Question about Hyundai ImageQuest HP4240 42 in. Plasma Television

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Black lines on plasma

There are black lines running down my Hitachi plasma screen but they come and go.

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Black thick line down my hitachi 42 in plasma tv

Posted on Oct 23, 2010

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  • Hyundai Master
  • 1,635 Answers

The matrix controler or the matrix drive area is failing. The fix is to change the proper circuit boards, and then do the factory setup to match the board is necessary. In the worse case, it may be the display screen itself that has a failure occuring.

You will have to bring the set for factory service to have the work done. If the set is out of warranty, it may be expensive to service.

Jerry G.

Posted on Apr 12, 2008

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SOURCE: Black line down the center of screen

I had the same problem to and I fixed it.
At the bottom of the plasma there are six or seven ribbon cabbles that come out of the panel and connect to like driver boards. Each ribbon drives that section of the panel. Mine had it down the centre so I unplugged that ribbon cable and on the underside of a metal plate attached to it there are four big resistors and four small ones. The big ones labelled 100 required resoldering. Once they were resoldered it worked just fine.

Posted on Sep 24, 2008

  • 1 Answer

SOURCE: Sky PDS4250 42'' Plasma TV - Black line down centre of screen

not sure if this is the fix or not ...but i was tryin to fix a problem with my tv(not the same as yours)...but in the menu under adanced you can split the screen ....when i do that it puts a blue line down the middle of the screen

Posted on Dec 04, 2008

  • 6 Answers

SOURCE: Vertical black bar down the middle of hitachi plasma tv

The tv is shot. This occurs when pixels on the top row of the screen break, which blocks current from moving through the rest of the pixels in that column. But don't worry this problem is common and is covered in your tv's warranty.

Posted on Jan 05, 2009

  • 1 Answer

SOURCE: black vertical strip on Hitachi plasma

rcrumpsi

Did this fix your issue? I have the same issue with this model. If so, was it very expensive?

Posted on Nov 15, 2009

  • 175 Answers

SOURCE: There is a 2 inch black line running vertically

could be a connection give it a tap on the top of were it is not too hard to damage it but if it goes away then it will be a bad connection on that quad but if it doesnt it will prob be the panel whic is dear as poisen for hitachi so if you can handle it keep it or sell it on ebay people like to buy for parts

Posted on Apr 27, 2010

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1 Answer

Black line on plasma tv


hi all .ive had the same problem,a thick black line down screen.sometimes it flickers from top to bottom and other permantly in view.but i have solved it.forget your ic boards and taking apart tv.have you got either a ps3 or wii connected to tv.if so unplug power lead from socket and relocate in seperate socket.make sure the lead is completely free of any other leads and you might just find this works.i think the power lead creates some sort of frequency that the tv picks up .good luck hope it works

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Try re-seating your upper and lower buffer board connectors. These boards run the length of the set on top and bottom. Since your line is from the top going down I would check that one. The connector will be close to where the line is showing up on the screen.

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My Hitachi TV Flat screen 42 EDT 4 1A has a one inch black line from the top to the bottom of the
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This is an old post but maybe it will help others. You will have to take the back off of the TV. On the bottom you will see ribbon cables coming from the screen and connecting to 3 PC boards. Take the screws out that holds the cable down. Underneath you will see 4 resistors marked 100. All you have to do is re-solder the resistors and your vertical line will be gone. You need to be good at soldering or you could damage the ribbon. The only ones that you have to re-solder is the ones in line with the lines on the screen.

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Usually this means pixel, but I would question if the line is mostly near right side or left side of screen? If more to one side this could be a bad board inside. for more info ctechnicians.com

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5 Answers

Black line in center of screen


These black lines on the plasma screens are very fixable.  There is a dry solder joint on a circuit board at the bottom of the plasma that needs resoldered.  There are 6 or 7 "ribbons" along the bottom of the screen that correspond to vertical sections of the display, so you just follow the black vertical line down to figure out which one is faulty.  I just performed this fix successfully on my first attempt on a Gateway plasma, but it will work on most plasma's, specifically Hitachi, gateway, LG, Hyundai, & Akai. I think they may all have LG boards, my gateway did.
I can't really describe very well what to do, but I assure you it is fixable.  If anyone is near nashville, I might be able to help you out.  My email is tomp2000@juno.com.
thanks,
ST

Jan 18, 2007 | Hitachi 42EDT41 42 in. HD-Ready Plasma...

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