NEC UNIVERGE SV9100 System Maintenance Manual page 104

Issue 1.0
Pressing each key will display the Key number to confirm the physical contact is good.
Certain keys will turn on red/green lamps to confirm all lamps are good
Certain keys will set the LCD display to test all pixels are good
Certain keys will cause the speaker to sound
Key
Exit
Soft key 1
Soft key 2
Soft key 3
Soft key 4
Help
Programmable keys 1~xx
Keypad 1~#
HOLD
Transfer
Speaker
Recall
Feature
Answer
Mic
Menu
Left navigation
Center Navigation
Right navigation
Up Navigation
Down Navigation
Lift handset to exit test mode.
92
Test Result (K =xx)
1
2
3
4
5
6
7~xx
D = 1~#
31
32
33
37
38
39
40
42
46
47
48
NA
NA
UNIVERGE SV9100
Other test
Key 1~3 will sound ring tones
from the speaker
LCD displays all black to check
pixels
Repeat press shows
Contrast ~ all off
Also turns all lamps Off-Green-
Red
System Maintenance Manual