My Samsung LN-S4695D 46" lcd HD Tv is having a bit of a problem. After the tv has been on for a little while it will with no warning get a bunch of vertical lines of all colors across the entire screen. They vary in width from about 1/4" down much smaller. They will usually stay on the screen for about 10 seconds and then the screen goes black except for a green box about 10"x15" in the upper left corner of the screen. The entire unit then powers off and after a couple of minutes you can power it back on. It is hooked up to a HD satellite box hdmi. However it does the same thing when I am playing my PS3 which is hooked up component. Any help, or do I just need to have it repaired.
If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
Search the site by type in the "BRAND NAME" of your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts..
SOURCE: vertical lines across my entire screen
My 42" Samsung Plasma HDTV HP-R4252 has a 2" vertical strip of green pixels down the right side of the screen.
My 3 year warranty with Circuit City expires in Nov 2008.. so I hope I'm covered.. can't call until the morning.
Samsung said it might be a logic board problem.. but they want almost $2000 to fix. I might as well buy another TV if Circuit City can't fix it.
SOURCE: Vertical lines in LCD tv screen
Need to check the two things.
1st -- need to exchange T-con Board.
2nd -- need to exchange the cables between T-con & LCD panel or
between T-con & Main(LVDS cable)
SOURCE: vertical black lines in samsung lcd tv
Hi,
Hardware related, needs an engineer as not a simple fix.
Thanks
SOURCE: LN-T4671F 46 in get loud clincking sound when tv
power supply is probably about to fail. will probably start to cycle on/off by itself.
There's very little chance of an LCD TV having a "60 cycle hum". That problem was a hazard of CRT TVs and is rarely seen on LCD TVs and even when it is, it's mainly a problem with the RF feed and not the TV itself.
Try hooking up various inputs one at a time. For example try component input from a VHS tape player. Then try HDMI input for a HD player (Blu-Ray or HD-DVD). Then try a computer hooked up to the VGA input (set your video output on the computer for the native resoilution of your TV). Make sure you have the inputs selected correctly for each source.
The standard "refresh" rate for your TV is 60 Hz but that is a bit of a misnomer as LCD TVs don't used a raster scan for their display so their "refresh" is typically measured in miliseconds, in your case it is 8ms.
Your problem could be a power supply problem or if the lines are static, it could be an addressing problem in the ATSC decoder chip.
There are many other possiblilities but with more data on your symptoms, I wouldn't like to guess.
Hope this helps.
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