16
Symptom
Cause/solution
Reference
pages
Audio input contains
noise.
• Check the following.
• Grounding of the camera, a switching hub or periph-
eral devices are not done.
• The camera is used near an electrical power line.
• The camera is used near a device which produces
strong magnetic field or radio waves (such as near a
TV/radio antenna, a motor of an air conditioning sys-
tem, a transformer, etc.)
When audio input still contains noise even after checking
the above possibilities, use a powered microphone or
connect audio output with low output impedance.
Installation
Guide
The focus can not be
automatically
adjusted.
227V2L
226V2L
225V3L
• In the following locations or with the following subjects,
the focus may not be able to be automatically adjusted.
In this case, manually adjust the focus from the setup
menu.
• When the subject moves a lot
• When there are large changes to the lighting intensity
• When the light level is low
• When the subject or location is extremely bright or
reflective
• When viewing through windows
• When the dome cover is in a locations where it can
easily become dirty
• Locations where there is not much contrast such as a
white wall
• When there is harsh flickering
Operating
Instructions
After installing the
enclosure, it may be
out of focus.
Depending on the installation environment, the opti-
mum focus position may change after the enclosure is
installed. In that case, carry out the auto focus function
from the setup menu.
Operating
Instructions
When the enclosure
is removed and the
camera is checked
on the screen, it
appears that there
are shadows in the
four corners.
Depending on the position of the shading rubber on
the lens, the shading rubber may appear in the viewing
screen.
When the enclosure is attached to the camera, the shad-
ing rubber returns to the correct position. This is not a
fault with the camera.
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