About the mode setting switch – TOA Electronics C-CV24-2 NTSC User Manual
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Mode Setting Switch
(Factory-preset setting)
OFF ON
Adjustment switch
Backlight Compensation switch
Shutter Speed switch
IRIS
F.ADJ
BLC
1/60 1/100
OFF ON
(NTSC) 1/60 1/100
(PAL) 1/50 1/120
OFF ON
OFF ON
OFF ON
OFF ON
OFF ON
OFF ON
8. ABOUT THE MODE SETTING SWITCH
Set the Mode Setting switch for the best possible picture reproduction depending on installation conditions.
8.1. Adjustment Switch
Set this switch when adjusting the lens focus.(Provides the same effect as when using the ND filter.)
Standard position :
Set to OFF after lens adjustment completion. Set to this position during normal use.
Adjustment position (during adjustment) :
Use this position when focusing the lens. If the focus is adjusted for a subject under
good lighting conditions, the subject may go out of focus when conditions become
dark. Set the Adjustment switch to ON only when performing focus adjustment.
Note: The color of the screen may periodically vary under fluorescent lighting when the
Adjustment switch is set to ON.
8.2. Backlight Compensation Switch
Set this switch so that the subject is not displayed in black when backlit.
Standard position :
Set to this position during normal use. Backlight Compensation function does not
operate when the switch is set to this position.
Backlight Compensation position (when backlit) :
This position prevents images from being displayed in black when the image is
backlit.
8.3. Shutter Speed Switch
Set this switch to the ON position when annoying screen image flicker is detected.
Standard position :
Set to this position during normal use.
Shutter Speed position :
Annoying screen flicker may result under fluorescent lighting in areas operating with a
power frequency of 50 Hz (NTSC) or 60 Hz (PAL). In such cases, set the Shutter
Speed switch to the ON position to permit a flicker-free picture to be viewed.
Note: If the Shutter Speed switch is set to the ON position, sensitivity is reduced compared
to operation in the OFF position. When using the camera in a dark location, or where
light flicker is not an annoyance, set the switch to the OFF position.