Question about Samsung LN-T4661F 46 in. LCD HDTV

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A HD tv channel pic, the bottom half is good, top half is a lined, fuzzy pic!

Hi. First time ever, I dozed off early morning, woke up and the HD tv I was watching had a good bottom pic but the top half was a diagonally lined bright orange color!

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  • YABBY Jun 21, 2008

    So, WHERE IS THE SOLUTION??? I got 2 emails from the GEEK SQUAD stating there was a solution to my problem...I clicked both links and there's NO solution mentioned anywhere!

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6 Suggested Answers

SOURCE: Purple and white distorted fuzzy lines running up and down and side to side on tv

I just had my lower Y-buffer board swapped out to fix a problem similar to yours. After an hour and a half of on-time, the lower half of the screen would flicker on and off with the same appearance you mentioned. Changing out this particular board fixed it for me. However, since it has gone from top to bottom on your set, it may be more of a main board problem for you (that controls both upper and lower halves). Beyond this, I don't know any more. I am considering getting a service manual to gain more knowledge about the various PCBs in the unit so I can fix any future problems myself.

Posted on Aug 27, 2007

lukster
  • 217 Answers

SOURCE: screnn going blank

sounds like sky tv issue, try different cabling

Posted on Aug 03, 2008

  • 98 Answers

SOURCE: Horizontal Lines when Viewing HD TV

Would you please change the picture mode 4:3 or scan fit to 16:9?

Posted on Feb 06, 2009

romsky79
  • 822 Answers

SOURCE: Samsung Plasma Lines and Colors on Screen

yes it can fix. its only loose connections from LCD connectors. trust me. romsky79@yahoo.com

Posted on May 29, 2009

  • 257 Answers

SOURCE: samsung lns4051d 40in has horizontal lines across

This sound likes the incoming signal is week. You should play a DVD player to see if the problem stays same or not.
If you try all sources ie HDMI, AV Component, etc...the TV show the same problem. There are two possibilites: T-Con board or main board need replacing. You should need technician to figure out the problem. Hope it help.

Posted on Aug 13, 2009

Testimonial: "Thank you! I'm a do-it yourselfer. Good info!"

  • 5 Answers

SOURCE: Samsung Plasma TV has horizontal lines of colored dots

I have the same problem, currently searching for a solution. Have you resolved your problem yet? Looking to repair myself, any tips or ideas that you have/expirenced would be greatly appreciated. Thanks, Todd

Posted on Dec 22, 2009

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Hi - welcome to Fixya,

There is no advantage in buying a Full HD (1080p) TV if you are only using it for watching TV. Currently, there are no Full HD television broadcasts and there are no plans to introduce any. All UK HD channels currently broadcast in 720p resolution whether they are on Sky, Freeview, or Freesat. Therefore, any TV that is described as 'HD ready' rather than 'Full HD' will display all HD channels at maximum quality or resolution.

The advantage of Full HD is when using them with Blu-ray DVD players, gaming systems, e.g. Sony Playstation, or for playback of media files from your PC. These systems output at 1080p / Full HD (but only when connected with an HDMi cable) and you would need a full HD TV in order to get the best quality / resolution from these systems. However, you don't need a Full HD TV to connect these devices as they can all display their output on a 720p HD Ready TV.

The main disadvantage of any HDTV (1080 or 720) is when watching standard definition (SD) broadcasts. Full HD TVs have 1080 horizontal display lines, but SD broadcasts only have 540 horizontal lines. When watching SD channels on an HD TV, the other 540 lines, i,e half of the picture, are being created by software within the TV - known as 'Upscaling'. Upscaling requires processing by the TV which takes time and fast motion can seem blurred or blocky/pixellated as a result. Higher end TVs have faster response times (0.5ms or less) which minimises the pixellation so this specification is important when selecting an HD TV for purchase.

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Green line


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Purple and white distorted fuzzy lines running up and down and side to side on tv


I just had my lower Y-buffer board swapped out to fix a problem similar to yours. After an hour and a half of on-time, the lower half of the screen would flicker on and off with the same appearance you mentioned. Changing out this particular board fixed it for me. However, since it has gone from top to bottom on your set, it may be more of a main board problem for you (that controls both upper and lower halves). Beyond this, I don't know any more. I am considering getting a service manual to gain more knowledge about the various PCBs in the unit so I can fix any future problems myself.

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