Precautions for embedded DVR

The audio input must use an active sound source such as a pickup or CD player. To ensure the quality of the input sound source, the active sound pickup should be kept away from the output audio amplifier. At the same time, the active sound pickup should not face the amplifier. In addition, the sound of the amplifier should not be too loud.
Under the menu operation interface of the DVR host, the back-end software cannot modify the parameters of the DVR host.
In the motion detection setting, the sensitivity parameter is set between 10-25, which can effectively detect moving objects.
After booting, automatic recording, network parameter setting (except monitoring and transmission method), VGA resolution, video format, and video occlusion. After modifying the parameters, the system will prompt the system to restart after the parameters take effect. After the other parameters are modified, press the "OK" button To exit the menu system and automatically save the parameter settings.
When the DVR host is recording, it is forbidden to format the hard disk.
The buzzer beeps during the start-up of the host. At this time, the system time may be read incorrectly. After the system is stable, please check whether the system time is wrong.
After the host starts, if there is a buzzing sound, it may be that the hard disk is not connected, the video input is incomplete, or the system time is wrong, please check the above three issues.
If the hard disk is not connected successfully and the hard disk error parameter is "display", the interface prompts "DISK ERROR", and the functional operations related to saving data to the hard disk cannot be performed.
If an unformatted hard disk is connected, the user will be prompted with hard disk status information on the interface when the host starts.At this time, you only need to enter the main menu to format the hard disk.
If the hard disk connected to the host is full and the "Automatic Video Overwrite Mode" function is not turned on. The message "Insufficient hard disk space, whether the video is automatically overwritten" is displayed on the interface, at this time, just click the "OK" button The recording is automatically overwritten, otherwise click the "Cancel" button to stop the recording.
When the video signal of a channel is lost, the interface of the channel will prompt "Video Lost".
When the channels 1 ~ 4 are in the 4-split screen state, you can use the 4-split key to switch the channels 5 ~ 8 to the 4-split screen state again, and so on to switch the channels 13 ~ 16 to the 4-split screen state.
It is forbidden to modify the system time during recording, which will cause errors in recording data.
Please do not open the search video menu during playback, this operation will cause the playback to stop.