Samsung LN52A- Vertical lines- Not T-Con

[moegilla]

Sup fellas/ladies been a while.

I have a Samsung LN52A550p3f with vertical colored lines in one section. Replaced the T-Con board. No Dice. Re-seated and switched the flat cables to see if if was one of them, no dice. So its the panel right? Anything that can be done? I've read that one of the little caps or resistors integrated into the board that attached to the panel could be the problem and wiring around them could solve the issue.

So here are a few pics. I completely disassembled , have the panel out on chairs as you can see. I have a multimeter but im not much of an electrician. I was attempting to get readings across resistors but not even sure if I was doing it correctly.

Thanks in advance!

[tom66]

Re: Samsung LN52A- Vertical lines- Not T-Con

This is almost certainly a bad LCD panel.

[moegilla]

Re: Samsung LN52A- Vertical lines- Not T-Con

any potential fixes?

[tom66]

Re: Samsung LN52A- Vertical lines- Not T-Con

Probably not. I expect the IC on the tab bond has failed, which would not be repairable.

[tibimakai]

Re: Samsung LN52A- Vertical lines- Not T-Con

If you are touching the ribbon cables at the top of the panel and the lines are changing, then probably can use bud's method, but it's very hard to make them all disappear and to stay that whey, while you are putting it together. There are no guaranties that it will last.

[tom66]

Re: Samsung LN52A- Vertical lines- Not T-Con

The inputs, at the driver board, are usually uncorrelated to pixels. Just overall data for the block of pixels that IC drives. So any pressure there is actually pressure on the IC itself making the problem go away, possibly like BGA-bonding problems with Xbox 360 / PS3.

[snake91876]

Re: Samsung LN52A- Vertical lines- Not T-Con

I beat my brains out trying to fix a 46 like this and eventually figured out it was a bad lcd panel. I could never change the picture pressing on the tabs anywhere. Mine would come on and heat up and get worse and worse.