Samsung UE40F6340 vertical green Lines

[Shipmaker]

I got a problem with my tv a UE40F6340 there are green vertical lines on the whole screnn ever 2 inches
In the samsung chat the mean that this maybe a problem of the T-con but otherwise I have look some videos in you Tube where some people work with Heatguns on the mainboard.
So my question is, is this really a T-con problem or otherwise maybe the panel are gone?

[Moreno83]

Re: Samsung UE40F6340 vertical green Lines

T-con or mainboard problem.

Could you please pictures of the back of the tv? ( Boards ).

[Shipmaker]

Re: Samsung UE40F6340 vertical green Lines

Thank you for your answer but excactly this is the question, now i dissambley the tv an work with a Headgun on the mainboard but the vertikal lines appears again.
But is it possible to work with a Headgun on the T-con?
Here a picture of the backside

[viktorkane]

Re: Samsung UE40F6340 vertical green Lines

Hello
this is defect display
it is not a t-con defect
t-con gives figure deformity or does not give a figure at all
I had such a problem and I changed t-con and the same

[Shipmaker]

Re: Samsung UE40F6340 vertical green Lines

Do you also got vertical green Lines every 2 inches ?
and what modell from samsung you got?

[budwich]

Re: Samsung UE40F6340 vertical green Lines

its unlikely to be a panel / display problem. try disconnecting / reseating / cleaning the cables at the tcon to see if things change.

[Diah]

Re: Samsung UE40F6340 vertical green Lines

Non T-CON or Panel fault, its main board. packing your MB for 10 minute at 280-300 degree ( non air flow oven ) if you have hotair gun then do it only on the main processor.

[Shipmaker]

Re: Samsung UE40F6340 vertical green Lines

Yeah I already do the hotair thing on the whole Board there is some Coller placed over the cpu that I didn t turn off, but I will try again after I cleaning the cables with probanol alcohol1

[Moreno83]

Re: Samsung UE40F6340 vertical green Lines

You need to remove the cables etc from the mainboard. Remove the heatsink on the cpu.

Use a heatgun and flux and heat up the cpu. Watch out because the board will bend pretty quick. It is best to make some small balls with alluminium foil and reflow the cpu. Use youtube for example video's.

Btw , dont repair Samsung it is shit anyways.

[Davi.p]

Re: Samsung UE40F6340 vertical green Lines

To understand for sure between mainboard/tcon there is much probably an autotest in the service menu, if it plays well then it's mainboard.

[Shipmaker]

Re: Samsung UE40F6340 vertical green Lines

Do you mean the selftest in the menue sektion, because I do the picture test the first two pictures felt but the thierd picture was ok, or did you mean autotest in the service menu where you also could do a cold factory reset?

[Shipmaker]

Re: Samsung UE40F6340 vertical green Lines

I just do a autotest in service menue it calls Device test and the audio and so on was ok but T con it shows N/G
What this means?

[Davi.p]

Re: Samsung UE40F6340 vertical green Lines

I mean service menu therefore hidden menu, i don't know where it is the option, it varies but if you want to show all the menus in many pictures...

[Shipmaker]

Re: Samsung UE40F6340 vertical green Lines

But what do you mean when it plays then it is the mainboard, because the test plays!
I think you mean if the test didn t work or start sure?

[Davi.p]

Re: Samsung UE40F6340 vertical green Lines

I mean if the test doesn't show the defect.

[Jandak]

Re: Samsung UE40F6340 vertical green Lines

Hi,
I have a same problem.
In Menu/Support/Autodiagnostics/Image test is first picture (beach) with problem, second picture (stripes purple, red, blue, black) with problem, but third picture (stripes white, yellow... red, blue, black) is without problem.

Why third picture is without problem.
Thanks
Joe

[Davi.p]

Re: Samsung UE40F6340 vertical green Lines

You must do the tests in service mode, one at a time and report here which ones shows defect..

[Jandak]

Re: Samsung UE40F6340 vertical green Lines

In service mode T-CON show NG. Is third picture from main board without effect T-CON?

[Jandak]

Re: Samsung UE40F6340 vertical green Lines

https://www.samsung.com/ca/support/t...v-2014-models/
This picture is without problem https://skp.samsungcsportal.com/uplo...mage_3_med.jpg

[Jandak]

Re: Samsung UE40F6340 vertical green Lines

https://tvrepairdepot.com/samsung-20...ture-problems/ -> T-Con