Reference
61
Symptoms
Resolutions
Audio data recorded with
video data is not playing.
Check the audio recording option is correctly set for the camera you wish to record
audio.
Check the speaker and audio (line input) on the rear of system are connected correctly.
Check the connected speaker is working properly.
The colors of some camera
videos are strange or videos
are displayed abnormally.
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 the same as the 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.
There is a lot of (screen) noise
accompanying the image.
Check if the video signal output from the camera has a problem. Ensure the camera is
not damaged by trying another camera with a working video output.
Check if the video cable connection between the camera and the DVR is cut, cross-
wired or shorted.
Check if there is a high voltage wire around the video cable connection between cam-
era and DVR system. It can cause interference and affect video quality.
Check the video cable connection between the camera and the DVR system is the cor-
rect video cable. When a normal power-supplying cable is used instead of the video
cable, screen noise can be generated.
The connected sensor is not
operating.
Check the type of sensor in the camera setting is the same as with the connected sen-
sor.
Check the system is set to use the sensor in the recording schedule window in the
recording setting menu.
Check the sensor is properly connected to the ALARM-IN.
The connected PTZ camera is
not operating.
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 a normal user.
