Question about Dell Inspiron 8500 Notebook

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LCD Display behaving badly

Hello, I found an insect had made a home inside my lcd screen which was really getting on my nerves. Since the warranty had already passed, I opened the display, unplugged it from the laptop and found that I could not get the insect out without taking the display apart far more than I felt comfortable doing. I plugged it back in, closed it up and resolved to live with the pest inhabiting my screen. The screen worked briefly thereafter and then stopped functioning properly. Each time I turn on the laptop is different. Sometimes I get a black screen (with or without a blinking cursor in the upper left),vertical multicolored lines, split screen half blue half white, and the windows load screen (slightly garbled). The furthest it will ever go is to a screen where its fuzzy blue and yellow pixels with a clear mouse pointer displaying. I have also tried getting it to work in safe mode with no success. Maybe the lcd cable just came loose but I'm worried that it might have something to do with the inverter, or even the graphics chip. Maybe there is a way to reset the lcd display to reinitialize itself when I power up? In any case, I now know better than to wish for an insect free lcd.

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  • 537 Answers

It sounds like the ribbon connector or flexible connector is not seated quite right. I would open up the unit again and carefully inspect this or any other cable that you had unplugged.  Reseat these properly and power it up again.

These cables can be very easy to damage if not replaced properly. Take special care.

Mike

Posted on Oct 29, 2007

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Posted on Jan 02, 2017

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1 Answer

Whats with my 32 sony bravia, 2 dots on screen?


If this TV is a DLP. It is common to get insects get inside. They are harmless. It will take an effort to remove them. Let them be...they will soon die and fall out of sight. Thanks for asking me.

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An LCD screen cannot produce light. It needs an additional light source.

A Backlight is the additional light source.
A Backlight can be a CCFL, (Or two of them), or a series of LED's.
(Light Emitting Diode)

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

Average thickness of the bulb is 2mm. That is a little larger than 1/16th of an Inch.
Average length is almost as long as the LCD screen is in height.
(Yes. They have Mercury inside, just like their larger 'cousins')

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

Laptops that use LED's for backlighting, do Not always use a screen Inverter.
It seems older laptops using LED's may, newer laptops using LED backlighting generally does not.

You need to diagnose.

The problem will be the;

A) Video Cable.
Or
B) Inside the Display Assembly

Inside the Display Assembly:
Either the screen Inverter, IF used; or the LCD screen itself.

I don't believe it to be the graphics chipset, but this is a diagnostic flowchart we will be following, and there IS NO guessing. The graphics chipset is checked too.

Post in a Comment as to the laptop manufacturer name, and model number. The model number can be found on the bottom of the laptop.

This way if I have access to the Service Manual, I can post a link to it for you, and perhaps some pictorial guidance too.
Plus step by step guidance from me.

Regards,
joecoolvette

[May just be a loose connection of Video Cable TO motherboard, or back of LCD screen.
May be a damaged Video Cable.
May be a bad screen Inverter.
All these check out it is then a bad LCD screen ]

Jan 28, 2013 | Computers & Internet

1 Answer

Nokia 2626 getting blue display


hi,

there are several reasons why your getting a blue display.

1) probably your phone experience accidental impact and that causes lcd flex connector to get loose and causes no display.
2) open connection to lcd.
3) busted lcd.

If your phone has still a warranty don't try to open your phone and there's a great chance of damaging the LCD and also your unit is still in warranty and if the warranty sticker is broken, your warranty is void. instead have it repaired to your phone dealer or provider and that saves you from trouble.

but if you really to gamble and give it a try (Don't do this if your not sure what your doing!), you can fix it yourself if the problem is on no. 1 (loose lcd connector). open your phone slowly (since delicate parts inside and remember its part placements) using t6 or t7 screws and locate the lcd flex connector (usually behind the LCD) that connects the lcd to the main board. remove it slowly not to damage it and look for abnormalities, if none, then put it back securely and assemble your unit. then give it a try...

Good Luck!

Don't forget to rate me OK! Thanks...
Hope i helped you...

best regards,

John

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1 Answer

There is problem in my sony ericsson hazel that is in warranty period and no light in there in screen and all functions r running is this is physical damage or not ?


hi,

there are several reasons why there is no light in your lcd screen.

1) you accidentally turn off its lcd backights if your unit has that features. check on it on display settings of your phone.
2) probably your phone experience accidental impact and that causes lcd flex connector to get loose and causes no light for the display.
3) busted lcd backlight or open line connection to backlights.

I recommend not to open your phone since it is very tricky to open it and there's a great chance of damaging the LCD and also your unit is still in warranty and if the warranty sticker is broken, your warranty is void. instead have it repaired to your phone dealer or provider and that saves you from trouble.

but if you really to gamble and give it a try (Don't do this if your not sure what your doing!), you can fix it yourself if the problem is on no. 2 (loose connector). open your phone slowly (since delicate parts inside and remember its part placements) using t6 or t7 screws and locate the lcd flex connector (usually behind the LCD) that connects the lcd to the main board. remove it slowly not to damage it and look for abnormalities, if none, then put it back securely and assemble your unit. then give it a try...

Good Luck!

Don't forget to rate me OK! Thanks...
Hope i helped you...

bst rgrds,

John

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1 Answer

My Computer screen goes black at start up. I have a windows xp. I have switched Screens with a working moniter and found out somthing is wrong with the screen. I really need help From, Anynamos


Caps in the power supply will be the first suspect.
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, poor solder joints, 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://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

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1 Answer

Why the lcd of my nokia 6300 cannot display?


Hello,

If the lcd of your phone is not displaying, it means the lcd of your phone is bad.

All you need to do is to get a brand new screen on your in other to let it display.

I strongly advice you go with your phone while going for the replacement of your lcd screen in other to get the lcd screen and a working screen.

Take care.

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1 Answer

Hp entertaiment pc problem: display system have running but nodisplay and anther one vga port display working problem lcd display ?


Hello,

Even though I suspect that there is a problem with

your system LCD too, but before you conclude, try

this out:

When you power on your system, use the function

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If after trying this nothing happens, then I'm afraid you

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Computer store and let an electrician fix it for you.

You should be ready to pay a few dollars though.

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Try this out and let me know how it goes.

Hope this helps you out.

Goodluck and thanks for using Fixya

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2 Answers

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254108-001 is the part number for the lcd

Couldn't find the part number for the inverter board but I found one on Ebay here:

http://cgi.ebay.com/compaq-presario-700-inverter-board_W0QQitemZ260535107682QQcmdZViewItemQQimsxZ20100109?IMSfp=TL100109224006r14935


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2 Answers

Image shadows ghost peenom


Hi,

i think this is caused by a factory failure in the electronic circuits or the screen, and so my advise is that the bvest, easiest and safest solution to contact a tecnician or sort out wether the warranty can cover this.

Hope this is useful, and greetings,
Olivier.

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1 Answer

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I had a similar problem with a flat screen lcd for my desktop comp, and it turned out that I needed a new screen if i wanted to get rid of it, but it doesnt really cause much of a problem, so i didnt bother replacing it. If your laptop is still under warranty, (i dont know how long your warranty lasts) I'd look into getting it replaced if it really bothers you. But yes, its definitly the screen.

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