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Symptom
Audio data recorded
with video data is not
playing.
Color of some camera
videos are strange or
videos are shown
abnormally.
There are a lot of
(screen) noise on the
image.
The connected sensor
is not operating.
The connected PTZ
camera is not operat-
ing.
62
• Check the audio recording option is correctly set for the camera you wish to
record audio.
• Check the microphone and speaker port on the rear of system are connected
correctly.
• Check the connected microphone is working properly.
• Check the connected speaker is working properly.
• If the camera connected to the system has a problem, make sure that the
camera is not damaged by trying another camera into a working video output.
• Check the video format setting of the unit is same with connected camera's
video format. Depending on your region, the camera's video format can sup-
port either PAL or NTSC. Depending on the camera's video format, the video
process can differ greatly, therefore it can be difficult to recognize the video
data if the video format setting is different from the camera's video format.
• Check the video signal output from the camera has a problem, make sure that
the camera is not damaged by trying another camera into a working video out-
put.
• Check the video cable connection between camera and the DVR is cut, cross-
wired or shorted.
• Check there is a high voltage wire around the video cable connection between
camera and DVR system. It can cause a noise problem to decrease video
quality.
• Check the video cable connection between camera and DVR system is the
correct video cable. When a normal power-supplying cable is used instead of
the video cable, screen noise can be generated.
• Check the type of sensor in camera setting is the same with the connected
sensor.
• Check the system is set to use the sensor in recording schedule window in the
recording setting menu.
• Check the sensor is properly connected to the SENSOR-IN.
• Check the system is set to use the PTZ camera in the camera setting menu.
• Check the power cable of the PTZ camera is properly connected.
• Check the signal cable of the PTZ camera is properly connected.
• Check the selected channel to control the PTZ camera.
• Check the user type. The PTZ camera control is not available for normal user.
Resolution
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