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What can cause a single red line to appear on my laptop LCD screen? It's a small/fine red line appear horizontally (left to right) It's NOT radio interference,back light,broken ribbon cable,or connector problem. Line appear 24/7/365. Is there a fix for this?

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Thats a generic problem with LCD screens. Its more common in Mobile screens. Sorry, no there is no fix to it other than replacing the LCD itself. Just pray that it shall not grow because as and when the compressed gas from within the LCD will leak the line will be becoming broader and broader. It is caused by damage to the LCD corner Just a hit on side of LCD and a hairline crack for giving way to the encapsulated gas.

Posted on Jul 28, 2009

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You have a dead row of pixles, this is a common problem in LCD screens that have been in use for a while, the line appears (it's color is sometimes different, and it is sometimes verticle [my computer has a verticle blue line]) this cannot be fixed, you can try to ignore it, and if you cannot then you need to get a new monitor.

Posted on Jul 28, 2009

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1 Answer

Vertical strip of flashing horizontal lines on Acer Aspire 7551G screen


More than likely it's the lcd screen and will have to be replaced. I could be the video card, but most likely the lcd screen especially when you can put pressure on the screen and cause changes. To isolate the problem try connecting another monitor to the computer. Borrow a monitor from a neighbor, friend, relative or co-worker and connect it to the laptop. If the Borrowed monitor displays ok, then the problem is with your lcd screen and the video card is ok. If the Borrowed monitor displays the same as your lcd screen then the problem is with your video card inside the computer.

Plug in an external monitor and see if the display shows up on it. It can be any kind of monitor even the old big fat crt monitors as long as it has a vga cable to connect to your computer's vga port. If so that proves your video card is ok. The video will show on most systems when you reboot without you having to do anything. Some systems will require you to hit the FN (Function key) + F1 thru F12. Hold down the FN key then hit the correct key for displaying on the monitor (F1 thru F12). The correct key will normally have CRT/LCD on it or it will have the icon of a display.

Once you narrow it down to the lcd screen as being the problem you might try taking the lcd screen apart to reseat the lcd cable on the back at the top of the lcd. Just unplug it and plug it back into the connector. You can also try doing the same where the lcd cable plugs into the motherboard. Just pull it out and put it back.

May 31, 2012 | Computers & Internet

1 Answer

White vertical line through laptop screen


The cause is a failure of the LCD, and you can fix it by replacing the LCD.

http://shop.ebay.com/?_from=R40&_trksid=p3907.m38.l1313&_nkw=Inspiron+5160+LCD&_sacat=See-All-Categories

Instructions are here

http://support.dell.com/support/edocs/SYSTEMS/ins5160/en/SM/display.htm#wp1105699

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1 Answer

I have a KF-42E200A Sony Bravia LCD tv. Recently we had to replace the lamp. Since then a horizontal line appeared at the top of the screen and it has grown to about 3 inches now. The picture itself is...


The lenses in the TV are more than likely misaligned due to heat from lamp. The heat can cause the lenses to move and the red shaded horizontal line appears over time because the lenses fall out of alignment.

You just need to have the lenses realigned and the red shading will go away.

Jan 07, 2010 | Sony Televison & Video

1 Answer

I have a dell inspiron 6400 laptop and there is a red verticl line on the left side of the screen and a white one on the right side. how do i remove them?


Vertical lines that appear on the lcd are from two sources, one being a loose data cable. This cable is the flat cable that is usually running up the left center of the lcd and plugs into the motherboard on the left side under the keyboard. Now usually this cable is held into place by adhesive on the plug itself and sometimes there are small catches that hold it. It is entirely possible that this plug can be dislodged and cause the symptoms. The most likely scenario however is that the screen is starting to fail and this is just the start of a cascading effect until it goes out completely. Sometimes if you press on or "torque" the screen the lines will disappear, this is also indicative of imminent screen failure.

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1 Answer

Horizontal lines on screen HPCQ509


Lines on the screen are usually caused by a hardware malfunction in either the lcd, lcd cable or the GPU.

Do the lines appear immediately after power up the computer? Or only when Windows starts?

Can you hook the laptop up to an external monitor to test?

How long have you owned this laptop?

Nov 29, 2009 | HP Compaq Presario CQ50-210US Notebook

1 Answer

Re: KDL-40S2000 black horizontal lines


If you have a horzontal black line (left to right) panel is bad.

Sep 04, 2009 | Sony BRAVIA KDL-40S2000 40 in. LCD HDTV

1 Answer

Sony Bravia 42" Horizontal Lines


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.
Search the site by type in the "BRAND NAME" of your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts

Oct 19, 2017 | Sony Bravia KDL-42V4100 42 in. LCD TV

1 Answer

White horizontal dashed lines appear and at top of tv screen


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.
Search the site by type in the "BRAND NAME" of your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts

Mar 13, 2017 | Apex Digital GB43HD09 43" Rear Projection...

1 Answer

Lines on tv screen


Both sound like bad LCD panels. The following must be answered to confirm this:
Do the lines appear on all inputs/all signal sources?
Can they be seen in the OSD/menu?
If yes to both questions, it is likely that the LCD panel is bad

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3 Answers

Fine tuning grid on my Samsung HDTV with remote.(BP59-00048)


To adjust manual convergence on your projection TV, follow theses steps:
  1. Turn your TV on.
  2. Let it warm up for 30 minutes.
  3. Press the Menu button on your remote. The Main menu appears.
  4. Use your remote to select Function, and then press the joystick.
  5. Select Convergence, and then press the joystick. The Manual Convergence screen appears.
  6. Select Red, and then press the joystick. A series of crosshairs appears on the screen.
  7. Select one of the outside crosshairs by moving the joystick up/down/right/left or by pressing the 2 (up), 4 (left), 6 (right), or 8 (down) buttons on your remote. The method you use depends on the model of remote you have. Note: You must do the outside crosshairs first.
  1. In the crosshair you selected, if you can see a horizontal red line, use the CH up or CH down buttons to move the line so that it is superimposed on the horizontal center line of the crosshair. Note: Make the single horizontal line as white as possible.
  1. In the crosshair you selected, if you can see a vertical red line, use the Vol + or Vol - buttons to move the line so that it is superimposed on the vertical center line of the crosshair. Note: Make the single vertical line as white as possible.
  1. Repeat for all outside crosshairs, and then for the inside crosshair.
  2. Return to the Manual Convergence Screen, and select Blue, and then press the joystick.
  3. Repeat Steps 7 through 10 for Blue.
  4. Press the Menu button on your remote to exit.
Important: The directions above work for most Samsung Rear Projection TVs. Yours may be different. For exact directions to perform manual convergence, see your user's manual. If you don't have your user's manual on hand, click HERE to view your manual on line.
If you cannot get your Projection TV to converge, it may need to be serviced. To arrange a service appointment, call Samsung Customer Care at 1-800-Samsung (1-800-726-7864). Have your TV's model number and serial number on hand when you call.

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