General Test - AT&T MERLIN 820 Installation Manual

TROUBLESHOOTING TABLE (CONTINUED)
Trouble Possible Cause
All voice terminals Switch-controlled
power outlet
have no lights and
no dial tone.
(continued)
Faulty power outlet
A module or car-
tridge is loose

GENERAL TEST

If you are experiencing a problem not described in the previous tests, or if none of the tests reveal a specific problem, try the following procedure before calling your
equipment supplier.
Possible Cause
Trouble
The control unit may
The system isn't
need to be reset.
working properly and
the trouble isn't
described in the
A module or car-
Troubleshooting
tridge may be loose.
Table, page 33.
36
Do this
2. Make sure the control unit is
not plugged into an outlet
controlled by a wall switch.
Test the outlet by plugging in
3.
an appliance such as a lamp
or a radio.
4. Set the control unit power
switch to Off. Remove and
replace each module and
cartridge, making sure each
is securely seated in its slot.
Set the power switch back to
On.
Do this
1. Set the control unit power
switch to Off and then back to
On.
2. Set the control unit power
switch to Off. Pull out each
module and cartridge and re-
insert it, so that each module
and cartridge is securely
seated in its slot. Set the
power switch to On.
If
the control unit is not plugged go to step 3.
into a switch-controlled outlet
the appliance doesn't work
the outlet is faulty.
the appliance works go to step 4.
the red warning light goes out the problem is solved. One of the
modules or cartridges was not
securely in place.
the red warning light remains on contact your equipment supplier.
If
go to step 2.
the trouble remains
the trouble remains contact your equipment supplier.
Then
Then