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Question DetailsAsked on 7/19/2017

Is there an easy fix for a flickering picture on a LG flatscreen tv?

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Electronic device - easy fix - are you in the habit of being terminally optimistic or deceiving yourself ?

Could be a lot of things - possibly a defective screen (google following search phrase for a LOT of complaints on websites about LG LED screen flickering) - LG flatscreen flickering recalls. Also links there to recall info for this behavior on several brands of LED TV's.

Could also be a loose or corroded connector (either not fully plugged in, or not made tight enough in first place), possibly a video driver board problem, power supply flicker, etc. Even a problem with your cable box or antenna or its connections - check them first. Only "easy" fix is when the tech happens to properly guess which it is and fixes it with the first thing he does.

If the flickering is entire screen I would suspect something from connnector "outwards' from the screen - if only a portion of the screen is flickering I would guess it is defective or got knocked into and damaged so you are talking a substantial (commonly 50-100% of new replacement TV) cost.

To rule out input device or cable/antenna problems, disconnect the input cable (HDMI or Coax usually) to the TV and turn the TV to a setup menu screen - if the picture is stable and good on a setup screen then the problem is in the input - antenna, cable TV, cable box, input selector box, or maybe something like a gaming console is plugged in and feeding garbage into the input. Even feedback from an external device the TV outputs to. If screen still flickers when set on setup menu with all input and output cables disconnected then is almost certainly inside the TV.


Oh - one other thing - take the TV remote far away from the TV - rarely a stuck button on a TV remote (or one pushed down in the cushions or such) can cause odd TV behavior like that. Ditto to other control devices, like if you have a computer or cell phone rigged as a TV controller or input, and also any sort of gaming or TV-connected exercise device which could be sending garbage signals to it.

Here is also a previous similar question with a response linking to an answer elsewhere, FYI:

http://answers.angieslist.com/Lg-tv-m...

Answered 1 year ago by LCD




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