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TROUBLE SHOOTING
Check the connections between the different elements. Check
the voltages in the different terminals (see “Technical
characteristics” on page 18).
Nothing works.
Check the mains voltage in the power supply. Check that
the voltage between
± 10% Vac. Check for the existence of a short circuit and rectify
this. Disconnect the power supply for 1 minute and then
connect it up again.
If it still doesn't work, disconnect all the power supply
and
terminals, and check that the voltage between
and
is 12 ± 10% Vac. If you cannot find the fault, there
may be something wrong with the power supply.
INTERNAL COMMUNICATION
It is impossible to make an internal call from any telephone.
Check the +i and Pi connections from the audio unit to all
the telephones. Make sure there is no short circuit in
connections +i and 5 of the telephones. Check the connection
between i1, i2 of the audio unit and the pushbuttons. If you
cannot find the fault, there may be something wrong with
the audio unit.
It is impossible to make an internal call from one of the
telephones.
Check the connection between i1 or i2 of the audio unit,
as appropriate, and the pushbutton. If you cannot find the
fault, there may be something wrong with the telephone.
There is no audio in the telephone which is making the call.
Check the i , i
connections between the telephones.
The telephone receives an internal call but, when the receiver
is picked up, the entrance panel is heard.
Check the +i and Pi connections from the telephone to the
audio unit Check the i , i
telephones. If you cannot find the fault, there may be
something wrong with the telephone.
The telephone receives an internal call but, when the receiver
is picked up, a buzzing sound is heard.
Ensure that there is no short circuit in connections i , i of
the telephone. Check the i , i connections between the
telephones. If you cannot find the fault, there may be
something wrong with one of the telephones.
OPERATION WITH ENTRANCE PANEL
Nothing works.
Check the mains voltage in the power supply. Check that
the voltage between
± 10% Vac. Check for the existence of a short circuit and
rectify this. Disconnect the power supply for 1 minute and
then connect it up again.
If it still doesn't work, disconnect all the power supply
and V
terminals, and check that the voltage between
and V
is 12 ± 10% Vac. If you cannot find the fault, there
may be something wrong with the power supply.
and
of the power supply is 12
connections between the
and V
of the power supply is 12
D O O R
E N T R Y
S Y S T E M S
The card holders don't light up.
Check that the voltage between
supply is 12 ± 10% Vac. Check that the voltage between
9 ,10 in the audio unit, with the lighting push button
activated, is 12 ± 10% Vac. Check wether the lamp is burnt
out.
The lighting push button pilot does not light up.
Check that the voltage between the
unit is 12 ± 10% Vac. If the voltage is correct, there may
be something wrong with the audio unit.
You cannot hear the call tone on any telephone.
Check that the voltage between 7,2 on the audio unit,
without pressing the push button, is 9 ± 10% Vdc. Check
the connection between 7 on the audio unit and the push
buttons. Check connection 2 from the audio unit to the
telephones. If you cannot find the fault, there may be
something wrong with the audio unit.
You cannot hear the call tone on a telephone.
Make sure there is no short circuit in connections +i and 5
of the telephones. Check connections 5,2 from the telephone
to the audio unit. Check the push button connection on the
entrance panel.
If you cannot find the fault, there may be something wrong
with the telephone or the panel push button.
You cannot hear the call confirmation on the entrance panel.
Check that you can hear the telephones on the entrance
panel. Check that the call tone rings on the telephones. If
you cannot find the fault, there may be something wrong
with the audio unit.
You cannot hear any telephone from the entrance panel.
Check connections 3,2 and +i,2 from the audio unit to all
the telephones. Check the volume control on the audio unit.
A telephone cannot be heard from the entrance panel.
Check connections 3,2 and +i,2 from the telephone to the
audio unit. If you cannot find the fault, there may be
something wrong with the telephone.
The entrance panel cannot be heard on any telephone.
Check the connections 4,2 from the audio unit to all the
telephones. Check the volume control on the telephones on
the panel. If you cannot find the fault, there may be something
wrong with the audio unit.
You cannot hear the entrance panel on a telephone.
Check connections 4,2 from the audio unit to the telephone.
If you cannot find the fault, there may be something wrong
with the telephone.
The sound produces feedback.
Reduce the volume of the sound using the volume control
on the audio unit.
The electric lock doesn't work.
Check that the voltage between 1,2 on the audio unit,
without pressing the lock release button, is 18 ± 10% Vdc.
Check that the voltage between 11,12 on the audio unit,
when you press the lock release button, is 12 ± 10% Vac.
If you cannot find the fault, the electric lock may be broken.
and V
of the power
and V
of the audio
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