8. Why can’t find any recording information when playback?
Answer: Kindly please check whether the connection of data line of hard disk
is good, whether the time of system is changed, whether the query condition
that is not set to save video files. If also have the question after restarting,
kindly please check whether the hard disk is damaged.
7.2 Maintenance
1. When NVR shutdowns, kindly please don’t turn off the power switch
directly, should use the shutdown button of system to avoid data loss or
damage of the hard disk.
Ensure NVR away from high temperature heat source and place.
Remove the dust deposited in the body timing, keep the good ventilation
around chassis, it is good for radiating.
4. About the audio/video signal line and RS-485 interfaces, kindly please
don’t hot swap, or these port will be damaged easily.
5. Check the HDD power cable and data cable of the NVR regularly and look
whether they are aging.
6. Avoid the audio/video signal affected by other circuits and devices as
much as possible, prevent the hard disk damaged by electrostatic or induced
voltage.
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