I have a Samsung LN46A650 LCD TV and recently I started getting a white line across the top of the screen. Sometimes the white line is thicker on the left side of the screen. Sometimes after the white line appears at the top, the screen will go multi color and sometimes it will just go black. To correct this problem, I have been turning the TV off and back on again and the problem will go away. Seems that powering the system off and back on again fixes the white line at the top of the screen. Is this a board problem?
Thanks for the info, just ordered the part. I will check back end with the results of the replacement T-Con.Thanks for the info, just ordered the part. I will check back end with the results of the replacement T-Con.
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Re: I have a Samsung LN46A650 LCD TV and recently I...
Yes, it's the t-con board, a well know problem in this tv. Here it is http://www.partstore.com/Part/Samsung/Samsung/LN46A650/Samsung/Samsung/BN8101697A/New.aspx
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Jan 7, 2010 - 26 posts - 15 authors
Hi, I have a Samsung LN40A550 LCD TV which I have had for just over a year. ... I was watching TV yesterday and all of a sudden the picture went all. ... started makinga very high pitched buzzing sound with no picuture coming on. We did have a bunch of green vertical lines, but now just a black screen.
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.
Type in the brand name of your device, in the search box [at the top right] of the display window and the Search will start at once as you type in, and will show you all the related posts. It will make surf easy.
without a standby error code or maintenance mode fault detection code, it's hard to say.
if you are looking for possibilities, then start with targeting the Ysus board as a possible culprit along with the Zboard buffers. the band would lead me to think buffers are having issues.
What is the issue with the TV? A defective T-Con board symptoms are half screen image and strange colors. Often lines in the screen are not the T-Con, but a bad LCD panel. A good supplier of Samsung parts is Tri-State Module. You can ask their technicians for advice as well. Good luck.
Thanks for the info, just ordered the part. I will check back end with the results of the replacement T-Con.
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