Hello. my LG 86NANO90UNA started showing verticle color lines when I turn on, and then the TV started working. The next morning TV screen is dark with slight glow to it with no sound. After 20 minutes or so everything seems to work fine. The TV is 14 months old and since it is so big and heavy I prefer to replace whatever is needed or not needed. Thanks
If the screen is too dark on the TV or the brightness keeps on continuing to change then the problem here is with the Energy Saving mode settings. By default the TV does set the Energy Saving to Auto, which means that the TV will automatically by it's self does adjust the screen brightness depending on the brightness of light it detects.
Testimonial: "Thanks Aron however I have turned the energy saving mode off the first I got tv. Dark screen only in morning as well as multi color lines off and on for about 20 minutes until tv is warmed up. Eventually I fear that the TV permanently stay dark or have permanent multi colored lines going up and down. A circuit board needs to be replaced. I'm not sure which one or ones."
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