LG 42LW450U, no picture

[finntricky]

got hold of this 42 inch LG 42LW450U 3D LED tv today, now my problem is, i have sound and i have back lights, so the tv is working apart from the picture,
touching the buttons do what there supposed to do, and the remote works as well, so im 80% sure its not the main board thats the problem, so maybe the T-CON, im getting 12v at both ends of the fuse on the T-CON,
what do you guys think, i would love someone in the UK to say, i have a t-con you can try, as i dont fancy paying out for one, and then finding out its the main board, and there not cheap.

[CapLeaker]

Re: LG 42LW450U, no picture

To rule out the main board, get a oscilloscope and check the LVDS, while turning the menu on and off.

Also plug in only one side of the ribbon cable between the TCON and the panel, then the other.

[finntricky]

Re: LG 42LW450U, no picture

no scope, and good idea about ribbons, i can't believe i never even thought of trying that,
i will try it later, and get back.

[finntricky]

Re: LG 42LW450U, no picture

ok, tryed removing ribbons from screen to t-con one at a time and got half screen picture,
the side that shows the picture is grainy, very close lines running down the screen, i have now been able to get some pics up of it,
so looks like a T-CON is needed,, would you agree ?

[ReeceyBurger123]

Re: LG 42LW450U, no picture

Bad Panel Fin

[CapLeaker]

Re: LG 42LW450U, no picture

not good... lines on the black side = bad panel.

[finntricky]

Re: LG 42LW450U, no picture

Bad Panel Fin

yep, agreed. down the dump with it tomorrow then

[ReeceyBurger123]

Re: LG 42LW450U, no picture

More crappy Lcd panels failing nothing new

[ReeceyBurger123]

Re: LG 42LW450U, no picture

Dont forget to take the Leds you can reuse them.