Hello all, first time poster here. The screen is faint white and photo negative. I can see the OSD, but it is also faint. Apparently this is common with this model, as seen here:
http://www.jkturner.net/samsung/index.html
or here
http://www.youtube.com/watch?v=UEfa-vjTeTI
I know that's a different model but it's the same problem. I also found this on another site:
"Video will intermittently turn mostly white. White display with a faint image of osd and video in the background. Video will intermittently turn mostly white with the osd barely visible in the background. Even a black image or when the panel should not be showing any video, it is white.i found that one of the sub-boards inside the panel, the boards that the ribbon cable from the t-con connect to, are not seated properly and the larger smd capacitors on the board are intermittently making contact with the metal frame of the set, effectively creating a short to ground. This is one of the panels that is mounted upside down, so the stand mounts just below and behind the panel frame. Any slight pressure from the stand can cause the frame to make contact. In many cases, the tv can be slightly flexed to make this issue occur."
I tried to check for shorts and didn't seem to find any, but I went ahead and temporarily insulated the metal frame just for testing, and there was no change. From what I've read in these forums it seems that it could be the tcon, or maybe the tcon isn't getting the right voltage? Can I eliminate the tcon as a suspect with having to buy one to test? I also read about a potentiometer on some models that may help. I think there might be one visible through the frame, but I'm not sure.
I've got a cursory knowledge of soldering, but I am eager to learn, so I'd appreciate any help. Thanks!
http://www.jkturner.net/samsung/index.html
or here
http://www.youtube.com/watch?v=UEfa-vjTeTI
I know that's a different model but it's the same problem. I also found this on another site:
"Video will intermittently turn mostly white. White display with a faint image of osd and video in the background. Video will intermittently turn mostly white with the osd barely visible in the background. Even a black image or when the panel should not be showing any video, it is white.i found that one of the sub-boards inside the panel, the boards that the ribbon cable from the t-con connect to, are not seated properly and the larger smd capacitors on the board are intermittently making contact with the metal frame of the set, effectively creating a short to ground. This is one of the panels that is mounted upside down, so the stand mounts just below and behind the panel frame. Any slight pressure from the stand can cause the frame to make contact. In many cases, the tv can be slightly flexed to make this issue occur."
I tried to check for shorts and didn't seem to find any, but I went ahead and temporarily insulated the metal frame just for testing, and there was no change. From what I've read in these forums it seems that it could be the tcon, or maybe the tcon isn't getting the right voltage? Can I eliminate the tcon as a suspect with having to buy one to test? I also read about a potentiometer on some models that may help. I think there might be one visible through the frame, but I'm not sure.
I've got a cursory knowledge of soldering, but I am eager to learn, so I'd appreciate any help. Thanks!
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