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Lg smart tv switching off automatically


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@Hiren Chotaliya Is this intermittent? When on, how long does it stay on?

Have you checked that the A/C mains plug at the back has not worked a bit loose (sometimes these IEC type "kettle" plugs back out slightly, and APPEAR to be fully in, but are not, so try pushing in a few  more millimeters). They can also get burned/corroded internal contacts if left loose for some time, due to arcing). It is also worth checking the wall socket end too, especially if it is not a moulded plug type, or you use one of those "multi-plug" things, cheap brands can have poor contacts. Try using another A/C lead direct to the wall if you can, to eliminate that and any multi-socket first.

Also check any HDMI plugs, as external devices can use CEC control lines to turn things on and off, and if loose, can confuse the electronics.

If you have eliminated the above, it is possible that there may be a power-supply fault in the TV, or it is detecting an overcurrent from some faulty internal board or component. If under warrantee, see if you can get it repaired under that.

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