Help library: Help library: [LG smart TV monitor] When using the settop box, the TV turns off occasionally (turns off and on repeatedly)

<div oncontextmenu="return false" onselectstart="return false" ondragstart="return false" >
	<html lang="ko">
<head>
<meta>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width">
<style type="text/css">
@import url(https://fonts.googleapis.com/earlyaccess/notosanskr.css);
.tal {text-align:left !important;}
.ml-1 {margin-left:20px !important;}
.mt-0 {margin-top:0 !important;}
.mt-1 {margin-top:20px !important;}
caption {overflow:hidden;width:1px;height:1px;margin:0;padding:0;font-size:1px;text-indent:-9999px;}
.ir-hidden {position:absolute;margin:-1px;width:1px;height:1px;padding:0;border:0;white-space:nowrap;overflow:hidden;clip:rect(0, 0, 0, 0);clip-path:inset(50%);}
.content-service-view {font-family:'Noto Sans','Noto Sans KR',sans-serif;font-size:14px;line-height:1.6;}
.content-service-view .lg-red {color:#ec455a !important;}
.content-service-view .c-gray {color:#999 !important;}
.content-service-view strong {font-weight:600;}
.content-service-view p {margin:0 0 10px 0;padding:0;}
.content-service-view ol,
.content-service-view ul {margin:0 0 20px;padding:0;list-style:none;}
.content-service-view [class^="iframe-wrap"] {margin-top:15px;}
.content-service-view .iframe-wrap iframe {width:640px;}
.content-service-view .iframe-wrap-shorts iframe {width:365px;}
.content-service-view .info-subject {margin:0 0 15px;padding:0;font-size:18px;color:#444;line-height:1.5;}
.content-service-view .tit {position:relative;margin:60px 0 15px 0;padding:0;font-weight:600;font-size:22px;color:#444;line-height:1.5;}
.content-service-view .tit:before {content:"";overflow:hidden;position:absolute;left:0;top:-8px;width:25px;height:3px;background:#ec455a;}
.content-service-view .tit:first-child {margin-top:0;}
.content-service-view .info-subject+.tit {margin-top:40px;}
.content-service-view .sub-tit {position:relative;margin:60px 0 10px;padding:0 0 0 22px;font-size:17px;font-weight:500;line-height:1.5;}
.content-service-view .sub-tit:before {content:"";overflow:hidden;position:absolute;left:0;top:5px;width:18px;height:18px;border-radius:50%;background:#999 url(https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=CYfUaCPKDZkbFewB3OjoAA&amp;portalId=P1) no-repeat 4px 50%;background-size:10px;}
.content-service-view .sub-tit:first-child,
.content-service-view .tit+.sub-tit {margin-top:20px;}
.content-service-view .sub-tit .num {display:block;position:absolute;left:0;top:5px;width:17px;height:17px;text-align:center;border-radius:50%;font-size:11px;color:#fff;background:#999;}
.content-service-view .info-tit {margin:20px 0 0;padding-left:20px;font-size:15px;font-weight:500;color:#000;background:url(https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=81CJtgOoS8EBzjcpk4oCvA&amp;portalId=P1) no-repeat 0 5px;background-size:16px;}
.content-service-view .info-desc {margin:5px 0;font-weight:500;color:#000;}
.content-service-view .info-desc.idt {margin-left:18px;text-indent:-18px;}
.content-service-view .txt-idt {margin-left:16px !important;text-indent:-16px;}
.content-service-view .txt-idt * {text-indent:0;}
.content-service-view .img-only {margin:0 0 20px;}
.content-service-view .img-only img {max-width:100%;margin-bottom:15px;}
.content-service-view .img-only img:last-child {margin-bottom:0;}
.content-service-view .img-box {margin:15px 0;font-size:0;line-height:0;}
.content-service-view .img-box a {font-size:0;line-height:0;}
.content-service-view .cause-list {margin-top:0;}
.content-service-view .cause-list li {position:relative;margin-top:5px;padding-left:10px;line-height:1.5;}
.content-service-view .cause-list li:before {content:"";position:absolute;left:0;top:9px;overflow:hidden;width:3px;height:3px;border-radius:50%;background:#000;}
.content-service-view .bul-list {margin-top:15px;}
.content-service-view .bul-list li {position:relative;margin-top:7px;padding-left:10px;line-height:1.5;}
.content-service-view .bul-list li:before {content:"";position:absolute;left:0;top:9px;overflow:hidden;width:4px;height:4px;border-radius:50%;background:#ec455a;}
.content-service-view .tbl-scroll {position:relative;overflow-x:auto;margin:0 0 15px;}
.content-service-view .tbl-scroll table {border-collapse:collapse;}
.content-service-view .tbl-scroll th,
.content-service-view .tbl-scroll td {padding:7px;border:1px solid #ccc;text-align:center;white-space:nowrap;vertical-align:middle;font-size:14px;line-height:1.6;}
.content-service-view .tbl-scroll th {font-size:15px;font-weight:600;background:#ddd;}
.content-service-view .tbl-scroll td p {margin-bottom:0;}
.content-service-view .tbl-scroll .bg-red td {background-color:rgba(236, 69, 90, 0.06);}
.content-service-view [class^="icon-"] {display:inline-block;overflow:hidden;width:14px;height:14px;text-indent:-5000px;margin-right:2px;vertical-align:-2px;background-image:url(https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=e6Br68S0ipa4zVZ3ZhqQ&amp;portalId=P1);background-size:100%;}
.content-service-view .icon-down {background-image:url(https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=cSrRVKKz6eHJNHzIRgzWA&amp;portalId=P1);}
.content-service-view [class^="btn0"] {display:inline-block;height:32px;padding:0 15px;border:1px solid #ec455a;border-radius:18px;text-decoration:none;font-size:14px;color:#ec455a;line-height:2;background:#fff;}
.content-service-view .btn01:hover {color:#fff;background:#ec455a;}
.content-service-view .link-btn {display:inline-block;height:32px;margin-top:5px;padding:0 15px;border:1px solid #d2d2d7;border-radius:18px;text-decoration:none;font-size:14px;color:#ec455a;line-height:2;background:#fff;}
.content-service-view .link-btn:hover {border-color:#ec455a;}
.content-service-view .link-txt {text-decoration:underline;vertical-align:top;color:#ec455a;word-break:keep-all;word-wrap:break-word;}
.content-service-view .tip-box {margin:25px 0;padding:20px 20px 10px;border:2px solid #ddd;border-radius:8px;}
.content-service-view .tip-box .tip-tit {display:block;position:relative;padding-left:20px;font-size:15px !important;color:#222;}
.content-service-view .tip-box .tip-tit:before {content:"!";position:absolute;left:0;top:5px;width:16px;height:16px;border-radius:50%;text-align:center;font-size:11px;color:#fff;background:rgb(192, 192, 192);}
.content-service-view .tip-box p {margin-top:10px;color:#ec455a !important;}
.content-service-view .tip-box strong {font-size:14px;}
.content-service-view .tip-box&gt;p&gt;strong {color:#ec455a !important;}
.content-service-view .tip-box .con-view {margin:10px 0;color:#333;}
.content-service-view .tip-box p+.con-view {margin-top:-5px;}
.content-service-view .tip-box .bul-list {margin-bottom:15px;}
.content-service-view .tip-box .con-view+[class^="img-"] {margin-top:20px;}
.content-service-view .img-banner {margin-top:30px;}
.content-service-view .img-banner .mo {display:none;}
.content-service-view .img-banner .pc {display:block;position:relative;height:168px;margin-right:175px;background:#e9ecf1 url(https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=O8M2PIubTMTpeeLjPOjNw&portalId=P1) no-repeat 0 50%;background-size:contain;}
.content-service-view .img-banner .pc a {position:absolute;top:0;right:-175px;}
.content-service-view .img-banner .pc a img {-webkit-box-shadow: 2px 2px 5px 0px rgba(118,118,118,1);-moz-box-shadow: 2px 2px 5px 0px rgba(118,118,118,1);box-shadow: 2px 2px 5px 0px rgba(118,118,118,1);}
.content-service-view .mobile-txt {display:none;margin-top:-10px;padding-left:20px;color:#999;background:url(https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=Xw5rvb0UTyjfo1LwHfIJ7w&amp;portalId=P1) no-repeat 0 5px;background-size:15px;}
.content-service-view .link-list {margin-top:10px;}
.content-service-view .link-list li {display:table;box-sizing:border-box;width:100%;margin-top:10px;padding:8px 15px;border-radius:8px;box-shadow:2px 4px 16px 1px rgba(0,0,0,0.14);}
.content-service-view .link-list li .link-tit {display:table-cell;padding-right:5px;font-weight:600;vertical-align:middle;}
.content-service-view .link-list li .right {display:table-cell;text-align:right;}
.content-service-view .link-list li .ver {display:inline-block;margin-top:5px;color:#999;}
.content-service-view .link-list li .right a {margin-left:10px;}
.content-service-view .txt-box {max-width:600px;}
.content-service-view .txt-box+.txt-box {margin-top:25px;}
.content-service-view .txt-box h4 {margin:0;padding:6px;text-align:center;font-size:18px;font-weight:600;background:#ddd;}
.content-service-view .txt-box ul {margin:0 7px;}
.content-service-view .txt-box li {display:flex;flex-wrap:wrap;padding:5px;border-bottom:1px solid #ddd;}
.content-service-view .txt-box li div {flex:1 1 50%;}
.content-service-view .txt-box li span {display:block;position:relative;padding-left:10px;font-size:16px;font-weight:600;}
.content-service-view .txt-box li span:before {content:"";position:absolute;left:0;top:10px;overflow:hidden;width:4px;height:4px;border-radius:50%;background:#000;}
.content-service-view .txt-box li p {margin:0;padding:0 0 0 10px;font-size:14px;}
.content-service-view .help-txt {position:relative;margin:30px 0 0;padding:0 0 0 15px;font-size:14px;color:#666;}
.content-service-view .help-txt:before {content:'＊';position:absolute;left:0;top:0;font-size:12px;font-weight:600;color:#ec455a;}
#contentsViewer .content-service-view .iframe-wrap iframe {height:360px !important;}
#contentsViewer .content-service-view .iframe-wrap-shorts iframe {height:650px !important;}
#contentsViewer .content-service-view .info-subject {margin:0;padding:0 0 15px;}
@media screen and (max-width: 768px) {
.content-service-view img {max-width:100% !important;}
.content-service-view .mobile-txt {display:block;}
.content-service-view [class^="iframe-wrap"] {position:relative;overflow:hidden;height:0;padding-top:30px;padding-bottom:56.25%;}
.content-service-view .iframe-wrap-shorts {padding-bottom:120%;}
.content-service-view [class^="iframe-wrap"] iframe {position:absolute;top:0;left:0;width:100%;height:90% !important;}
.content-service-view [class^="iframe-wrap"]+.tit {margin-top:0;}
.content-service-view .img-banner .mo {display:block;}
.content-service-view .img-banner .mo img {width:100%;}
.content-service-view .img-banner .pc {display:none;}
#contentsViewer .content-service-view [class^="iframe-wrap"] iframe {height:90% !important;}
}
</style>

</head>
<body>

<div class="content-service-view">
    <p class="info-desc">
        HDMI cables have a CEC function, enabling power control between products.<br>
        The power may turn on or off automatically due to a malfunction of the CEC function.
    </p>    
<h2 class="tit">Causes and Symptoms</h2>
    
<ul class="cause-list">
        
<li>When using the settop box, the automatic TV power function is turned on.</li>
    </ul>
    
<h2 class="tit">Try this</h2>
    
<h3 class="sub-tit">Does the power turn on or off automatically?</h3>
    <p class="info-desc idt">➔ Disable the [Automatic Power] function from the setting menu of the smart TV monitor.</p>    
<h3 class="sub-tit">Accessing the [Automatic Power] function from the Settings menu</h3>
    <p class="info-desc idt">➔ Accessing the [Automatic Power] function in WebOS 22</p>    
<div class="con-view">
        Press the <img style="vertical-align: bottom;" alt="settings" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=GmMYg0tesZETawmGSreXAw&amp;portalId=P1"> button on the remote control → [All Settings] → [General] → [Devices] → [HDMI settings] → [SIMPLINK (HDMI-CEC)] → [ON] → [OFF].
    </div><br>
    <p class="txt-idt">
        1. Turn on the TV and press the [Settings] button on the remote control.
    </p>    <p class="txt-idt">
        2. From the [Settings] list, select [All Settings].
    </p>    
<div class="img-only">
        <img alt="From the [Settings] list, select [All Settings]." src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=nmqfb0rPE9gJJZKwrvEvg&amp;portalId=P1">
    </div>
    <p class="txt-idt">
        3. From [General], select [Devices].
    </p>    
<div class="img-only">
        <img alt="From [General], select [Devices]." src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=RkTQL3ngHbkKgydXOphHtw&amp;portalId=P1">
    </div>
    <p class="txt-idt">
        4. Select [HDMI Settings].
    </p>    
<div class="img-only">
        <img alt="Select [HDMI Settings]." src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=sKn4Ej13KFhPGBNupovk6g&amp;portalId=P1">
    </div>
    <p class="txt-idt">
        5. Set [SIMPLINK (HDMI-CEC)] to OFF.
    </p>    <p>
        ※ Since webOS6.0 or later, there is no separate automatic power supply, and if you set SIMPLINK (HDMI-CEC) to OFF,<br>
        it will not be controlled by external devices.
    </p>    
<div class="img-only">
        <img alt="Set [SIMPLINK (HDMI-CEC)] to OFF." src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=RhxSz9KkmXdpOdJz5UGw&amp;portalId=P1">
    </div>
    <p class="info-desc idt">➔ Accessing the [Automatic power supply] function in WebOS 4.5</p>    
<div class="con-view">
        Press the <img style="vertical-align: bottom;" alt="설정버튼 이미지" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=YKAyBcgjXhV4n3o7219g&amp;portalId=P1"> button on the remote control. → [All Settings] → [Connect] → [Set Device Connection] → [Automatic Power Supply] → [ON] → [OFF].
    </div><br>
    <p class="txt-idt">1. Turn on the TV and press the [Settings] button on the remote control.</p>    <p class="txt-idt">2. From the [Settings] list, select [All Settings].</p>    <p class="txt-idt">3. From [Connect], select [Set Device Connection].</p>    <p class="txt-idt">
        4. From [Set Device Connection], change the setting of [Automatic Power Supply] from ON to OFF.
    </p>    <br>
<p class="help-txt">This guide was created for all models, so the images or content may be different from your product.</p></div>

</body>
</html>
	
</div>

Help library

[LG smart TV monitor] When using the settop box, the TV turns off occasionally (turns off and on repeatedly)

Contact