13
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
able to be automati-
cally adjusted.
• 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.
• 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
