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

5 Answers

Were can I get this board 6871QCH038A

I need to fix my LG DU-42PX12XC..

Thanks

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  • Anonymous Oct 01, 2008

    Vance Baldwin Electronics has the part $126.00 go to lg.com and you will find them listed as an authorized dealer. Red line and sometime blue lines and some time left side blank with blue and red lines.
    # 6871QCH038A

  • wht90rx7conv Feb 28, 2009

    Hyundai plasma HPT 4250 H. Pressing on this board with a non conductive material causes the left side to have no picture and have vertical lines with multi colors. I've soldered as many connections as possible but some are way to small to tackle. I need a replacement as well.

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The actual problem are the solder balls under the chip it can be fixed easily by reworking it, we have done it in a few dozens tv so far with excellent results the usual problems are: red vertical lines , one half of the screen not working, color lines and it usually cost only the time to perform it.
azhdtv at 85040

Posted on Sep 23, 2009

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Check for it on ebay. Its around$100

Posted on Nov 13, 2009

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  • LG Master
  • 1,635 Answers

The only source is the parts support for LG. They can direct you to there parts distributor for your area.

http://www.lge.com/support/main.jhtml

For many of these products, the manufactures will not sell replacement parts to non contracted servicers.

In many cases, if there is a damaged board it is possible that the cause of the failure may be on another board. You can end up buying replacment boards and parts yourself and still not have the problem solved.

Personaly, my preference would be to give the set to an LG authorized service center where they can properly diagnose the problem and properly service the set.

Jerry G.


Posted on Jul 16, 2008

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Try tristatemodules ...

Posted on Jul 17, 2008

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I have a LG DU 42px12x with the same vertical red line problem and screen blacking in and out. Can these problems be solved by reworking the chip as advised above or are they unrelated problems. Which chip/component has to be reworked?

Posted on Jul 04, 2010

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Posted on Jan 02, 2017

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2 Answers

My LG Plasma television DU-42PX12XC had a loud pop


Your tv contains protection circuitry that would shut down the tv if the ymain was out. If the ymain had blown, you'd have no sound and just a flashing standby light. My gut tells me you need to replace the Power Supply Board (PSB). I've seen this before and after spending too much money trying to diagnose a ymain failure, I was surprised to learn that when you have sound but no picture, the psb is a gonner. Try ebay, shopjimmy.com or discount-merchant.com for a replacement.
Good Luck!

Apr 20, 2010 | LG DU-42PX12XC 42 in. Plasma HDTV

1 Answer

LG plasma TV with white shadow to right of bright colours? can it be fixed?


Yes you need to replace the controler board,part number 6871QCH038A.It is located under the tuner board,so you will have to take it out to get to it.

Oct 03, 2009 | LG DU-42PX12XC 42 in. Plasma HDTV

1 Answer

M29w320dt software pleas


Your module is available at Encompassparts.com for $123.47
The new # is 6871QCH038C

Apr 29, 2009 | LG DU-42PX12XC 42 in. Plasma HDTV

1 Answer

Issue with LG Plasma tv model # DU-42PX12X


Another "same probelm"

My set has encountered this magical 50/50 split screen and it seems to be quite a problem since I am not the only one researching this issue. LG was of no use because of course it is just out of warranty. Any solutions on fixing this or am I out of money in buying a new plasma?

Jan 27, 2009 | LG DU-42PX12XC 42 in. Plasma HDTV

1 Answer

LG DU-42PX12X


Check the controller board, 6871QCH038A. This board is one layer deep into the assembly after the cover is removed. Gently lift the covering circuit board back plane to access.

To do this direct a blast of cold air unto the large chip in the center of the board. If the picture comes back on then you have found it. This means powering the TV while open and this means danger to the novice. Voltage can end your life when you become the circuit path.

Order Part number 6871QCH060Q as the suitable replacement part to this circuit board.

7060 State Road 84 #12
Fort Lauderdale, FL 33317
(800) 432-8542
Fax: (954) 723-9044

Jan 05, 2009 | LG DU-42PX12XC 42 in. Plasma HDTV

1 Answer

Blue transparent line on new LG tv


If it's new you should be under warranty.

If not, you need to replace the Power Control Board 6871qch038a

My Plasma is a VIZIO P42HD but all the components are LG.

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

Dec 26, 2008 | LG DU-42PX12XC 42 in. Plasma HDTV

1 Answer

Lines in screen


6781QCH038C is the correct replacement.

There is another replacement part for LG's ending with 060Q. Electronia-USA.com stated it may not work with LG's but does work for Vizio's

Yes, a non pro can do this repair.

Oct 24, 2008 | LG DU-42PX12XC 42 in. Plasma HDTV

3 Answers

LG DU-42PX12X Verticle lines of various colors, and widths throughout the screen.


Check within you area for a reliable LG repair center. To fix the problem of the blue, red or green vertical line you just need to replace the control board PN 6871QCH038C. The part cost about $150.00 and a honest repair center should not beat you up to bad on the labor. Good luck and Good viewing.

Feb 06, 2008 | LG DU-42PX12XC 42 in. Plasma HDTV

1 Answer

Blue line


Lucky54 find the solution for my vertical blue line. I have changed my ctrl_lvds board #6871QCH038A localised in rear of board tuner. I paie $188CDN and my plasma work verry well. If you want repair it, it's possible by followind instruction by BLUSVER give on this site.
Good Luck

Dec 17, 2007 | LG DU-42PX12XC 42 in. Plasma HDTV

10 Answers

LG flat panel plasma with red line


I had the same problem and fixed it by replacing the control board. It's a little nerve wracking, but required only simple hand tools. If you'd like to see detailed pictures of the repair check out my blog.

http://greenrenovation.wordpress.com/du-42px12xc-repair/

May 23, 2007 | LG DU-42PX12XC 42 in. Plasma HDTV

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