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User Manual of DS-91/90HFI-ST/RT/XT & DS-81/80HFI-ST & 91/90/81HWI-ST Series DVR
FAQ
•
Why does my device make a beeping sound after booting?
The possible reasons for the warning beep on the device are as follows:
a)
There is no HDD installed in the device.
b)
The HDD is not initialized.
c)
HDD error
To cancel the beeping sound and use the device without HDD, enter the Exception Settings interface. For detailed
information, see Chapter Handling Exception.
•
Why does the device seem unresponsive when operating with the IR remote control?
Please read through the section Using the IR Remote Control, and check:
a) The batteries are installed correctly in the remote, making sure that the polarities of the batteries are not
reversed.
b) The batteries are fresh and are not out of power.
c) The remote has not been tampered with.
d) There are no fluorescent lamps in use nearby.
•
Why does the PTZ seem unresponsive?
If the PTZ seem unresponsive, please check:
a) The RS-485 cable is properly connected.
b) The dome decoder type is correct.
c) The dome decoder speed configuration is correct.
d) The dome decoder address bit configuration is correct.
e) That the main board RS-485 interface is not broken.
•
Why is there no video recorded after setting the motion detection?
If there are no recorded video after setting the motion detection, please check:
a) The recording schedule is setup correctly by following the steps listed in Configuring Record/Capture
Schedule.
b) The motion detection area is configured correctly (See Configuring Motion Detection).
c) The channels are being triggered for motion detection (See Configuring Motion Detection).
•
Why doesn't the device detect my USB export device for exporting recorded files?
There's a chance that the device and your USB device is not compatible. Please refer to our company's website to
view a list of compatible devices.
•
My device is in Live View mode and the menu does not show up. It does not respond to the mouse, the
front panel, the remote or keyboard.
Your device may be in auxiliary mode. This occurs when the Main/Spot button is pressed on the front panel. To
return to the previous mode of operation, press the Main/Spot button again and then press Enter button on the
front panel.
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