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How do i fix a sceptre 40" LCD HDTV that's got a distorted bottom half?

The bottom half of the screen does show the picture but it's got horizontal lines running through it with a sort of "ghost" effect of the brighter parts that linger for a while vertically. The label on the back says P/N: X405BV-FHD8HM20W02 S/N: B54X405BWS0461

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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.
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

Posted on Dec 02, 2016

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Posted on Jan 02, 2017

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Why half screen is ok, other half I.e. bottom part horizontal lines are seen.


Your LCD or Control Board is damaged. You can replace the LCD or the Board or have someone do it for you.

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My led samsung tv has a horizontal line and the upper right corner shows a white vertical lines


Not good. You may have a tab failure. A repair shop may be able to diagnose and repair this, but most likely the lcd panel is broken. The panel is the most expensive part of flat tv's. A new panel will cost more than a used tv.

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46in Vizio LCD HDTV distorted black picture when tv is turned on


Hi There are three things that can cause this problem. Your lcd screen, t-con board or the signal board. Most likelly in your case since you say it's only half the screen it's going to be your t-con board. You can try removing it and cleaning all the contacts and replacing it see if that helps. If that doesn't help then replace it. If that does not solve it then it's going to be your screen.

You can get parts at www.interliquidparts.com

Nov 28, 2011 | Vizio VW46LFHDTV10A 46 in. LCD TV

1 Answer

DP42647 On half of our 47 inch screen it is black and distorted when we first turn the TV on but after 30 or 40 minutes it finally just lights up and is fine.


Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish board that call the T-CON board for the replacement.This board sit in the middle at the bottom of the LCD screen panel.This T-CON board only job are to decodering picture pixels dots only before it show up to the LCD screen panel.

Jun 10, 2011 | Sanyo DP46849 46 in. HDTV

1 Answer

About 3 yrs old. Picture is distorted for about 1/2 hour until tv warms up. Now has horizontal lines going through the picture and stays distorted on the right side of the screen.


This tv problems it is alway the board that call the T-CON decodering board it is dying.This T-CON decodering board sit in the middle at the bottom of the tv LCD screen panel.This T-CON decodering board decodes all the tv picture dots pixels before it go into the tv LCD screen panel itself.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish T-CON decodering board for the replacement.

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I came across a Sylvania 6620LE 20 in. HDTV and owner said it had some display problem. Said I could have it if I wanted it. Took it home, plugged it in and it has picture and sound. After about a second...


Yes,this problems it is 90% is the problems and the causes by the T-CON decoders board.10% could be the LCD screen panel itself it is shorted and dead also causes this problems.Tries websites like Shopjimmy.com,Ebay.com also have and sell these refurbish T-CON decoders board too.Tries it u have 90% of sucessfull rate.

Dec 04, 2010 | Sylvania 6620LE 20 in. HD-Ready LCD...

1 Answer

Horizontal distortion, on the bottom half of the screen


By your description, you have a defective LCD. LCDs should have no linear distinctions and at best yours is having a problem with the inverter/cabling.

Reseat the cables, if using an adapter, see if you can try without one. Try a different video source. If issue remains, then have LCD serviced under warranty.

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1 Answer

Distorted picture


i was just working on a set with the same problem .. i found a east west correction curicit with a falty transistor. something in that cuircit has failed.

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