5
2.3
CAMERA TOP,
continued
8.
Function Switches
– This compartment houses
switches for camera operation. A switch is in the ON
position if it is positioned toward the front of the
camera. If the position is set toward the back of the
camera, the switch is OFF. The switches include:
•
AGC Switch
– The auto gain control switch
allows the video signals to maintain a constant
level. This switch is useful when using the
camera at low-light levels and when lighting
levels change over time.
•
GAM Switch
– The gamma correction switch
allows .45 correction for non-linearity gain
response in the monitor when set to ON. When
set to OFF, there is no gamma correction.
•
A/I Switch
– The auto iris switch allows the user
to select the supplied auto-iris control signal for
the lens. Position the switch toward the front of
the camera to choose DC when the auto-iris
control lens requires dc control signal. Position
the switch toward the back of the camera to
choose Video when the auto-iris control lens
requires video signal.
•
F/F Switch
– The flicker free switch allows the
user to remove flicker, which occurs when the
camera format does not coincide with the power
source frequency being used.
•
E/I
– When set to the ON position, the electronic
iris switch automatically varies the camera’s
shutter to mimic auto-iris control, allowing fixed
or manual iris lenses to be used in a wider
range. When this switch is set to ON, turn OFF
the F/F switch.
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