Hard disk recorders common fault solution

In the course of using a daily PC-type hard disk recorder, it is inevitable that you will encounter some failure phenomena. For some common fault problems, it can be solved through some simple computer operations. Some common troubleshooting methods are listed below.

1. What is the cause of jitter in the monitor display?

Answer: This situation is generally caused by the display refresh rate setting is too low, enter the "Display Properties", click "Settings", select "Advanced", then select "Monitor", adjust the new frequency to 75HZ, determine the exit This can be solved.

2. Why does the monitor appear to have a screen saver or a black screen when the monitor is turned on for a period of time?

Answer: This situation is caused by the absence of canceled screen protection or improper power management settings. The solution is to exit from the monitoring system to the WINDOWS operating system interface, right-click on the interface, select "Properties", select the screen protection in the appearing tab, select (none) to cancel the screen saver. Then click on the settings button in the lower right corner, select "Always open" in the power scheme, the system waits to select "never", close the monitor and select "never", "close the hard disk" where "never", and finally click "OK" can be.

3. How can I solve the problem of a crash that cannot be looped or recorded after the video is recorded?

Answer: First of all, carefully read the instructions for use of the host computer to confirm whether the video recording mode is set to "one record" or "recycle video". Second, this situation is likely to be related to the tools used by the hard disk partition. It is recommended not to use any hard disk partitioning tools. WINDOWS98 is best used to partition using the FDISK partition command. WINDOWS 2000 uses its own partitioning tool for partitioning.

4. Why does the monitor appear to have a screen saver or a black screen when the monitor is turned on for a period of time?

After exiting to the operating system interface, right-click on the interface, select Properties, select Screen Saver in the tab that appears, and select (none) to deactivate the screen saver. Then click on the settings button in the lower right corner, select "Always open" in the power scheme, the system waits to select "never", close the monitor and select "never", close the hard disk and select "never" and then OK.

5, why boot no display?

Make sure the chassis and monitor are properly connected and the power is connected and turned on. In the process of transportation and moving, the body may loosen the internal card accessories. It is better to open the chassis before starting the machine and confirm that the components are plugged in and then turned on. If the main board self-test is abnormal during startup (normally, the keyboard indicator LED flashes once and the host buzzer emits a “beep” sound), please turn off the power and check whether the CPU board and the video card are fully inserted, and remove the board. Plug in again. If you press the power switch and the CPU fan does not turn and the panel power indicator does not light, check that the power supply is connected correctly.

6. What's wrong with video playback quality?

For our hard disk recorders under "normal" compression quality, the video playback quality is satisfactory. But sometimes the "mosaic" phenomenon is found to be serious. Especially for moving images, the image becomes blurred. The main reason is that your camera's brightness is too low (do not attempt to change the brightness of the hard disk recorder to compensate). Adjust the brightness of the camera to compensate. This should pay special attention to the construction of the project.

7. What should I do if the monitored image is not clear?

In the system setting of the digital hard disk recorder, "common camera" or "high definition camera" can be selected according to the model or the resolution of the configured camera; at the same time, the brightness, chroma, contrast and saturation of the video can also be adjusted. Value to achieve satisfactory results.

8. What image is still?

It may be that the audio and video card is dead. It may be that the audio and video card is not in good contact with the PCI slot of the computer. You can turn off the computer and restart the computer. If there is a more frequent dead card phenomenon, you can consider changing the card; if not very often The situation may be because the system working time is too long, you can set the system to restart at regular intervals to relieve the system working pressure and release the memory; you can also add a reset line connected to the computer on a certain card of the system to achieve automatic recovery. The purpose of the system.