Turning black for 10 seconds and turning back on. LG 60LB6100 the TV s
shuts black about twice every 30 minutes
intermittent failures like this are hard to diagnose. Could be an input issue, so try all different input sources (HDMI, Coax, Composite etc.) Could be a firmware issue; disconnect everything from your TV including the power board. Then hold the power button down for 15-30sec. Plug the TV back in and connect a Video source and see if that changed it. If none of this works you may have to consider that this is a power board, main board, or backlight array issue. Once the TV turns black, shine a flashlight at an angle against the screen. If you can still make out shapes and forms, you know that it is a backlight issue. If you cannot it is most likely a main board issue. Again, these errors are hard to diagnose and sometimes it may just be easier to learn to live with it.
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