Question about Computers & Internet

1 Answer

Backligt on lcd screen appears to have failed

I can see images but there is no light behind them, how do I get to check the cabling/connections inside?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Master
  • 12,223 Answers

The only way is you can open the laptop
see the video attached.

Posted on Jul 30, 2013

2 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 65 Answers

SOURCE: Laptop LCD screen has a faint image or is very dark and i checked Lcd,Invertor, video cable and its working properly . i don't know what to do pls help me.

Sounds like the backlight has gone. What is the make and model - you may be able to get parts or you may be looking for a salvage one.

Posted on Apr 10, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Half the screen has picture and the other side is all black


lcd tv's screens are actually made up with 2 parts a left and a right side each having its own video feed with generates half of the image each and sincs them which to the viewer appears as 1 full screen. if your screen is missing half of the image and it is exactly occurring inn the middle of the screen them the video signal probably isn't making it to that half of the lcd. either the video board is falling or the ribbon connector from it to the lcd has failed or possibly the connection where it is attached to the lcd (which saddle isn't reparable and would require replacing the lcd panel) the first 2 mentioned are an easer/cheaper fix . you can usually check the lcd connection buy removing the back gaining access to the connectors and see if the image appears on the screen while applying pressure along point where the connection goes into the lcd. if it does then the connection had come loose and as far as i know theres no way to reattach it.

Mar 17, 2014 | Samsung LTN1535 15 in. HD-Ready LCD...

1 Answer

Backligt not worket


There are two causes, the inverter board just under the screen, "most likely the problem" or the backlight behind the LCD display.

May 08, 2012 | Computers & Internet

2 Answers

Display


Hook a spare monitor to the video output usually on the back, if picture okay! the inverter board located under the screen is defective, or the backlight behind the display has failed. But if both show the same symptoms it means the video graphics card is faulty, normally built into the motherboard.

Apr 15, 2012 | Computers & Internet

1 Answer

The light on my Compaq CQ50-142US keeps going out intermittently. I can see the display, but there is no light behind it. After a second or two, the light comes back on. How do I fix it?


Actually it's a lot easier to replace the LCD Screen than to fool with the backlight.

If you can barely see the images on the screen then the problem more then likely is the LCD Inverter. It sits under the lcd screen and is covered by the strip that goes around the lcd screen. Remove the rubber bumpers that are on the strip around the lcd screen to expose the screws and remove them. Look down at the very bottom and you will see the Inverter which has a cable coming from the lcd screen and one from the Video on the motherboard. Remove both cables and put them back. Sometimes all they need is to be reseated and the image will appear. If not, you can purchase a new lcd inverter on eBay for less than $10.

Mar 25, 2012 | Computers & Internet

3 Answers

I have a toshiba netbook nb255. The screen flickers and eventually goes black. I thinkthe LCD screen may have a loose connection. Do you know the steps to verify this?


Connect the laptop to an external monitor via the VGA port. Enable the VGA port to output to the external monitor. Check the monitors image - if it's the same as the laptops, then it's not the LCD screen. If if the image is good, then it's the screen.

Jan 30, 2011 | Computers & Internet

1 Answer

Monitor goes black after a moment


Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://www.badcaps.net
http://en.wikipedia.org/wiki/Capacitor_plague

Apr 17, 2010 | Sceptre X 7 Komodo II 17 in. Flat Panel...

1 Answer

Lcd montor not working help


Hi there,
Symptom : No images on the screen. I cannot turn on the monitor.

Checklist 1 : Is the power cord connecte properly.
Action : Check the power cord connection and supply.

Checklist 2 : Can you see "Check Signal Cable" on the screen ?
Action : (Connected using the D-sub cable)
Check the signal cable connection.

Checklist 3 : If the power is on, reboot the computer to see the initial screen (login screen), which can be seen.
Action : If the initial screen( the login screen) appears, boot the computer in the applicable mode (the safe mode for Windows ME/XP?2000) and then change the frequency of the video card.
Note : If the initial screen does not appear, contact the Service Center or your dealer.

Checklist 4 : Can you see "Not OPtimum Mode", "Recommended Mode 1440 X 900 60 Hz" on the screen.
Action : You can see this message when the signal from the video card exceeds the maximum resolution and frequency that the monitor can handle properly.
Adjust the maximum resolution and frequency that the monitor can handle properly.


Checklist 5 : There is no image on the screen. Is the power indicator on the monitor blinking at 1 second intervals ?
Action : The monitor is in Powersafe mode.
Press a key on the keyboard activate the monitor and restore the image on the screen.
If there is still no image on the screen, press the On button. Then press any key on the keyboard again to activate the monitor and restore the image on the screen.

Hope this helps.
Have a good day.

Dec 08, 2009 | Samsung SyncMaster 920NW Monitor

2 Answers

'Shadows' behind all texts and images on the screen


[u][b]LCD Monitor Shadow Effect[/b][/u]
This problem is best described as the LCD monitor "Shadow Effect".
The solution to this very simple. No software or hard ware changes required.
The cables that are connected to the LCD monitors are causing the problem. Its also called as electromagnetic noise or electrical noise.
[u][b]Solution: [/b][/u]Keep the two cables - (power cable and moitor display cable), that are connected to the LCD monitor as far away as possible with each other and also away from other electrical cables.
Thats it. Your shadow effect is fixed.
Thank you.

Oct 13, 2009 | Acer AL2016W 20" LCD Monitor

1 Answer

Dell inspiron b120 cant see the screen it lights up but you have to press at the top of the monitor to make the image appear on the screen? it actually fell from the sofa and landed flat on the ground the...


check to make sure that the lcd cable are not loose. Best thing to do would be to take off the lcd cable are put it back on so it has a good solid connection. Make sure it has a good connection on the back of the lcd and also where it connects to the motherboard.

After you do that, turn on the laptop and see if the picture comes up normally, if it doesn't then the lcd is bad and would need to be replaced.

Sep 04, 2009 | Dell Inspiron B120 Notebook

1 Answer

Screen Problems with my Laptop


hi dear

1. That can be connection related problem. I check connection between the video cable and the LCD screen, try reconnecting the video cable. It’s necessary to take apart the display panel, unplug the video cable from the connector on the back side of the LCD screen and then plug it back in. In some cases reseating this connection helps. 2. If reconnecting the video cable doesn’t help, here’s what I do in this case. While the display panel is still disassembled, I turn on the laptop and wait until image appears on the screen. Then I move the video cable a little bit without touching the LCD screen. If moving/touching the video cable affects image on the screen, it’s possible that there is a problem with the cable. Apparently there’s a short somewhere inside the cable. In this case, replacing the video cable may fix the problem.
3. If reconnection the cable doesn’t help and moving/touching the cable doesn’t change image at all and the only way to get better picture is moving/touching the LCD screen itself, apparently there is a problem with the LCD and it has to be replaced.


oke


Posted by Laptop Freak on March 22nd, 2008 Filed in Video Problems, LCD Screen Issues, LCD Displays Lines -->

Mar 24, 2008 | Compaq Presario 700 470024-192 Notebook

Not finding what you are looking for?
Computers & Internet Logo

Related Topics:

13 people viewed this question

Ask a Question

Usually answered in minutes!

Top Computers & Internet Experts

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

kakima

Level 3 Expert

102366 Answers

David Payne
David Payne

Level 3 Expert

14161 Answers

Are you a Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...