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Connection/installation, E-20, Lens adjustment – JVC TK-C1481 User Manual

Page 20

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E-20

CONNECTION/INSTALLATION

Lens adjustment

ALC

LEVEL

Av Pk

L H

Connect the camera according to the connection method, turn it on, display an image on the
monitor, and check the image. The camera has been factory-adjusted to the best position, but
it may need to be adjusted according to the object conditions or combination of lenses. If the
image is unnatural, adjust it as follows: (Also read the instruction manual of the lens.)

• LEVEL adjustment

Monitor screen

LEVEL turning direction

Too bright

Counterclockwise (Toward L)

Too dark

Clockwise (Toward H)

MEMO

• If the sensitivity adjustment LEVEL is

turned excessively to L, the sensitivity in-
creases because of the AGC function of
the camera, and the image looks grainy.

• If the video iris lens is set to too low a level,

malfunction such as the hunting phenom-
enon, in which the iris opens or closes
unintentionally, may occur.
In such a case, first set LEVEL potentiom-
eter on the lens to the H (iris open) posi-
tion then adjust it to the optimum level.

LEVEL
adjustment

ALC adjustment

(Does not operate.)

MEMO

Note that the lens cannot make ALC adjust-
ments. Make ALC adjustments using the item
AVERAGE: PEAK on the menu.
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