Samsung SCP-3120 User Manual page 89

Problem
Digital noise appears in picture.
Picture's colors are not good.
The picture is fl ickering.
Afterimages appear in picture.
Camera switches between color
and B&W modes frequently.
A circular object appears on
screen when the camera is
pointing straight down.
Pan, tilt, zoom, and/or focus do
not work.
Cause and Solution
Check if the video cable is properly connected.
Make sure that the power cable and video cable
do not exceed the recommended maximum
lengths.
Adjust Sharpness level.
Check the White Balance.
Check if the dome cover or the camera lens is dirty
or smudged. If it is, clean the dirt off.
Check if the camera is pointing directly at a
fl uorescent light or sunlight. If so, change the
camera's direction to remove the fl ickering.
Check Sens-Up settings.
Adjust Dwell Time in Day & Night menu.
You are seeing a pinpoint-like injection artifact on
the dome cover.
The camera is functioning normally.
Check if power cable is securely connected to
the camera and the monitor.
Check if the video cable is properly connected.
Consult the operation manual of the system
controller connected to the camera.
Check if Pan Limit and/or Tilt Limit are set.
If so, remove the limit(s).
A motor or the lens may be overheated.
If so, contact your service personnel or system
provider for assistance.
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English English _ 89