Samsung UE65F9000SLXXH

[WhiteWolfHellas]

Hello, I have this TV for repair and the symptom is that every black background has a red colour like noise. It is not visible in the menu though. I have removed and cleaned all the flex / cable connected on the boards, nothing changed. Is that main board issue?

[Diah]

Re: Samsung UE65F9000SLXXH

log in service menu from STB state and from there do initial (hard reset ). after you check the white balance all channel value.. write it down over here or upload screen shoot.

[WhiteWolfHellas]

Re: Samsung UE65F9000SLXXH

log in service menu from stb state and from there do initial (hard reset ). After you check the white balance all channel value.. Write it down over here or upload screen shoot.

[Diah]

Re: Samsung UE65F9000SLXXH

if you did hard reset from service menu and there no change.... for me its One connect problem

[WhiteWolfHellas]

Re: Samsung UE65F9000SLXXH

if you did hard reset from service menu and there no change.... for me its One connect problem

I did factory reset the TV and took a photo.
How can this be a One Connect problem though? The red background is pressent even with One Connect disconnected.

[Diah]

Re: Samsung UE65F9000SLXXH

I did factory reset the TV and took a photo.
How can this be a One Connect problem though? The red background is pressent even with One Connect disconnected.

where are the photo its show this back ground with warning screen about connect the one connect ??????

[WhiteWolfHellas]

Re: Samsung UE65F9000SLXXH

where are the photo its show this back ground with warning screen about connect the one connect ??????

You mean this?

[Diah]

Re: Samsung UE65F9000SLXXH

now its clear..yours mainboards integrated with T-CON ..?!!?

[WhiteWolfHellas]

Re: Samsung UE65F9000SLXXH

now its clear..yours mainboards integrated with T-CON ..?!!?

No, the T-Con is separate from the main board.

[Diah]

Re: Samsung UE65F9000SLXXH

No, the T-Con is separate from the main board.

in this case you need first to test panel reaction after you connect the one connect and feed video or other ports signal then disconnect one ribbon at time between T-CON and panel. to check if there are any different with it.

[WhiteWolfHellas]

Re: Samsung UE65F9000SLXXH

in this case you need first to test panel reaction after you connect the one connect and feed video or other ports signal then disconnect one ribbon at time between T-CON and panel. to check if there are any different with it.

Using the antenna signal (aerial) the screen turns black when I disconnect either of the T-Con flexes to panel.

[Diah]

Re: Samsung UE65F9000SLXXH

remove the metal shield of the 2 boards the back one and the one at the middle. upload focused high resolution photos on both. we need to track the video signal R/G/B-Offset

[WhiteWolfHellas]

Re: Samsung UE65F9000SLXXH

remove the metal shield of the 2 boards the back one and the one at the middle. Upload focused high resolution photos on both. We need to track the video signal r/g/b-offset

T-Con board

3-D board(?)

[Diah]

Re: Samsung UE65F9000SLXXH

its difficult to trace the signal walking thru. need to take a look on the other boards with black cover.

BTW: did the "one connect" socket connected to video processing boards ( the middle one ) via the Yellow socket clip?

[WhiteWolfHellas]

Re: Samsung UE65F9000SLXXH

its difficult to trace the signal walking thru. need to take a look on the other boards with black cover.

BTW: did the "one connect" socket connected to video processing boards ( the middle one ) via the Yellow socket clip?

The One Connect socket is connected in the main board. The yellow socket connects the main board with the 3-D board if that's what you are asking.

[Diah]

Re: Samsung UE65F9000SLXXH

try first to clean and reseat the black LVDS cable from both sides.. then you have 3 gate IC on the manibiards close to this black LVDS. IC110-111-112 try to freeze or to heat to check any different at screen

[WhiteWolfHellas]

Re: Samsung UE65F9000SLXXH

try first to clean and reseat the black LVDS cable from both sides.. then you have 3 gate IC on the manibiards close to this black LVDS. IC110-111-112 try to freeze or to heat to check any different at screen

Did everything you said, nothing changed. Could it be a defective panel?

[Diah]

Re: Samsung UE65F9000SLXXH

Did everything you said, nothing changed. Could it be a defective panel?

No,
if you did freeze or heating ICs 110-111-112 with no change.. then you have 90% BGA at the big chip.. look on the left side of the Ics where the print line goes.. at this side of the chip need flux and refellow

[WhiteWolfHellas]

Re: Samsung UE65F9000SLXXH

No,
if you did freeze or heating ICs 110-111-112 with no change.. then you have 90% BGA at the big chip.. look on the left side of the Ics where the print line goes.. at this side of the chip need flux and refellow

OK, I will do a reflow and report back, thank you for the info brother.