Operating Problems - Alcad TCB-110 Manual Del Usuario

VIDEOPORTERO DIGITAL - DIGITAL VIDEODOOR ENTRY SYSTEMS - VIDÉOPORTIER NUMÈRIQUE

OPERATING PROBLEMS

To program the devices (monitors/telephones), check that you are
loc ated on the main entrance panel (the J1 jumper is fitted to
the audio unit) and that you have only one entr ance panel defined
as the main one. Check that before pressing the push button of the
main entrance panel, the audio is activated between the device
and the entrance panel. Remember that the panel emits a
confirmation tone once the monitor/telephone has received the
code (device programmed). If the monitor/telephone cannot be
programmed: Check the connection between 7 in the audio unit
and the push buttons , the connection between the push buttons
and the concentrator of calls and the connection between the
concentrator of calls and the audio unit.
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 ithe breakdown continues,
disconnect all the power supply
check that the voltage between
cannot find the fault, there may be something wrong with the
power supply.
The card holders do not light up.
Check that the voltage between
supply that supplies the audio 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.
You cannot hear the call confirmation on the entrance
panel.
Check the connection between 7 in the audio unit and the
push buttons. Check the connection between the concentrator
of calls and the audio unit. Check that the call tone rings on
the monitors/telephones. If you cannot find the fault, there
may be something wrong with the concentrator of calls or the
audio unit.
If the red indicator light flash continuosly.
Check wether there is a short-circuit in the connections from
the audio unit to all the devices, D1 and D2 or in the
connections between the different entrance panels of the
system, D2 and D3 (installations with several points of access).
If you cannot find the fault, there may be something wrong
with the audio unit.
If intermittent tones can be heard on the entrance panel
when a call is made.
Check connections D1 and D2 from the audio unit to all the
devices and connections D2 and D3 between the different
entrance panels of the system (installations with several points
of access. If you cannot find the fault, there may be something
wrong with the monitor/telephone or the audio unit.
No monitor/telephone can be heard from the entrance
panel.
Check the volume control on the panel. If you cannot find the
fault, there may be something wrong with the audio unit.
One monitortelephone cannot be heard from the
entrance panel.
Check connections D1 and D2 from the device to the audio
unit. If you cannot find the fault, there may be something
wrong with the device
16
and V
and V terminals, and
and V is 12 Vac. If you
and V of the power
and V in the audio unit
You cannot hear the entrance panel on any
monitor/telephone.
Check the volume control on the devices (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
monitor/telephone.
Check connections D1 and D2 from the device to the audio
unit. If you cannot find the fault, there may be something
wrong with the device (monitor/telephone).
The sound produces feedback.
Lower the sound level using the volume control on the audio
unit.
The electric lock doesn't work.
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, there may be something wrong with the
electric lock.
In multiple access installation, when you call one of
the panels the rest of the panels in the system are not
disabled.
Check connections D2, D3 between the different entrance
panels of the system. If you cannot find the fault, there may
be something wrong with the audio units.
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 that
feeds the monitors. 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.
In multiple access installation, check that you have only
one entrance panel defined as the main one.
If splitters have been used in the distribution, check that
the voltage between - and + of the splitters is 15 Vdc.
Check that coaxial cable line has a 75 Ohm load: a) if
tap-offs have been connected in series the 75 Ohm
resistance must be removed from all the intermediate tap-
offs; b) with monitors in series cut the 75 Ohm resistances
on all the connection brackets, but from the one at the end
of the line. Check coaxial connection in splitters and tap-
offs. If you cannot find the fault, there may be something
wrong with the video unit.