JVC TK-C1481 - Manual (Page 7)

E-7
● To save energy, when it is not being used
turn the system’s power off.
● This camera has been designed for indoor
use. When you use it outdoor, be sure to
use a housing and the like.
● Do not install or use the camera in the
following places.
• In a place exposed to rain or moisture.
• In a place with vapor or oil soot, for
example in a kitchen.
• When the ambient temperature rises
above or falls below the acceptable
range (from –10°C to 50°C).
• Near a source of radiation, X-rays,
strong radio waves or magnetism.
• In a place subject to vibration.
• In a place with excessive dirt.
● If this camera and the cables connected
to this camera are used where there are
strong electromagnetic waves or where
there is magnetism present, for example
near a radio or TV transmitter, power
transformer or an electric motor, the picture
may produce noise and the colours may
be affected.
● This camera incorporates an AGC circuit.
As a result, when it is used under low light
conditions, the camera sensitivity is
automatically boosted and the picture may
look uneven. However, this is not a
malfunction.
● When this camera is used in the ATW
mode, the recorded colours may be slightly
different from the actual colours due to the
operational principles of the auto-tracking
white balance circuit. However, this is not
a malfunction.
● If a high-intensity object (such as a lamp)
is shot, the image on the screen may have
vertical lines (smear) or blur (blooming)
at its periphery. This is a characteristic of
the CCD, and is not a defect.
Operating Precautions
● Observe the following when carrying out
camera maintenance.
• Turn the power OFF before proceeding
to carry out maintenance.
If it is contaminated seriously, clean the
contaminated part with a cloth (or a
tissue) which has been soaked in a
solution of water and a neutral detergent.
● TK-C1480U and TK-C1480E
The unit is to be powered by a DC 12 V or
an AC 24 V power supply.
The AC 24 V power supply should conform
to the following:
TK-C1480U Class 2 only
TK-C1480E Isolated power supply only
TK-C1481EG Connect the power cable
to the commercial power supply of 230V.
● Caution for operating the video iris lens
In case the video iris lens is set to an
extremely low level, malfunction – such as
the hunting phenomenon in which the iris
opens or closes unintentionally – can
occur.
In such a case, first set the “LEVEL”
potentiometer on the lens to the H position
(iris open), and then adjust it to an optimum
level.
● A CCD is made by high technology,
boasting an exceptionally high level of
precision with an effective pixel of more
than 99.99%. Although there is a less than
0.01% pixel defect (whitish flaw, blackish
flaw), this does not mean that the CCD is
out of order.
● The cable stopper on the terminal block
can come off sometimes. Therefore, be
sure to take enough time and fix the cable
securely.
● When a highly bright subject is shot,
sometimes undulations can be observed
on the ver tical lines of the subject.
However, this phenomenon is peculiar to
the unit and is not a sign of malfunction.