Video Output Flicker Problem
<p>[TOC]</p>
<h3>I. Problem Phenomenon</h3>
<h4>1、Some channels of video flicker</h4>
<p>Certain channels of camera input, the video appears flicker phenomenon.</p>
<h4>2、CVBS display flickering</h4>
<p>CVBS video output display, appears random flicker phenomenon.</p>
<h4>3、The display from time to time a short blue screen</h4>
<p>CVBS/VGA/HDMI display, occasional probability of a brief blue screen phenomenon, video status markers also appear at the same time a brief loss of phenomenon.</p>
<h3>II. Analysis steps</h3>
<h4>1、Some channel video flicker</h4>
<p>The following steps can be followed to troubleshoot the causes of the problem one by one:</p>
<ul>
<li>1.1. Check whether the camera is normal.</li>
<li>1.2. Check whether the camera extension cable is normal.</li>
<li>1.3. Check whether the equipment channel input is normal.</li>
<li>1.4. Check the prevalence of the problem for uniform batches of device.</li>
</ul>
<h4>2、CVBS display flickering</h4>
<p>The following steps can be followed to troubleshoot the causes of the problem one by one:</p>
<ul>
<li>2.1. Check whether the CVBS display is normal</li>
<li>2.2. Check whether other video output interfaces such as VGA are normal.</li>
<li>2.3. Check the prevalence of the problem in uniform batches of equipment.</li>
</ul>
<h4>3、The display does not regularly appear brief blue screen</h4>
<p>The following steps can be followed to troubleshoot the causes of the problem one by one:</p>
<ul>
<li>3.1. Check whether the video input is normal</li>
<li>3.2. Check whether the disk is normal.</li>
<li>3.3. Check whether the parameter settings are normal.</li>
<li>3.4. Check the prevalence of the problem in the same version of the software.</li>
</ul>
<h3>III. Operating instructions</h3>
<h4>1、Some channel video flicker</h4>
<p>1.1 Check whether the camera is normal</p>
<p>1.2 Check whether the camera extension cable is normal
See if the wiring of the extension is too small core (generally 0.15 square within 10 meters, 10-20 meters for 0.2 square, 20-50 meters for 0.3-0.4 square)</p>
<p>1.3 Check whether the equipment channel input is normal
Switching channel test verification.</p>
<p><img src="http://118.195.179.210:9000/server/index.php?s=/api/attachment/visitFile&amp;sign=5d2278a457fafd5a0798579b5e14e482" alt="" /></p>
<p>1.4 Check the prevalence of this problem for uniform batch devices</p>
<h4>2、CVBS display flickering</h4>
<p>2.1 Check whether the CVBS display is normal</p>
<p>2.2 Check whether other video output interfaces such as VGA are normal</p>
<p>2.3 Check the prevalence of the problem with the unified batch of equipment</p>
<h4>3, The display does not regularly appear a short blue screen</h4>
<p>3.1 Check whether the video input is normal</p>
<p>3.2 Check whether the disk is normal
At the <strong>DEVICE STATE-Disk</strong> page you can check whether the disk status exists normal.</p>
<p><img src="http://118.195.179.210:9000/server/index.php?s=/api/attachment/visitFile&amp;sign=37b7034af8e6b349c26f27106c385f91" alt="" /></p>
<p>3.3 Check whether the parameter setting is normal
If you do not ensure which setting parameter is set incorrectly, you can restore the factory settings in <strong>MAINTION-Parameter</strong>; !</p>
<p><img src="http://118.195.179.210:9000/server/index.php?s=/api/attachment/visitFile&amp;sign=968a203df7409342d887296ef64b7ef5" alt="" /></p>
<p>3.4 Check the prevalence of this problem for the same version of software.</p>
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