Originally Posted by delar
I have a 600M that has worked beautifully for the few months I've owned it. This morning, however, I noticed a thin black horizontal line running the width of the screen a few inches above the bottom edge. I've checked both HDMI ports using two separate sources and cables, and I've power cycled the monitor several times, but the line remains.
Because this line is very noticeable on full screen programming, I need assurances that this issue, whatever it is, can be easily remedied or will go away on its own. Any help would be appreciated. Thanks.
Further observation shows that it's not a solid black line but rather a dark
line about 3 pixels in width. These three lines of pixels are illuminated about half the amount adjoining pixels are lit. The also appear to change colors normally, so I can't say they're stuck. They're just dark, as if underpowered.
I've read around the web about black horizontal lines on plasmas and they usually mean a short or open in the panel itself. This appears to be a different symptom (dark, but not a completely black line). A bad connection perhaps?
Note: Also checked using a component connection to rule out an HDMI circuit problem.