TROUBLESHOOTING
O Your device does not work.
w Make sure that power supply output tension between terminals '–' and '+' remains between 17,5
and 18,5Vd.c. Otherwise, disconnect the power supply from the system and measure tension
again. If it is correct, there is a short circuit in the installation. Disconnect the power supply from
the network and check the installation.
w Make sure that terminal 'D' is not short circuited to terminals '–' or '+'.
w Make sure that terminal 'D' has not been exchanged with 'A' in a part of the system.
O Audio volume inadequate.
w Adjust audio levels following the instructions indicated on
the volume until it disappears. If the feedback disappears only b
minimum level, probably another problem exists.
O Persisting audio feedback
w Make sure that terminal 'A' is not short circuited to any other terminal and that it has been properly
connected.
O Door opening function cannot be activated.
w Remember that this function can be activated only during calls and communication.
w Make sure that the JP1 jumper located in the rear part of the door panel is in a correct position (see page
65).
w Make sure that the connection has been carried out acccording to the type of lock release installed (see
pa
ge 80).
w Make a short circuit between door panel terminals 'CV1' and 'CV2'; in this moment the value
between the lock release terminals should be 12Vd.c. or a.c. (According to the door panel
configuration, see
OThe lock release remains enabled.
w If you are using an alternative current door opener, check its connection by means of the diagram
shown on
page 80.
O The device cannot be programmed.
w Make sure that number 2 in the configuration switch is set to ON (see pag
program sequence is correct (see pag
w Make sure that terminal 'D' is not short-circuited to any other terminal
O Some monitors (phones) do not receive calls.
w Remember that each house must be equipped with a unique main terminal. Make sure that the
terminal has been properly programmed and that it is on.
w Make sure that the master monitor or phone is on.
OThe monitor does not show images.
w Make sure that number 4 in the configuration switch is set to OFF (see pa
w Check the proper connection of coaxial cable or twisted pair by means of the diagrams shown on
pag
es 81 and 84.
OThe monitor shows a distorted or a low-defined image.
w Check the proper connection of coaxial cable or twisted pair by means of the diagrams shown on
pages
81 and 84, p
page 80). In suc
h a case, check lock release condition.
es 72, 74 and 78)
ay particular attention to the cable correct polarity.
page 66. In case of feedback, reduce
y reducing volume to a
e 65) a
.
ge 65).
89
nd that the