TROUBLESHOOTING HINTS
An easy way to check that the system is working properly is to disconnect the wiring from the door panel
and to check the monitor directly connected to the sound module.
No shortcircuit will damage the connected units, with the exception of a shortcircuit between CTO and ' '
–
monitor or distributor terminals.
O
Nothing operates.
w
–
Check the output power supply voltage between ' ' and '+' terminals: it should have 17,5 to
18,5Vd.c. If not, disconnect the power supply from the installation and measure again. If it's
correct now, it means there is a short circuit in the installation: disconnect the power supply
from mains and check the installation.
w
–
Check that 'D' terminal is not shortcircuited with ' ' or '+' terminals.
w
Check that 'D' terminal hasn't been changed by 'A' terminal somewhere in the installation.
O
Inappropriate audio level.
w
Adjust the level volumes as shown on page 90. In case of feedback, reduce the audio levels until
feedback fade out. If feedback don't dissapears refer to the following hint.
O
Continuous audio feedback.
w
Check that 'A' terminal is not shortcircuited with other terminals.
O
Door open function no operates.
w
Remember that this function is only available during call and communication progresses.
w
The CV1 and CV2 terminals for door opening are voltage free outputs. The cable requires a
connection depending on whether 12Vdc
or 12Vac
is needed.
(page
to
)
(page 105
93 104
)
w
Make a short circuit between the 'CV1' and 'CV2' terminals on the
; there should
sound module
be12V (d.c. or a.c. depending on the type door release installed) between the terminals on the
door release. If so, check the lock release and its wiring.
O
The system cannot be programmed.
w
Check that the switch number 2 of the SW2 configuration dip switch is set to ON (see page 86)
and that the programming steps are correctly followed.
w
Check that 'D' terminal is not shortcircuited with other terminals.
O
Some units don't receive calls.
w
Remember that each apartment must have a master unit only. Check that the units are switched on
and correctly programmed.
O
There are no video image.
w
Check the number 4 of the dip switch SW1 of the module 632 Plus P/T is in OFF (see page 85).
w
Check there is supply in the distributors, the voltage between '+' and '-' terminals should have 15
to 18 Vd.c.
O
Push buttons don't work.
w
Check that pressing the push button the door panel reproduce an acoustic confirming tone, if
not check the wiring and configuration of the push buttons (pages 81 to 82).
w
If confirmation of pulsation exists, check the monitors or telephones programming on
corresponding monitor / telephone manual, (see page 74 for manual web link).
107
108
NOTAS/NOTES
