Question about LG 42LC2D 42 in. LCD HDTV

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I have a 42LG20-UM that is having some issues. On the right side onf the TV the color gets distorted and there are shodows of the images from the show we are watching at the time. Now over a period of time it eventually goes back to normal but as soon as it is shut off it starts over. It started out as only a slight part of the right side and has progressively moved across the TV from right to left.

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  • Expert
  • 67 Answers

Try degaussing its in the menu

Posted on Aug 02, 2017

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

mfspencer
  • 58 Answers

SOURCE: LCD picture distortion.

This is caused by a failure of the main board. The failure causes the refresh rate of the unit to be off creating a trailing or ghost effect. This will require a technician to replace that board though. Hope this help.

Posted on Apr 02, 2008

  • 5 Answers

SOURCE: LG 50px10 loud noise & then color and image quality loss.

call 877-543-8325 this is an LG Executive call center and they will fix this for free. I have a 50" plasma I bought january 2006 which is out of warranty by 5 months. They faxed me and the LG repair shop a 30 day warranty for my tv to cover the repair. Just tell them you heard a pop and in my case the picture is distorted. All they need is the model number and serial number and they should take care of it. No arguing needed.

Posted on Jun 03, 2008

DRACO A5OG
  • 22 Answers

SOURCE: Intermittent picture, blue line

I have a Vizio P42HD but once it is taken apart, it is all LG components.

It is your Power Control Board 6871qch038a. The solders are so small it isn't worth trying to re-solder.

Spoke with PartStore.com, rep stated 6871QCH038C (038C) is the superceded replacement for the defective prone OEM 6871QCH038A (038A). They and others offer the 6781QCH060Q (060Q) for $50 - $100 more. I opted for the 038C, but I was concerned about the title of the part which states "HAND INSERT"... PartStore.com rep stated it is in fact a board and there is no soldering needed, just "plug and play". DONE, paid only $120.95 + next day shipping for $29.95.

Since I took the TV apart before, it was a breeze and took about 2 hours, start to finish.

Important note, remember to remove the two 1" square spunge type heat sinks/pads the new board needs those for a proper installation and protection of the certain component.

Also you need two small zip ties to replace the ones you are going to clip off.

Added Bonus, the new board fixed other issues:

1. At times I would get a squeegly red line go across the screen. I thought it was the source (cable) but it is gone now.

2. Screen Shift, when I use the XBox for Games or DVD/HDVD the screen would shift. Very annoying, prior to swap out, recently the screen started to shift watching cable. Now it is no-longer an issue.

I am really pleased with my DIY repair and wanted to share.

The damn Vizio Out of Warranty Service wanted $360 for a service call which included the part for $125 plus they take my bad board for exchange.

6871QCH038C $120.95 http://www.partstore.com/Part/LG+Electronics+Incorporated/LG+Electronics%2fZenit h/6871QCH038C/New.aspx
Over Night Shipping #29.95
DIY FREE biggrin.gif

Posted on Dec 31, 2008

  • 1 Answer

SOURCE: Hi there I have just purchased

trumotion on or off.. try adjusting the blur and judder setting in the picture menu...

banding is common on this set during panning scenes, but it sound like you are descibing trumotion artifacts.

Posted on Oct 09, 2010

  • 8457 Answers

SOURCE: when my LG 42inch LCD tv is off for a while and

This problems it is the causes by the board that call the T-CON decoders board,this board sit at the bottom in the middle of the LCD screen panel.This T-CON decoders board is started dying to causes these problems or the fibers opotic cable connections is loses or frail damges to causes slightly signal tranmittion from the T-CON decoder board to the LCD screen panel.Just used the tv,when the problems is there for good.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish T-CON decoders board for the replacement.

Posted on Jan 27, 2011

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1 Answer

Right side of screen distorted


if the distortion looks like sideway lines with weird trails and double images its most likely a tab bond issue. If its straight vertical lines then its likely the Tcon

Mar 29, 2012 | Samsung LN46A550 LCD TV

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How can I fix a 42lg20-um with a faded screen?


The faded screen(if you mean faint image) is due to failed backlight inverter board. THe backlight is sealed behind the LCD paneland lights up the image . Replacing the inverter board should resolve the problem. In sets of this size there are usually master and slave inverters. Let me know if you wish to fix it yourself so that I can give you the instructions.

Sai.

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Half screen is blank 42lg20 or 42lg50 when


This is likely to be the T-con board. If the entire screen glows but you have no picture on the second half of the screen then it is the main board, not the backlight inverter. If the screen is half picture and half gray it is the T-con board.


Replacement of one of the above will fix the issue.


Please rate if this helped :)

Mar 07, 2011 | LG 42LC2D 42 in. LCD HDTV

1 Answer

I have some dark shadow on the right side of the TV screen, I think it could be the lamp, is that true?


No,colors misalignment,shodows pictures and 3D pictures are not cause by the projection lamp.It cause by the tv convergence board have 2 STK convergence ICS and some or all it resistors are dead.The shop will cost u $300-350 for the parts and labors.

Jul 07, 2010 | Zenith D52WLCD 52" Rear Projection...

1 Answer

The right side of the TV has shadows/distorted images and colors


Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projeciton sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some photos of convergence problems.

42d3683.jpg

7859b01.jpg

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Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

Jan 22, 2010 | Samsung PCL545R 54" Rear Projection...

1 Answer

Samsung HCN4727W Rear Projection TV, green screen, audio works


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai2_bing.gif,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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hi 
try and scan the doc to your p.c first. If this is ok print the doc on your colour printer.
each brand of machine uses different ways to get colours, and yours do not match 

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