Question about LG MZ-42PZ14 42 in. Plasma Television

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LG 42 inch plasma model # RU42PZ61

Hi, 
My LG plasma just had the left side of the screen go out.  The picture in now just black with colored vertical lines when it is trying to decode the picture.  I've taken the plasma into a shop and they are quoting $123 for a replacement control board and about $500 in labor.  First off, does this sound like they are diagnosing the problem correctly?  Second, if I can get my hands on this part, how difficult would it be to replace the board myself?
thanks,
Mike Tansill

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I've been fixing a DU-42PY10X with the same problem. I checked around online and with a friend in the business and both suggested that it is indeed the "Buffer Logic Right" (for the left side). I took the unit apart very carefully and checked the serial number sticker on the board for a number like 6871QRH043A. 6871QRH043A is the part number I need, but it is probably different for you.

The part looks like this (http://www.discount-merchant.com/We-provide-factory-original-parts-worldwide-p/1036658-lg.htm) and is found buried under several boards as well as under one of the main structural support bars. I had to take out the two system boards and their enclosing box, the power switch board, the two support bars and a giant heat sink spanning from the left to the right side at the bottom. Under there I found both of the vertical buffer logic boards (left and right sides). There are nine ribbons that have a flip-up snap to hold them in place to each logic board. And don't forget the 15 to 20 other cables that needed to be removed to get down there. And watch out for the three high-voltage boards (that have very large electronics and heat sinks) -- They will still hold an electric charge.

So, you could replace the board yourself if you are very organized and cautious. There are a lot of screws and a lot of wires and a lot of stuff to avoid. You may be able to get the part number by calling LG's parts department. I got my part for about $90. If you don't have the affinity to take apart consumer electronics already, then I'd advise having someone more experienced do it. I've taken stuff apart for fun for years, so it takes me about two hours to fix it. The $500 labor is steep, but it is that high because of the high voltage concerns and to pay for any mistakes they make.

If you feel you are a capable tinkerer, I'd order the part through them or through LG's parts department and fix it yourself very very carefully.

Posted on Sep 14, 2008

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Hi
my LG 42INCH PLASMA TELEVISION has got three lines running vertical from top to bottom two of which are black and one of which is sort of a coloured spectrum i have phoned around but recieved kind of orkward results if possibe wat do you think is wrong with it and is it possible to get hold of the part?

Posted on Sep 14, 2008

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