Re: Samsung PN50B450B1D showing evenly spaced vertical lines

***FIXED!!*** It was the logic control board...a $15 part! Thanks for all the help.

Is there any way to edit the thread title so that when people are scrolling through they can quickly see what the fix was?

Re: Samsung PN50B450B1D showing evenly spaced vertical lines



In case it wasn't clear, the section of my message quoted above should read "I'm able to get either the Master OR LOGIC test patterns.

Martino, I'll give what you said a try!...

Re: Samsung PN50B450B1D showing evenly spaced vertical lines



I followed the instructions in the powerpoint. The menus and options on my TV were different then the powerpoint. Attached is what I found.

Control -> PDP Option -> and no way to get to the test pattern.

Going back to Control -> Test Pattern -> I'm able to get either the Master of LOGIC test patterns. The lines appear on both test patterns (I included one from the LOGIC pattern test. The horizontal bars are just distortion from the camera. It actually appears...

Re: Samsung PN50B450B1D showing evenly spaced vertical lines



I'll give this a try! As an aside, about how long does it take the capacitors to discharge so I don't end up frying myself?...

Re: Samsung PN50B450B1D showing evenly spaced vertical lines



tw2005, here is the full post I was referring to (from capkid):



I've also attached a picture of the image produced on the screen. The lighter colored lines are more apparent, but if you look closely, you'll see the darker (reddish) lines in between each set of lighter colored lines....

My TV started showing evenly spaced, vertical lines across the entire width of the display. Just eyeballing it, I would say the lines are about 1 inch apart and 1 pixel wide. They are always in the same place, appear stationary, and appear over the top of the TV menu. They also appear on all inputs. When looked at against a lighter colored background, they alternate between a subtle green and subtle red.

I've referenced a post from "capkid" that point to the logic control board. I've taken a picture of the TV with the back off and a zoomed in picture of what I think is...

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Hi