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Operating precautions – JVC TK-C1481 User Manual

Page 7

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● 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.