Question about LG DU-42PX12XC 42 in. Plasma HDTV

2 Answers

LG Plasma picture probles

I received this tv from my mother in law, who in turn inherited it from her brother who passed away. We are not sure if this worked prior to us getting it, or if we messed something up during transport. We have none of the cords, so i found a computer AC adapter, and plugged in that, and the cable. When I turned on the tv, the whole left side of the screen is rainbow vertical lines. The right side is fine, with picture and sound. However, when i do the menu, or anything, it's behind the vertical lines, so i can't see that either.
Is it fixable? Worth it? It's a 2005. Model number DU-42PX12X
Thank You

Posted by on


2 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.

  • Contributor
  • 6 Answers

Sounds like dry or broken solder somewhere or maybe a poor connection..could be a very cheap fox if you have the time to investigate!

Posted on Feb 03, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Hi there. I have this same TV, and the exact same problem. Last night, i was playing around with it, took off the entire back of it to see if I could fix it. After a few minutes of tinkering, I found that if I apply pressure to the TV in a specific way, the left side of the picture comes back. Here's what I did: standing in front of the TV, I hold the top of it, in the middle with my right hand, and the upper left corner with my left hand. Then, I gently apply pressure, forward (away from me) with my right hand, and backwards (toward me) with my left hand. Sort of like trying to "bend" the screen. At some point, the picture comes back .. . the problem is, if I let go, then the colored lines come back . . . maybe one can mount it on a wall in such a way that the pressure is still there . .. i haven't tried. That's all I got.

Posted on Jan 22, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Picture goes in and out

Looks like a problem with mother board. Call LG and they will replace the mother board in around Rs 7000/-

Jun 21, 2014 | LG 55LE5500 55 in. HDTV LED

1 Answer

I need the operation manual for brother d b2-b756-5

contact these sits & ask them about the manual, give them the
name & model number of the machine

Jun 03, 2012 | Sewing Machines

1 Answer

I was given this machine when my mother in law passed away. There is not a booklet with it to explain how to work it. Is there a way I can get this booklet? Thank you for any response you may be able to...

Hi. Brother is very good at providing replacement manuals. Go to, choose sewing machines, then look for your model.

Good luck and happy sewing!


Aug 09, 2010 | Brother PE-150V Computerized Sewing...

2 Answers

LG 60" Plasma Picture failed

Hi I know that a Plasma TV, the picture problem is the gas device that has to be replaced.Ief is on the waranty just replace the TV.

Aug 13, 2009 | LG DU-50PX10 50 in. Plasma HDTV

2 Answers

Need owners manuel

Try this link to zenith it should take you directly to the Product support page. Click on Product Support in the menu bar then click on the owner's manuals link on the left side of the page. You'll want to select TV as the product group, then PDP TV as the product, ENGLISH for the language, and finally type in the model number.

Apr 04, 2009 | Zenith Z50PX2D 50 in. Plasma HDTV

1 Answer

50 inch LG plasma model 50PX5D. Lost picture and sound

well it looks to me u need a new tv....all the details u give are pointing that ur picture tube is gone.....but call LG help and costumer line and ask them......u may get away from it to get a new tv
make sure when u get a new plasma to extend ur warren tie to a max o 3 to 5 years and if this would happend u get it repaires for free.......cost for a new screen app 1000 to 1500 dollars

Mar 12, 2009 | LG 42PC3D 42 in. Plasma Television

1 Answer

Great Picture But No sound

Good Day;

Look in owners manual pages 28-35, pay special attention to page 31 and make sure the antenna is connected to ANT-DTV input. Good Luck, big IRISH.

Sep 18, 2008 | Mitsubishi WS-65809 65" Rear Projection...

2 Answers

Television lines

This sounds like a bad cap in the power supply. The component is only starting to fail under load and heat. I'll look up your specific model and see if there have been any reports of this type of problem.


May 28, 2008 | Televison & Video

34 Answers

42 inch LG Plasma TV - Lost picture

Our LG 50" plasma tv screen went black after a popping noise but still had sound, after great diliberations decided to take the back off and have a peek!
We unplugged the tv and tested the fuses (there were three we could see) one had blown, the one on the left as you look at the back of the tv it also has one above it. We wrote the code/seriel number down and took the fuse to the electrical wholesalers Maplin and bought a pack of 10 fuses for £1.29 replaced the fuse in the tv and everything now fine!!!!!!
Hope this might be of use to anyone whose lost the picture after a loud popping/snacking noise but still has sound.

Dec 31, 2007 | LG RU-42PX10 42 in. HD-Ready Plasma...

Not finding what you are looking for?
LG DU-42PX12XC 42 in. Plasma HDTV Logo

335 people viewed this question

Ask a Question

Usually answered in minutes!

Top LG Televison & Video Experts

Computer Repairing
Computer Repairing

Level 3 Expert

14641 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

The Knight
The Knight

Level 3 Expert

75017 Answers

Are you a LG Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides