Random Vertical Lines on Samsung LCD TV

[tom66]

Re: Random Vertical Lines on Samsung LCD TV

Now, I understand the "shimming" quick fix for some issues with lcd lines. However if the problem is due to an intermittent connection, I would suspect that it would always be the same lines that are affected. Thanks for the susggestion though. I still like the fix suggested on one of the youtube videos. THe guy used a bat and tapped on top of the tv until the lines disappeard. If I had to do that, I would take a bat and take a full swing right in the middle of the panel.

It depends on the design of the panel, but different lines may be indicative of a T-con fault not a panel fault, as yes you are correct panel faults usually affect certain lines or the whole display.

Before you do decide to smash it, sell it to someone who can repair it.

[agbayh]

Re: Random Vertical Lines on Samsung LCD TV

Now, I understand the "shimming" quick fix for some issues with lcd lines. However if the problem is due to an intermittent connection, I would suspect that it would always be the same lines that are affected. Thanks for the susggestion though. I still like the fix suggested on one of the youtube videos. THe guy used a bat and tapped on top of the tv until the lines disappeard. If I had to do that, I would take a bat and take a full swing right in the middle of the panel.

[tom66]

Re: Random Vertical Lines on Samsung LCD TV

OK.. Thanks. So if the vertical lines changes location depending on what is being displayed, then the problem is likely upstream and most likely to be one of the logic boards (TCON, Mainboard) and not the Panel/TCP/Driver IC assembly. This is a great forum. So many helpfull people.

Not quite. Consider the T-con as "part" of the LCD. It controls the addressing of the pixels. It doesn't know what an OSD is, it just tells the LCD panel to display this or that given data from the main board. The panel could still be faulty. The good news is, there is a fix when the panels go bad. It works sometimes, it involves applying a bit of tape and pressure to the connectors, but it's not always a permanent fix.

The main board could still be faulty, but I would say it is less likely.

[agbayh]

Re: Random Vertical Lines on Samsung LCD TV

OK.. Thanks. So if the vertical lines changes location depending on what is being displayed, then the problem is likely upstream and most likely to be one of the logic boards (TCON, Mainboard) and not the Panel/TCP/Driver IC assembly. This is a great forum. So many helpfull people.

[tom66]

Re: Random Vertical Lines on Samsung LCD TV

Thanks PlainBill. I'll try opening this unit up and see. It's already broke, what is the worse that can happen other than electricute myself. I promise not to do that. I was suspecting it to be not the panel since the lines follow the overlayed OSD type display. The adventure begins. Thanks again.

The panel displays exactly what is sent to it, as does the T-con. Neither differentiate between OSD and video.

[agbayh]

Re: Random Vertical Lines on Samsung LCD TV

Thanks PlainBill. I'll try opening this unit up and see. It's already broke, what is the worse that can happen other than electricute myself. I promise not to do that. I was suspecting it to be not the panel since the lines follow the overlayed OSD type display. The adventure begins. Thanks again.

[PlainBill]

Re: Random Vertical Lines on Samsung LCD TV

Hi,

I'm new to these forums. I have a problem with my Samsung LCD TV. There appears vertical lines where ever there is text on the screen. See my picture attachced. I asked a local TV repairman and he said I have to replace the whole pane. Could this be fixed by replacing some kind of printed circuit board that drives the lcd panel? Thanks for all the help in advance.

It could be the tcon, it could be the panel.

PlainBill

[agbayh]

Hi,

I'm new to these forums. I have a problem with my Samsung LCD TV. There appears vertical lines where ever there is text on the screen. See my picture attachced. I asked a local TV repairman and he said I have to replace the whole pane. Could this be fixed by replacing some kind of printed circuit board that drives the lcd panel? Thanks for all the help in advance.