Help library: Help library: [LG TV Screen] Only half the screen is working

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<h3 class="sub-tit">Are you seeing duplicate images on every channel?</h3>
       <p class="info-desc idt">➔ Go to [Settings] and start [Picture Test] to check if the picture works normally.</p>

<div class="tip-box">
            <strong class="tip-tit">Running [Picture Test] in the Settings menu</strong>
           <p><strong>WebOS 5.0</strong></p>

<div class="con-view">
                [2020 WebOS 5.0] Press the <img style="vertical-align: bottom;" alt="setting" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=waIBLjIKg9HZU0bZk9l4ag&amp;portalId=P"> button on the TV remote and select [All Settings] → [Customer Support] → [Additional Settings] → [Picture Test].
            </div>

<div class="con-view">
                Turn on the TV and press the [Settings] button on your TV remote.<br>
                Select [All Settings] in the [Settings] menu.
            </div>

<div class="con-view">
                ① Select [Customer Support] and then ② [Additional Settings].
            </div>

<div class="con-view">
                ③ Select [Picture Test] in [Additional Settings].
            </div>

<div class="con-view">
                Perform [Picture Test] to check the screen condition.
            </div>

<div class="img-only">
                <img alt="Image comparison screen after selecting picture test" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=lePpAoie7Mq5l5xuz4MOA&amp;portalId=P1">
            </div><br>
           <p><strong>[Prior to 2019] WebOS</strong></p>

<div class="con-view">
                [2019 WebOS or before] Press the <img style="vertical-align: bottom;" alt="setting" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=EgCzcSdvHNrFwvSMTMw6bA&amp;portalId=P1"> button on the TV remote and select [All Settings] → [Customer Support] → [Additional Settings] → [Picture Test].
            </div>

<div class="con-view">
                Turn on the TV and press the [Settings] button on your TV remote.<br>
                Select [All Settings] in the [Settings] menu.
            </div>

<div class="con-view">
                ① Select [Picture] and then ② [Picture Test].
            </div>

<div class="con-view">
                Perform [Picture Test] to check the screen condition.
            </div>

<div class="img-only">
                <img alt="Picture Test Screen Sharpness Yes No Question Screen" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=EKTAk0stKG9NzTmPDBacMg&amp;portalId=P1">
            </div>
        </div>
       <p>
            If the test picture is displayed normally, it is likely that the broadcast signal has a problem.<br>
            If the problem does not occur in the picture test, please contact the set-top service provider. (e.g., cable TV, Skylife, IPTV)<br>
            If the problem persists in the picture test, please contact LG Electronics Service Center.
        </p>       <p class="help-txt">This guide was created for all models, so the images or content may be different from your product.</p>    </div>

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[LG TV Screen] Only half the screen is working

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