Re: Samsung PN50C550G1F black horizontal lines

Confirmed that the panel is the cause of my set's black line. Interestingly, the line that failed is *exactly* where the chrome browser bookmark bar ends. We use a HTPC, so the browser window is often up and it goes from almost white to black right where the failure is. Seems an unlikely coincidence.

Re: Samsung PN50C550G1F black horizontal lines

I have single black line about 2 inches from the top on a Samsung PN50C550, made 2010. It showed up after about 16,000 panel hours, mounted on a wall. I found a video on youtube ([url]https://www.youtube.com/watch?v=SoZxCu83tV0[/url]) that demonstrates what is causing the single line failures - burnt out traces, apparently after the ribbon and under the glass (And here we've been blaming the ribbons!) We can only speculate on the reason... redox? electromigration? silicon nodules from thermal cycling? End of the day, it's an unfixable,...

Re: New Members - please post your introductions here

Hello,
I've been putting computers together from scratch since 1997 and remember overclocking a 120Mhz chip to 133 as a "big deal". I usually take a stab at fixing things most people would throw out. Shooting about 50% career-wise... just like Shaq!