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LG F700P monitor black out on top half, horizontal white line

Monitor keeps blacking out on top half, has a white horizontal line running across the centre.

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  • repairdude22 May 11, 2010

    Do you have a laptop or a desktop. also try a nother monitor to see if same thing happens

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  • 233 Answers

Sounds like your monitor or graphics card may be going bad.

Posted on Dec 27, 2008

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1 Answer

Black horizontal lines across entire screen.


Visit the site named 'Electro-help' for more details. Click this link. View it in "Timeslide" or "Flipcard" option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. You can also click the [Home] tab to see the latest updates. It will make search easy. There are more than 1350 posts to different brand TVs now. Pull up older posts there or do a search by type in the Brand Name of your device in the Search Box, at the top right of the display window.

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Screen got black lines across it


Across vertically or horizontally... It makes all the dif. It could be 3 boards on the set. The YSUS-main the YBU-upper/YBL-Lower. The Y buffer upper controls the top half of the screen, the Y buffer lower the lower half and the YSUS-main controls those 2 boards. They work in unison, when one goes they all fail. The other possibility is dry solder joints on the the D, G, E, F boards. All you would need to do with that is reheat the solder joints at the ribbon cable conx.

Best Regards and Semper Fi

Aug 06, 2010 | LG 42LC2D 42 in. LCD HDTV

1 Answer

Permanent horizontal line approx. 4" from top of screen


if this line is in the picture, that is possible burn in screen. if you have a black bar at the top or faint white lines that come down from top this is caused by defective filters in vertical circuit or bad vertical output. mch

Feb 20, 2009 | LG 50PC3D 50 in. Plasma Television

1 Answer

Black & White lines across my monitor


1.Make sure all the connections are secure.
2.Try attaching the monitor to a different PC if possible, to determine if its the monitor or video card.
3.Your monitor might just be going bad

Jan 04, 2009 | LG Studioworks 900B 19" CRT Monitor

1 Answer

Black line running horizontally across TV screen


A line on an LCD, either horizontal or vertical usually means the video driver board is defective or the screen is defective, does it show up as black even on a dark screen? That means a line of LCD "shutter"s is not working and there is a problem that cant be fixed by a reboot or channel change. Bummer.

Feb 17, 2008 | Televison & Video

1 Answer

Black horizontal line


The LC display is bad. The monitor will have to be replaced.

Jun 24, 2007 | HP vs15 15"LCD Flat Panel Monitor

1 Answer

Monitor goes black with a white horizontal line across the middle of the screen


Check to see that the monitor cable is correctly installed. Also, make sure you have the most up-to-date drivers installed for your graphics adaptor card(both ATI and Nvidia carry catch-all driver programs to keep you up to date.) Tighten the cable screws of course, to make sure the monitor cable isnt just wiggling in its seating.

Jun 05, 2007 | LG Studioworks 900B 19" CRT Monitor

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