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4.3 Switch Description (VKC-1327A/W3, VKC-1327AW3-922, VKC-1327AW3-650
and VKC-1327A-IR/W3)
SW Name
ON (down)
OFF (up)
Note
1
INT / LL
Int. sync. mode:
Line-Lock mode:
2
ELC / ALC
ELC: Elec. shutter mode
ALC: Auto iris lens mode
3
BLC
Back light compensation ON
Back light compensation OFF
4
AGC TB
AGC Turbo ON
Max. AGC is 34dB
AGC Turbo OFF
Max. AGC is 8dB
5
FL
Flickerless ON
Shutter is fixed to /0sec.
Flickerless OFF
(at 50Hz mains frequency)
*
6
Sharp
Image is sharpened
Image is natural
7
Day-Night
IR cut filter OUT (automatic)
IR cut filter ON (for colour operation)
8
IR mode
High threshold to exit Night mode
Low threshold to exit Night mode
*
Notes:
*) Flickerless mode is useful in areas where AC mains is 50Hz and TV system is NTSC such like Japan or AC
is 60Hz and TV system is PAL to reduce the flicker under the florescent lights. When FL is set to ON, the low light
sensitivity is down about 30%.
*) IR mode ON reduces the possible iteration of filter switch (repeated IN-and-OUT) when sun rises or sets or in a
unexpected cases. (applicable to VKC-37 series only)
