JVC VN-H657U Instructions Manual page 10

Hd ip ptz camera
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Copyright Protection
With the exception of the user being the
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copyright holder or when permission such as for
duplication has been granted by the copyright
holder, permission is required in principle for the
duplication, modification, or transmission of
copyrighted video and audio data.
Unauthorized duplication, modification, or
transmission of copyrighted material may
constitute a copyright infringement, and the user
may be liable to compensate for any damages.
When using copyrighted video/audio data, be
sure to check the license agreement of the
copyrighted material thoroughly.
When rights or rights holders are involved with
regard to the targeted duplicating subject,
permission may be required for shooting or
using (processing) it. Be sure to check the
licensing conditions thoroughly.
Copyright
Please note that broadcasting materials
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recorded with this camera for profit or for the
general public to watch may violate the author's
rights protected under copyright law.
Use of recorded materials without prior consent
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from the author is forbidden under copyright law
except in limited, specific instances.
Maintenance
Turn off the power before performing
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maintenance.
Wipe using a soft cloth.
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Wiping with thinner or benzene may melt or
tarnish its surface. For tough stains, wipe using
a cloth that is dipped into a neutral detergent
diluted with water, followed by wiping with a dry
cloth.
When the same position is monitored
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continuously over a long period, the increased
contact resistance on the horizontal rotation
section may cause noise interferences in the
images and operation from the computer may
become unstable. As such, this product is
equipped with an auto cleaning function that
performs cleaning once a week.
Disclaimer
We shall not be responsible for any losses
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incurred in the event of privacy invasion caused
by the camera footages of this product.
Saving Energy
If the camera is not to be used for a long time,
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turn off the power of the system for safety and
energy conservation reasons.
Precautions
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Auto Focus
Auto Focus operation can be performed on this
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product after the PTZ (pan/tilt/zoom) operation
stops.
For more details, refer to "Easy AF" on the [PTZ
Control] page.
(A P60 [ [PTZ Control] ] )
The Auto Focus function on this product may not
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be able to achieve focus depending on the
camera setting, subject, and light condition. In
this case, please adjust the focus manually.
Objects which are difficult to be focused
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automatically
When the brightness of the image plane is
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extremely high (bright)
When the brightness of the image plane is
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extremely low (dim)
When the brightness of the image plane is
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constantly changing (for example, a blinking
light)
When there is almost no contrast
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When there are repetitive vertical striped
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patterns on the image plane
Auto Focus is difficult to set under the following
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conditions
When sensitivity is increased with AGC and
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the screen is grainy
When there is less movement on the screen
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due to the Sense Up function.
When there is no clear contour in electronic
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zoom
Zoom Operation
The following phenomena are the results of the
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built-in lens performance and are not
malfunctions.
When manual operation or preset is selected,
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focus moves slightly after the zoom operation
has stopped near the TELE edge.
Manual zoom operation is not smooth.
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When Preset is selected, the camera
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becomes out of focus for an instant during
zooming.

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