LG 55LN5400 Jumping Picture

[rikrikrik13]

I got this LG 55LN5400 with a jumping picture (See pictures)

I already replaced the t-con board with one on eBay with no success

[rikrikrik13]

Re: LG 55LN5400 Jumping Picture

I also tried to disconnect one side of the t-con but It won't work (Should give half of the screen) at all (blank picture) if I disconnect any of the sides

[Alastair E]

Re: LG 55LN5400 Jumping Picture

Prob the panel itself. Whenever Ive seen that double-image/lined sort of picture--the panel itself or the COF chips that are part of the panel has been duff.

[rikrikrik13]

Re: LG 55LN5400 Jumping Picture

Is it normal if I leave the tv working for a while, the image get better and better?

its not jumping anymore, but the image is still not good :p

[vinceroger69]

Re: LG 55LN5400 Jumping Picture

I wonder if these sets suffer from bad tab bonds? also i wonder if maybe the main board could cause this you have nothing too loose try heating the main board up with a hair dryer see if the picture gets better as maybe bad bga soldering etc.

[CapLeaker]

Re: LG 55LN5400 Jumping Picture

That isn't a tab bond or tcon issue. You sure can press on the BGA, heat or cool things on the main board see what happens... but the chances are slim.

[rikrikrik13]

Re: LG 55LN5400 Jumping Picture

30 minutes TV is running and now the picture is almost perfect ??

[rikrikrik13]

Re: LG 55LN5400 Jumping Picture

I just did a software update, no change.

Image still good after 45 minutes (you can still see some horizontale line everywhere but you really need to look)

Screen seems to keep ghost image, after the update, the '' UPDATE '' message stayed on the screen for several minutes (ghost image)

I think the panel is bad lol