Question Are these lines easily repairable? LG 34WQ500

Feb 23, 2025
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This monitor(LG 34WQ500) is for sale in my area at a bargain. Apparently after 4 hours of use horizontal lines appear on the bottom of the screen.
Anyone have any ideas what this could be and if it's worth buying and fixing?
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might be due to other electronic gadgets (cellular phones, cordless telephones, rotating fanatics) which can be too near the monitor or by means of devices plugged into the same circuit because the monitor, also try change cables..