Nortel Networks M7410 - Manual (Page 123)

122 Troubleshooting
Enterprise Edge Feature Programming Telephone Guide P0908510 Issue 02
Testing the telephone display
Use a display test if you suspect that one of the indicators on the telephone is not
working.
1. Press ƒ°‚fi . The display reads Display test .
2. Press TEST or
˙
to go ahead with a display test.
3. Adjust the contrast for the telephone display so you are able to see the test
results clearly. Enter a number to change the contrast or press DOWN and UP .
4. Press OK or ˙ to go ahead with the test.
During the test, the display should be filled with solid, dark blocks and all the
indicators next to the buttons on the telephone should be turned on. Any Busy Lamp
Field (BLF) or CAP modules that are attached to the telephone should be
completely lit. You lose any information that was showing on the BLF before the
test started.
Pressing any button ends the test.
Testing the telephone buttons
1. Press
ƒ°‚fi
, then
£
or NEXT .
2. Press TEST or
˙
to go ahead with a button test.
3. Press button to see its function. If the button you pressed uses an indicator, it
should turn on when you test the button.
4. Pressing the
®
button puts Rls button on the display briefly and returns you
to the Button test display.
Testing the speaker in the telephone handset
The handset test is not available if you have a headset plugged into the telephone.
1. Press
ƒ°‚fi
, then
£
or NEXT twice. The display reads Handset test .
2. Press TEST or
˙
to go ahead with a handset test.
3. Pick up the handset and listen. You should hear dial tone through the handset
at a maximum volume. The volume is reset to maximum only while the test is
going on.
Pressing any button or hanging up ends the test.