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I have a acer aspire 4920 laptop here.the problem is the light at the LCD. i have change the inverter but it does'nt light.what would be the problem of this?is this the LCD problem?

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Could be a defective backlight lamp.
Please refer to the following article for more details:
http://www.fixya.com/support/r6430776-troubleshooting_laptop_power_failures

Posted on Apr 01, 2011

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1 Answer

My acer aspire 5517 laptop green blank screen and changes to red every 4 second!


More than likely the screen Inverter, Anowarul.

http://www.amazon.com/Acer-Aspire-Series-Inverter-Board/dp/B006BHRG9E

However the problem should be diagnosed.

Problem can be;
1) Graphics chipset
2) Video Cable
3) screen Inverter
4) LCD screen

I have a diagnostic flowchart you can follow, if you wish.
Post back in a Comment.

The plastic frame in front the LCD screen is the Display Bezel.
(Acer? LCD Bezel)

Once removed the screen Inverter is right there in front.
Mounted to the bottom of the LCD screen's Screen Frame.

Service Manual, (Free),

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-acer

Go to where it states - Aspire 1200 (1200 in Blue)
Drop down to the 7th line. (5310G)
Scroll across, and click on 5517.

http://www.insidemylaptop.com/remove-lcd-screen-replace-inverter-board-acer-aspire-5100-laptop/

Post back in a Comment.

Regards,
joecoolvette

Mar 19, 2013 | Acer Aspire Computers & Internet

1 Answer

My laptop is Acer Aspire 4920. When I connect to Samsung LCD TV nothing is coming. I connected properly. Can any body explain how to go about it


Make sure TV is set to connecting input port, like VGA or S-Video. "New Display" should appear on laptop.

Acer has more troubleshooting answers with helpful pictures.

http://acer.custhelp.com/app/answers/detail/a_id/5989/kw/monitor/related/1

Oct 05, 2012 | Acer Aspire One PC Notebook

1 Answer

Screen has gone cloudy?


Kevin, Kevin, Kevin,.....you should have posted your problem here first.

Primer:
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 a series of LED lights.

In regards to the Acer Aspire 7720 series of Notebook PC's, the Backlight is a CCFL.

Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.
(Approximately 2mm Wide, by close to the height of the LCD screen, Tall )

A screen Inverter is used to convert the power (Electricity) of the laptop, for the Backlight, and LCD screen.

http://www.cdsparts.com/p-97-new-acer-aspire-7720-7720g-7720z-7720zg-series-lcd-inverter.aspx

90 PERCENT OF THE TIME THE FAULT IS THE INVERTER.

The thin plastic frame in front of the LCD screen, (Resembles a picture frame), is the Display Bezel.

The screen Inverter is mounted towards the bottom of the LCD screen, and behind the Display Bezel.

This you already know. Posting for those who read this solution in the future.

Service Manual (Free),

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-acer

For additional questions please post in a Comment.

Regards,
joecoolvette

Feb 26, 2012 | Acer Aspire 7720 Notebook PC

1 Answer

I have recently replaced screen, inverter and cables on my acer aspire 4920 laptop as i had screen problems. The screen is very dark but still working under torch light. all the new parts are in working...


Please try to replace your cold cathode fluorescent lamp or CCFL... I hope this will solve your problem,, It is located on both edge of your LCD screen... Good Day and I hope this would help...

Aug 16, 2011 | Computers & Internet

1 Answer

I'm using an Acer laptop Aspire 4920. Yesterday a horizontal line appeared at the bottom of my screen. I line moves and changes color . The colors are pink and green. TQ. jane.


The line may indicate 2 things, your video card is corrupted or damaged, or or lcd monitor is itself damaged. Proceed to your local service center/supplier.
Goodluck

Tedmac

Sep 18, 2010 | Acer Aspire One PC Notebook

1 Answer

Power


Yes it is your board.

Apr 26, 2010 | Acer Aspire 5610-4648 Notebook

1 Answer

How to change screen bulb for Acer Aspire 1642zwlmi


I am assuming you are referring to the "back light tube"? If so they are easy to change however rarely the issue. Most likely your lcd screen is dead. Here is a step by step:
http://www.insidemylaptop.com/remove-lcd-screen-replace-inverter-board-acer-aspire-5100-laptop/

Mar 28, 2010 | Acer Aspire 1642WLMi Notebook

2 Answers

I dont know what's wrong with my laptop. Its screen always went blank (sometimes all white) when I'm using it and I have to restart it again and again before I could use it. This is Acer Aspire 4920. Could...


Your issue is either a dead LCD or LCD cable. Unless u can see a faint ghost picture of windows which would mean it is the lcd inverter but most likely its the lcd has gone bad

Jun 26, 2009 | Acer Computers & Internet

1 Answer

Need to change the lcd screen acer aspire 5570z


Here is a tutorial on how to change the LCD on a Aspire 5100,
It is basically the same on Acer laptops.
http://www.insidemylaptop.com/remove-lcd-screen-replace-inverter-board-acer-aspire-5100-laptop/

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

Dec 13, 2008 | Acer Computers & Internet

1 Answer

LCD INVERTER


FYI,
If your lcd is cracked, your warranty is gone. It doesn't matter if it is accident or not, because it is user fault. Unless you have 3 year total warranty from acer, they will repair it.

Apr 22, 2008 | Acer Aspire 5100 Notebook

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