Page 26/28
3.
Why the images are distorted?
①
Check whether the video connection is short circuit or open circuit, or has false welding or poor connection;
②
Video cable is interfered with by strong electricity; do not install the video cable and the strong electricity circuitry
together and also choose qualified shielded cable;
③
In the whole system, connect only the center DVR to earth;
otherwise, it will cause common mode interference; connect the grounding screw at the rear side of DVR to earth;
④
Check whether the DVR, monitor or the circuitry is aged.
(III) Video recording/playing, recording data, backup
1.
Why the recording has no audio?
①
Check whether “Mute” is activated;
②
Check whether “Audio” is selected in the settings of video recording;
③
Check the audio input cable.
2.
Why I can’t perform timing recording or can’t record any data within the period?
①
The period of timing recording is invalid. The time points should be within 00:00-24:00 and the end time must be
later than the beginning time;
②
The power supply is cut off in the timing recording process;
③
The desired data
have been overwritten;
④
The HDD has physical damage or logical error and the data can’t be read normally.
3.
Why I can’t perform moving recording or alarm recording?
Содержание DVR4Lite
Страница 1: ...Optiview USA DVR4Lite Manual...
Страница 3: ...Page 3 28...
