4.2 Internal
(a) Lens hood
(b) IR LED board ASS'Y
(c) Focus adjustment knob
(d) Zoom adjustment knob
(e) Iris level adjustment potentiometer
(f)
Function switch (4 pin)
(g) Light sensor for IR LEDs
(h) Video sub-out
Switch Description
SW Name
ON (down)
1
ELC/ALC
ELC: Elec. shutter mode
2
BLC On/Off Back light compensation ON
3
Flickerless
Flickerless ON
On/Off
Shutter is fixed to /0sec.
4
N/A
for future usage
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%.
g
a
b
c
d
e
f
h
OFF (up)
ALC: Auto iris lens mode
Back light compensation OFF
Flickerless OFF
(at 50Hz mains frequency)
6
Rem.
OFF
OFF
OFF
OFF