4. Return terminal on-line by taking handset off-hook and then
return to on-hook.
No
Reset and test. Replace defective
terminal, and test.
Connect terminal directly
to MDF, and test.
Send terminal
in for repair.
Yes
No
Is Problem
solved?
Reset and test, and replace
ESI(8)-U( ) ETU.
No Yes
Is Problem
solved?
Replace station cable.
1. Perform Second Initialization, and test.
2. Perform First Initialization, and test.
3. Replace B48-U10 KSU, and test using
default program.
Is Problem
solved?
Yes No
Send ESI(8)-U( ) ETU
in for repair.
No
Yes
D1
Yes
No