Question about LG 47LD450 47 in. TV

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Lg 47ld450.ua line horizontal 1/4 down from top and down center picture still appears but screen flickers every few seconds sound good still what could it be 6 years old

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  • 195 Answers

The video processor is an issue. Is the picture quality ok otherwise, in which case it can be repaired fairly easily.

ELECTREPAIRUSA@ELECTREPAIRUSA.COM

Posted on Jan 06, 2017

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Posted on Jan 02, 2017

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SOURCE: Black horizontal line 1 pixel high

Depends on what area the line is in the bottom half or top?

Posted on Mar 10, 2008

  • 2 Answers

SOURCE: Samsung HP-R4252 42 in. HDTV screen black outs and red lines

Hi: We had this problem under warranty, and tech installed the following to solve it: Parts BN96-02033A, BN96-02034A and BN96-02216A. This solved the problem for 2 years. I now have the upper half going black now and then for 2 to 3 seconds. I am ordering these parts from www.partstore.com and will just plug them in. Better than a new tv.

Posted on Aug 16, 2008

mistersony
  • 320 Answers

SOURCE: Lines on tv screen

Both sound like bad LCD panels. The following must be answered to confirm this:
Do the lines appear on all inputs/all signal sources?
Can they be seen in the OSD/menu?
If yes to both questions, it is likely that the LCD panel is bad

Posted on Oct 20, 2008

  • 1 Answer

SOURCE: Phillips 50 inch Plasma

Philips 50 inch plasma tv no video but has sound

Posted on Sep 21, 2009

  • 1 Answer

SOURCE: Samsung HPR4252 with red horizontal lines accross the screen

I just had my HP-R4252 repaired on 12.05.09 with a similar problem. The picture is covered in horizonal, broken lines and the color is predominately red. They lines are grouped together in large bands across the screen.

The tech replaced the Y-Buffer boards (Up) and (Low) in about 20 minutes.

Samsung BN96-02034A BOARD, Y BUFFER UPPER ASSY
Samsung BN96-02216A BOARD, Y LOWER BUFFER ASSY

Posted on Dec 06, 2009

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1 Answer

LG TV Flickering horizontal lines


The TCON board or the LCD panel is faulty. Can confirm By replacing the TCON board
If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/

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Check and replace the damaged CCFL lamps at the back-light section. Contact any service technician. 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.

Nov 03, 2015 | LG Televison & Video

1 Answer

I have a LG led tv that has no sound or picture. Occasionally a white horizontal line appears at the top. It is a 47LV5500-UA. It powers up, click of a relay and the light  dark


Fault to its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

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It could be 1 of 2 things, either your monitor is going out on you, or your graphics adapter is going bad. Depending on how long ago you purchased it, and from whom, I would contact Dell service to find out if they can return it, or give you any suggestion.

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1 Answer

TH-42PX75U horizontal lines (flickering black and white)


The controller board for the screen is going bad. check shopjimmy.com for replacement parts. It's not a difficult job to do. Once the back of the TV is removed, you'll see it near the center of the screen.

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1 Answer

47LD450 LCD tv has green line down middle of screen


Sorry, you can try reconnecting connectors on T-con board (small rectangle board at top center under metal shield)if you are lucky, but it is likely a panel failure. It won't hurt to watch it as it is, if it doesn't bother you

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Lg mod 26lg30-ua picture is too dark and brightness adjustmen does not help


I suspect that you have a backlight issue. The backlight is not getting sufficient voltage usually due to a malfunction of the 12V line on the power supply board of the tv or a faulty backlight inverter board. This issue cannot be narrowed down any further without testing it. So if you are handy at fixing electronics stuff and know how to use a multimeter then let me know and I will guide you.

Apr 04, 2011 | Televison & Video

1 Answer

No Blue. Horizontal Lines.


Not to me, but it also depends on if you could do this yourself or not. And the area you are in sometimes is responsible for the cost being high.

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1 Answer

Screen split with black bar through center, top of picture shows in bottom


It sounds as you desribe, the vertical output IC and or the b+ feed capacitor off the Hi voltage transformer feeding the vert. IC its required voltage. Not a really hard job to replace, but not for a handi person to do. This should be left to the professional, as there are no user serviceable parts inside this set and with the HI voltage and the safety issues its best to call somesone to assist you with this repair. Good Luck

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