Have a samsung LNT4071FX model lcd. Left side of screen is dark when first turned on, reachs about mid way through screen. The darker area has some shadowing too. As the set warms up the dark area will flicker in an out until it goes away after 30 mins of use. I first thought it might be a tcon issues, but did a little research and dont think it is it. Looking for the first area to troubleshoot to determine if it is the lcd or one of the boards that is going bad. The Menu seems to show up correctly at in the two attached pictures.
Samsung LNT4071FX Dark Side Screen Flicker
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Last edited by PlainBill; 08-15-2011, 07:36 AM.For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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Re: Samsung LNT4071FX Dark Side Screen Flicker
Have a samsung LNT4071FX model lcd. Left side of screen is dark when first turned on, reachs about mid way through screen. The darker area has some shadowing too. As the set warms up the dark area will flicker in an out until it goes away after 30 mins of use. I first thought it might be a tcon issues, but did a little research and dont think it is it. Looking for the first area to troubleshoot to determine if it is the lcd or one of the boards that is going bad. The Menu seems to show up correctly at in the two attached pictures.
PlainBillFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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Re: Samsung LNT4071FX Dark Side Screen Flicker
Like PlainBill said T-Con or Panel. Unfortunately, from my experience it is a bad connection on the panel itself and more than likely has nothing to do with T-Con. This failure of the panel is actually a fairly common occurence on Samsung panels.Comment
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Re: Samsung LNT4071FX Dark Side Screen Flicker
So is there a possible fix, like applying pressure to lcd connection? I've read up on some of the tab bond issues and wonder if that could at least extend the life a few more months.Comment
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Re: Samsung LNT4071FX Dark Side Screen Flicker
Not sure if I can call it a fix, but the screen is working perfect again. I took the metal housing off the panel and found the left hand side was flopping away from the metal bracket. Seems like the glass screen is glued to the metal and this left side has come off. Also traced the poor connection to the left most ribbon cable running from the top of the panel to the screen. I added a couple pieces of a firm but squishy foam to the inside of the outer metal bracket and that has created sufficient pressure to hold both the screen and the ribbon cable in place. So far so good. Just wonder how long it will last. Thanks for all of the help.Comment
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Re: Samsung LNT4071FX Dark Side Screen Flicker
Not sure if I can call it a fix, but the screen is working perfect again. I took the metal housing off the panel and found the left hand side was flopping away from the metal bracket. Seems like the glass screen is glued to the metal and this left side has come off. Also traced the poor connection to the left most ribbon cable running from the top of the panel to the screen. I added a couple pieces of a firm but squishy foam to the inside of the outer metal bracket and that has created sufficient pressure to hold both the screen and the ribbon cable in place. So far so good. Just wonder how long it will last. Thanks for all of the help.Comment
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Re: Samsung LNT4071FX Dark Side Screen Flicker
Hey musjim!. I gotta give it to u. I had the same exact issue with my TV. I applied your method and my tv is running fine again. Those Lnt 4071fx where one of the best samsung tv made atthe time unfortunately came with the default lcd and bad power supply. Thanks againComment
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Re: Samsung LNT4071FX Dark Side Screen Flicker
Not sure if I can call it a fix, but the screen is working perfect again. I took the metal housing off the panel and found the left hand side was flopping away from the metal bracket. Seems like the glass screen is glued to the metal and this left side has come off. Also traced the poor connection to the left most ribbon cable running from the top of the panel to the screen. I added a couple pieces of a firm but squishy foam to the inside of the outer metal bracket and that has created sufficient pressure to hold both the screen and the ribbon cable in place. So far so good. Just wonder how long it will last. Thanks for all of the help.Comment
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Re: Samsung LNT4071FX Dark Side Screen Flicker
Please make new thread, with make, model, and good clear pictures.Last edited by budm; 07-08-2014, 02:06 PM.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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