17
Symptom
Cause/solution
Reference
pages
Audio input contains
noise.
• Check the following.
• Grounding of the camera, a switching hub or
peripheral 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
system, 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
When the IR LED
lights, a part or all of
the screen appears
blurred.
• Is there a wall or other reflecting surface or object
near the camera (including areas not displayed in
images)?
Adjust the camera angle so that light from the IR LED
is not reflected.
Operating
Instructions
(included in
the
CD-ROM)
When the IR LED
lights, the camera
switches between
color mode and
black-and-white
mode.
• The subject may be too close to the camera.
Adjust the distance between the camera and the
subject.
Operating
Instructions
(included in
the
CD-ROM)
