Samsung SCC-643 Owner's Instructions Manual page 20

If your press the left/right keys continuously, the speed will appear in the
following order.
Order
OFF 1/100(1/120)
1/4000 1/10K OFF
AUTOX8 AUTOX12
AUTOX48 AUTOX64
FIX X2 FIX X4 FIX X6
FIX X24 FIX X32 FIX X48
AGC
In the AGC menu, you can specify whether to automatically control the
GAIN when the obtained video is below a certain level of brightness.
To automatically control the GAIN, set the AGC menu to LOW/HIGH.
Otherwise, set it to OFF.
If the you set the AGC to LOW, the maximum GAIN of the AGC will be set
to low, and if set to HIGH, the maximum GAIN will be set to high.
Under low light conditions, SHUTTER Mode change from AGC to
MOTION (AUTO Mode). In the MOTION, use the [left, right] keys to select
"S.S/SLOW/NORMAL/FAST/F.F".
(VIDEO SET)
IRIS
SHUTTER
AGC
WHITE BAL
SPECIAL
AUTO FOCUS
D-ZOOM
EXIT
S.S
This maximally enhances the resolution of a still image by selecting the
lowest value for AGC GAIN and the slowest speed for SHUTTER SPEED.
(This is used mainly to monitor inanimate objects in dark places.)
3-10
1/250 1/500 1/1000 1/2000
AUTOX2 AUTOX4 AUTOX6
AUTOX16 AUTOX24 AUTOX32
AUTOX96 AUTOX128 OFF
FIX X8 FIX X12 FIX X16
FIX X64 FIX X96 FIX X128
ALC...
OFF
LOW
ATW
OFF
ONEAF
OFF
QUIT
SLOW
This enhances the resolution of a still image by selecting a low value for
AGC GAIN and a slow speed for SHUTTER SPEED.
(This is used mainly to monitor inanimate objects in dark places.)
NORMAL
This shows the normal picture by selecting a medium value for AGC GAIN
and the normal speed for SHUTTER SPEED.
(This is used mainly to monitor moving objects in dark places.)
FAST
This focuses on the moving object by selecting a high value for AGC
GAIN and a high speed for SHUTTER SPEED.
(This is used mainly to monitor objects moving conspicuously in dark
places.)
F.F
This focuses on the fastest moving object by selecting the highest value
for AGC GAIN and the fastest speed for SHUTTER SPEED.
(This is used mainly to monitor fast moving objects in dark places.)
E
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