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VIDEOPORTERO DIGITAL -
The video system does not work in any monitor: auto switch-on, screen
doesn´t come on when receiving a call,..
Check the mains voltage in the power supply unit that feeds the monitors.
Check that the voltage of the power supplies between + and – is 15 ±
10% Vdc. Check if there's a short circuit and rectify it. Disconnect the
power supplies 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 ± 10% Vdc. Check the
conexion between the power supply and the audio unit. 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 14 ± 10% 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 the polarity of the twisted pair.
In multiple access installation, check that you have only one entrance
panel defined as the main one. Make sure that the multiple-access video
line is correctly loaded (resistence of 220 ohms in the unused terminals
T2+,T2–). If splitters have been used in the distribution, check that the
voltage between + and – of the splitters is 15 ±10% Vdc. Check that
twisted pair line has a 120 Ohm load: a) if tap-offs have been connected
in series the 120 Ohm resistance must be removed from all the intermediate
tap-offs; b) with monitors in series cut the 120 Ohm resistances on all the
connection brackets, but from the one at the end of the line. Check twisted
pair connection in splitters and tap-offs. 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 the polarity of the twisted pair.
Check that twisted pair line is charged with 120 Ohm: with monitors in
series cut the 120 Ohm resistances on all the connection brackets, but
from the one at the end of the line. Check the position of the J1 configuration
PROBLÉMES DE FONCTIONNEMENT
Rien ne fonctionne
.
Le porte carte de la plaque de rue ne s’illumine pas
jumper in the connection brackets. If you cannot find the fault there may
be something wrong with the monitor.
Auto switch-on does not work on any monitor.
In multiple access installations, check that one entrance panel has been
defined as the main one and check connections D3 and D2 between
different entrance panels. 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.
Blank screen on all the monitors
Check that the twisted pair to the monitors is connected to the T1+ and
T1– terminals of the video unit. In multiple access installation, check the
T2+, T2– connections of the twisted pair between the different video units.
Check the connection between the video and the audio units. If splitters
have been used in the distribution, check that the voltage between + and
– of the splitters is 15 ±10% Vdc. Check the connections of the twisted
pair from the video unit to the monitors. If failure is not detected, there
may be something wrong with the video unit, any tap-off or any splitter.
Blank screen on one monitor
Check the connection between the connection bracket and the monitor.
Check the connections of the twisted pair in the monitor's connection
bracket. Check twisted pair'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.
Calls are no longer being received on the concierge unit.
Check the operational mode of the concierge unit. If it is running in normal
mode, turn off the concierge unit, then turn it on again.
If the problem persists, check the connections between the entrance panels
and the concierge unit.
If the fault cannot be located, the audio unit of the entrance panel or of
the concierge unit might be damaged.
If every so often the entrance panel turns itself off, then on again.
Check that the jumper J1 is in the correct position. If the problem persists,
the audio unit may be damaged.
Il n’y a pas de confirmation acoustique quand on appuie sur la touche
Sur l’écran n’apparaît pas la touche appuyée
Sur l’écran apparaît "88888"
Si le texte "F0" apparaît sur l’écran de façon intermittente.
Si le texte "F1" apparaît sur l’écran de façon intermittente
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