One vertical green line on my AQUOS LC-70LE740E TV

[Rollerdog]

Hey there rollerdog here.

on my AQUOS LC-70LE740E LCD TV there is a vertical green line on the screen. (pictures below)

Does anyone know what the issue could be?

Up close it looks something like this

Thanks in advance!

Edit:
Factory reset did not fix the issue.

 

[Rollerdog]

When I loose the contact on the connection and apply different amounts of pressure I get this kind of artifacting (some of it looks just like the original vertical line. The original vertical line however does not go away when reconnecting):

 

[Rollerdog]

To be clear...
This is the connector fully engaged:

This is the connector fully loosened

This is one of the many artifacts that apear, when the loosened connector is lightly pressed down (notice the permanent line is brighter):

This is another one of the many artifacts that apear, when the loosened connector is lightly pressed down:

These artefacts are lines or plains that are white, blue, red or green. Next to that connector is another one that behaves the same as far as I can tell.

Another idea would be to replace one of the PCBs:

There is another one on the right of them but its covered by a metal plate. The whole housing is of metal, beautiful construction.

Maybe unplugging the cables on the pcbs and cleaning them would do the job? I have no clue about this stuff, but im feeling like dumpimg this high quality made in japan TV is a waste. Defenitly no warrenty on this one. Pressing the ribbon under the connector doesnt effect the screen at all.

 

[LGSAM]

The issue maybe where the connection is bonded to the LCD rather than at the connector ends , see if you can apply any pressure to that area and see if fault changes .
Good luck

 

[Daveel]

I have that problem with an old PC monitor and came across this:

How to Get Rid of a Thin Green Line on an LCD

Your LCD produces specific colors and images by altering the colors of the thousands of tiny pixels in the screen. Three subpixels -- colored red, green and blue -- make up each pixel, and tiny transistors inside the screen electronically trigger the correct color. Various factors can cause...

itstillworks.com

I didn't spend a lot of time on it as I don't need it and I couldn't fix it but was not bothered. Maybe it will help you.
Dave

 

[Rollerdog]

Applying pressure to the bonds did not have any effect. I might unplug the ribbons and clean the contacts next.

 

[Rollerdog]

Maybe swapling out the PCB would do the trick?

 

[Rollerdog]

This is what I plan to do now:

I will apply heat (270-370°c) for 1-2s on the "1st" COF. If it does not work I will move on to the "2nd".

On each I will start in the middle and move outwards.

 

[LGSAM]

This is what I plan to do now:

I will apply heat (270-370°c) for 1-2s on the "1st" COF. If it does not work I will move on to the "2nd".

On each I will start in the middle and move outwards.

Did you have any luck with this?