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

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Vertical lines all over...have pic

I have an LG DU-42PX12X. When powered on, it displays verticla lines of various colors, and widths throughout the screen. Here is a picture of what i am talking about:

http://i192.photobucket.com/albums/z266/Jamescoop/IMG_3235.jpg

Please let me know what I should do/can do to fix it--or at least figure out more about the problem.

James
jpickeri@gmail.com

Posted by on

  • smile4uu Feb 06, 2008

    I have exactly a same problem, please help.

    you can see the picture at above link or you can click here below:


    http://i192.photobucket.com/albums/z266/...

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I had the same problem on my DU-42px12xc. Red, green , and blue lines vertically on the right side of the screen. I found a loose solder connection under the inputs board on a resistor. After re-soldering, everything was crystal. I'm happy I grabbed this tv before my work threw it out. Be very careful when soldering SMT components. Use proper equipment. I had to troubleshoot while the tv was on, so I was extremely careful not to short anything out.

I pulled the inputs board out to gain access to the "Y-axis" pins.
Vertical lines all over...have pic - 41d5250.jpg resistor located under the inputs
fd8bf0e.jpg9d002b6.jpg I started pushing on the resistors 'till the color lines started working correctly, and re-soldered the four resistors.

Posted on Feb 11, 2008

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I tried your solution, but didn't solve my problem (like yours, at left two vertical magenta bars appearing and disappearing...!!!).
I resolderered all resistor contacts and all ics contacts ( i am a patient man... :-P), but no way to see some better results.
S i dismounted all bottom part where flat "paper" cables go to plasma panel.
Before doing what soever operation please dismount the long bar with dissipators, otherwise you will break them for sure! They are strongly kept by this long bar.
After dismounting i cleaned all contacts, and resoldered all other resistors and capacitors i found. Maybe i found one capacitor desoldered on one side, so i was pretty happy (after five hours of dismounting and soldering!).
I reassembled everything.... It's three weeks that no bar appear!!!!
So blusver thanks for your "trace" to understand where to work, even if the problem was different!!!

Thanks in advance,


GM

Posted on Aug 27, 2008

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Sounds like you need a control board

Posted on Jan 29, 2008

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LG DU42PX12X - red and pink vertical lines.


I know this post is old,
But I had the same problem.
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http://jasonkoller.blogspot.com/2011/02/lg-du-42px12x-plasma-tv-fix.html

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Tip

How to reset nokia mobiles life timer to ''0''


Nokia life timer is a counter that keeps track of the Total call time of your phone. It will show how much the phone has been used, and it?s the best thing to check if you?re planning to buy a used Nokia Mobile.
To see the Total Call Time or the life timer counter, On the standby screen type the following code *#92702689# (Easy way to remember this is ? *#war0anty#). And it will pop up a message that shows the life timer in hours and minutes.

Here is a detailed procedure to make this life timer zero.


REQUIREMENTS:
The following files are required to reset the life timer:
  1. Nemesis service suite link: Download from Here
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PROCEDURE:
1. Download and Extract the lifetimer.pm file, and Download Nemesis Service Suite.

2. Install Nemesis Service Suite on your Computer, It won?t take much time.(select the first option)

3. Install Nokia Cable Drivers (No need to install, if you have Nokia PC Suite already installed)

4. Connect The Phone in ?PC Suite? Mode to the PC

5. Open Nemesis Service Software

6. Click on ?Scan for new Device? Button on Top right Corner 



7. It Will take a few seconds to scan, and it will load up the software interface after communicating with the Phone.

8. Click the ?Phone Info? Button.


9. On the Bottom, Select and open the ?Permanent Memory? Tab, which is next to the Fbus info.


10. Click the ?Write? button on Below right, and open the Extracted lifetimer.pm file on your PC. 


11. After the lifetimer.pm file is opened , it will immediately start writing it to the Phone?s EEPROM Area.




12. The Procedure will end when the progress bar reaches 20%. This is normal , and on the bottom right side, it will display its done.

13. Unplug the Phone, and Restart it.

14. After boot up, Check the life timer .


Note: This method has been tested on following devices: Nokia 6630, 6670, 6680, 5500 sport, 5700XM, 6110 Navigator, 6120 Classic, N70, N72, N73,N76, E50, E51, E61i, E65, N80, N91, N95, N95 8GB, 5800XM Mobile devices. If you want to try it on other S60v3 or S60v5 mobiles, do it at your own risk.


Caution:
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  • Loose, worn out Data Cables Might fail the Writing process, and there are chances of damage to the EEPROM area of the phone.
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