Operating Problems - Alcad TCB-010 Guia De Instalacion

VIDEOPORTERO ELECTRÓNICO - VIDEODOOR ENTRY SYSTEMS - VIDÉOPORTIER ÉLECTRONIQUE

OPERATING PROBLEMS

Nothing works.
Check the mains voltage in the power supply unit that feeds
the audio unit. Check that the voltage between
of the power supply is 12 Vac. Check for the existence of
a short circuit and rectify this. Disconnect the power supply
for 1 minute and then reconnect it. If the breakdown continues,
disconnect all the power supply
check that the voltage between
is not the case then there may be something wrong with the
power supply.
The card holders do not light up.
Check that the voltage between
supply unit is 12 Vac. Check that the voltage between 9 and
10 in the audio unit, with the lighting push button activated,
is 12 Vac. Check whether the lamp is burnt out.
The lighting push button pilot does not light up.
Check that the voltage between
is 12 Vac. If the voltage is correct, there may be something
wrong with the audio unit.
No monitor can be heard from the entrance panel.
Check connections 2 and 3 from the audio unit to all the
monitors. Check the volume control on the panel and the
lighting push button pilot. If you cannot find the fault, there
may be something wrong with the audio unit.
One monitor cannot be heard from the entrance panel.
Check connections 2 and 3 from the connection bracket to
the audio unit. If you cannot find the fault, there may be
something wrong with the monitor.
You cannot hear the entrance panel on any monitor.
Check connections 2 and 4 from the audio unit to all the
monitors. Check the volume control on the monitors (on the
panel) and the lighting push button pilot. If you cannot find
the fault, there may be something wrong with the audio unit.
You cannot hear the entrance panel on a monitor.
Check connections 2 and 4 from the connection bracket to
the audio unit. If you cannot find the fault, there may be
something wrong with the monitor.
You can hear whistling in the panel. The sound produces
feedback.
Lower the sound level using the volume control on the audio
unit.
The call tone doesn't ring on any monitor.
Check that the voltage between 2 and 7 in the audio unit,
without pressing the push button, is 9 Vdc. Check the
connection between 7 in the audio unit and the push buttons.
Check connection 2 from the audio unit to the monitors. If
you cannot find the fault, there may be something wrong
with the audio unit.
The call tone doesn't ring in a monitor.
Check that the receiver is not off the hook. Check the
connection between the connection bracket and the monitor.
Check connections 2 and 5 from the conection bracket to
the entrance panel. Check the push-button connection on the
audio unit. If you cannot find the fault, there may be something
wrong with monitor or the panel push-button.
You cannot hear the call confirmation on the entrance panel.
Check that you can hear the monitors on the entrance panel.
Check that the call tone rings on the monitors. If you cannot
find the fault, there may be something wrong with the audio
unit.
The electric lock doesn't work.
Check that the voltage between 1 and 2 in the audio unit,
without pressing the lock release button, is 5 Vdc. Check
that the voltage between 11 and 12 in the audio unit, when
you press the lock release button, is 12 Vac. If you cannot
find the fault, the electric lock may be broken.
18
and V
and V terminals, and
and V is 12 Vac. If this
and V
of the power
and V in the audio unit
The video system does not work in any monitor: auto
switch-on, screen doesn´t come on when receiving a
call,..
Check that the voltage of the power supply between - and
+ is 15 Vdc. Check the - conexion between the power supply
and the audio unit. Check if there's a short circuit and rectify
it. Disconnect the power supply for 1 minute and reconnect
it. If the breakdown continues, disconnect all the - and +
terminals from the power supply unit and check that voltage
between - and + is 15 Vdc. If it's not correct, there may be
something wrong with the power supply.
Video system does not work in one monitor: auto
switch-on, screen doesn´t come on when receiving a
call,..
Check that the ON/OFF switch for the video is in ON position
(on the left). Check that the red led of the monitor is on.
Check the connection between the connection bracket and
the monitor. Check that the voltage between - and + of the
connection bracket is 15 Vdc. If failure cannot be found,
there may be something wrong with the monitor.
Poor image quality on all the monitors: distorted
picture, ghost images, loss of synchronisation.
Check that coaxial cable line is loaded with 75 Ohm: with
two monitors in parallel cut the 75 Ohm resistance on the
first monitor. Check coaxial connections. If splitter has been
used, check that the voltage between - and + of the splitter
is 15 Vdc. If you cannot find the fault, there may be something
wrong with the video unit.
Poor image quality on one monitor: distorted picture,
ghost images, loss of synchronisation.
Check that coaxial cable line is loaded with 75 Ohm. Check
coaxial connections. If you cannot find the fault there may
be something wrong with the monitor.
Auto switch-on does not work on any monitor.
Check that the voltage between 1 and 2 of the audio unit,
without pushing the auto switch-on button is 5Vdc. If you
cannot find the fault there may be something wrong with the
audio unit.
Auto switch-on does not work on one monitor.
Check that pushing the auto switch-on button the red led
flash. Check that the system is not engaged. If you cannot
find the fault, there may be something wrong with the
connection bracket or the monitor.
White picture in all the monitors
Check that the coaxial cable to the monitors is connected to
the M and V1 terminals of the video unit. Check the connection
between the video and the audio units. If splitter has been
used, check that the voltage between - and + of the splitter
is 15 Vdc. Check the connections of the coaxial cable from
the video unit to the monitors. Check the position of the J1
configuration jumper in the connection brackets. If failure is
not detected, there may be something wrong with the video
unit or the audio unit.
White picture in one monitor
Check the position of the J1 configuration jumper in the
connection bracket. Check the connection between the
connection bracket and the monitor. Check the connections
of the coaxial cable in the monitor's connection bracket.
Check coaxial's connection from the connection bracket to
the video unit. If failure is not detected there may be something
wrong with the tap-off, connection bracket or monitor.