There are following possibilities:
⚫ Burner and DVR are in the same data cable.
⚫ System uses too much CPU resources. Please stop record first and then begin backup.
⚫ Data amount exceeds backup device capacity. It may result in burner error.
⚫ Backup device is not compatible.
⚫ Backup device is damaged.
17. Keyboard cannot control
DVR. There are following
possibilities:
⚫ DVR serial port setup is not correct
⚫ Address is not correct
⚫ When there are several switchers, power supply is not enough.
⚫ Transmission distance is too far.
18. Alarm signal cannot been
disarmed. There are following
possibilities:
⚫ Alarm setup is not correct.
⚫ Alarm output has been open manually.
⚫ Input device error or connection is not correct.
⚫ Some program versions may have this problem. Please upgrade your system.
19. Alarm function is null.
There are following possibilities:
⚫ Alarm setup is not correct.
⚫ Alarm cable connection is not correct.
⚫ Alarm input signal is not correct.
⚫ There are two loops connect to one alarm device.
20. Remote control does not
work. There are following
possibilities:
⚫ Remote control address is not correct.
⚫ Distance is too far or control angle is too small.
⚫ Remote control battery power is low.
⚫ Remote control is damaged or DVR front panel is damaged.
21. Record storage period is not
enough. There are following
possibilities:
⚫ Camera quality is too low. Lens is dirty. Camera is installed against the light.
Camera aperture setup is not correct.
⚫ HDD capacity is not enough.
⚫ HDD is damaged.
22. Cannot playback the downloaded
file. There are following possibilities:
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