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I have a Bravia KDL 40BX421 that suddenly has green vertical lines on the bottom 1/4 of the screen. These lines are in a background bar that is mostly a reddish shade.

The green lines fade in and out covering all to just a portion of the affected area of the screen. This happens on all inputs and after unplugging the set for 2 minutes. Is this problem economically fixable? I assune it is a control board. Can I purchase it and install it myself? Thanks, Pat

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Claude Kayser

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Posted on Dec 16, 2015

Claude Kayser

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Thin vertical lines cover screen on Samsung LCD - AVS Forum ' Home ...

www.avsforum.com/.../1127410-thin-vertical-lines-cover-screen-samsun...

Mar 7, 2009 - 30 posts - ‎25 authors
Hi guys, Ive had this TV for about a year now - all of a sudden thin vertical lines havecovered my screen (show in link below) No matter what ...Missing: 40bx421

TV Repair Help for Vertical & Horizontal Lines on Your TV ...

? 2:47
https://www.youtube.com/watch?v=b0sI7LB4cZE
Apr 25, 2014 - Uploaded by ShopJimmy.com
TV Repair help with troubleshooting lines on your TV Screen. ... hi i have a sony bravia mdel # KDL46EX523. i have horizontal multi colored lines ... My TV has the following symptoms: - Horizontal lines from top to bottom of .... thick(like 1-1/12 inch) and a couple of green vertical lines next to the black one.Missing: kdl ‎40bx421

Flat Screen TV Has Lines Going Through Screen - Possible ...

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Hi guys Ive had this TV for about...

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I have a sony bravia tv which i have had about eight years. four vertical lines have appeared in the bottom right hand area of the screen. one long red line one long green line. and two short lines on...

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

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This sounds like the power supply in the TV. It may be a bad capacitor or a bridge rectifier causing the problem. Get a volt meter and start making some voltage measurements. This may help find your problem.

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Check the main filter capacitors at its power regulator board. Replace if found bulged or damaged. Replace all secondary side supply rails' filter capacitors too. The fault is with damaged electrolytic capacitors at the power regulator board itself.

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My sony bravia kdl-46v3000 has a green line running vertically approx 1mm wide 1 inch from left side of screen. line tends to dissappear after time. happening for 2 days now.

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In most cases is the screen is covered with vertical lines all the way accross the screen then the T-Con module is at fault. The t-con board is replaceable without having to replace the entire LCD panel which would usually make it cheaper than replacing the TV. The part number I come up with is 1-857-213-11. Please take a moment to rate my answer. Thanks...

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It can be either the LCD controller board, or worst case the LCD panel, symptom of bad panel is vertical lines from the top to the bottom of screen, and it will get more lines as time goes by.
http://www.shopjimmy.com/catalogsearch/result/?q=Sony+BRAVIA+XBR+KDL-V32XBR1+

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Nov 24, 2009 • Sony BRAVIA KDL-V32XBR1 32 in. LCD HDTV

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There are 2 types of lines they may be showing, both requiring the replacement of the LCD Panel.

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In both cases, this will always show when the TV is ON. Even if there is no signal being input to the TV. There are other possibilities but these can be the most common. Both require a new panel.

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Apr 29, 2009 • Sony KDL-46XBR4 46 in. LCD Television

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I have a Sony Bravia KDL-46Z4100 46' I have a green vertical line on left side of screen

this is probly the lcd control module unfortunatley it comes with a new lcd panel
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Mar 10, 2009 • Sony BRAVIA XBR KDL-V26XBR1 26 in. LCD...

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I have a Bravia KDL 40BX421 that suddenly has green vertical lines on the bottom 1/4 of the screen. These lines are in a background bar that is mostly a reddish shade.

1 Answer

Claude Kayser

Thin vertical lines cover screen on Samsung LCD - AVS Forum ' Home ...

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I have a Bravia KDL 40BX421 that suddenly has green vertical lines on the bottom 1/4 of the screen. These lines are in a background bar that is mostly a reddish shade.

1 Answer

Claude Kayser

Thin vertical lines cover screen on Samsung LCD - AVS Forum ' Home ...

TV Repair Help for Vertical & Horizontal Lines on Your TV ...

Flat Screen TV Has Lines Going Through Screen - Possible ...

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