Troubleshooting Chart - AT&T MERLIN 410 Administration Manual

Troubleshootlng Chart
If something goes wrong in the operation of your MERLIN system, use the following troubleshooting chart to determine the
possible cause of the problem. In many cases, you can clear the trouble yourself without the need for a service call.
Trouble
You cannot make an outside call.
All voice terminals are dead; that is,
there are no lights, no dial tone.
The red warning light
on the control
unit is lit.
The voice terminals do not ring.
36
Possible Cause
The problem may be the telephone
company lines.
The Outward Calls switches on the
control unit are set to No (down).
The Tone/Pulse switch on control unit
is not set correctly.
All connections may not be secure.
There is no power to the control unit.
The cartridges may be loose.
The volume control is turned off.
The lines are programmed not to ring.
The Do Not Disturb feature is activated.
Do This
• Plug a standard modular telephone into the
telephone company wall jack for your in-
coming line that has the trouble.
• If you experience the same problem when
you use the standard modular phone,
report the trouble to your local telephone
company.
• Set Outward Calls switches to Yes (up).
• Set the Tone/Pulse switch to Pulse. If you
purchase Touch-Tone service from the
telephone company, set the switch to Tone.
• Check the connections plugged into each
voice terminal, the control unit, and the
telephone company line jacks.
• If there are any loose connections, make
them secure.
• Make certain that the On/Off switch is set
to the On position.
• If the green light on the control unit is off,
plug something else into the ac outlet to
see if it is supplying power. (Make sure the
control unit is not plugged into a switch-
controlled outlet.)
• Unplug the control unit.
• Make sure that all cartridges are firmly
seated in the control unit slots.
• Plug in the control unit.
• Wait for a full five minutes.
• If the red light goes out (and stays out), the
trouble is cleared up.
• If the red light remains on, call your equip-
ment supplier.
• Turn up the volume.
• Program line ringing as desired.
• Touch Do Not Disturb to deactivate the
feature. (The green light goes off.)
• If the buttons on your voice terminal are not
labeled, check each programmable button
to see
if the green light next to it is on; the
Do Not Disturb feature should be on one
of those buttons. Then, reprogram those
buttons.