LG 43UF680V scrambled video

[stanny]

I have recently purchased this LG 43UF680V the tv works fine and plays audio fine and the menus work and display faultlessly but it wont play any sort of video from any source the video is scrambled but the audio is fine. after some reading i suspect i could be a t-con board possibly? its surely some sort of video processing issue.

[CapLeaker]

Re: LG 43UF680V scrambled video

main board i say.... other than that the menu would be garbled too.

[stanny]

Re: LG 43UF680V scrambled video

main board i say.... other than that the menu would be garbled too.

After further research relating to the mainboard as you mentioned it appears thats the case.

[Repair_dane]

Re: LG 43UF680V scrambled video

Have you tried other sources?
HDMI, scart, tv antenna etc. Is it the same problem there?

[Diah]

Re: LG 43UF680V scrambled video

firmware issue.. rest it with IN_STOP command and make update

[stanny]

Re: LG 43UF680V scrambled video

Have you tried other sources?
HDMI, scart, tv antenna etc. Is it the same problem there?

its the same on every single input usb, tv, hdmi, netflix etc

[Hamie]

Re: LG 43UF680V scrambled video

You have a common fault on these models with a faulty XD engine graphic chip under the heat sink. The one closest to the connection leading to the tcon.

This is a tough job and if you have no bga soldering experience you will be better off sending the board in for repair below.

https://www.ebay.co.uk/itm/333370763312