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Need logic contro; board, model no. 6870qch003a for plasma tv du-42px12x

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NEED logic control board, model 6870qch003a

Posted on Apr 28, 2010

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6ya6ya
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Today 12/16/2010 my HDTV 42 in plasma model 42px12x.41. made a "popping" sound in the back of the screen and the screen went black,( yet there is still sound and a couple of green and red light...


PLASMA TVS DONT HAVE INVERTER CIRCUITS. YOU MOST LIKELY HAVE A Y-SUSTAIN BOARD FAILURE. IT IS THE BOARD TO THE LEFT LOOKING FROM THE BACK. THE LARGE ALUMINUM HEAT SINK LOCATED ON THE BOARD AND THE PART SCREWED TO IT WILL BE THE DEFECTIVE PART.

Dec 17, 2010 | LG DU-42PX12XC 42 in. Plasma HDTV

1 Answer

LG DU42PX12X - red and pink vertical lines.


I know this post is old,
But I had the same problem.
I was able to fix it.
Heres a write up I did on the "How To".
I added pictures and diagrams too.
http://jasonkoller.blogspot.com/2011/02/lg-du-42px12x-plasma-tv-fix.html

Jul 22, 2010 | LG DU-42PX12XC 42 in. Plasma HDTV

2 Answers

My TV Screen just turned off, but I hear the sound, have no menu.


MINE DID THE SAME THING ABOUT AN HOUR AGO. I UNPLUGGED THE SKY BOX FOR ABOUT 10 MINS PLUGGED IT IN AGAIN IT WAS FINE

Jan 31, 2010 | LG DU-42PX12XC 42 in. Plasma HDTV

2 Answers

Isee half the screen the other half is black and colour vertical lines.(42) Can that be fixed? How much? This is asecond time that happens.The tv is lg model du-42px12x. Tell me of is worth to fixed or not


FIrst of all this is a plasma set and thus does not have a "convergence" board. This could be as simple as a bad cable connection inside the set or a failed supply for one half of the plasma panel. If the unit is no longer under warranty. try removing the back and reseating all of the cables and connectors. Since the signal levels are extremely small inside, it doesn't take much to cause a problem.

Update this with your results and we'll continue as dictated by the results.

Dan

Aug 25, 2009 | LG KU-17WDVD 17 in. TV/DVD Combo

1 Answer

Vertical lines on LG-DU-42PX12X


please change vertical ic oc decosition coil solderd

Aug 07, 2009 | LG RU-42PX10 42 in. HD-Ready Plasma...

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

LG DU-42PX12X Plasma, picture startes flashing then goes black after a few minutes


You need to get this tv service asap.i beleive that the problem is in the inverter board or yb board.


good luck

caypianan@yahoo.com

Oct 25, 2008 | LG 42PX5D 42 in. Plasma HDTV

1 Answer

Lost video on LG plasma big screen model DU-42PX12X


LG Plasmas and all plasmas have problems with the sustain boards. You can replace them with just a screw driver to remove back and boards.  Try tritronicsinc.com and andrewselectronics.com and search for Y and Z Sus boards.
They are not cheap and you may want to call a qualified servicer or deal with return cost if they don't work
Classtorations.com

Jun 15, 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

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