Question about Acer Aspire 3102WLMi Notebook

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3102wlmi. No backlight. Have changed inverter. Switch seems okay. Can light be replaced or is it necessary to replace whole display?

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You can replace the backlight if you want to accept that challenge, they are fairly cheap to buy on Ebay. Here is a link that shows the process...

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

Good luck, I've done a few...just remember there are things you can touch and there are things you CANNOT touch. Have fun

Posted on Sep 27, 2009

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Compaq C700 laptop screen shows horizontal lines and the screen seems to be split into several sections


The LCD screen is faulty and will need to be replaced, go to www.ebay.com Type: make and model refine search to screen, first! hook a spare monitor to the video output usually on the back, if picture okay! the above mentioned needs to be changed, but! if both show the same symptom it is the video graphics card that is part of the motherboard.

Apr 19, 2012 | Computers & Internet

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Screen is not lighting while laptop is running.


Hook a spare monitor to the video output on the back of the laptop, if okay it means the video card is working fine. The problem is a bad inverter board, "located under the LCD display" or the back light is defective behind the screen, "usually means a screen replacement"

Apr 06, 2011 | Sony Computers & Internet

1 Answer

The backlight won't turn on but occasionally will flicker.


Suggest you replace the Inverter. A Backlight goes out all at once.
90% of the time the Inverter is the hardware part at fault.

[ An LCD screen cannot produce enough light by itself.
A Backlight is used to supply the needed extra lighting.
A Backlight is a CCFL.
Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a much smaller scale

An Inverter is used to required power for the LCD screen, and the Backlight.
Boosts power up for the LCD screen, brings it down for the Backlight.

Dell Support > Latitude D600 Notebook PC > Service Manual

http://support.dell.com/support/edocs/systems/latd600/en/sm/index.htm

Replacing an Inverter is a simple job. Replacing a Backlight is not.
The Backlight is located within the LCD screen assembly.

The metal frame of the LCD screen assembly is removed along the edge where the Backlight is located, to access replacing the Backlight.

In the above list for Service Manual, click on > Display Assembly and Display Latch.

This information shows you where the Inverter is located on a Dell Latitude D620 Notebook PC.
The Latitude D620 is part of the Latitude D600 series of Notebook PC's.

http://www.insidemylaptop.com/remove-replace-lcd-screen-dell-latitude-d620-laptop/

Just one place from a quick search, that sells Inverters for a Latitude D600 series Notebook PC,

http://www.parts-people.com/index.php?action=item&id=2895

MATCH the part number listed that they have, to the part number on your Inverter.
You have to have THE correct Inverter.

Regards,
joecoolvette

Nov 05, 2010 | Dell Latitude D600 Notebook

1 Answer

I have a dell 1525 laptop - I replaced the inverter, I replaced LCD the new LCD also had an inverter and I replaced the video card. I still get a faint dark screen. I can hear the music when Winn 7 boots...


Hello, and thanks for using FixYa.

What do you mean you replaced the video card? that is impossible, you would have had to replace the whole mainboard.


Okay you replaced the inverter, I suppose it was a tested and known good condition working inverter? does it work on another machine?

The lcd display, same with inverter? Has it been tested that its backlights work properly?

Then aslong as the small cable between mainboard and inverterboard is connected properly, it should work. But if it does not you have 3 possible causes.


1, Faulty display backlights
2, Faulty inverter board
3, bad cable / inserted wrong or motherboard is not providing the required electricity to the inverterboard.

Oct 16, 2010 | Computers & Internet

1 Answer

New battery but lcd still no backlight


You probably have a bad inverter or backlight in the display. The inverter is what provides power for the light, and it's usually what goes bad. Replacements for most brands are available online from a number of sources. A Google search will usually turn up several, as well as detailed steps to change it if yours is a common brand. A computer service shop could give an estimate if you're not comfortable doing the repair yourself.

If the backlight itself is bad, that's much harder to change since it's built into the display panel. It's easiest to replace the display, but that can be a costly part. Most servicers won't try replacing the backlight because of the time involved. Again, get an estimate and then decide whether to fix it or replace it.

Hope this helps. Thanks for using Fixya!

Feb 19, 2010 | Computers & Internet

1 Answer

I swiched off my laptop inspiron 1000 at the off switch. when I put it back on the back light did not work


how do you know it is the backlight? Usually people think that's it but it is the inverter.
f the backlight of your laptop stopped working and the image on the screen is so dim that you can barely see it under bright light, most likely you have a failed inverter board. There is a good chance to fix the problem if you replace the inverter board. If you replace the inverter board but the image is still dim, most likely there is a problem with the backlight lamp inside the LCD screen. If that's the case, try to replace the LCD screen. Note: it's much easier to disassemble the laptop display panel when the display panel is separated from the laptop.

I can definitely fix either way if you are out of warranty from dell.
Good luck! EJ Kudelka ej@outlet3g.com 516-860-2969

Feb 06, 2010 | Dell Inspiron 1000 Notebook

2 Answers

No screen image in my laptop


You may have a defective inverter.
To determine if the video card or the LCD is faulty, 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. It could be a faulty inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out; usually the CCFL lamp fails before the inverter.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out LCD Parts for service, parts, and DIY info Use this link to their WEB site: -
www.ladparts.net

Nov 26, 2009 | HP Business Notebook 6515b - AMD Turion 64...

5 Answers

The screen was black when turned on but could make out what was on the screen when facing the light


You have 1 of 2 issues...

1.) You have a Bad LCD Bulb.. You can get a replacement LCD Bulb and change the LCD Bulb inside the Display which is cheaper and easier than replacing the whole backlight panel.... LCD bulbs cost around $12 Be careful these bulbs are Fragile and if bent when installing- will break...

2.) You have a failing Power Inverter... this is located just under the screen display panel,, it is a circuit board that the screens lcd bulb plugs into and the display cable plugs into... this inverter board converts the DC power in the laptop back to AC power because the screen needs more power to power the lcd bulb...

Your Problem Is One of These 2 Things... Your Best Bet Is To Test The Power Inverter First - Since It Is The Easier Of The 2 To Replace/Repair

Nov 16, 2009 | Cars & Trucks

1 Answer

No backlight/display


Generally I replace the inverter board and tube light in pairs at the same time, due to changes possibly made during production.

If you are trying to test the board itself for output, use extreme caution, as there are some pretty high volatges around that inverter board!

My suggestion is if you want to save yourself alot of aggravation, replace the bulbs too.

Apr 16, 2008 | Toshiba Satellite M65-S809 Notebook

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