Question about Dell Inspiron 1521 Laptop

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Screen is half dark and whistles when battery is unplugged

I have a 1 1/2 year old Dell Inspiron 1521, which whistles when the battery is unplugged and I turn the screen brightness up. And when the battery is plugged in the right half of the screen is much darker than the left. As I work on the computer longer the screen gets darker.

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  • Dell Master
  • 32,281 Answers

You could have a defective screen, either a faulty inverteror a CCFL lamp - follow this to determine the fault.

Defective CCFL backlight, it may have the following symptom:

  • Screen flashs on red/pink and off.
  • Picture stays on in red and slowly be come normal.
  • Picture flickering with dim display.
  • Picture flickering on and off.
All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp

Connect an external monitor to your laptop and power it up, 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 and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out www.lcdparts.net for parts, repair service and DIY info.

Posted on Apr 16, 2009

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1 Answer

Dell Inspiron 1525 laptop screen goes dark


Hey Lea,
Try the steps below to see if they will resolve this issue that you are having with your computer. If this does resolve the issue you can email me. My email address is listed below in my sigfile.

1) UNPLUG THE LAPTOP
2) REMOVE THE BATTERY
3) HOLD DOWN THE POWER BUTTON FOR ABOUT 30 SECONDS TO 2 MINUTES
4) THEN PUT THE BATTERY BACK IN
5) START IT UP..

Thank You,
Dell-Jesse L
Dell Social Media and Communities
email jesse_leonard@dell.com

Apr 13, 2013 | Dell Inspiron 1525 Laptop

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When I plug in my Dell Inspiron 1521 laptop, I get an error message saying it does not recognize my charger, will not charge and will likely slow down my computer's speed/performance. Everything...


Same topic on Dell official community, may it will help.
http://en.community.dell.com/support-forums/laptop/f/3518/t/7311465.aspx

There is high possibility that your adapter is stuffed. Dell have built in a recognition circuitry into the 65w adapters and when that goes, the system will no longer recognize it as a 65w adapter even though it is still putting out 65w. The system then shuts off the battery recharge circuit and to make matters worse it won't even charge the battery when the computer is off. It also speedsteps the processor down to half its speed so everything runs slower. Only option is to stick with a slow computer that can't be used on batteries or buy another ac adapter.

If you do not want to pay $80 for a original adapter directly from dell, there is an alternative choice to get an 3rd party charger, check this link below:

http://www.chargerbuy.com/replacement-dell-inspiron-1521-ac-adapter-19-5v-3-34a.html


Aug 02, 2011 | Dell Inspiron 1521 Laptop

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My screen is black i havent had any problems new battery and adapter i shut it down woke up and its a black screen and cant see anything its never happened before i have no idea and ive had it for 4 years...


If you laptop appears to boot up and the hard disk LED flashes then the problem could be a back light problem. This could be a faulty inverter or a faulty CCFL lamp. Please click on this link to determine the fault and possible fix :-
http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen

Jan 07, 2011 | Dell Inspiron 1521-JB Notebook

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My inspiron 1521 won't charge the battery...no sign that I have it plugged in.


3 possiblities

1 AC connector block is partially unpluged
or 2 Bad battery

Worst case scenario 3 charging circuit on Motherboard gone bad
but not likely

Jun 13, 2010 | Dell Inspiron 1521 Laptop

1 Answer

Dell Inspiron 1521 laptop monitor is dark.


It is a posible LCD problem, Might gone defective.

First trouble shooting is to turn off your laptop completele and the remove the battery and the charger and any accesories connected on yur lap top. Then press the power button for 1 minute. It will reset the settings of your laptop to default if you accidentally press the command for the hotkey to turn off the built in monitor and enabled the extended monitor.

If the issue persist it means it is an issue with the LCD and needs to be replaced.

Mar 28, 2010 | Dell Inspiron 1521 Notebook

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When i start up my dell inspiron 1521 it goes into startup mode then screen goes black.took the power cord out n it will start up plug it back in the screen will go blank again.it will run on battery n the...


I have a Dell Inspiron 1525 and had the same exact problem. I finally called Dell and they sent a tech out. They replaced my power cord and all the software. The reason for this is because Dell Inspirons has a default in the AC cords. Sounds like the AC power cord is the problem. You could find someone who has this cord and test your Inspiron with it or try calling Dell! It worked for me.

Jan 28, 2010 | Dell Keyboard for Inspiron 1420, 1520,...

1 Answer

My dell inspiron 1521 screen goes black!


Yes, most likely the inverter has failed if you can still make out the desktop but the screen is very dim. Below is the link to the service and repair manual for that model.

http://support.ap.dell.com/support/edocs/systems/ins1521/en/sm/index.htm

Jan 23, 2010 | Dell Inspiron 1521-JB Notebook

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I have a 1 year old Inspiron 1521 that is so slow it is not worth using.


Do a clean install on the machine with the recovery disks and put a bit more memory in and that will help a lot

Nov 24, 2009 | Dell Inspiron 1521 Notebook

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LCD Screen Repalcement


thats the screen problem u should change the screen than it gonna be alright,

Oct 10, 2009 | Dell Inspiron 1521 Laptop

1 Answer

Right half of Inspiron 1521's screen is dark


they there, it could already be a problem with the LCD if you stil have warranty call dell at 1 800 822 8965 - or try this hold down Fn then press the power button it will run diagnostics on your pc. if its still the same under diagnostics then it only means your LCD needs to be replaced.

if this helps please rate..

thanks
PJBHOi

Mar 09, 2009 | Dell Inspiron 1521 Notebook

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