LG 55LD520C-UA Pink Veritcal Line 1/3 up from the bottom

[culcuhain]

Good afternoon!

My friend brought me his LG 55LD520C-UA over with the symptom of goes from Red Stand by to blue on but no audio or picture.
I check the voltages and it was not getting the signals to the Power Board from the main board. Ordered a new main board from the LG distributor. I received it. Plugged it in. I now have a picture, audio and all controls, inputs work.

There is a pink veritical line up the middle starting at the bottom of the screen and going up only 1/3. The main board has the TCon integrated.

Bad panel? Bad tcon cables?

Thanks!

[culcuhain]

Re: LG 55LD520C-UA Pink Veritcal Line 1/3 up from the bottom

My bad about the tcon integrated. New main board went out after 4 days. Got it replaced under warranty. Plugged it in.... now i am playing the game of bad main,tcon, cable or some of the above.... what are your thoughts?

[dick_barton]

Re: LG 55LD520C-UA Pink Veritcal Line 1/3 up from the bottom

Can only suggest cleaning the LVDS cable with alcohol and reseating it carefully at both ends.

[dick_barton]

Re: LG 55LD520C-UA Pink Veritcal Line 1/3 up from the bottom

If you carefully apply pressure to flex the corner of the panel do the line go or change indicating a tab problem, otherwise I can only suggest cleaning the LVDS cable with alcohol and reseating it carefully at both ends.

[ReeceyBurger123]

Re: LG 55LD520C-UA Pink Veritcal Line 1/3 up from the bottom

Panel failure possibly tab bond issue.