LG 49UF6490 screen issue

[handsworth]

Waited for months to find this used main board cheap, It finally arrived today and after installed, everything works fine except that the screen is slightly darker on the right side. All leds are lit but the screen is about a half shade darker. I am thinking the connections between the main board, lvds, tcon or tabs that connect to the bottom of the screen. If anyone has come across this problem also, please advise. Thanks

[handsworth]

Re: LG 49UF6490 screen issue

Here are pics of what I got. Its the right side that's a shade darker. Switched tabs, lvds and cleaned connectors. Even did a _IN STOP. Difference is quite small but I can tell. Picture looks great from about 5ft. Any advise on what is causing this?

[Diah]

Re: LG 49UF6490 screen issue

make firmware update or downgrade to let the T-CON firmware match the Main firmware

[handsworth]

Re: LG 49UF6490 screen issue

Updated software but no change. New Tcon solved the problem. Something on the old one must have been bad.

[mazmaz]

Re: LG 49UF6490 screen issue

Hi
It seems that , may your TV's back-light settings make this.
please set off local dimming on back-light settings.

[dick_barton]

Re: LG 49UF6490 screen issue

There was a post on here recently that had I believe to be an identical problem where they said replaciing the mainboard cured the problem.

[vinceroger69]

Re: LG 49UF6490 screen issue

There was a post on here recently that had I believe to be an identical problem where they said replacing the mainboard cured the problem.

In post 3 i think he has now repaired the tv by fitting another t con but yes im sure i have read that fitting a replacement mainboard fixed another persons tv.

[dick_barton]

Re: LG 49UF6490 screen issue

Mssed that. Thanks vinceroger69.