Sony KD-55X9000E display problem green-and-white horizontal line

Question

Sony Bravia 4K 55" Ultra High Definition Smart LED TV

Repair information for the Sony Bravia 4K 55" Ultra High Definition Smart LED TV. Released in 2019. Model number: XBR-55X950G.

22 Questions View all

Surya @surya48253

Rep: 1

1

Posted: Sep 12, 2026

Options

Sony KD-55X9000E display problem green-and-white horizontal line

Dear Team,

On my Sony KD-55X9000E Led tv today given green-and-white horizontal pattern line. Can anyone suggest how to resolve this. Already hard reset the tv, many time off on but no result.

Few days ago its working fine but current situation is Like this.

Dear @oldturkey03 as per your instruction i open back cover , one by one disconnect both ribbon cable.

After remove 1st Ribbon cable from T-con board to motherboard.

Then connect first one disconnect second one to motherboard.

Back picture:

Example of removing cable from T-Con Board to motherboard.

motherboard :

Still i open the back cover for waiting your instruction , if another picture or troubleshooting required.

Please respond ASAP, its risky to open back side.

Dear @oldturkey03 again Today disconnect the ribbon cable from T-con board to panel one by one. After disconnect one cable just backlight glowing no display is coming. That's why no picture can be taken. Same result when disconnect another cable & reconnect previous one.

After resconnect all same result. No improvement.

T-Con Board pinture.

@oldturkey03 where are you, still waiting for your revert, Please share next step.

Answer this question I have this problem too

Is this a good question?

Yes No

Score 0

Add a comment

1 Answer

oldturkey03 @oldturkey03 Rep: 861.8k 1.5k 978 2.4k · Answer 1 · 2026-09-12T10:37:55-07:00

oldturkey03 @oldturkey03

Rep: 861.8k

1.5k

978

2.4k

Posted: Sep 12, 2026

Options

@surya48253 looking at the image you will see that the left and right half of the screen show different row distances. This could be a an issue with either the processor or the memory on the main board, the panel, or the T-Con board (less likely). Try this.

Unplug your your TV. Remove the back cover. Disconnect one of the ribbon cable going from the T-con board to the LCD panel. It does not matter if it is the left or the right ribbon cable as long as you only disconnect one. Then reconnect the power cable and turn your TV on. Let us know what you see. Then turn your TV off. Disconnect the power cable. REconnect the ribbon cable you disconnected from the T-con board. Disconnect the other ribbon cable. Reconnect the power cable and turn your TV on. Let us know what you see.

Once you have the back cover removed take an image of exactly what you see. We need to identify how the boards interconnect. Then take a picture of the boards and post those with your question. That way we can see what you see. Adding images to an existing question

Was this answer helpful?

Yes No

Score 0

15 Comments:

thanks for your reply, but i have only screw driver, can i open back cover with this.

Sep 12, 2026 by Surya

@surya48253 should just be held on by some Philipps screws and possibly some clips.

Sep 12, 2026 by oldturkey03

@oldturkey03 that's why I try find some disassemble video on this model but I didn't find. Tv is mounted on wall & it's very heavy. I worried if not fall or damaged when unmount. Let's try tomorrow .

Sep 12, 2026 by Surya

@surya48253 whenever you want to work on it. We'll be around :-)

Sep 12, 2026 by oldturkey03

Dear @oldturkey03 as per your instruction i open back cover , one by one disconnect both ribbon cable.

After remove 1st Ribbon cable from T-con board.

Then connect first one disconnect second one

Back picture:

Image

Example of removing cable from T-Con Board.

Image

motherboard :

Image