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Laptop screen not lighting up - Computers & Internet

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Check wires then battery or it mybe sceen broken jim

Posted on Apr 05, 2011

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Posted on Jan 02, 2017

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Hp probook 6460bMy laptop screen went completely off the laptop itself works just fine i even used it with the screen just a couple of hours ago before i left.but now i have to use an external screen with...


If you shine a bright light at the screen, with no external screen connected, and you can see a picture/desktop just around the light source, the ballast unit or flourescent back light maybe faulty. If nothing at all, check out flea bay for a replacement screen.

Dec 14, 2013 | Computers & Internet

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How to fix a fuzzy screen


1) Shave it
2) Use NAIR
3) Wipe your glasses

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A) Is the Screen resolution correct?

B) You may have a problem with the screen Inverter, or Video Cable, or LCD screen.

A short primer if I may;

An LCD screen does not produce light,

http://solutions.3m.com/wps/portal/3M/en_US/NA_Optical/Systems/BehindTheScenes/Optics101/

(Click on the monitor image)

It needs an additional light source.
A Backlight is the additional light source.

A Backlight can be a CCFL (Or more than one), or a series of LED's
(Light Emitting Diode)

A CCFL is a Cold Cathode Fluorescent Lamp. (Bulb)
Similar to Fluorescent lighting used in homes, and businesses; but on a MUCH smaller scale.

Average thickness is 2mm. That is a little larger than 1/16th of an Inch, or about the width of this capital letter -> O <-
Average length is almost as long, as the LCD screen is in height.

View the last 8 photos,

http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/

Not knowing what laptop is in reference here, I cannot tell you whether your laptop uses CCFL/s, or LED's.

A screen Inverter is used to convert the power from the laptop, for the screen Inverter.

Laptops that use a CCFL for a Backlight, also use a screen Inverter.
Laptops that use LED';s for a Backlight, may or may Not use a screen Inverter.

90 PERCENT OF THE TIME, the fault can be attributed to a bad screen Inverter.

Primer over.

What is the laptop manufacturer name, and model number?
The model number is on the bottom of the laptop.

Please post back in a Comment.
Regards,
joecoolvette

Mar 14, 2013 | Computers & Internet

1 Answer

The light comes on but the screen dont come on


try to connect a desktop screen to your laptop and the switch it on ,if the desktop screen is blank then the laptop have a problem , but when the screen go on , then it means your back light of the laptop screen is broken and it can be fix.

Jan 11, 2013 | Toshiba Computers & Internet

1 Answer

Display works but there is no light.when i turn on the notebook light turns on few seconds and then turn off.dell latitude 110 l.


connect an external laptop screen to inverter leaving the display nap on the laptops original screen.if the external screen lights up and off then replace the inverter.if not then the bulb in the dell laptop screen needs to be replaced.contact me for more info tel.75376764

Jun 22, 2010 | Dell Latitude 110L Notebook

1 Answer

Laptop has a black screen no picture.


It sounds like the back-light in your laptop's LCD screen has died. If you turn the laptop on, and hold the screen up to the light, you may be able to see the operating system and windows, but since the screen isn't emitting any light, it appears to be off or all black. If this is the case, you'll need to either replace the back-light, have the laptop repaired, or replace the whole thing. There's no easy fix for a dead back-light.

Mar 04, 2010 | Dell Inspiron 1200 Notebook

1 Answer

Power on screen still black


The following might be the problem:
  1. The screen might be bad
  2. The screen board might be bad
  3. The screen light might be bad
  4. The laptop mother board might be bad.
To be sure if the mother board is still working, connect your laptop to a monitor an see it it displays.

You need to take your laptop to a qualified technician to ascertain the main problem so that action can be carried out.

There was a Toshiba laptop that some brought to me, the fault was the same as yours but when the laptop was checked, we found out that the fault was from the screen light. That is the lights that makes the screen bright was dead.

I wish you the best.

Dec 16, 2009 | Toshiba Satelite 2410 Notebook

1 Answer

Screen Back light no longer works


Bad wire or a bad solder. you can have this repaired if you have the service manual of the computer as it shows the full anatomy of the machine. Or a local computer shop is always a good option.

This link below will provide common laptop troubleshooting that can be at home.

Laptop Repair 101

Jan 01, 2009 | HP Pavilion dv1000 Notebook

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