LG 42LC2D 42 in. LCD HDTV Logo

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Anonymous Posted on Oct 06, 2017

LG LCD TV is only displaying scanning bars of colour

My LG LCD TV (Model LG42LH3000) screen stays black, then flashes thin lines or thick bands of colour before finally coming on after up to 40 minutes warming up - although lately it's not switching to normal viewing at all. If the picture does restore, it can often have a green glow to it. This happens on all inputs. Sound works fine. Any ideas?

1 Answer

insainlewey

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  • Posted on Oct 06, 2017
insainlewey
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Is the TV in some sort of case? Like an entertainment center. Sounds like it's overheating. If you do I would try to move it and see if it still does it.
Maybe set it on a stand outside of encasement.

5 Related Answers

David Low

  • 458 Answers
  • Posted on Jun 30, 2009

SOURCE: LG 50PG3000 SOUND BUT NO PICTURE

This sounds like a screen problem, possibly the internal connecting cable (LVDS) which connects from the main board to the screen may have become loose. If not a replacement screen would be required.

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Anonymous

  • 1 Answer
  • Posted on Sep 28, 2009

SOURCE: LG RU-42PX11 42 plasma TV has black bar

it seems to be a bad connection somewhere but I disconnected the ribbon cable and got a verticle line of snow instead of a blank line. the line is about 34 mm wide and starts 285 mm from the left edge starts on the Blue and goes to the Red pixels. so if they are 1mm wide that would be 34 bands of color.

I would sure like to figure out the solution to this one or I got a TV I need to throw away cause the o'lady is gonna bust my balls if I can't fix this!

LG help guy

  • 112 Answers
  • Posted on May 24, 2010

SOURCE: LG LCD TV - Buzzing Sound and Faint Horizontal Lines

From your description, the sound you are hearing is the inverter(s) that drive the back light for the LCD screen/module.
The inverters mounted on the back side (one lower right and one left side) of the LCD screen/module. They are under the sheet metal cover/shields.
The inverters are going out and or the LCD screen/module is going bad too.
That LG TV has only a 1 year on parts and labor from the date of purchase, but you could call LG and ask for their help for such a new TV. They might do it under a warranty, for little or no cost to you.
I hope this information has helped you.
Good Luck.

Anonymous

  • 1 Answer
  • Posted on Jan 26, 2011

SOURCE: My LG model # 37LC2D

I am having the EXACT SAME problem. Mine started yesterday.

Anonymous

  • 145 Answers
  • Posted on Jan 26, 2011

SOURCE: My LG model # 37LC2D won't turn on. The green

Hello there,

I believe the Audio/Video Inputs/Outputs could be going out .

If you are using the HDMI try the Component cables and connections or AV cables with the S-video

if you swap the cables around and the problem is still there let me know and we try a few more steps thank you and don't forget to Rate

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