Troubleshooting - Bellcome SET VIDEOTÜRSPRECHANLAGE advanced Benutzerhandbuch

Make sure that the Torx screw of the Outdoor panel is completely screwed to prevent turn
ing on the anti-theft alarm.
Connect the Supply control unit to the 230 V AC network, by connecting the two automatic 10A
fuses, installed on phase and null.
Optionally, connect the accumulator to the +ACC and –ACC terminals of the Supply control unit.
PAY ATTENTION to the polarity of the accumulator!
Check the existence of the supply tensions with the values mentioned below, at the terminals
of the Supply control unit (use a direct current voltmeter)
Tensions measured at the terminals of the Supply control unit :

Tensions measured at the terminals of the Outdoor panel and at the terminals of the

Terminals:
6.3 Checking the functions and adjustments
Check anywhere in the installation, during the call and the communication, and make sure
that the +14V – GND and +Uv – GND supply tension is higher than 12,0V.
Check the functions of the Terminals and of the Outdoor panel: call, communication, access,
audio and video monitoring. The system is adjusted by the producer in what concerns the
audio part, for standard functioning conditions.
How to adjust the audition level of the video Terminal:
Through consecutive touches of the VOLUME key, different audition levels are obtained: OFF
(mute) – red LED, MEDIUM white-red LED, MAXIMUM – white LED
After checking leave the Terminal on open volume position (white LED on).
How to adjust the image characteristics on the video Terminal:
If due to the type of system (type of cable) the image on
display is not qualitative, successively adjust (on the back
of the Terminal) until the maximum result is obtained,
in the following order:
1. Impedance adjustment;
2. Luminosity;
3. Chrominance.

6.4 Troubleshooting

Any intervention in the system will be made with the system disconnected from
the 230V AC supply network (the phase and null fuses are opened) and from the
accumulator (the +ACC terminal is disconnected).
No. Problem
The system functions
0
correctly
+ 14V - GND min. 12 V DC
+ Uv - GND min. 12 V DC
Signaling
Control unit:
S1: green
S2: green
PROG:
+14V – GND /13,8 ... 14,3V DC
+Uv – GND /13,5 ... 14,3V DC
anywhere in
the system
If necessary,
adjust the image of the Terminal :
• In case of an unclear image, adjust:
IMPEDANCE ADJUSTMENT 6
• For color or brightness, adjust
CHROMINANCE 4
LUMINOSITY 5
Possible causes
EN
Solutions
12/17