Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

[gbbradshaw]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

his TV blue screen 99.9% damaged U ribbon / LVDS Pins cable. take all out and under good light and loop inspect them... don't trust your glasses...
use magnifier.

pls for feature photos upload use advanced setting and upload photo over this forum

Thanks for the reply. I will have to try this, but is this the case? I am asking because, if I remove the big white lvds cable nothing changes, so I guess the CSF01 ( ribbon cables) might not be the problem.

[gbbradshaw]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

These are the pictures. Tried to focus as much as I could.

[Storyteller12]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

You can try taping pins on lvds cable going to panel to see if you get any sort of picture.

It’s a trial and error kinda of thing. So might have to try several times covering different pins

[Diah]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

his TV blue screen 99.9% damaged U ribbon / LVDS Pins cable. take all out and under good light and loop inspect them... don't trust your glasses...
use magnifier.

pls for feature photos upload use advanced setting and upload photo over this forum

[nomoresonys]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

Is this the right way to do it? Please check the picture
I know that if the caps beeps when I use the multimeter, in most occasions its a bad capacitor.
I also know that if I set the multimeter to 20k to check the ohms and the value is not going from 0 to higher, that's also a bad cap.
Correct / guide me if I am wrong please. Thanks

yes, this I call a dirty test but I have found bad caps this way, if you have some caps that size it sure shouldn't hurt to go ahead and change them out.

[nomoresonys]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

fuse on powerboard is ok, could check on mainboard, sometimes theres a bunch of little fuses that you can check on some mainboards, they will be labeled starting with a Fxx, if they're labeled.

[nomoresonys]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

you can check caps with the same setting of V, just not sure I would check the main filter caps on powerboard with that meter, they usually are around 400 volts when tv working.

[gbbradshaw]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

black neg. lead in com, red pos. lead in V. might not want to measure anything that might be over 300 volts with that meter but you can still check a lot of stuff with it.

That's right, for checking the voltage. But for the capacitors, is it right to do like in the picture?
For the voltage check I am afraid you will have to tell me what and where to check after I will provide the photo of the boards if that's alright. I usually look to check for fuse on the pcb , but I couldn't find one.

[nomoresonys]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

black neg. lead in com, red pos. lead in V. might not want to measure anything that might be over 300 volts with that meter but you can still check a lot of stuff with it.

[gbbradshaw]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

you could check the little mlc caps on the panel driver boards for shorts or very low ohms.

Is this the right way to do it? Please check the picture
I know that if the caps beeps when I use the multimeter, in most occasions its a bad capacitor.
I also know that if I set the multimeter to 20k to check the ohms and the value is not going from 0 to higher, that's also a bad cap.
Correct / guide me if I am wrong please. Thanks

[nomoresonys]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

you could check the little mlc caps on the panel driver boards for shorts or very low ohms.

[gbbradshaw]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

But OUT d pee, if you don't want to help, keep your SARCASM to yourself.

Thanks dude! Just stay tuned, I will upload the pictures at around 6pm uk time.

[gbbradshaw]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

don't waste money buying a main board, it's almost surely the panel, since you are not a tech and the fault is very difficult i suggest you to sell the whole thing as a defective unit.. bye..

I am not sure I want to sell it for £50 while I paid more than 10 times this price last year. I am sure there are specialists in here who might have encountered this kind of problem over the years and that might be able to help. Thanks for replying though.

[Davi.p]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

don't waste money buying a main board, it's almost surely the panel, since you are not a tech and the fault is very difficult i suggest you to sell the whole thing as a defective unit.. bye..

[gbbradshaw]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

Is CN1 closed correctly?

Yes , everything was cleaned with contact cleaner and put back together as normal to the lines.

[gbbradshaw]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

easy stuff first, try a simple reset, with tv unplugged, hold power button on tv for 30 seconds, then plug it in and try it.

Already tried that, more than 60 seconds.

[gbbradshaw]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

yep, make sure those cables are positioned correctly, can clean them too: https://www.youtube.com/watch?v=aOCLpJub2l0

I have already did that last night just to tick this off the to do list. No success with that. One thing I have to mention, removing the white lvds cable , the long one, does nothing. But with it connected, when I switch through the tv channels I can see the screen light changing from dark blue to lighter. Which mean somehow thr pcb board is not sending enough signal to the display.

[gbbradshaw]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

should probably do some voltage checking before removing anything.

I will do clear pictures and then maybe you can guide me to do so please.

[nomoresonys]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

yep, make sure those cables are positioned correctly, can clean them too: https://www.youtube.com/watch?v=aOCLpJub2l0

[nomoresonys]

Re: Samsung 65" UE65TU7000KXXU VER:02/UTU7000 TV Blue screen

easy stuff first, try a simple reset, with tv unplugged, hold power button on tv for 30 seconds, then plug it in and try it.