Question about Samsung LN-40A750 LCD TV

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Vertical lines of static started showing up on my LCD flat panel. It started a couple of days ago and is getting progressively worse.

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Check the Video amplifier section. Associated chip or components.

Posted on Sep 11, 2009

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Posted on Jan 02, 2017

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If you wish to get some details; check 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.

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If you wish to get some details; visit the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/
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.

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Tv guide doesn't work anymore


I have a Sony model KDL-32BXR6 that the TV Guide first showed no listings this past weekend. Last night when I entered the Guide the screen displaying the Setup/Display Setup Progress came up stating "In Progress". Same thing this morning. Something must have changes with the input signal if this occurred with two different sets.

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1 Answer

Vertical lines in picture


The machine is still under warranty from samsung so I would call 1-800-samsung to find the nearest service center. Problem could be caused by a bad main board, bad lvds cable or a defective t/con board or lcd panel.

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My 52inch xbr4 tv is 2 years old. Intermitently over past 2 months, when I first turned it on, I get thin vertical lines and double imaging especially over left half of screen. After a few minutes it would...


I have the same issue. Bought the TV 1/08 and it started showing those exact symptoms about 3-4 months ago. It generally progresses and gets worse. You can try to fix it as it's some kind of TAB connector issue, or keep calling Sony so that the 52" owners of the XBR4 and 5 series get the extended warranty just like the 46" owners received for the same series. If enough of us keep calling, they'll have to act.

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Toshiba 27WL46 27 in.LCD- Lines top of screen getting worse.


If they are vertical lines, then the LCD panel is going bad, it will get worst with more lines appear as time goes on.

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1 Answer

Vertical black line on the left side of the


it means the lcd panel is failing you will need a new one at a appox cost or 1500 dollars it is covered under warr

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1 Answer

Vertical Lines on Sony Bravia TV.


I'm afraid, its problem of LCD Panel (screen).
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1 Answer

Samsung LN-S4692D - Vertical lines (>15) & static on screen


this sounds like a scan board gone ,, if you check ebay youll see two things,
1, other tvs for sale with the same fault (It might give you a clue to the fault ie , which board )
2, the same tv as yours with a broken screen ,

i dont know how good you are with taking things to bits but i personally would buy the tv with the broken screen and start swapping over the internal boards ?

Have you checked your home insurance policy for broken tv,s
it may have fell of its stand when you were'nt looking?

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