Operating Problems - Alcad TCB-010 Manual De Usuario

VIDEOPORTERO ELECTRÓNICO - VIDEODOOR ENTRY SYSTEMS - VIDÉOPORTIER ÉLECTRONIQUE

OPERATING PROBLEMS

Nothing works.
Check the mains voltage in the power supply unit. Check
that the voltage between
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 ithe breakdown continues, disconnect
all the power supply V and
the voltage between
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
unit 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 handset 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
18
and V of the power supply
terminals, and check that
and V is 12 Vac. If this is not the
and V of the power
and V in the audio
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 lock may be broken.
The video system does not work in any monitor:
auto switch-on, screen doesn´t come on a callis
received,..
Check the mains voltage in the power supply unit. Check
that the voltage of the power supply between - and + is
15 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 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 switching 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 has a 75 Ohm load: 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 charged 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.