Samsung LN40A650 horizontal line on the bottom

[guillermogc]

Hi,

I have a Samsung LN40A650 lcd tv that has been giving me some problems lately.

At first what it did was sometimes not powering on the screen, but the sound did. So I had a black screen and sound working (with the red led flashing a lot).

Now image is working but I always have an anoying horizontal white/purple line at the bottom of the screen.

I really don't know what to look for. Obviusly my warranty expired a couple of months ago.

Anyone who could help me figure it out?

Thanks!

[SpotTheCat]

For me, those symptoms have meant input issues. I would start there.

[guillermogc]

For me, those symptoms have meant input issues. I would start there.

NO, it isn't an input problem. It is always on the screen wether there's an input or not. With a/v, s-video, cable or even hdmi and vga (hi/low res).

[guillermogc]

Now it is working fine.

What I did was first leave it unplugged all night long. That didn't work.

Next I've open it and done a visual inspection. Nothing to see either.

So... with nothing else to do, I disconected every plug inside the TV and pluged them again. To my surprise that did it. I don't know if it was just luck, if it was something that needed to be unplug in order to reset itself or something else. But for now my tv is working again correctly.

I hope this could help someone in the future.