Dell :: Inspiron 5160 Screen Backlight
May 15, 2009
First off before I get into the problem I want to say that I am an experienced computer technician having worked on hundreds of laptops in the past. So I'm very familiar with the problems and solutions for them.
I just want that disclaimer to be up front that I'm not a rookie seeking laymans terms or solutions.
Anyway, that aside. A customer dropped off an Inspiron 5160 last week. The system wouldn't half power on he said so after testing, I determined that the AC jack was 'broken'. Sure enough after disassembling the computer I could see on the bottom of the motherboard where the AC adapter had been knocked loose.
I replaced the motherboard and immediately noticed that the screen would display the BIOS Dell logo for about 5 seconds, and then cut off.
With a flash light I could see the data images on the screen, just no CCFL light from the bulb to brighten the screen.
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Feb 26, 2009
Is there a BIOS limitation on the 5160 for HDD capacity? I had to replace the drive and it is seeing a 160G drive as 70G.
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Apr 6, 2010
My display is not working on my Inspiron 5160. The image is there but very faint. When hooked to an external monitor everything displays properly on the external monitor.
What I am leaning towards is to first replace the LCD inverter. Not sure if I would spend the money on a whole new display for this old of a laptop.
It had been having a over heating problem before the display went out. I took the cooling fan out and cleaned out all the dust mat from the fins that were blocked. Now the fan seems to be keeping it cool, but the display did not come back.
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Dec 21, 2004
I've noticed that after I bring my 5160 back on after putting it in standby, the fan kicks on at high speed and stays on until I power down and restart. Is that a BIOS problem or hardware and what can I do about it?
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Jan 22, 2013
My Dell 7720 has uneven screen backlight on the edges, is it normal? Do all the 7720 dell laptops has the same issue with the screens, or it is only my problem?
Here is the video where I make screen darker and brighten: [URL] ......
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Feb 15, 2009
new screen/inverter/ backlight installed. NEW screen still black, but visible with flashlight. Went ahead and got ANOTHER inverter off eBay and tried that - screen still black. Haven't ever replaced a backlight, and the operation looks delicate (and expensive to HAVE done) ...
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Jan 25, 2015
On my old XPS, when the screen turned off, the keyboard backlight would turn off with it automatically. My new Inspiron 17 does not do this, and I can't find anything that seems to control the behavior. Is there a way to do this?
Alternately, is there a software solution to control the keyboard backlight?
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Mar 7, 2010
In the Mini PCI bay, there are two cards. One says Broadband A03-0027 JP, which appears to be a modem card.
My question is about the second card. I did a Google search, but couldn't find out its purpose. Here are the numbers on the card:
MFG 452 & EDW21 31 ....
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Jun 22, 2009
I got my E6400 last week and I found that everything all right except the color of LED screen, it's awful.
The color of the screen is pale, i had tried to calibrated the graphic settings but it doesn't improve too much.
Also, i saw some posts here said that the LG screen is better than the Samsung screen, but I can't agree with that because my screen is LG.
Is it normal for LED backlight screen that the color is more pale than the CCFL backlight screen or just the screen of mine had some problems?
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May 5, 2010
Is this the backlight? i hot glued the connector and wires in the socket into the inverter....?
I have replaced the inverter AND the flex cable (yes, the part numbers are right)
I have to shake or pressure point the left-middle of the screen for it to stop otherwise it stays unreadable...
when i hook it up to an external monitor...
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Mar 9, 2009
I have two questions on replacing a back light on my buddy's dell. First is it real hard to do? Second where is a good place to buy one?
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Apr 8, 2013
The keyboard backlight used to work, but it no longer does. I have tried Fn+F6, Fn+Right Arrow, and going to C: Program Files/ Dell/ Quickset/ BacklightKB and none of these are correcting the solution.
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May 3, 2009
Problem with my 2 week old sony vgn-z540 laptop.
Heres the problem:
When I try to use the brightness level in between LOW and HIGH, my LCD backlight would go off, and the screen would be dark and almost not visible at all. There are also vertical bars at random spots, stretching from the top of the screen to the bottom of the screen. I can only use it with either LOW setting or HIGH setting, nothing in between.
This problem just started on its own. I have not installed anything such as drivers or programs. No updates(was updated after the problem occured to try to fix it).
I love this laptop to death and has been the best laptop in the past 15 years. I would hate to see it go so I need this fixed.
I will update later with pictures when it gets dark here b/c the pictures now are not showing up with the bars.
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Jan 22, 2009
Now almost always when I trying to resume from standby on battery MBP isn't turning on backlight - I can even see MAC OS working normally but screen is off.
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Jan 19, 2015
my laptop screen backlight goes off, when I rest my hand on the left side of the touchpad. The darkening of the screen can be also reproduced when a small pressure is applied on the case just above the ethernet port or above the headphones port.
When the screen goes dark, I can see that everything is running normal, if I shine on it with a lamp or strong light. The resulting effect seems to be the same as if I would have lowered the brightness to minimum.
When I don't press the area described above, the screen is just fine. I am sure this problem is not software or OS related. I googled it a lot and my guess is lose connection on the inverter?
One last thing - idk if related - sometimes, when I boot up the laptop, the backlight is turned off and I have to adjust it by pressing F3.
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Aug 19, 2009
I have a dell inspiron 600m laptop and my screen is dimmed out. If I turn of my laptop and restart it, the display will come on for a second ( but it is a little bit reddish) and then I hear a noise and it light goes off, and I can;t see anymore. However, I am sure the computer is still running properly
I am sure that the computer is on, and is functioning properly for two reasons:
1- if it is sunny, i can see my desktop, and what ever I have open, be that a browser, a word document, so on and so forth
2-when i connect my laptop to an external display everything is fine...
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Mar 8, 2013
i m using Inspiron 15R SE 7520..when i tried to on the backlight its not working...i tried with fn+f6 nd still its nt working...what hsould i do to make it work?
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Dec 7, 2009
i have a sony vaio c2z - nvidia geforce 7400; x-black lcd
i have had a lot of problems with my display since august. although i didn't notice at the time, it happened soon after i installed the Win 7 RC.
when i start the laptop up the screen looks all distorted and the colours arent correct:
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but when i take screencaps and connect it to another monitor everything looks fine.
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i assumed the screen was knackered, but i installed a game a few weeks ago and it brought the display back to life, only for it to look crap again when i restarted. this also happened when i did a clean install of vista, only for the display to go bad when the updates installed.
i have tried many times, but have been unable to replicate this...............
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Nov 18, 2014
The Screen LED Backlight is no working? My computer is a IdealPad P400 .....
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Sep 29, 2014
I have an acer 7513 wsmi the screen went black no backlight. It worked using the blue video cable connected to a TV. I replaced with a new screen now have a backlight but no images etc. still works with TV though. I up put windows 7 on it so it has no acer drivers at all. I have tried alt 5 etc but no joy.
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Jan 11, 2014
Keyboard backlight - how do you turn it off
Windows 8 - touch Inspiron 7737
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Nov 17, 2012
I bought Dell Inspiron 15R SE (7520) like a week back. The laptop is just fantastic and it's working pretty well as intened. Today i just found out that this laptop has a KEYBOARD BACKLIGHT. I turned it on from the Windows Mobility Center, but it's not working at all, do i need to install any drivers for it? I work mostly during night time and a backlight would really good...
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Apr 5, 2010
Alright Well I bought a new inverter plugged it in and it still is doing the same thing. Only when i jiggle the wires the light goes on and i see the screen but not for long. I check for loose conncections but can't find any. The external display is fine. I'm wondering if it could be the actual bulb.
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Jun 23, 2014
My current problem is that when switching from the mobile power-saving GPU I lose the backlight on my screen when the high performance GPU kicks in. The HDMI output is displaying video when in High Performance, but the screen of the laptop will only show a picture with no backlight, and can only be seen by shining a light on the screen.
Just started happening the last few days, I've tried a system restore (didn't allow it), tried uninstalling all of the AMD drivers and software then reinstalling with their updated drivers, as well as the same process but with the HP drivers that came with the laptop, still the same result.Is it possible for the high performance GPU to be failing some how or is this a software issue?
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Jul 23, 2009
Got my MBP yesterday. It came with a 9CC2 screen, which is supposedly AUOptronics.
Contrast is very high, I reckon above 800:1. Colors and viewing angles are very good too. It has one problem: brightness.
I used it outside with sunlight but the backlight was not strong enough to overpower the reflections. My MBA was much brighter, and also the 9C89 screen on my first uMB was brighter.
When I'm working inside the house during the day I'm usually on 1 or 2 stripes from the max.
It's a not a huge problem for me because I did not really plan on keeping it for long but if I buy again I'll probably try to get another screen. Expecially the MB April 2009 screens interest me. I've never seen them in real life though.
Here are some pics of it next to an Asus 1101HA which was measured at 129 nits max by Notebookjournal.
The first three are on full brightness, than half brightness. Keep in mind that photographs can not really give an accurate impression of brightness levels.
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Nov 16, 2009
After using my new Vaio Z for a few hours i noticed a slightly greenish hue at the bottom of the screen(1600x900). It's mostly visible with white or very light background.
There are a few of those spots and i think it originates from uneven LED backlight. It's not instantly obvious, but after i've noticed it I find it somewhat distracting.
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Jan 9, 2009
In the past, I used to have an hp pavalion laptop. I usually kept the screen at a little past half brightness and in 3 years, the screen no longer even turns on which means the backlight is dead. The same thing is true for my mother's 17 inch lcd monitor. Now I realize that this may just be bad luck, but I don't want to risk anything with my new macbook.
What's a "safe" level to leave the brightness at? And is the LED long lasting? Is it expensive to replace? I hate dim screens but I don't want this screen to die that fast, I want to make this last AT LEAST 8 years.
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Apr 18, 2014
I am having a problem with my Pavilion dv6200
This is third time the same thing is happening to me. After i install some updates, display dimms, and background light became darker. When i restart computer, and enter BIOS, or if i am just looking at the screen before i log on to windows, backlight is normal.
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Oct 20, 2013
I have a new T540p with Windows 8.1 and fn+f5/f6 do nothing, while sound buttons work fine. Is there any way to change screen backlight brightness, coz it too birght for me by default.
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Apr 1, 2013
I have recently purchased Dell inspiron 15R Special Edition 7720 laptop.
1) Backlight not working, not sure whether I've this service or not because I can't see anything in Windows Mobility Centre
2) Keyboard and mouse pad works in safe mode but not in normal mode.
When I tried to remove Cypress trackpad, only mouse pad worked, not keyboard. Now only keyboard is working after Cypress trackpad reinstallation? I've tried to resolve it many times using drivers updater but failed all the time.
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