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Screen and all pictur have fon about blue color , but when a closed LCD of laptop a few screen be come normal

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This is probably a loose / worn connection in the internal monitor cable, unfortunately this happens.... you can investigate to see of the cable can be reseated / tightened..

if this is a new machine this could be repaired under warranty

Posted on Aug 03, 2010

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Posted on Jan 02, 2017

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My Compaq Presario CQ56 has a very bright pink screen. You have the screen closed at 45% or smaller and the screen returns to normal. You can also lift up the bottom of the laptop and place a holder


There's a ribbon cable that attaches the LCD to the motherboard that's come loose somehow. If you remove the screws from the front of the Laptop LCD Screen and look in the back, there should be a cable, simply unplug it, and plug it back into the slot firmly. If there's no tape on it, use some electrical tape to tape it in place once its plugged in correctly.

If that doesn't work, you may need a controller module that plugs in the LCD and located at the base.

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White screen with color streaks in Dell Latitude D830?


Hook a spare monitor to the video output usually on the back, if picture is okay! it means the LCD panel display on the laptop is defective and will need to be replaced. But if the symptom is the same it is the video graphics card that is bad, normally built into the motherboard.

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What does it mean by dead cells?


I assume this is related to your LCD monitor.
I think you mean dead pixels. The LCD monitor has tiny pixel elements, one for each red, blue, green color and each one of these colored pixels are turnes on by a transistor. When a transistor fails then the colored pixel it controls does not light up. This is a dead pixel and it shows up as a tiny black dot.
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1 Answer

My laptop screen had an odd color to it a few days & is black now


You could have a defective screen - a defective inverter or a CCFL lamp or simply the video cable needs reseating. After reseating the video cable and the problem is still there then :- To determine if you have a LCD screen or video card problem, read this and follow the instructions. Defective CCFL backlight, it may have the following symptom: Screen flashs on red/pink and off. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickering on and off. All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp Connect an external monitor to your laptop and power the monitor up first then the laptop, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight. Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case. The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills. Check out www.lcdparts.net for parts, repair service and DIY info.

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1 Answer

Color Display on Panasonic Toughbook CF-28 is dull


You most likely have a defective screen - a defective inverter or a CCFL lamp or simply the video cable needs reseating. After reseating the video cable and the problem is still there then :-
To determine if you have a LCD screen or video card problem, read this and follow the instructions.

Defective CCFL backlight, it may have the following symptom:

  • Screen flashs on red/pink and off.
  • Picture stays on in red and slowly be come normal.
  • Picture flickering with dim display or appear black.
  • Picture flickering on and off.
All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp

Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.

Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out www.lcdparts.net for parts, repair service and DIY info.

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1 Answer

Pink color should be blue also flashing screen


If you hear the hard drive spinning and you think Windows is working but you can't see an image then :-
You could have a defective screen - a defective inverter or a CCFL lamp or simply the video cable needs reseating. After reseating the video cable and the problem is still there then :-
To determine if you have a LCD screen or video card problem, read this and follow the instructions.

Defective CCFL backlight, it may have the following symptom:

  • Screen flashs on red/pink and off.
  • Picture stays on in red and slowly be come normal.
  • Picture flickering with dim display or appear black.
  • Picture flickering on and off.
All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp

Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.

Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out www.lcdparts.net for parts, repair service and DIY info.

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dont do any more rnd take ti to service center

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Inspiron 1521 green screen problem


The LCD cable or the cable to the Inverter board may have come loose.


Here is a site that will show you in pictures what the LCD cable connections look like. The site also has Laptop repair hints:
http://www.laptoprepair101.com/laptop/category/lcd-screen-repair/

copy and paste the complete link into your browser.
If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe

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This was probelm of lcd panel

u go nearest service center and check lcd panel

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