Nortel North American DMS-100 Instruction Manual page 562

TOPS MPX Operator complaint audio/headset malfunction
Summary of operator compliant - audio/headset malfunction
Operator
complaint
Insert SYSTEM
diskette into
floppy drive
System boots
to DOS
prompt
Remove
headsets
from both jacks
Insert and
remove headsets
during test
DMS-100 Family NA100 Trouble Locating and Clearing Procedures Volume 2 of 2 LET0015 and up
Trouble locating and clearing procedures (continued)
Remove TOPS
MPX position from
service
Turn power on
>auddiags
[options]
Enter Y/N for time
source generator
attached
N
Test
failed?
Y
Replace
headset
Y
Power
on?
N
Y
Loop
continuous
selected?
N
N
Using
headset
hardware?
Y
Remove and
replace TOPS
MPX terminal
N
Repair wire or
replace headset
jack
1-541
(continued)
Insert SYSTEM
diskette into
floppy drive
RESET key
sequence
Enter Y/N for time
source generator
attached
Y
Test
failed?
N
Go to next
level of
support
Headset
jacks
faulty?
Y