Question about Zenith P42W34P 42 in. EDTV-Ready Plasma Television

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Zenith P42W34 EDTV Plasma Black Line

Black Vertical Line (2-3" wide) runs top to bottom. I saw an earlier suggestion to check filter cap. And the offer to send that person PDF of the Service Manual. Might I get that PDF?

Thanks

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  • frustrated10 Nov 07, 2007

    I have a 42 inch Sanyo and have the same 2-4 inch black bar running top to bottom. Since it is hanging on the wall and heavy it is not easy taking it down to get it serviced.

  • hp trouble Nov 30, 2007

    I have the same problem, I have a HP 50" and it is hanging on the wall as well, I bought it october 16th 2006 with a one year warranty and of course exactly one week after the warranty went out a thick black line appeared. I contacted BEst Buy and they would not stand behind it. They put me in contact with a serive tech. that is supose to come out to my house on monday. I was kind of hoping to fix the problem before then so that they would not have to come out and me give them 100.00 just for stepping foor in my house.

  • Anonymous Dec 31, 2007

    I called Zenith and stated that the black vertical line seems to be a common problem they stated they had no history on the matter. So if all you guys call in we might be able to get them to take action of some sort

  • FOUAD35 Mar 09, 2008

    Black Vertical Line (2-3" wide) runs top to bottom. I HAVE ABOUT 25 TV Zenith P42W34 WITH THE SAME PROBLEM ANY SUGSETION ?? PLEASE

  • mpoelker May 12, 2008

    My Zenith P42W34 just got the same black line and I was wondering if there was a solution.

  • Dickiejoe Jun 15, 2008

    Had one black line down middle of screen (vertical) and now another has shown up. Anyone have a solution? Seems like a lot of us have problems but no one has found a solution.

  • Tophmeister Sep 10, 2008

    I've got a p42w34 42 inch plasma screen as well however i have three solid black vertical lines. i have the technical knowhow to fix it i just can't find a service manual! can anyone send me one?

  • Anonymous Oct 03, 2008

    ZENITH P42W34 I HAVE THE SAME PROBLEM I HAVE ABOUT a 1inch and a half vertical black like running thru my plasma tv 42 inch,any sugestion whats wrong?or what part needs to be replaced?just last month i had my power board replaced cost me $400

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Just reheat and add soder to fuse connected behing the driver boards.

Posted on Apr 11, 2009

  • aharris894 Apr 11, 2009

    I've bought 3 plasma on Craigslist specifically with this problem. It's an easy fix usaully takes a hour. Over time the connection from the soder on the driver board dries and seperate or loses value due to heat transference. Remove the back locate the driver boards they are rectangle like shaped alumiun slats that run across the bottom of the plasma. Underneath the slats you'll see four square like fuses with the number 100 imprinted. Purchase a sodering iron at Sear for $15 add a touch of soder to the ends of the fuse to re-establish the connection. Repeat process for all driver boards, make sure the unit is unplugged before you proceed. I've learned the hard way by frying the fuse on the driver boards, when a one of these fuses burns the number 100 imprinted on the fuse will be chared and discolored. If it's fried replacing it is not a problem just resoder the new fuse to both ends to establish the rely.

    aharris@usa.com

  • gogreen1444 Aug 07, 2010

    Where can you buy fuses that have the number 100 imprinted on it? Do you resoder the old fuse on top of the other?

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Black vertical lines on your P42W34? Apply pressure between the silver metal board and the orange ribbon cable on the bottom portion of the TV where the black lines occur. See pic below.

If this helped you, please donate the money you would have paid for the repair to your favorite charity :-)

Zenith P42W34 EDTV Plasma Black Line - 6c61fab.jpg

Posted on May 20, 2009

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  • Master
  • 579 Answers

The plasma display screen is made of a matrix of elements connected to cables along the side and top. On your unit, some of these many, tiny connections are making contact intermittantly thus losing the elements in that area. These contacts are held in place with just pressure and if that is disturbed, you lose that line of elements. Try squeezing the cabinet of the TV on the outside at the top in the area of the loss and see if that makes a difference. May have to go inside and see if the contact assembly is disturbed or warped or something.

Posted on Dec 31, 2007

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Just wanted to let everybody know that my plasma has the same problem but mine works fine for a minute and then it has the black line.. I took mine apart as suggested above.
I took regular wrtting paper used as a shim to make the contact
tighter, so far is working just fine.. I do not know if the paper is safe but I'm allways watching mine screen.

Posted on Mar 11, 2009

"Display Assembly" can be sent tp PTS, Indiana and rebuilt for $87.
Andrews Electronics sells it for $267. + s&h.

Posted on Feb 19, 2008

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