Question about LG MZ-42PZ44 42 in. EDTV-Ready Plasma Television

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Diagonal dark lines cross screen

Hi all when i switch the tv on i get dark diagonal lins that move up and down the screen . thay also go thick then thin it then diagonal both ways . thay go arfter its warmed up aroun 10 minets the model number is mz-42pz44 with the tv tuner si screwed ot the back and the model number is rt-ba50 make is lg. thanks to any one that halps

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If you wish to get some details; visit the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

Posted on Nov 14, 2017

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Posted on Jan 02, 2017

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likha
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SOURCE: LG MZ-42PZ44 42 in

you have fault oscillation! u have defective parts

Posted on Sep 12, 2007

s4u311
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SOURCE: LG MZ-42PZ44

hi friend

u need a user manual see the in menual tell me whats ur tv model no

Posted on Apr 12, 2008

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SOURCE: LG MZ-42PZ44 42 green LED stays on

Have a look at my 'I broke the glass post'

Posted on Jun 06, 2008

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SOURCE: LG MZ-42PZ44 42 in. EDTV-Ready... Problem:

Have a look at my 'I broke the glass post'

Posted on Jun 06, 2008

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Dark cloud thick lines appearing on my LCD TV


It sounds like a loose contact to your T-con panel. Before the problem happened, had you recently moved your TV? A picture would help my friend also if you have the model number.

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Problem with my Magnavox DVD player, DP100MW8, picture dark and lines across the screen


Hi, if the lines are diagonal sounds like it is set to progressive scan mode-which means if there is not a switch on back saying P/S and interlaced then you need to connect to T.V. with component video inputs ( indicated by red,green,and blue colored R.C.A. plug inputs) and Pan and Scan capable-then in menu setting select interlaced picture output. hope this was of use, good luck prodzilla

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Hi i have a lg 50pg3000 plasma the screen has 2 thick black lines down the righthand side thay some time go bum most of the time stay unless i give the tv a bit of a twist then the lines go for about 1hr


Hi, you can try tightening the ribbon cables that run from the screen to the buffer board , only tighten the one near the line area. if this does not help you probably need a new buffer board or panel (screen)

I’m happy to help further over the phone at https://www.6ya.com/expert/eric_ab7c09ec01841771

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Dark horizontal line scrolling up from bottom of screen


if you are using a cable box .. then disconnect everything that is feeding signals into the tv ... then get a signal from some other source (like off the air antenna or video camera) ... if the tv still has the dark lines then you have a bad primary filter capacitor in its power supply .. if it works ok off the air and only does it when the cable box is hooked up .. then the cable box has an open primary filter capacitor . ... the dark horizontal bars you see is ripple from the rectified AC power that is not properly filtered ... if the TVs verticle scan rate is 60 hz and the full wave rectified AC amounts to 120 hz ripple then you will see two dark bars across the picture ... since the two signals are not syncronized then they will slip in phase with respect to each other .. thus the constantly moving pattern ..

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Sony 65" Rear Projection loses picture, then gets diagonal lines


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Aug 07, 2009 | Hitachi 51F59 51" HDTV Projection...

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It is possible that the electron-gun inside of the CRT is having an intermittant short. It is also possible that there is an intermitttant failure in the bias or drive circuits for the CRT electron-gun.

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Jerry G.

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Can you take a picture of the screen and post it? It is not possible for both the horizontal and vertical stages to fail at the same time to produce a cross. A picture of the screen would help significantly.

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1 Answer

Diagonal lines


Hi It's difficult to be sure without being able to see the lines myself, but what it sounds like is some stray RF is getting into your video signal. Although your cables are supposed to be shielded, this is a common problem. The first thing I would do is move the cables or cable you are using, in relation to any power cords hanging down behind your equipment while someone watches for the lines to change or dissapear, and is that has no effect, then if possible change the position of the VCR in relation to the tv, so that if for example it is under the tv, move it to the side, or farther away, and the lines may very well dissapear. That problem is due to a common interaction between the tv and vcr where there is not enough shielding, usually inside the bottom of the tv set. Hope this helps, good luck!

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