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

[gbbradshaw]

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

yes, clearly a panel defect, the same and today old gate driver defect.. only masking tape can work
you must mask a series of 8 subsequent pins on one of the two flat cables starting from the outer side, at random

Update: before leaving home, I have managed to swap the main board and now I have the image back! Yeey ! So the main board was damaged. But I still get the lines. If I remove one of the u ribbon I get the following image.
I will have to try your method of masking the 8 subsequent pins tomorrow.
Picture 1 - without removing the flex ribbon
Picture 2 - with the flex ribbon removed

[Davi.p]

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

the main board is good

[gbbradshaw]

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

yes, clearly a panel defect, the same and today old gate driver defect.. only masking tape can work
you must mask a series of 8 subsequent pins on one of the two flat cables starting from the outer side, at random

I understand. Going from left or right to the middle of each cable. 8 at once. Should I try that before swapping the main board ?

[Davi.p]

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

yes, clearly a panel defect, the same and today old gate driver defect.. only masking tape can work
you must mask a series of 8 subsequent pins on one of the two flat cables starting from the outer side, at random

[gbbradshaw]

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

I forgot I had a picture of it before.

[gbbradshaw]

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

no, i asked which code he has searched, if the good one or not.. BN94 is the good one..
my curiosity, has someone done house works , using heavy tools, drills , demolitions and so on the days the defect happened?

Not that I know off. After getting so much information from here, my good guess is that he ( the local tech )has probably tried to fix it by working with the u ribbon cable and eventually totally damaged the main board. That's why my tv went from normal image but with horizontal stall lines to full blue.

[Davi.p]

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

no, i asked which code he has searched, if the good one or not.. BN94 is the good one..
my curiosity, has someone done house works , using heavy tools, drills , demolitions and so on the days the defect happened?

[gbbradshaw]

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

but which code, BN41- or BN94- ?

Iotas is right. Bn94-15304y

[lotas]

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

but which code, BN41- or BN94- ?

Post 28 has it all.

[Davi.p]

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

but which code, BN41- or BN94- ?

[gbbradshaw]

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

I’m pretty sure it’s the panel that’s bad. I don’t think mainboard is going to fix it. As I mentioned a lot of he TU series have bad panel

It might aswell be, but I can only know if I'll try. With all the cables connected, while changing the channels I can see thr screen changing its lights from normal blue to darker, whilst with the lvds off, the screen stands blue. With all of this being considered and with some luck, I would like to think that it is a mainboard problem more than a display problem.
As i said, i am no professional but is more likely the mainboard as it is what controls the signal output to the screen via the LVDS.

[gbbradshaw]

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

.. so you bought a main board at random? well, shipping companies will smile..
Which code you have searched?
Anyway PCB= printed circuit board; PSB= power supply board; PB= Power board.... aaaah! These acronyms!

Bought from one of the biggest suppliers for spare tv parts, with warranty and return in case this is not going to fix my issue. Happy days

[Davi.p]

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

.. so you bought a main board at random? well, shipping companies will smile..
Which code you have searched?
Anyway PCB= printed circuit board; PSB= power supply board; PB= Power board.... aaaah! These acronyms!

[Storyteller12]

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

I’m pretty sure it’s the panel that’s bad. I don’t think mainboard is going to fix it. As I mentioned a lot of he TU series have bad panel

[gbbradshaw]

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

My bad then, when I say PCB I refer to a board with the whole circuitry/components, whereas when I use PWB, I simply mean the power board. So yeah, I bought the main board.

[Diah]

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

PCB = PWB= Power circuit Board
you mean MB Main Board

[nomoresonys]

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

Terminology, pcb=printed circuit board, includes powerboard and mainboard, just call them what they are mainboard has the video/audio inputs, powerboard supplies the power.

[gbbradshaw]

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

replace PCB.... !!! why and where you got so fast PWB replacment LOL....
what had blue screen to do with PWB !!!!

I am not sure where did you read that I bought the PWB ? I said I bought the PCB board , hopefully will put my hands on it tomorrow. Why? Because there was nothing else to try. Where? Ebay. Lucky, I know, only one piece on the whole ebay.

[Diah]

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

replace PCB.... !!! why and where you got so fast PWB replacment LOL....
what had blue screen to do with PWB !!!!

[gbbradshaw]

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

Will replacing the pcb board but (theoretically) having bad u ribbon or lvds cable , damage it again?