CP Plus 4/8/16 Channel DVR User Manual page 95

Check the power cord; is it properly connected to the power source?
Check the on/off switch – is it turned on?
Check the upgrade procedure.
Check the main board of the DVR – do all of the indicators indicate that the settings
are correct?
2. What should be done if the DVR is rebooting automatically or has stopped midway
through starting up?
Check for the following problems:
Unstable or low input voltage.
The connection to the hard disk drive is unstable or dysfunctional.
The power supply is insufficient.
Excessively high or low temperature, too much dust, or other physical factors that
could affect the DVR's ability to operate.
The motherboard is not well-connected with other boards.
The hardware of the DVR is defective – take the device to a certified technician to
have it examined.
3. What if there is no output of single-channel, multi-channel or all-channel video?
Check the adapter of the camera to make sure it is securely connected.
Check the cable for connecting video input/output in the back panel of DVR to
make sure it is securely connected.
Insert the video source directly into the display device and check if the video source
is causing the problem.
Check the brightness of the picture and restore the original default setting.
Check to see if there is no video input signal or if the video input signal is too weak.
Make sure the display settings have been configured correctly.
The hardware of DVR could be defective – take the device to a certified technician
to have it examined.
4. What if the DVR cannot record after startup and the interface is showing "
Make sure power adapter is a DC-12V.
Make sure HDD has been properly formatted.
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