20
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 power line (lamp line)
of AC100 V or more.
• 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.
The power cable
insulation is dam-
aged.
• The power cable and connectors are worn out.
This may result in electric shock or a fire.
Unplug the power cable from the AC outlet immedi-
ately, and refer to qualified service personnel.
−
The power cable,
plug and connectors
get hot during use.
The power cable gets
hot when bent or
stretched.
