50
Local Video appears blurred.
Possible reasons:
• The video quality is set too low.
• The program data reads incorrectly; reboot the DVR.
• The hard disk is damaged.
• The DVR hardware is damaged.
No audio signal in the surveillance window.
Possible reasons:
• Camera does not support audio.
• Camera’s audio is damaged.
• The DVR hardware is damaged.
There is audio signal in the surveillance window but no audio signal when playback
Possible reasons:
• The audio option is not selected.
• The corresponding channel is not connected with the video. When the image appears as a blue
screen, the playback will be intermittent.
The time display is wrong.
Possible reasons:
• The setting is wrong.
• Internal batteries are not properly connected or the voltage is too low.
DVR can not control the PTZ.
Possible reasons:
• The PTZ camera is not connected correctly.
• The baud rate, address, and protocol settings of the front-end PTZ and device PTZ are
inconsistent.
Motion detection is not working.
Possible reasons:
• Time is not set correctly.
• The motion detection area is not set correctly.
• The sensitivity is too low.
No image or poor quality video when in Live view or when playing back recorded files.
Possible reasons:
•
Too much data is flowing on the network (too many users logged into the system).
• The logged in user does not have permission to preview video.
• Camera not connected properly (not transmitting data correctly).
• Connection issues between camera and DVR.
