Sony KD-55XG9505 lines on screen problem

[Chrissygizmo]

Hello again everyone,

This is my latest mission, to try getting this Sony tv back to normal working order…

I've only just got it today, when you power it up everything is as should be, in fact it works perfectly for a few minutes then the screen starts getting horizontal lines on & eventually the full screen goes back, I will upload photos of the problem & also some photos of the board etc. You might notice that I'm busy trying the tape method, I'm not sure exactly where the clock lines are so I'm just guessing & hoping for the best lol . I've already tried removing the LVDS leads & cleaning the contacts with a pencil rubber but the problem still remains

[Chrissygizmo]

do

[lotas]

To determine which side creates this defect, you need to install a jumper on the t-con between points FB331 - FB332. then disconnect one cable from the t-con to the panel and check this defect with the panel, then check with the other half by disconnecting the other cable....

[lotas]

CKVs are in this area.

[Chrissygizmo]

So what do I need to do ? Solder a wire between FB331 & FB332 , then remove 1 side of the tcon at a time then on the broken side do the tape method?


sorry to probably repeat everything you've said but I'm just getting it correct in my own head if that makes sense haha

[lotas]

Yes, we understood everything correctly.

[Chrissygizmo]

I know it's absolutely hideous soldering, but I only have an old butane soldering iron at hand at the moment, I should of waited until tomorrow to use my proper tools but I'm really impatient.. You know what they say , a bad tradesman always blames their tools 🤣🤣

[Chrissygizmo]

I will update soon , thank you

[Chrissygizmo]

Here's the results, is it the same side of the tcon board as the lined side off the screen that I need to tape ?

[Chrissygizmo]

Oh , also, do I need to remove the jumper before trying the tape fix ?

[lotas]

Oh , also, do I need to remove the jumper before trying the tape fix ?

You don't have to remove the jumper.

It's better not to use such a soldering iron (torch), you'll kill your t-con!