GB / IE - 9
Troubleshooting
Fault
No image is displayed, the
operating status LED does no
light
Nothing happens after pressing
the doorbell button, “NO SIGNAL”
is displayed on the monitor after
pressing the Monitor button and
the operating status LED lights red
“NO SIGNAL” is displayed on the
monitor after pressing the Monitor
button or the doorbell button and
the operating status LED lights red
No image is displayed after
pressing the doorbell button, the
LED display lights green
A whistling sound can be heard
The image is displayed in black
and white and maybe flickering
Dark monitor image during twilight
/ darkness
The image is also too dark during
daylight
The monitor image displays a
bright background, however the
visitor is displayed dark
No sound
Remedy
Check the power supply
Remove the fuse holder [52] from the rear
side of the indoor station and replace the
fuse with an equivalent one (1 spare fuse is
supplied)
Correct the polarity of the connection
Check the connection and polarity
Use a suitable cable (wire cross section at
least 0.75 mm², max. length 75 m)
Check the connection and polarity
Change the settings in the settings menu
Place the indoor and the outdoor stations
further apart from each other
Reduce the volume on the indoor station
Regulate the volume on the indoor station
Check the power supply
Correct the polarity of the connection
Switch the monitor on and off using the
Monitor button
[38]
Set the system to PAL
Arrange additional lighting
Change the mounting height of the indoor
station or adjust the monitor brightness
Install additional lighting or change the
installation location of the outdoor station
Cause
The power supply is interrupted
The fuse has blown
The connection between the outdoor
station and the indoor station has been
interrupted
The polarity of the connection between
the outdoor station and the indoor
station is not correct
The volume on the indoor station has
been set too low
The power supply is interrupted
The polarity of the connection between
the outdoor station and the indoor
station is not correct
The connection between the outdoor
station and the indoor station has been
interrupted
The cable is too long or its cross
section is too small
The settings cause a “black” image
It is produced by acoustic feedback
The video signal is not switched
correctly
The wrong video system has been set
The outdoor station needs additional
light in order to be able to display a
good image
Your viewing angle to the monitor is
unfavourable
There is too much backlighting in the
background
