Bell System bellissimo, Installation & Operation Manual

Page: 25 / 44

bell
issimo
2-72 Way Video Entry System
PD-098 Issue 4B Installation and Operating Manual Page 25 of 44
Video Problems
Blank picture when: -
Calling videophone or
Pressing
view

Broken or missing Video + or Video
– wire.

Cameras incorrectly configured refer to SW2-6
settings on page 18

Call is from an audio only panel.
No picture when calling videophone

Check auto display switch is on. See page 22
No picture when pressing view

CCTV not available on Multiway systems.
Pressing view locks up system

Ensure SW2-8 is OFF, see page 18
Repeated pressing of view does not
select cameras in sequence as
expected.

Check SW2-6 at all entrances is set for correct
number of cameras at that entrance

Check settings for SW3 if SW2-7 is enabled

See section ‘Global View’ on page 19
Unstable picture

Power supply voltage low.

Terminator switch not set on last videophone.

Too many terminator switches set on.

Video gain jumper set to high on a short run.

Very bright area in background upsetting
camera.
Unstable picture possibly with areas
looking like a photographic negative.

Video + and
– reversed, or M and S reversed.
Entrance cannot be seen at night

Power not connected to camera IR night
illumination. Connect 1 to + on camera.
Speech Problems
Loud tone at the entrance
speaker. (Acoustic
feedback)

Volume controls set too high

Broken Audio 1 or 2 wire in the cabling.

Intermittent or broken wire in Data A or B.

Videophone has reset; see the power faults table.

Check model 61 is hard against the panel with no gaps.

Check model 61 speech unit is the right way round and
that the microphone hole in the speech unit lines up with
the hole in the panel.
Low volume speech in one
or both directions

Adjust pot on 61 speech unit marked A and with a
speaker symbol for volume at the panel.

Adjust pot on 61 speech unit marked B and with a
microphone symbol for volume at the phone.

If volume cannot be increased in one direction without
feedback, the volume in the other direction may have to
be reduced as a compromise.

Check model 61 is hard against the panel with no gaps.

Check model 61 speech unit is the right way round and
that the microphone hole in the speech unit lines up with
the hole in the panel.
No speech from
videophone to entrance

Missing R core to door controller

Broken Audio 1 or 2 connections.
No speech from entrance
to videophone

Missing T core to door controller

Broken Audio 1 or 2 connections.