Samsung UE75KS8005T no picture

[PowerAmpFreak]

Hi all, got this UE55KS8005T project, give it a chance in case possible to repair.
Owner had it working on Saturday. When powering up on Sundag, only sound came on, picture black.
During power-on, the screen gives three vertical lines from top to bottom, which slowly fades out in 5 seconds.
Backlight on continously.
No flashing led.

Service manual available?
Probably a panel failure? Bufferboards?
Any advice is appreciated!

[Diah]

Re: Samsung UE75KS8005T no picture

i think its Quantum dot display, in this case ESD diode defect.. look on the panel buffer board the right side ( when you look from the back side ) there will be 3 esd one of them will be very hot.

[PowerAmpFreak]

Re: Samsung UE75KS8005T no picture

Thanks, is it safe to place it on a big table with screen down ?

[Diah]

Re: Samsung UE75KS8005T no picture

Thanks, is it safe to place it on a big table with screen down ?

yes..
just tuen on and leav it on and notice the temprature on the ESD.. then show here the result