bell
issimo
1 Way Video Entry System
PD-097 Issue 4
Installation and Operating Manual
Page 22 of 40
Lock Release Problems
Lock release does not operate
or clicks but does not open.
Connections to Lock Release are open or shorted.
Voltage drop due to cable too thin.
Lock current is too high; Power supply is resetting.
Lock release jammed due to over tight fitting.
Maglock does not hold
strongly.
Voltage drop due to cable too thin.
TEST:
Press ‘
Test’
Button on Door
Controller (when system idle):
Confirm ‘LOCK’ LED illuminates for 3 seconds.
Check Output Voltage at LOCK terminals.
Lock release operates all the
time or in reverse.
Check fail safe/fail secure SW2-4 selection matches
the lock type.
Normally closed switch has been used for exit button.
Lock operates from the exit
button but not the test button
or phone.
Normally closed switch has been used for exit button.
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 17
Call is from an audio only panel.
No picture when calling videophone.
Check Auto display switch is on. See page 20.
No picture when pressing
view
for
CCTV mode.
Another videophone in use.
No entrance has SW2-8 s
et to ‘Enable’.
Same entrance needs SW3 1-4 set all ON.
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 18.
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.
